Merge pull request 'updated README' (#169) from readme-documentation into master

Reviewed-on: #169

.env.example

@@ -0,0 +1,21 @@
+#Serve Http
+PORT=7123
+HOST=127.0.0.1
+
+#PostgreSQL
+DB_HOST=localhost
+DB_USER=postgres
+DB_PASSWORD=strongpass
+DB_NAME=urdt_ussd
+DB_PORT=5432
+DB_SSLMODE=disable
+DB_TIMEZONE=Africa/Nairobi
+
+#External API Calls
+CREATE_ACCOUNT_URL=http://localhost:5003/api/v2/account/create
+TRACK_STATUS_URL=https://custodial.sarafu.africa/api/track/
+BALANCE_URL=https://custodial.sarafu.africa/api/account/status/
+TRACK_URL=http://localhost:5003/api/v2/account/status
+
+#AfricasTalking USSD POST endpoint
+AT_ENDPOINT=/ussd/africastalking

.gitignore

@@ -4,3 +4,6 @@ go.work*
 **/*/*.bin
 **/*/.state/
 cmd/.state/
+id_*
+*.gdbm
+*.log

README.md

@@ -1,8 +1,91 @@
-# ussd
+# URDT USSD service
 
-> USSD
+This is a USSD service built using the [go-vise](https://github.com/nolash/go-vise) engine.
 
-USSD service.
+## Prerequisites
+### 1. [go-vise](https://github.com/nolash/go-vise)
+
+Set up `go-vise` by cloning the repository into a separate directory. The main upstream repository is hosted at: `https://git.defalsify.org/vise.git`
+```
+git clone https://git.defalsify.org/vise.git
+```
+
+## Setup
+1. Clone the ussd repo in its own directory
+
+    ```
+    git clone https://git.grassecon.net/urdt/ussd.git
+    ```
+
+2. Navigate to the project directory.
+3. Enter the `services/registration` subfolder:
+    ```
+    cd services/registration
+    ```
+4. make the .bin files from the .vis files
+    ```
+    make VISE_PATH=/var/path/to/your/go-vise -B
+    ```
+5. Return to the project root (`cd ../..`)
+6. Run the USSD menu 
+    ```
+    go run cmd/main.go -session-id=0712345678
+    ```
+## Running the different binaries
+1. ### CLI: 
+    ```
+    go run cmd/main.go -session-id=0712345678
+    ```
+2. ### Africastalking: 
+    ```
+    go run cmd/africastalking/main.go
+    ```
+3. ### Async: 
+    ```
+    go run cmd/async/main.go
+    ```
+4. ### Http: 
+    ```
+    go run cmd/http/main.go
+    ```
+    
+## Flags
+Below are the supported flags:
+
+1. `-session-id`: 
+    
+    Specifies the session ID. (CLI only). 
+    
+    Default: `075xx2123`.
+
+    Example:
+    ```
+    go run cmd/main.go -session-id=0712345678
+    ```
+
+2. `-d`: 
+
+    Enables engine debug output. 
+    
+    Default: `false`.
+
+    Example:
+    ```
+    go run cmd/main.go -session-id=0712345678 -d
+    ```
+
+3. `-db`: 
+
+    Specifies the database type.
+    
+    Default: `gdbm`.
+
+    Example:
+    ```
+    go run cmd/main.go -session-id=0712345678 -d -db=postgres
+    ```
+
+    >Note: If using `-db=postgres`, ensure PostgreSQL is running with the connection details specified in your `.env` file.
 
 ## License
 

cmd/africastalking/main.go

@@ -0,0 +1,225 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"path"
+	"strconv"
+	"strings"
+	"syscall"
+
+	"git.defalsify.org/vise.git/engine"
+	"git.defalsify.org/vise.git/logging"
+	"git.defalsify.org/vise.git/resource"
+
+	"git.grassecon.net/urdt/ussd/config"
+	"git.grassecon.net/urdt/ussd/initializers"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+	httpserver "git.grassecon.net/urdt/ussd/internal/http"
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	"git.grassecon.net/urdt/ussd/remote"
+)
+
+var (
+	logg        = logging.NewVanilla()
+	scriptDir   = path.Join("services", "registration")
+	InfoLogger  *log.Logger
+	ErrorLogger *log.Logger
+)
+
+func init() {
+	initializers.LoadEnvVariables()
+
+	logFile := "urdt-ussd-africastalking.log"
+
+	file, err := os.OpenFile(logFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	InfoLogger = log.New(file, "INFO: ", log.Ldate|log.Ltime|log.Lshortfile)
+	ErrorLogger = log.New(file, "ERROR: ", log.Ldate|log.Ltime|log.Lshortfile)
+
+	// Inject into remote package
+	remote.InfoLogger = InfoLogger
+	remote.ErrorLogger = ErrorLogger
+}
+
+type atRequestParser struct{}
+
+func (arp *atRequestParser) GetSessionId(rq any) (string, error) {
+	rqv, ok := rq.(*http.Request)
+	if !ok {
+		ErrorLogger.Println("got an invalid request:", rq)
+		return "", handlers.ErrInvalidRequest
+	}
+
+	// Capture body (if any) for logging
+	body, err := io.ReadAll(rqv.Body)
+	if err != nil {
+		ErrorLogger.Println("failed to read request body:", err)
+		return "", fmt.Errorf("failed to read request body: %v", err)
+	}
+	// Reset the body for further reading
+	rqv.Body = io.NopCloser(bytes.NewReader(body))
+
+	// Log the body as JSON
+	bodyLog := map[string]string{"body": string(body)}
+	logBytes, err := json.Marshal(bodyLog)
+	if err != nil {
+		ErrorLogger.Println("failed to marshal request body:", err)
+	} else {
+		InfoLogger.Println("Received request:", string(logBytes))
+	}
+
+	if err := rqv.ParseForm(); err != nil {
+		ErrorLogger.Println("failed to parse form data: %v", err)
+		return "", fmt.Errorf("failed to parse form data: %v", err)
+	}
+
+	phoneNumber := rqv.FormValue("phoneNumber")
+	if phoneNumber == "" {
+		return "", fmt.Errorf("no phone number found")
+	}
+
+	return phoneNumber, nil
+}
+
+func (arp *atRequestParser) GetInput(rq any) ([]byte, error) {
+	rqv, ok := rq.(*http.Request)
+	if !ok {
+		return nil, handlers.ErrInvalidRequest
+	}
+	if err := rqv.ParseForm(); err != nil {
+		return nil, fmt.Errorf("failed to parse form data: %v", err)
+	}
+
+	text := rqv.FormValue("text")
+
+	parts := strings.Split(text, "*")
+	if len(parts) == 0 {
+		return nil, fmt.Errorf("no input found")
+	}
+
+	return []byte(parts[len(parts)-1]), nil
+}
+
+func main() {
+	config.LoadConfig()
+
+	var dbDir string
+	var resourceDir string
+	var size uint
+	var database string
+	var engineDebug bool
+	var host string
+	var port uint
+	flag.StringVar(&dbDir, "dbdir", ".state", "database dir to read from")
+	flag.StringVar(&resourceDir, "resourcedir", path.Join("services", "registration"), "resource dir")
+	flag.StringVar(&database, "db", "gdbm", "database to be used")
+	flag.BoolVar(&engineDebug, "d", false, "use engine debug output")
+	flag.UintVar(&size, "s", 160, "max size of output")
+	flag.StringVar(&host, "h", initializers.GetEnv("HOST", "127.0.0.1"), "http host")
+	flag.UintVar(&port, "p", initializers.GetEnvUint("PORT", 7123), "http port")
+	flag.Parse()
+
+	logg.Infof("start command", "dbdir", dbDir, "resourcedir", resourceDir, "outputsize", size)
+
+	ctx := context.Background()
+	ctx = context.WithValue(ctx, "Database", database)
+	pfp := path.Join(scriptDir, "pp.csv")
+
+	cfg := engine.Config{
+		Root:       "root",
+		OutputSize: uint32(size),
+		FlagCount:  uint32(128),
+	}
+
+	if engineDebug {
+		cfg.EngineDebug = true
+	}
+
+	menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
+	rs, err := menuStorageService.GetResource(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	err = menuStorageService.EnsureDbDir()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	userdataStore, err := menuStorageService.GetUserdataDb(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+	defer userdataStore.Close()
+
+	dbResource, ok := rs.(*resource.DbResource)
+	if !ok {
+		os.Exit(1)
+	}
+
+	lhs, err := handlers.NewLocalHandlerService(ctx, pfp, true, dbResource, cfg, rs)
+	lhs.SetDataStore(&userdataStore)
+
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	accountService := remote.AccountService{}
+	hl, err := lhs.GetHandler(&accountService)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	stateStore, err := menuStorageService.GetStateStore(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+	defer stateStore.Close()
+
+	rp := &atRequestParser{}
+	bsh := handlers.NewBaseSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl)
+	sh := httpserver.NewATSessionHandler(bsh)
+
+	mux := http.NewServeMux()
+	mux.Handle(initializers.GetEnv("AT_ENDPOINT", "/"), sh)
+
+	s := &http.Server{
+		Addr:    fmt.Sprintf("%s:%s", host, strconv.Itoa(int(port))),
+		Handler: mux,
+	}
+	s.RegisterOnShutdown(sh.Shutdown)
+
+	cint := make(chan os.Signal)
+	cterm := make(chan os.Signal)
+	signal.Notify(cint, os.Interrupt, syscall.SIGINT)
+	signal.Notify(cterm, os.Interrupt, syscall.SIGTERM)
+	go func() {
+		select {
+		case _ = <-cint:
+		case _ = <-cterm:
+		}
+		s.Shutdown(ctx)
+	}()
+	err = s.ListenAndServe()
+	if err != nil {
+		logg.Infof("Server closed with error", "err", err)
+	}
+}

cmd/async/main.go

@@ -0,0 +1,190 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"os/signal"
+	"path"
+	"syscall"
+
+	"git.defalsify.org/vise.git/engine"
+	"git.defalsify.org/vise.git/logging"
+	"git.defalsify.org/vise.git/resource"
+
+	"git.grassecon.net/urdt/ussd/config"
+	"git.grassecon.net/urdt/ussd/initializers"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	"git.grassecon.net/urdt/ussd/remote"
+)
+
+var (
+	logg      = logging.NewVanilla()
+	scriptDir = path.Join("services", "registration")
+	InfoLogger    *log.Logger
+	ErrorLogger   *log.Logger
+)
+
+func init() {
+	initializers.LoadEnvVariables()
+
+	logFile := "urdt-ussd-async.log"
+
+	file, err := os.OpenFile(logFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	InfoLogger = log.New(file, "INFO: ", log.Ldate|log.Ltime|log.Lshortfile)
+	ErrorLogger = log.New(file, "ERROR: ", log.Ldate|log.Ltime|log.Lshortfile)
+
+	// Inject into remote package
+	remote.InfoLogger = InfoLogger
+	remote.ErrorLogger = ErrorLogger
+}
+type asyncRequestParser struct {
+	sessionId string
+	input     []byte
+}
+
+func (p *asyncRequestParser) GetSessionId(r any) (string, error) {
+	return p.sessionId, nil
+}
+
+func (p *asyncRequestParser) GetInput(r any) ([]byte, error) {
+	return p.input, nil
+}
+
+func main() {
+	config.LoadConfig()
+
+	var sessionId string
+	var dbDir string
+	var resourceDir string
+	var size uint
+	var database string
+	var engineDebug bool
+	var host string
+	var port uint
+	flag.StringVar(&sessionId, "session-id", "075xx2123", "session id")
+	flag.StringVar(&dbDir, "dbdir", ".state", "database dir to read from")
+	flag.StringVar(&resourceDir, "resourcedir", path.Join("services", "registration"), "resource dir")
+	flag.StringVar(&database, "db", "gdbm", "database to be used")
+	flag.BoolVar(&engineDebug, "d", false, "use engine debug output")
+	flag.UintVar(&size, "s", 160, "max size of output")
+	flag.StringVar(&host, "h", initializers.GetEnv("HOST", "127.0.0.1"), "http host")
+	flag.UintVar(&port, "p", initializers.GetEnvUint("PORT", 7123), "http port")
+	flag.Parse()
+
+	logg.Infof("start command", "dbdir", dbDir, "resourcedir", resourceDir, "outputsize", size, "sessionId", sessionId)
+
+	ctx := context.Background()
+	ctx = context.WithValue(ctx, "Database", database)
+	pfp := path.Join(scriptDir, "pp.csv")
+
+	cfg := engine.Config{
+		Root:       "root",
+		OutputSize: uint32(size),
+		FlagCount:  uint32(128),
+	}
+
+	if engineDebug {
+		cfg.EngineDebug = true
+	}
+
+	menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
+	rs, err := menuStorageService.GetResource(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	err = menuStorageService.EnsureDbDir()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	userdataStore, err := menuStorageService.GetUserdataDb(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+	defer userdataStore.Close()
+
+	dbResource, ok := rs.(*resource.DbResource)
+	if !ok {
+		os.Exit(1)
+	}
+
+	lhs, err := handlers.NewLocalHandlerService(ctx, pfp, true, dbResource, cfg, rs)
+	lhs.SetDataStore(&userdataStore)
+	accountService := remote.AccountService{}
+
+	hl, err := lhs.GetHandler(&accountService)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	stateStore, err := menuStorageService.GetStateStore(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+	defer stateStore.Close()
+
+	rp := &asyncRequestParser{
+		sessionId: sessionId,
+	}
+	sh := handlers.NewBaseSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl)
+	cfg.SessionId = sessionId
+	rqs := handlers.RequestSession{
+		Ctx:    ctx,
+		Writer: os.Stdout,
+		Config: cfg,
+	}
+
+	cint := make(chan os.Signal)
+	cterm := make(chan os.Signal)
+	signal.Notify(cint, os.Interrupt, syscall.SIGINT)
+	signal.Notify(cterm, os.Interrupt, syscall.SIGTERM)
+	go func() {
+		select {
+		case _ = <-cint:
+		case _ = <-cterm:
+		}
+		sh.Shutdown()
+	}()
+
+	for true {
+		rqs, err = sh.Process(rqs)
+		if err != nil {
+			logg.ErrorCtxf(ctx, "error in process: %v", "err", err)
+			fmt.Errorf("error in process: %v", err)
+			os.Exit(1)
+		}
+		rqs, err = sh.Output(rqs)
+		if err != nil {
+			logg.ErrorCtxf(ctx, "error in output: %v", "err", err)
+			fmt.Errorf("error in output: %v", err)
+			os.Exit(1)
+		}
+		rqs, err = sh.Reset(rqs)
+		if err != nil {
+			logg.ErrorCtxf(ctx, "error in reset: %v", "err", err)
+			fmt.Errorf("error in reset: %v", err)
+			os.Exit(1)
+		}
+		fmt.Println("")
+		_, err = fmt.Scanln(&rqs.Input)
+		if err != nil {
+			logg.ErrorCtxf(ctx, "error in input", "err", err)
+			fmt.Errorf("error in input: %v", err)
+			os.Exit(1)
+		}
+	}
+}

cmd/http/main.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"flag"
 	"fmt"
+	"log"
 	"net/http"
 	"os"
 	"os/signal"
@@ -11,159 +12,92 @@ import (
 	"strconv"
 	"syscall"
 
-	"git.defalsify.org/vise.git/asm"
-	"git.defalsify.org/vise.git/db"
-	fsdb "git.defalsify.org/vise.git/db/fs"
-	gdbmdb "git.defalsify.org/vise.git/db/gdbm"
 	"git.defalsify.org/vise.git/engine"
-	"git.defalsify.org/vise.git/resource"
 	"git.defalsify.org/vise.git/logging"
+	"git.defalsify.org/vise.git/resource"
 
-	"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
+	"git.grassecon.net/urdt/ussd/config"
+	"git.grassecon.net/urdt/ussd/initializers"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
 	httpserver "git.grassecon.net/urdt/ussd/internal/http"
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	"git.grassecon.net/urdt/ussd/remote"
 )
 
 var (
-	logg = logging.NewVanilla()
+	logg      = logging.NewVanilla()
 	scriptDir = path.Join("services", "registration")
+	InfoLogger    *log.Logger
+	ErrorLogger   *log.Logger
 )
 
-func getFlags(fp string, debug bool) (*asm.FlagParser, error) {
-	flagParser := asm.NewFlagParser().WithDebug()
-	_, err := flagParser.Load(fp)
+func init() {
+	initializers.LoadEnvVariables()
+
+	logFile := "urdt-ussd-http.log"
+
+	file, err := os.OpenFile(logFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
 	if err != nil {
-		return nil, err
+		log.Fatal(err)
 	}
-	return flagParser, nil
-}
 
-func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, userdataStore db.Db) (*ussd.Handlers, error) {
+	InfoLogger = log.New(file, "INFO: ", log.Ldate|log.Ltime|log.Lshortfile)
+	ErrorLogger = log.New(file, "ERROR: ", log.Ldate|log.Ltime|log.Lshortfile)
 
-	ussdHandlers, err := ussd.NewHandlers(appFlags, userdataStore)
-	if err != nil {
-		return nil, err
-	}
-	rs.AddLocalFunc("select_language", ussdHandlers.SetLanguage)
-	rs.AddLocalFunc("create_account", ussdHandlers.CreateAccount)
-	rs.AddLocalFunc("save_pin", ussdHandlers.SavePin)
-	rs.AddLocalFunc("verify_pin", ussdHandlers.VerifyPin)
-	rs.AddLocalFunc("check_identifier", ussdHandlers.CheckIdentifier)
-	rs.AddLocalFunc("check_account_status", ussdHandlers.CheckAccountStatus)
-	rs.AddLocalFunc("authorize_account", ussdHandlers.Authorize)
-	rs.AddLocalFunc("quit", ussdHandlers.Quit)
-	rs.AddLocalFunc("check_balance", ussdHandlers.CheckBalance)
-	rs.AddLocalFunc("validate_recipient", ussdHandlers.ValidateRecipient)
-	rs.AddLocalFunc("transaction_reset", ussdHandlers.TransactionReset)
-	rs.AddLocalFunc("max_amount", ussdHandlers.MaxAmount)
-	rs.AddLocalFunc("validate_amount", ussdHandlers.ValidateAmount)
-	rs.AddLocalFunc("reset_transaction_amount", ussdHandlers.ResetTransactionAmount)
-	rs.AddLocalFunc("get_recipient", ussdHandlers.GetRecipient)
-	rs.AddLocalFunc("get_sender", ussdHandlers.GetSender)
-	rs.AddLocalFunc("get_amount", ussdHandlers.GetAmount)
-	rs.AddLocalFunc("reset_incorrect", ussdHandlers.ResetIncorrectPin)
-	rs.AddLocalFunc("save_firstname", ussdHandlers.SaveFirstname)
-	rs.AddLocalFunc("save_familyname", ussdHandlers.SaveFamilyname)
-	rs.AddLocalFunc("save_gender", ussdHandlers.SaveGender)
-	rs.AddLocalFunc("save_location", ussdHandlers.SaveLocation)
-	rs.AddLocalFunc("save_yob", ussdHandlers.SaveYob)
-	rs.AddLocalFunc("save_offerings", ussdHandlers.SaveOfferings)
-	rs.AddLocalFunc("quit_with_balance", ussdHandlers.QuitWithBalance)
-	rs.AddLocalFunc("reset_account_authorized", ussdHandlers.ResetAccountAuthorized)
-	rs.AddLocalFunc("reset_allow_update", ussdHandlers.ResetAllowUpdate)
-	rs.AddLocalFunc("get_profile_info", ussdHandlers.GetProfileInfo)
-	rs.AddLocalFunc("verify_yob", ussdHandlers.VerifyYob)
-	rs.AddLocalFunc("reset_incorrect_date_format", ussdHandlers.ResetIncorrectYob)
-	rs.AddLocalFunc("set_reset_single_edit", ussdHandlers.SetResetSingleEdit)
-	rs.AddLocalFunc("initiate_transaction", ussdHandlers.InitiateTransaction)
-
-	return ussdHandlers, nil
-}
-
-func ensureDbDir(dbDir string) error {
-	err := os.MkdirAll(dbDir, 0700)
-	if err != nil {
-		return fmt.Errorf("state dir create exited with error: %v\n", err)
-	}
-	return nil
-}
-
-func getStateStore(dbDir string, ctx context.Context) (db.Db, error) {
-	store := gdbmdb.NewGdbmDb()
-	storeFile := path.Join(dbDir, "state.gdbm")
-	store.Connect(ctx, storeFile)
-	return store, nil
-}
-
-func getUserdataDb(dbDir string, ctx context.Context) db.Db {
-	store := gdbmdb.NewGdbmDb()
-	storeFile := path.Join(dbDir, "userdata.gdbm")
-	store.Connect(ctx, storeFile)
-	
-	return store
-}
-
-func getResource(resourceDir string, ctx context.Context) (resource.Resource, error) {
-	store := fsdb.NewFsDb()
-	err := store.Connect(ctx, resourceDir)
-	if err != nil {
-		return nil, err
-	}
-	rfs := resource.NewDbResource(store)
-	return rfs, nil
+	// Inject into remote package
+	remote.InfoLogger = InfoLogger
+	remote.ErrorLogger = ErrorLogger
 }
 
 func main() {
+	config.LoadConfig()
+
 	var dbDir string
 	var resourceDir string
 	var size uint
+	var database string
 	var engineDebug bool
-	var stateDebug bool
 	var host string
 	var port uint
 	flag.StringVar(&dbDir, "dbdir", ".state", "database dir to read from")
 	flag.StringVar(&resourceDir, "resourcedir", path.Join("services", "registration"), "resource dir")
-	flag.BoolVar(&engineDebug, "engine-debug", false, "use engine debug output")
-	flag.BoolVar(&stateDebug, "state-debug", false, "use engine debug output")
+	flag.StringVar(&database, "db", "gdbm", "database to be used")
+	flag.BoolVar(&engineDebug, "d", false, "use engine debug output")
 	flag.UintVar(&size, "s", 160, "max size of output")
-	flag.StringVar(&host, "h", "127.0.0.1", "http host")
-	flag.UintVar(&port, "p", 7123, "http port")
+	flag.StringVar(&host, "h", initializers.GetEnv("HOST", "127.0.0.1"), "http host")
+	flag.UintVar(&port, "p", initializers.GetEnvUint("PORT", 7123), "http port")
 	flag.Parse()
 
-	logg.Infof("start command", "dbdir", dbDir, "resourcedir", resourceDir,  "outputsize", size)
+	logg.Infof("start command", "dbdir", dbDir, "resourcedir", resourceDir, "outputsize", size)
 
 	ctx := context.Background()
+	ctx = context.WithValue(ctx, "Database", database)
 	pfp := path.Join(scriptDir, "pp.csv")
-	flagParser, err := getFlags(pfp, true)
-
-	if err != nil {
-		os.Exit(1)
-	}
 
 	cfg := engine.Config{
 		Root:       "root",
 		OutputSize: uint32(size),
-		FlagCount:  uint32(16),
-	}
-	if stateDebug {
-		cfg.StateDebug = true
+		FlagCount:  uint32(128),
 	}
+
 	if engineDebug {
 		cfg.EngineDebug = true
 	}
 
-	rs, err := getResource(resourceDir, ctx)
+	menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
+	rs, err := menuStorageService.GetResource(ctx)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	err = ensureDbDir(dbDir)
+	err = menuStorageService.EnsureDbDir()
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	userdataStore := getUserdataDb(dbDir, ctx)
+	userdataStore, err := menuStorageService.GetUserdataDb(ctx)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
@@ -175,13 +109,22 @@ func main() {
 		os.Exit(1)
 	}
 
-	hl, err := getHandler(flagParser, dbResource, userdataStore)
+	lhs, err := handlers.NewLocalHandlerService(ctx, pfp, true, dbResource, cfg, rs)
+	lhs.SetDataStore(&userdataStore)
+
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	stateStore, err := getStateStore(dbDir, ctx)
+	accountService := remote.AccountService{}
+	hl, err := lhs.GetHandler(&accountService)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	stateStore, err := menuStorageService.GetStateStore(ctx)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
@@ -189,10 +132,10 @@ func main() {
 	defer stateStore.Close()
 
 	rp := &httpserver.DefaultRequestParser{}
-	//sh := httpserver.NewSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl.Init)
-	sh := httpserver.NewSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl)
+	bsh := handlers.NewBaseSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl)
+	sh := httpserver.ToSessionHandler(bsh)
 	s := &http.Server{
-		Addr: fmt.Sprintf("%s:%s", host, strconv.Itoa(int(port))),
+		Addr:    fmt.Sprintf("%s:%s", host, strconv.Itoa(int(port))),
 		Handler: sh,
 	}
 	s.RegisterOnShutdown(sh.Shutdown)

cmd/main.go

@@ -4,129 +4,57 @@ import (
 	"context"
 	"flag"
 	"fmt"
+	"log"
 	"os"
 	"path"
 
-	"git.defalsify.org/vise.git/asm"
-	"git.defalsify.org/vise.git/db"
-	fsdb "git.defalsify.org/vise.git/db/fs"
-	gdbmdb "git.defalsify.org/vise.git/db/gdbm"
 	"git.defalsify.org/vise.git/engine"
 	"git.defalsify.org/vise.git/logging"
-	"git.defalsify.org/vise.git/persist"
 	"git.defalsify.org/vise.git/resource"
-	"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
+	"git.grassecon.net/urdt/ussd/config"
+	"git.grassecon.net/urdt/ussd/initializers"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	"git.grassecon.net/urdt/ussd/remote"
 )
 
 var (
 	logg      = logging.NewVanilla()
 	scriptDir = path.Join("services", "registration")
+	InfoLogger    *log.Logger
+	ErrorLogger   *log.Logger
 )
 
-func getParser(fp string, debug bool) (*asm.FlagParser, error) {
-	flagParser := asm.NewFlagParser().WithDebug()
-	_, err := flagParser.Load(fp)
+func init() {
+	initializers.LoadEnvVariables()
+
+	logFile := "urdt-ussd-cli.log"
+
+	file, err := os.OpenFile(logFile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
 	if err != nil {
-		return nil, err
+		log.Fatal(err)
 	}
-	return flagParser, nil
-}
 
-func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, pe *persist.Persister, userdataStore db.Db) (*ussd.Handlers, error) {
+	InfoLogger = log.New(file, "INFO: ", log.Ldate|log.Ltime|log.Lshortfile)
+	ErrorLogger = log.New(file, "ERROR: ", log.Ldate|log.Ltime|log.Lshortfile)
 
-	ussdHandlers, err := ussd.NewHandlers(appFlags, userdataStore)
-	if err != nil {
-		return nil, err
-	}
-	ussdHandlers = ussdHandlers.WithPersister(pe)
-	rs.AddLocalFunc("select_language", ussdHandlers.SetLanguage)
-	rs.AddLocalFunc("create_account", ussdHandlers.CreateAccount)
-	rs.AddLocalFunc("save_pin", ussdHandlers.SavePin)
-	rs.AddLocalFunc("verify_pin", ussdHandlers.VerifyPin)
-	rs.AddLocalFunc("check_identifier", ussdHandlers.CheckIdentifier)
-	rs.AddLocalFunc("check_account_status", ussdHandlers.CheckAccountStatus)
-	rs.AddLocalFunc("authorize_account", ussdHandlers.Authorize)
-	rs.AddLocalFunc("quit", ussdHandlers.Quit)
-	rs.AddLocalFunc("check_balance", ussdHandlers.CheckBalance)
-	rs.AddLocalFunc("validate_recipient", ussdHandlers.ValidateRecipient)
-	rs.AddLocalFunc("transaction_reset", ussdHandlers.TransactionReset)
-	rs.AddLocalFunc("max_amount", ussdHandlers.MaxAmount)
-	rs.AddLocalFunc("validate_amount", ussdHandlers.ValidateAmount)
-	rs.AddLocalFunc("reset_transaction_amount", ussdHandlers.ResetTransactionAmount)
-	rs.AddLocalFunc("get_recipient", ussdHandlers.GetRecipient)
-	rs.AddLocalFunc("get_sender", ussdHandlers.GetSender)
-	rs.AddLocalFunc("get_amount", ussdHandlers.GetAmount)
-	rs.AddLocalFunc("reset_incorrect", ussdHandlers.ResetIncorrectPin)
-	rs.AddLocalFunc("save_firstname", ussdHandlers.SaveFirstname)
-	rs.AddLocalFunc("save_familyname", ussdHandlers.SaveFamilyname)
-	rs.AddLocalFunc("save_gender", ussdHandlers.SaveGender)
-	rs.AddLocalFunc("save_location", ussdHandlers.SaveLocation)
-	rs.AddLocalFunc("save_yob", ussdHandlers.SaveYob)
-	rs.AddLocalFunc("save_offerings", ussdHandlers.SaveOfferings)
-	rs.AddLocalFunc("quit_with_balance", ussdHandlers.QuitWithBalance)
-	rs.AddLocalFunc("reset_account_authorized", ussdHandlers.ResetAccountAuthorized)
-	rs.AddLocalFunc("reset_allow_update", ussdHandlers.ResetAllowUpdate)
-	rs.AddLocalFunc("get_profile_info", ussdHandlers.GetProfileInfo)
-	rs.AddLocalFunc("verify_yob", ussdHandlers.VerifyYob)
-	rs.AddLocalFunc("reset_incorrect_date_format", ussdHandlers.ResetIncorrectYob)
-	rs.AddLocalFunc("set_reset_single_edit", ussdHandlers.SetResetSingleEdit)
-	rs.AddLocalFunc("initiate_transaction", ussdHandlers.InitiateTransaction)
-
-	return ussdHandlers, nil
-}
-
-func ensureDbDir(dbDir string) error {
-	err := os.MkdirAll(dbDir, 0700)
-	if err != nil {
-		return fmt.Errorf("state dir create exited with error: %v\n", err)
-	}
-	return nil
-}
-
-func getPersister(dbDir string, ctx context.Context) (*persist.Persister, error) {
-	err := ensureDbDir(dbDir)
-	if err != nil {
-		return nil, err
-	}
-	store := gdbmdb.NewGdbmDb()
-	storeFile := path.Join(dbDir, "state.gdbm")
-	store.Connect(ctx, storeFile)
-	pr := persist.NewPersister(store)
-	return pr, nil
-}
-
-func getUserdataDb(dbDir string, ctx context.Context) db.Db {
-	store := gdbmdb.NewGdbmDb()
-	storeFile := path.Join(dbDir, "userdata.gdbm")
-	store.Connect(ctx, storeFile)
-
-	return store
-}
-
-func getResource(resourceDir string, ctx context.Context) (resource.Resource, error) {
-	store := fsdb.NewFsDb()
-	err := store.Connect(ctx, resourceDir)
-	if err != nil {
-		return nil, err
-	}
-	rfs := resource.NewDbResource(store)
-	return rfs, nil
-}
-
-func getEngine(cfg engine.Config, rs resource.Resource, pr *persist.Persister) *engine.DefaultEngine {
-	en := engine.NewEngine(cfg, rs)
-	en = en.WithPersister(pr)
-	return en
+	// Inject into remote package
+	remote.InfoLogger = InfoLogger
+	remote.ErrorLogger = ErrorLogger
 }
 
 func main() {
+	config.LoadConfig()
+
 	var dbDir string
 	var size uint
 	var sessionId string
-	var debug bool
+	var database string
+	var engineDebug bool
 	flag.StringVar(&sessionId, "session-id", "075xx2123", "session id")
+	flag.StringVar(&database, "db", "gdbm", "database to be used")
 	flag.StringVar(&dbDir, "dbdir", ".state", "database dir to read from")
-	flag.BoolVar(&debug, "d", false, "use engine debug output")
+	flag.BoolVar(&engineDebug, "d", false, "use engine debug output")
 	flag.UintVar(&size, "s", 160, "max size of output")
 	flag.Parse()
 
@@ -134,33 +62,38 @@ func main() {
 
 	ctx := context.Background()
 	ctx = context.WithValue(ctx, "SessionId", sessionId)
+	ctx = context.WithValue(ctx, "Database", database)
 	pfp := path.Join(scriptDir, "pp.csv")
-	flagParser, err := getParser(pfp, true)
-
-	if err != nil {
-		os.Exit(1)
-	}
 
 	cfg := engine.Config{
 		Root:       "root",
 		SessionId:  sessionId,
 		OutputSize: uint32(size),
-		FlagCount:  uint32(16),
+		FlagCount:  uint32(128),
 	}
 
-	rs, err := getResource(scriptDir, ctx)
+	resourceDir := scriptDir
+	menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
+
+	err := menuStorageService.EnsureDbDir()
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	pe, err := getPersister(dbDir, ctx)
+	rs, err := menuStorageService.GetResource(ctx)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	store := getUserdataDb(dbDir, ctx)
+	pe, err := menuStorageService.GetPersister(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	userdatastore, err := menuStorageService.GetUserdataDb(ctx)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
@@ -172,25 +105,29 @@ func main() {
 		os.Exit(1)
 	}
 
-	hl, err := getHandler(flagParser, dbResource, pe, store)
+	lhs, err := handlers.NewLocalHandlerService(ctx, pfp, true, dbResource, cfg, rs)
+	lhs.SetDataStore(&userdatastore)
+	lhs.SetPersister(pe)
+
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	en := getEngine(cfg, rs, pe)
-	en = en.WithFirst(hl.Init)
-	if debug {
-		en = en.WithDebug(nil)
-	}
-
-	_, err = en.Init(ctx)
+	accountService := remote.AccountService{}
+	hl, err := lhs.GetHandler(&accountService)
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "engine init exited with error: %v\n", err)
+		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	err = engine.Loop(ctx, en, os.Stdin, os.Stdout)
+	en := lhs.GetEngine()
+	en = en.WithFirst(hl.Init)
+	if engineDebug {
+		en = en.WithDebug(nil)
+	}
+
+	err = engine.Loop(ctx, en, os.Stdin, os.Stdout, nil)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "loop exited with error: %v\n", err)
 		os.Exit(1)

common/db.go

@@ -0,0 +1,50 @@
+package common
+
+import (
+	"encoding/binary"
+
+	"git.defalsify.org/vise.git/logging"
+)
+
+type DataTyp uint16
+
+const (
+	DATA_ACCOUNT DataTyp = iota
+	DATA_ACCOUNT_CREATED
+	DATA_TRACKING_ID
+	DATA_PUBLIC_KEY
+	DATA_CUSTODIAL_ID
+	DATA_ACCOUNT_PIN
+	DATA_ACCOUNT_STATUS
+	DATA_FIRST_NAME
+	DATA_FAMILY_NAME
+	DATA_YOB
+	DATA_LOCATION
+	DATA_GENDER
+	DATA_OFFERINGS
+	DATA_RECIPIENT
+	DATA_AMOUNT
+	DATA_TEMPORARY_VALUE
+	DATA_ACTIVE_SYM
+	DATA_ACTIVE_BAL
+	DATA_BLOCKED_NUMBER
+	DATA_PUBLIC_KEY_REVERSE
+	DATA_ACTIVE_DECIMAL
+	DATA_ACTIVE_ADDRESS
+	DATA_TRANSACTIONS
+)
+
+var (
+	logg = logging.NewVanilla().WithDomain("urdt-common")
+)
+
+func typToBytes(typ DataTyp) []byte {
+	var b [2]byte
+	binary.BigEndian.PutUint16(b[:], uint16(typ))
+	return b[:]
+}
+
+func PackKey(typ DataTyp, data []byte) []byte {
+	v := typToBytes(typ)
+	return append(v, data...)
+}

common/hex.go

@@ -0,0 +1,31 @@
+package common
+
+import (
+	"encoding/hex"
+	"strings"
+)
+
+func NormalizeHex(s string) (string, error) {
+	if len(s) >= 2 {
+		if s[:2] == "0x" {
+			s = s[2:]
+		}
+	}
+	r, err := hex.DecodeString(s)
+	if err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(r), nil
+}
+
+func IsSameHex(left string, right string) bool {
+	bl, err := NormalizeHex(left)
+	if err != nil {
+		return false
+	}
+	br, err := NormalizeHex(left)
+	if err != nil {
+		return false
+	}
+	return strings.Compare(bl, br) == 0
+}

common/storage.go

@@ -0,0 +1,52 @@
+package common
+
+import (
+	"context"
+	"errors"
+
+	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/resource"
+	"git.defalsify.org/vise.git/persist"
+	"git.grassecon.net/urdt/ussd/internal/storage"
+)
+
+func StoreToDb(store *UserDataStore) db.Db {
+	return store.Db
+}
+
+func StoreToPrefixDb(store *UserDataStore, pfx []byte) storage.PrefixDb {
+	return storage.NewSubPrefixDb(store.Db, pfx)	
+}
+
+type StorageServices interface {
+	GetPersister(ctx context.Context) (*persist.Persister, error)
+	GetUserdataDb(ctx context.Context) (db.Db, error)
+	GetResource(ctx context.Context) (resource.Resource, error)
+	EnsureDbDir() error
+}
+
+type StorageService struct {
+	svc *storage.MenuStorageService
+}
+
+func NewStorageService(dbDir string) *StorageService {
+	return &StorageService{
+		svc: storage.NewMenuStorageService(dbDir, ""),
+	}
+}
+
+func(ss *StorageService) GetPersister(ctx context.Context) (*persist.Persister, error) {
+	return ss.svc.GetPersister(ctx)
+}
+	
+func(ss *StorageService) GetUserdataDb(ctx context.Context) (db.Db, error) {
+	return ss.svc.GetUserdataDb(ctx)
+}
+
+func(ss *StorageService) GetResource(ctx context.Context) (resource.Resource, error) {
+	return nil, errors.New("not implemented")
+}
+
+func(ss *StorageService) EnsureDbDir() error {
+	return ss.svc.EnsureDbDir()
+}

common/user_store.go

@@ -1,4 +1,4 @@
-package utils
+package common
 
 import (
 	"context"
@@ -16,7 +16,7 @@ type UserDataStore struct {
 	db.Db
 }
 
-// ReadEntry retrieves an entry from the store based on the provided parameters.
+// ReadEntry retrieves an entry to the userdata store.
 func (store *UserDataStore) ReadEntry(ctx context.Context, sessionId string, typ DataTyp) ([]byte, error) {
 	store.SetPrefix(db.DATATYPE_USERDATA)
 	store.SetSession(sessionId)
@@ -24,6 +24,8 @@ func (store *UserDataStore) ReadEntry(ctx context.Context, sessionId string, typ
 	return store.Get(ctx, k)
 }
 
+// WriteEntry adds an entry to the userdata store.
+// BUG: this uses sessionId twice
 func (store *UserDataStore) WriteEntry(ctx context.Context, sessionId string, typ DataTyp, value []byte) error {
 	store.SetPrefix(db.DATATYPE_USERDATA)
 	store.SetSession(sessionId)

common/vouchers.go

@@ -0,0 +1,157 @@
+package common
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+)
+
+// VoucherMetadata helps organize data fields
+type VoucherMetadata struct {
+	Symbols   string
+	Balances  string
+	Decimals  string
+	Addresses string
+}
+
+// ProcessVouchers converts holdings into formatted strings
+func ProcessVouchers(holdings []dataserviceapi.TokenHoldings) VoucherMetadata {
+	var data VoucherMetadata
+	var symbols, balances, decimals, addresses []string
+
+	for i, h := range holdings {
+		symbols = append(symbols, fmt.Sprintf("%d:%s", i+1, h.TokenSymbol))
+		balances = append(balances, fmt.Sprintf("%d:%s", i+1, h.Balance))
+		decimals = append(decimals, fmt.Sprintf("%d:%s", i+1, h.TokenDecimals))
+		addresses = append(addresses, fmt.Sprintf("%d:%s", i+1, h.ContractAddress))
+	}
+
+	data.Symbols = strings.Join(symbols, "\n")
+	data.Balances = strings.Join(balances, "\n")
+	data.Decimals = strings.Join(decimals, "\n")
+	data.Addresses = strings.Join(addresses, "\n")
+
+	return data
+}
+
+//func StoreVouchers(db storage.PrefixDb, data VoucherMetadata) {
+//		value, err := db.Put(ctx, []byte(key))
+//		if err != nil {
+//			return nil, fmt.Errorf("failed to get %s: %v", key, err)
+//		}
+//		data[key] = string(value)
+//	}
+//}
+
+// GetVoucherData retrieves and matches voucher data
+func GetVoucherData(ctx context.Context, db storage.PrefixDb, input string) (*dataserviceapi.TokenHoldings, error) {
+	keys := []string{"sym", "bal", "deci", "addr"}
+	data := make(map[string]string)
+
+	for _, key := range keys {
+		value, err := db.Get(ctx, []byte(key))
+		if err != nil {
+			return nil, fmt.Errorf("failed to get %s: %v", key, err)
+		}
+		data[key] = string(value)
+	}
+
+	symbol, balance, decimal, address := MatchVoucher(input,
+		data["sym"],
+		data["bal"],
+		data["deci"],
+		data["addr"])
+
+	if symbol == "" {
+		return nil, nil
+	}
+
+	return &dataserviceapi.TokenHoldings{
+		TokenSymbol:     string(symbol),
+		Balance:         string(balance),
+		TokenDecimals:   string(decimal),
+		ContractAddress: string(address),
+	}, nil
+}
+
+// MatchVoucher finds the matching voucher symbol, balance, decimals and contract address based on the input.
+func MatchVoucher(input, symbols, balances, decimals, addresses string) (symbol, balance, decimal, address string) {
+	symList := strings.Split(symbols, "\n")
+	balList := strings.Split(balances, "\n")
+	decList := strings.Split(decimals, "\n")
+	addrList := strings.Split(addresses, "\n")
+
+	logg.Tracef("found" , "symlist", symList, "syms", symbols, "input", input)
+	for i, sym := range symList {
+		parts := strings.SplitN(sym, ":", 2)
+
+		if input == parts[0] || strings.EqualFold(input, parts[1]) {
+			symbol = parts[1]
+			if i < len(balList) {
+				balance = strings.SplitN(balList[i], ":", 2)[1]
+			}
+			if i < len(decList) {
+				decimal = strings.SplitN(decList[i], ":", 2)[1]
+			}
+			if i < len(addrList) {
+				address = strings.SplitN(addrList[i], ":", 2)[1]
+			}
+			break
+		}
+	}
+	return
+}
+
+// StoreTemporaryVoucher saves voucher metadata as temporary entries in the DataStore.
+func StoreTemporaryVoucher(ctx context.Context, store DataStore, sessionId string, data *dataserviceapi.TokenHoldings) error {
+	tempData := fmt.Sprintf("%s,%s,%s,%s", data.TokenSymbol, data.Balance, data.TokenDecimals, data.ContractAddress)
+
+	if err := store.WriteEntry(ctx, sessionId, DATA_TEMPORARY_VALUE, []byte(tempData)); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// GetTemporaryVoucherData retrieves temporary voucher metadata from the DataStore.
+func GetTemporaryVoucherData(ctx context.Context, store DataStore, sessionId string) (*dataserviceapi.TokenHoldings, error) {
+	temp_data, err := store.ReadEntry(ctx, sessionId, DATA_TEMPORARY_VALUE)
+	if err != nil {
+		return nil, err
+	}
+
+	values := strings.SplitN(string(temp_data), ",", 4)
+
+	data := &dataserviceapi.TokenHoldings{}
+
+	data.TokenSymbol = values[0]
+	data.Balance = values[1]
+	data.TokenDecimals = values[2]
+	data.ContractAddress = values[3]
+
+	return data, nil
+}
+
+// UpdateVoucherData sets the active voucher data and clears the temporary voucher data in the DataStore.
+func UpdateVoucherData(ctx context.Context, store DataStore, sessionId string, data *dataserviceapi.TokenHoldings) error {
+	logg.TraceCtxf(ctx, "dtal", "data", data)
+	// Active voucher data entries
+	activeEntries := map[DataTyp][]byte{
+		DATA_ACTIVE_SYM:     []byte(data.TokenSymbol),
+		DATA_ACTIVE_BAL:     []byte(data.Balance),
+		DATA_ACTIVE_DECIMAL: []byte(data.TokenDecimals),
+		DATA_ACTIVE_ADDRESS: []byte(data.ContractAddress),
+	}
+
+	// Write active data
+	for key, value := range activeEntries {
+		if err := store.WriteEntry(ctx, sessionId, key, value); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

common/vouchers_test.go

@@ -0,0 +1,197 @@
+package common
+
+import (
+	"context"
+	"fmt"
+	"testing"
+
+	"github.com/alecthomas/assert/v2"
+	"github.com/stretchr/testify/require"
+
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	memdb "git.defalsify.org/vise.git/db/mem"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+)
+
+// InitializeTestDb sets up and returns an in-memory database and store.
+func InitializeTestDb(t *testing.T) (context.Context, *UserDataStore) {
+	ctx := context.Background()
+
+	// Initialize memDb
+	db := memdb.NewMemDb()
+	err := db.Connect(ctx, "")
+	require.NoError(t, err, "Failed to connect to memDb")
+
+	// Create UserDataStore with memDb
+	store := &UserDataStore{Db: db}
+
+	t.Cleanup(func() {
+		db.Close() // Ensure the DB is closed after each test
+	})
+
+	return ctx, store
+}
+
+func TestMatchVoucher(t *testing.T) {
+	symbols := "1:SRF\n2:MILO"
+	balances := "1:100\n2:200"
+	decimals := "1:6\n2:4"
+	addresses := "1:0xd4c288865Ce\n2:0x41c188d63Qa"
+
+	// Test for valid voucher
+	symbol, balance, decimal, address := MatchVoucher("2", symbols, balances, decimals, addresses)
+
+	// Assertions for valid voucher
+	assert.Equal(t, "MILO", symbol)
+	assert.Equal(t, "200", balance)
+	assert.Equal(t, "4", decimal)
+	assert.Equal(t, "0x41c188d63Qa", address)
+
+	// Test for non-existent voucher
+	symbol, balance, decimal, address = MatchVoucher("3", symbols, balances, decimals, addresses)
+
+	// Assertions for non-match
+	assert.Equal(t, "", symbol)
+	assert.Equal(t, "", balance)
+	assert.Equal(t, "", decimal)
+	assert.Equal(t, "", address)
+}
+
+func TestProcessVouchers(t *testing.T) {
+	holdings := []dataserviceapi.TokenHoldings{
+		{ContractAddress: "0xd4c288865Ce", TokenSymbol: "SRF", TokenDecimals: "6", Balance: "100"},
+		{ContractAddress: "0x41c188d63Qa", TokenSymbol: "MILO", TokenDecimals: "4", Balance: "200"},
+	}
+
+	expectedResult := VoucherMetadata{
+		Symbols:   "1:SRF\n2:MILO",
+		Balances:  "1:100\n2:200",
+		Decimals:  "1:6\n2:4",
+		Addresses: "1:0xd4c288865Ce\n2:0x41c188d63Qa",
+	}
+
+	result := ProcessVouchers(holdings)
+
+	assert.Equal(t, expectedResult, result)
+}
+
+func TestGetVoucherData(t *testing.T) {
+	ctx := context.Background()
+
+	db := memdb.NewMemDb()
+	err := db.Connect(ctx, "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	spdb := storage.NewSubPrefixDb(db, []byte("vouchers"))
+
+	// Test voucher data
+	mockData := map[string][]byte{
+		"sym":  []byte("1:SRF\n2:MILO"),
+		"bal":  []byte("1:100\n2:200"),
+		"deci": []byte("1:6\n2:4"),
+		"addr": []byte("1:0xd4c288865Ce\n2:0x41c188d63Qa"),
+	}
+
+	// Put the data
+	for key, value := range mockData {
+		err = spdb.Put(ctx, []byte(key), []byte(value))
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	result, err := GetVoucherData(ctx, spdb, "1")
+
+	assert.NoError(t, err)
+	assert.Equal(t, "SRF", result.TokenSymbol)
+	assert.Equal(t, "100", result.Balance)
+	assert.Equal(t, "6", result.TokenDecimals)
+	assert.Equal(t, "0xd4c288865Ce", result.ContractAddress)
+}
+
+func TestStoreTemporaryVoucher(t *testing.T) {
+	ctx, store := InitializeTestDb(t)
+	sessionId := "session123"
+
+	// Test data
+	voucherData := &dataserviceapi.TokenHoldings{
+		TokenSymbol:     "SRF",
+		Balance:         "200",
+		TokenDecimals:   "6",
+		ContractAddress: "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9",
+	}
+
+	// Execute the function being tested
+	err := StoreTemporaryVoucher(ctx, store, sessionId, voucherData)
+	require.NoError(t, err)
+
+	// Verify stored data
+	expectedData := fmt.Sprintf("%s,%s,%s,%s", "SRF", "200", "6", "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9")
+
+	storedValue, err := store.ReadEntry(ctx, sessionId, DATA_TEMPORARY_VALUE)
+	require.NoError(t, err)
+	require.Equal(t, expectedData, string(storedValue), "Mismatch for key %v", DATA_TEMPORARY_VALUE)
+}
+
+func TestGetTemporaryVoucherData(t *testing.T) {
+	ctx, store := InitializeTestDb(t)
+	sessionId := "session123"
+
+	// Test voucher data
+	tempData := &dataserviceapi.TokenHoldings{
+		TokenSymbol:     "SRF",
+		Balance:         "200",
+		TokenDecimals:   "6",
+		ContractAddress: "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9",
+	}
+
+	// Store the data
+	err := StoreTemporaryVoucher(ctx, store, sessionId, tempData)
+	require.NoError(t, err)
+
+	// Execute the function being tested
+	data, err := GetTemporaryVoucherData(ctx, store, sessionId)
+	require.NoError(t, err)
+	require.Equal(t, tempData, data)
+}
+
+func TestUpdateVoucherData(t *testing.T) {
+	ctx, store := InitializeTestDb(t)
+	sessionId := "session123"
+
+	// New voucher data
+	newData := &dataserviceapi.TokenHoldings{
+		TokenSymbol:     "SRF",
+		Balance:         "200",
+		TokenDecimals:   "6",
+		ContractAddress: "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9",
+	}
+
+	// Old temporary data
+	tempData := &dataserviceapi.TokenHoldings{
+		TokenSymbol:     "OLD",
+		Balance:         "100",
+		TokenDecimals:   "8",
+		ContractAddress: "0xold",
+	}
+	require.NoError(t, StoreTemporaryVoucher(ctx, store, sessionId, tempData))
+
+	// Execute update
+	err := UpdateVoucherData(ctx, store, sessionId, newData)
+	require.NoError(t, err)
+
+	// Verify active data was stored correctly
+	activeEntries := map[DataTyp][]byte{
+		DATA_ACTIVE_SYM:     []byte(newData.TokenSymbol),
+		DATA_ACTIVE_BAL:     []byte(newData.Balance),
+		DATA_ACTIVE_DECIMAL: []byte(newData.TokenDecimals),
+		DATA_ACTIVE_ADDRESS: []byte(newData.ContractAddress),
+	}
+
+	for key, expectedValue := range activeEntries {
+		storedValue, err := store.ReadEntry(ctx, sessionId, key)
+		require.NoError(t, err)
+		require.Equal(t, expectedValue, storedValue, "Active data mismatch for key %v", key)
+	}
+}

config/config.go

@@ -1,10 +1,70 @@
 package config
 
+import (
+	"net/url"
 
-
-const (
-    CreateAccountURL = "https://custodial.sarafu.africa/api/account/create"
-    TrackStatusURL   = "https://custodial.sarafu.africa/api/track/"
-    BalanceURL       = "https://custodial.sarafu.africa/api/account/status/"
+	"git.grassecon.net/urdt/ussd/initializers"
 )
 
+const (
+	createAccountPath = "/api/v2/account/create"
+	trackStatusPath = "/api/track"
+	balancePathPrefix = "/api/account"
+	trackPath = "/api/v2/account/status"
+	voucherHoldingsPathPrefix = "/api/v1/holdings"
+	voucherTransfersPathPrefix = "/api/v1/transfers/last10"
+	voucherDataPathPrefix = "/api/v1/token"
+)
+
+var (
+	custodialURLBase string
+	dataURLBase string
+	CustodialAPIKey string
+	DataAPIKey string
+)
+
+var (
+	CreateAccountURL string
+	TrackStatusURL   string
+	BalanceURL	string
+	TrackURL         string
+	VoucherHoldingsURL	string
+	VoucherTransfersURL	string
+	VoucherDataURL	string
+)
+
+func setBase() error {
+	var err error
+
+	custodialURLBase = initializers.GetEnv("CUSTODIAL_URL_BASE", "http://localhost:5003")
+	dataURLBase = initializers.GetEnv("DATA_URL_BASE", "http://localhost:5006")
+	CustodialAPIKey = initializers.GetEnv("CUSTODIAL_API_KEY", "xd")
+	DataAPIKey = initializers.GetEnv("DATA_API_KEY", "xd")
+
+	_, err = url.JoinPath(custodialURLBase, "/foo")
+	if err != nil {
+		return err
+	}
+	_, err = url.JoinPath(dataURLBase, "/bar")
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+// LoadConfig initializes the configuration values after environment variables are loaded.
+func LoadConfig() error {
+	err := setBase()
+	if err != nil {
+		return err
+	}
+	CreateAccountURL, _  = url.JoinPath(custodialURLBase, createAccountPath)
+	TrackStatusURL, _ = url.JoinPath(custodialURLBase, trackStatusPath)
+	BalanceURL, _ = url.JoinPath(custodialURLBase, balancePathPrefix)
+	TrackURL, _ = url.JoinPath(custodialURLBase, trackPath)
+	VoucherHoldingsURL, _ = url.JoinPath(dataURLBase, voucherHoldingsPathPrefix)
+	VoucherTransfersURL, _ = url.JoinPath(dataURLBase, voucherTransfersPathPrefix)
+	VoucherDataURL, _ = url.JoinPath(dataURLBase, voucherDataPathPrefix)
+
+	return nil
+}

devtools/admin/admin_numbers.json

@@ -0,0 +1,7 @@
+{
+  "admins": [
+    {
+      "phonenumber" : "<replace with any admin number to test with >"
+    }
+   ]
+}

devtools/admin/commands/seed.go

@@ -0,0 +1,47 @@
+package commands
+
+import (
+	"context"
+	"encoding/json"
+	"os"
+
+	"git.defalsify.org/vise.git/logging"
+	"git.grassecon.net/urdt/ussd/internal/utils"
+)
+
+var (
+	logg = logging.NewVanilla().WithDomain("adminstore")
+)
+
+type Admin struct {
+	PhoneNumber string `json:"phonenumber"`
+}
+
+type Config struct {
+	Admins []Admin `json:"admins"`
+}
+
+func Seed(ctx context.Context) error {
+	var config Config
+	adminstore, err := utils.NewAdminStore(ctx, "../admin_numbers")
+	store := adminstore.FsStore
+	if err != nil {
+		return err
+	}
+	defer store.Close()
+	data, err := os.ReadFile("admin_numbers.json")
+	if err != nil {
+		return err
+	}
+	if err := json.Unmarshal(data, &config); err != nil {
+		return err
+	}
+	for _, admin := range config.Admins {
+		err := store.Put(ctx, []byte(admin.PhoneNumber), []byte("1"))
+		if err != nil {
+			logg.Printf(logging.LVL_DEBUG, "Failed to insert admin number", admin.PhoneNumber)
+			return err
+		}
+	}
+	return nil
+}

devtools/admin/main.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"context"
+	"log"
+
+	"git.grassecon.net/urdt/ussd/devtools/admin/commands"
+)
+
+func main() {
+	ctx := context.Background()
+	err := commands.Seed(ctx)
+	if err != nil {
+		log.Fatalf("Failed to initialize a list of admins with error %s", err)
+	}
+
+}

go.mod

@@ -1,23 +1,43 @@
 module git.grassecon.net/urdt/ussd
 
-go 1.22.6
+go 1.23.0
+
+toolchain go1.23.2
 
 require (
-	git.defalsify.org/vise.git v0.1.0-rc.3.0.20240911162138-1f2af8672dc7
+	git.defalsify.org/vise.git v0.2.1-0.20241017112704-307fa6fcdc6b
 	github.com/alecthomas/assert/v2 v2.2.2
+	github.com/grassrootseconomics/eth-custodial v1.3.0-beta
+	github.com/peteole/testdata-loader v0.3.0
 	gopkg.in/leonelquinteros/gotext.v1 v1.3.1
 )
 
+require github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a // indirect
+
+require (
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
+	github.com/jackc/pgx/v5 v5.7.1 // indirect
+	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/joho/godotenv v1.5.1
+	github.com/kr/text v0.2.0 // indirect
+	github.com/rogpeppe/go-internal v1.13.1 // indirect
+	golang.org/x/crypto v0.27.0 // indirect
+	golang.org/x/sync v0.8.0 // indirect
+	golang.org/x/text v0.18.0 // indirect
+)
+
 require (
 	github.com/alecthomas/participle/v2 v2.0.0 // indirect
 	github.com/alecthomas/repr v0.2.0 // indirect
 	github.com/barbashov/iso639-3 v0.0.0-20211020172741-1f4ffb2d8d1c // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/fxamacker/cbor/v2 v2.4.0 // indirect
+	github.com/gofrs/uuid v4.4.0+incompatible
 	github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4 // indirect
 	github.com/hexops/gotextdiff v1.0.3 // indirect
 	github.com/mattn/kinako v0.0.0-20170717041458-332c0a7e205a // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/stretchr/objx v0.5.2 // indirect
 	github.com/stretchr/testify v1.9.0
 	github.com/x448/float16 v0.8.4 // indirect

go.sum

@@ -1,5 +1,5 @@
-git.defalsify.org/vise.git v0.1.0-rc.3.0.20240911162138-1f2af8672dc7 h1:embPZDx0Sgpq6jp9vcZ1GVI0eum3PsPCmAfxAa/1KLI=
-git.defalsify.org/vise.git v0.1.0-rc.3.0.20240911162138-1f2af8672dc7/go.mod h1:JDguWmcoWBdsnpw7PUjVZAEpdC/ubBmjdUBy3tjP63M=
+git.defalsify.org/vise.git v0.2.1-0.20241017112704-307fa6fcdc6b h1:dxBplsIlzJHV+5EH+gzB+w08Blt7IJbb2jeRe1OEjLU=
+git.defalsify.org/vise.git v0.2.1-0.20241017112704-307fa6fcdc6b/go.mod h1:jyBMe1qTYUz3mmuoC9JQ/TvFeW0vTanCUcPu3H8p4Ck=
 github.com/alecthomas/assert/v2 v2.2.2 h1:Z/iVC0xZfWTaFNE6bA3z07T86hd45Xe2eLt6WVy2bbk=
 github.com/alecthomas/assert/v2 v2.2.2/go.mod h1:pXcQ2Asjp247dahGEmsZ6ru0UVwnkhktn7S0bBDLxvQ=
 github.com/alecthomas/participle/v2 v2.0.0 h1:Fgrq+MbuSsJwIkw3fEj9h75vDP0Er5JzepJ0/HNHv0g=
@@ -8,29 +8,67 @@ github.com/alecthomas/repr v0.2.0 h1:HAzS41CIzNW5syS8Mf9UwXhNH1J9aix/BvDRf1Ml2Yk
 github.com/alecthomas/repr v0.2.0/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
 github.com/barbashov/iso639-3 v0.0.0-20211020172741-1f4ffb2d8d1c h1:H9Nm+I7Cg/YVPpEV1RzU3Wq2pjamPc/UtHDgItcb7lE=
 github.com/barbashov/iso639-3 v0.0.0-20211020172741-1f4ffb2d8d1c/go.mod h1:rGod7o6KPeJ+hyBpHfhi4v7blx9sf+QsHsA7KAsdN6U=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fxamacker/cbor/v2 v2.4.0 h1:ri0ArlOR+5XunOP8CRUowT0pSJOwhW098ZCUyskZD88=
 github.com/fxamacker/cbor/v2 v2.4.0/go.mod h1:TA1xS00nchWmaBnEIxPSE5oHLuJBAVvqrtAnWBwBCVo=
+github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1YrTJupqA=
+github.com/gofrs/uuid v4.4.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
+github.com/grassrootseconomics/eth-custodial v1.3.0-beta h1:twrMBhl89GqDUL9PlkzQxMP/6OST1BByrNDj+rqXDmU=
+github.com/grassrootseconomics/eth-custodial v1.3.0-beta/go.mod h1:7uhRcdnJplX4t6GKCEFkbeDhhjlcaGJeJqevbcvGLZo=
+github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a h1:q/YH7nE2j8epNmFnTu0tU1vwtCxtQ6nH+d7hRVV5krU=
+github.com/grassrootseconomics/ussd-data-service v0.0.0-20241003123429-4904b4438a3a/go.mod h1:hdKaKwqiW6/kphK4j/BhmuRlZDLo1+DYo3gYw5O0siw=
 github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4 h1:U4kkNYryi/qfbBF8gh7Vsbuz+cVmhf5kt6pE9bYYyLo=
 github.com/graygnuorg/go-gdbm v0.0.0-20220711140707-71387d66dce4/go.mod h1:zpZDgZFzeq9s0MIeB1P50NIEWDFFHSFBohI/NbaTD/Y=
 github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
 github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=
+github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
+github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
+github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
+github.com/jackc/pgx/v5 v5.7.1 h1:x7SYsPBYDkHDksogeSmZZ5xzThcTgRz++I5E+ePFUcs=
+github.com/jackc/pgx/v5 v5.7.1/go.mod h1:e7O26IywZZ+naJtWWos6i6fvWK+29etgITqrqHLfoZA=
+github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
+github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
+github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
+github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
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 github.com/mattn/kinako v0.0.0-20170717041458-332c0a7e205a/go.mod h1:CdTTBOYzS5E4mWS1N8NWP6AHI19MP0A2B18n3hLzRMk=
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 github.com/peteole/testdata-loader v0.3.0/go.mod h1:Mt0ZbRtb56u8SLJpNP+BnQbENljMorYBpqlvt3cS83U=
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 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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 github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+golang.org/x/crypto v0.27.0 h1:GXm2NjJrPaiv/h1tb2UH8QfgC/hOf/+z0p6PT8o1w7A=
+golang.org/x/crypto v0.27.0/go.mod h1:1Xngt8kV6Dvbssa53Ziq6Eqn0HqbZi5Z6R0ZpwQzt70=
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+golang.org/x/text v0.18.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/leonelquinteros/gotext.v1 v1.3.1 h1:8d9/fdTG0kn/B7NNGV1BsEyvektXFAbkMsTZS2sFSCc=
 gopkg.in/leonelquinteros/gotext.v1 v1.3.1/go.mod h1:X1WlGDeAFIYsW6GjgMm4VwUwZ2XjI7Zan2InxSUQWrU=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

initializers/load.go

@@ -0,0 +1,34 @@
+package initializers
+
+import (
+	"log"
+	"os"
+	"strconv"
+
+	"github.com/joho/godotenv"
+)
+
+func LoadEnvVariables() {
+	err := godotenv.Load()
+	if err != nil {
+		log.Fatal("Error loading .env file")
+	}
+}
+
+// Helper to get environment variables with a default fallback
+func GetEnv(key, defaultVal string) string {
+  if value, exists := os.LookupEnv(key); exists {
+   	return value
+	}
+  return defaultVal
+}
+
+// Helper to safely convert environment variables to uint
+func GetEnvUint(key string, defaultVal uint) uint {
+	if value, exists := os.LookupEnv(key); exists {
+		if parsed, err := strconv.Atoi(value); err == nil && parsed >= 0 {
+			return uint(parsed)
+		}
+	}
+	return defaultVal
+}

internal/handlers/base.go

@@ -0,0 +1,105 @@
+package handlers
+
+import (
+	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/engine"
+	"git.defalsify.org/vise.git/persist"
+	"git.defalsify.org/vise.git/resource"
+
+	"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
+	"git.grassecon.net/urdt/ussd/internal/storage"
+)
+
+type BaseSessionHandler struct {
+	cfgTemplate engine.Config
+	rp RequestParser
+	rs resource.Resource
+	hn *ussd.Handlers
+	provider storage.StorageProvider
+}
+
+func NewBaseSessionHandler(cfg engine.Config, rs resource.Resource, stateDb db.Db, userdataDb db.Db, rp RequestParser, hn *ussd.Handlers) *BaseSessionHandler {
+	return &BaseSessionHandler{
+		cfgTemplate: cfg,
+		rs: rs,
+		hn: hn,
+		rp: rp,
+		provider: storage.NewSimpleStorageProvider(stateDb, userdataDb),
+	}
+}
+
+func(f* BaseSessionHandler) Shutdown() {
+	err := f.provider.Close()
+	if err != nil {
+		logg.Errorf("handler shutdown error", "err", err)
+	}
+}
+
+func(f *BaseSessionHandler) GetEngine(cfg engine.Config, rs resource.Resource, pr *persist.Persister) engine.Engine {
+	en := engine.NewEngine(cfg, rs)
+	en = en.WithPersister(pr)
+	return en
+}
+
+func(f *BaseSessionHandler) Process(rqs RequestSession) (RequestSession, error) {
+	var r bool
+	var err error
+	var ok bool
+	
+	logg.InfoCtxf(rqs.Ctx, "new request", "data", rqs)
+
+	rqs.Storage, err = f.provider.Get(rqs.Config.SessionId)
+	if err != nil {
+		logg.ErrorCtxf(rqs.Ctx, "", "storage get error", err)
+		return rqs, ErrStorage
+	}
+
+	f.hn = f.hn.WithPersister(rqs.Storage.Persister)
+	eni := f.GetEngine(rqs.Config, f.rs, rqs.Storage.Persister)
+	en, ok := eni.(*engine.DefaultEngine)
+	if !ok {
+		perr := f.provider.Put(rqs.Config.SessionId, rqs.Storage)
+		rqs.Storage = nil
+		if perr != nil {
+			logg.ErrorCtxf(rqs.Ctx, "", "storage put error", perr)
+		}
+		return rqs, ErrEngineType
+	}
+	en = en.WithFirst(f.hn.Init)
+	if rqs.Config.EngineDebug {
+		en = en.WithDebug(nil)
+	}
+	rqs.Engine = en
+
+	r, err = rqs.Engine.Exec(rqs.Ctx, rqs.Input)
+	if err != nil {
+		perr := f.provider.Put(rqs.Config.SessionId, rqs.Storage)
+		rqs.Storage = nil
+		if perr != nil {
+			logg.ErrorCtxf(rqs.Ctx, "", "storage put error", perr)
+		}
+		return rqs, err
+	}
+
+	rqs.Continue = r 
+	return rqs, nil
+}
+
+func(f *BaseSessionHandler) Output(rqs RequestSession) (RequestSession,  error) {
+	var err error
+	_, err = rqs.Engine.Flush(rqs.Ctx, rqs.Writer)
+	return rqs, err
+}
+
+func(f *BaseSessionHandler) Reset(rqs RequestSession) (RequestSession, error) {
+	defer f.provider.Put(rqs.Config.SessionId, rqs.Storage)
+	return rqs, rqs.Engine.Finish()
+}
+
+func(f *BaseSessionHandler) GetConfig() engine.Config {
+	return f.cfgTemplate
+}
+
+func(f *BaseSessionHandler) GetRequestParser() RequestParser {
+	return f.rp
+}

internal/handlers/handlerservice.go

@@ -0,0 +1,127 @@
+package handlers
+
+import (
+	"context"
+
+	"git.defalsify.org/vise.git/asm"
+	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/engine"
+	"git.defalsify.org/vise.git/persist"
+	"git.defalsify.org/vise.git/resource"
+
+	"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
+	"git.grassecon.net/urdt/ussd/internal/utils"
+	"git.grassecon.net/urdt/ussd/remote"
+)
+
+type HandlerService interface {
+	GetHandler() (*ussd.Handlers, error)
+}
+
+func getParser(fp string, debug bool) (*asm.FlagParser, error) {
+	flagParser := asm.NewFlagParser().WithDebug()
+	_, err := flagParser.Load(fp)
+	if err != nil {
+		return nil, err
+	}
+	return flagParser, nil
+}
+
+type LocalHandlerService struct {
+	Parser        *asm.FlagParser
+	DbRs          *resource.DbResource
+	Pe            *persist.Persister
+	UserdataStore *db.Db
+	AdminStore    *utils.AdminStore
+	Cfg           engine.Config
+	Rs            resource.Resource
+}
+
+func NewLocalHandlerService(ctx context.Context, fp string, debug bool, dbResource *resource.DbResource, cfg engine.Config, rs resource.Resource) (*LocalHandlerService, error) {
+	parser, err := getParser(fp, debug)
+	if err != nil {
+		return nil, err
+	}
+	adminstore, err := utils.NewAdminStore(ctx, "admin_numbers")
+	if err != nil {
+		return nil, err
+	}
+	return &LocalHandlerService{
+		Parser:     parser,
+		DbRs:       dbResource,
+		AdminStore: adminstore,
+		Cfg:        cfg,
+		Rs:         rs,
+	}, nil
+}
+
+func (ls *LocalHandlerService) SetPersister(Pe *persist.Persister) {
+	ls.Pe = Pe
+}
+
+func (ls *LocalHandlerService) SetDataStore(db *db.Db) {
+	ls.UserdataStore = db
+}
+
+func (ls *LocalHandlerService) GetHandler(accountService remote.AccountServiceInterface) (*ussd.Handlers, error) {
+	ussdHandlers, err := ussd.NewHandlers(ls.Parser, *ls.UserdataStore, ls.AdminStore, accountService)
+	if err != nil {
+		return nil, err
+	}
+	ussdHandlers = ussdHandlers.WithPersister(ls.Pe)
+	ls.DbRs.AddLocalFunc("set_language", ussdHandlers.SetLanguage)
+	ls.DbRs.AddLocalFunc("create_account", ussdHandlers.CreateAccount)
+	ls.DbRs.AddLocalFunc("save_temporary_pin", ussdHandlers.SaveTemporaryPin)
+	ls.DbRs.AddLocalFunc("verify_create_pin", ussdHandlers.VerifyCreatePin)
+	ls.DbRs.AddLocalFunc("check_identifier", ussdHandlers.CheckIdentifier)
+	ls.DbRs.AddLocalFunc("check_account_status", ussdHandlers.CheckAccountStatus)
+	ls.DbRs.AddLocalFunc("authorize_account", ussdHandlers.Authorize)
+	ls.DbRs.AddLocalFunc("quit", ussdHandlers.Quit)
+	ls.DbRs.AddLocalFunc("check_balance", ussdHandlers.CheckBalance)
+	ls.DbRs.AddLocalFunc("validate_recipient", ussdHandlers.ValidateRecipient)
+	ls.DbRs.AddLocalFunc("transaction_reset", ussdHandlers.TransactionReset)
+	ls.DbRs.AddLocalFunc("max_amount", ussdHandlers.MaxAmount)
+	ls.DbRs.AddLocalFunc("validate_amount", ussdHandlers.ValidateAmount)
+	ls.DbRs.AddLocalFunc("reset_transaction_amount", ussdHandlers.ResetTransactionAmount)
+	ls.DbRs.AddLocalFunc("get_recipient", ussdHandlers.GetRecipient)
+	ls.DbRs.AddLocalFunc("get_sender", ussdHandlers.GetSender)
+	ls.DbRs.AddLocalFunc("get_amount", ussdHandlers.GetAmount)
+	ls.DbRs.AddLocalFunc("reset_incorrect", ussdHandlers.ResetIncorrectPin)
+	ls.DbRs.AddLocalFunc("save_firstname", ussdHandlers.SaveFirstname)
+	ls.DbRs.AddLocalFunc("save_familyname", ussdHandlers.SaveFamilyname)
+	ls.DbRs.AddLocalFunc("save_gender", ussdHandlers.SaveGender)
+	ls.DbRs.AddLocalFunc("save_location", ussdHandlers.SaveLocation)
+	ls.DbRs.AddLocalFunc("save_yob", ussdHandlers.SaveYob)
+	ls.DbRs.AddLocalFunc("save_offerings", ussdHandlers.SaveOfferings)
+	ls.DbRs.AddLocalFunc("reset_account_authorized", ussdHandlers.ResetAccountAuthorized)
+	ls.DbRs.AddLocalFunc("reset_allow_update", ussdHandlers.ResetAllowUpdate)
+	ls.DbRs.AddLocalFunc("get_profile_info", ussdHandlers.GetProfileInfo)
+	ls.DbRs.AddLocalFunc("verify_yob", ussdHandlers.VerifyYob)
+	ls.DbRs.AddLocalFunc("reset_incorrect_date_format", ussdHandlers.ResetIncorrectYob)
+	ls.DbRs.AddLocalFunc("initiate_transaction", ussdHandlers.InitiateTransaction)
+	ls.DbRs.AddLocalFunc("verify_new_pin", ussdHandlers.VerifyNewPin)
+	ls.DbRs.AddLocalFunc("confirm_pin_change", ussdHandlers.ConfirmPinChange)
+	ls.DbRs.AddLocalFunc("quit_with_help", ussdHandlers.QuitWithHelp)
+	ls.DbRs.AddLocalFunc("fetch_custodial_balances", ussdHandlers.FetchCustodialBalances)
+	ls.DbRs.AddLocalFunc("set_default_voucher", ussdHandlers.SetDefaultVoucher)
+	ls.DbRs.AddLocalFunc("check_vouchers", ussdHandlers.CheckVouchers)
+	ls.DbRs.AddLocalFunc("get_vouchers", ussdHandlers.GetVoucherList)
+	ls.DbRs.AddLocalFunc("view_voucher", ussdHandlers.ViewVoucher)
+	ls.DbRs.AddLocalFunc("set_voucher", ussdHandlers.SetVoucher)
+	ls.DbRs.AddLocalFunc("reset_valid_pin", ussdHandlers.ResetValidPin)
+	ls.DbRs.AddLocalFunc("check_pin_mismatch", ussdHandlers.CheckPinMisMatch)
+	ls.DbRs.AddLocalFunc("validate_blocked_number", ussdHandlers.ValidateBlockedNumber)
+	ls.DbRs.AddLocalFunc("retrieve_blocked_number", ussdHandlers.RetrieveBlockedNumber)
+	ls.DbRs.AddLocalFunc("reset_unregistered_number", ussdHandlers.ResetUnregisteredNumber)
+	ls.DbRs.AddLocalFunc("reset_others_pin", ussdHandlers.ResetOthersPin)
+	ls.DbRs.AddLocalFunc("save_others_temporary_pin", ussdHandlers.SaveOthersTemporaryPin)
+
+	return ussdHandlers, nil
+}
+
+// TODO: enable setting of sessionId on engine init time
+func (ls *LocalHandlerService) GetEngine() *engine.DefaultEngine {
+	en := engine.NewEngine(ls.Cfg, ls.Rs)
+	en = en.WithPersister(ls.Pe)
+	return en
+}

internal/handlers/server/accountservice.go

@@ -1,112 +0,0 @@
-package server
-
-import (
-	"encoding/json"
-	"io"
-	"net/http"
-
-	"git.grassecon.net/urdt/ussd/config"
-	"git.grassecon.net/urdt/ussd/internal/models"
-)
-
-type AccountServiceInterface interface {
-	CheckBalance(publicKey string) (string, error)
-	CreateAccount() (*models.AccountResponse, error)
-	CheckAccountStatus(trackingId string) (string, error)
-}
-
-type AccountService struct {
-}
-
-
-
-// CheckAccountStatus retrieves the status of an account transaction based on the provided tracking ID.
-//
-// Parameters:
-//   - trackingId: A unique identifier for the account.This should be obtained from a previous call to
-//     CreateAccount or a similar function that returns an AccountResponse. The `trackingId` field in the
-//     AccountResponse struct can be used here to check the account status during a transaction.
-//
-//
-// Returns:
-//   - string: The status of the transaction as a string. If there is an error during the request or processing, this will be an empty string.
-//   - error: An error if any occurred during the HTTP request, reading the response, or unmarshalling the JSON data.
-//     If no error occurs, this will be nil.
-//
-func (as *AccountService) CheckAccountStatus(trackingId string) (string, error) {
-	resp, err := http.Get(config.TrackStatusURL + trackingId)
-	if err != nil {
-		return "", err
-	}
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return "", err
-	}
-
-	var trackResp models.TrackStatusResponse
-	err = json.Unmarshal(body, &trackResp)
-	if err != nil {
-		return "", err
-	}
-
-	status := trackResp.Result.Transaction.Status
-
-	return status, nil
-}
-
-
-// CheckBalance retrieves the balance for a given public key from the custodial balance API endpoint.
-// Parameters:
-//   - publicKey: The public key associated with the account whose balance needs to be checked.
-func (as *AccountService) CheckBalance(publicKey string) (string, error) {
-
-	resp, err := http.Get(config.BalanceURL + publicKey)
-	if err != nil {
-		return "0.0", err
-	}
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return "0.0", err
-	}
-
-	var balanceResp models.BalanceResponse
-	err = json.Unmarshal(body, &balanceResp)
-	if err != nil {
-		return "0.0", err
-	}
-
-	balance := balanceResp.Result.Balance
-	return balance, nil
-}
-
-
-//CreateAccount creates a new account in the custodial system.
-// Returns:
-//   - *models.AccountResponse: A pointer to an AccountResponse struct containing the details of the created account.
-//     If there is an error during the request or processing, this will be nil.
-//   - error: An error if any occurred during the HTTP request, reading the response, or unmarshalling the JSON data.
-//     If no error occurs, this will be nil.
-func (as *AccountService) CreateAccount() (*models.AccountResponse, error) {
-	resp, err := http.Post(config.CreateAccountURL, "application/json", nil)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
-
-	body, err := io.ReadAll(resp.Body)
-	if err != nil {
-		return nil, err
-	}
-
-	var accountResp models.AccountResponse
-	err = json.Unmarshal(body, &accountResp)
-	if err != nil {
-		return nil, err
-	}
-
-	return &accountResp, nil
-}

internal/handlers/single.go

@@ -0,0 +1,54 @@
+package handlers
+
+import (
+	"context"
+	"errors"
+	"io"
+
+	"git.defalsify.org/vise.git/engine"
+	"git.defalsify.org/vise.git/resource"
+	"git.defalsify.org/vise.git/persist"
+	"git.defalsify.org/vise.git/logging"
+
+	"git.grassecon.net/urdt/ussd/internal/storage"
+)
+
+var (
+	logg = logging.NewVanilla().WithDomain("handlers")
+)
+
+var (
+	ErrInvalidRequest = errors.New("invalid request for context")
+	ErrSessionMissing = errors.New("missing session")
+	ErrInvalidInput = errors.New("invalid input")
+	ErrStorage = errors.New("storage retrieval fail")
+	ErrEngineType = errors.New("incompatible engine")
+	ErrEngineInit = errors.New("engine init fail")
+	ErrEngineExec = errors.New("engine exec fail")
+)
+
+type RequestSession struct {
+	Ctx context.Context
+	Config engine.Config
+	Engine engine.Engine
+	Input []byte
+	Storage *storage.Storage
+	Writer io.Writer
+	Continue bool
+}
+
+// TODO: seems like can remove this.
+type RequestParser interface {
+	GetSessionId(rq any) (string, error)
+	GetInput(rq any) ([]byte, error)
+}
+
+type RequestHandler interface {
+	GetConfig() engine.Config
+	GetRequestParser() RequestParser
+	GetEngine(cfg engine.Config, rs resource.Resource, pe *persist.Persister) engine.Engine 
+	Process(rs RequestSession) (RequestSession, error)
+	Output(rs RequestSession) (RequestSession, error)
+	Reset(rs RequestSession) (RequestSession, error)
+	Shutdown()
+}

internal/handlers/ussd/mocks/dbmock.go

@@ -1,59 +0,0 @@
-package mocks
-
-import (
-	"context"
-
-	"git.defalsify.org/vise.git/lang"
-	"github.com/stretchr/testify/mock"
-)
-
-type MockDb struct {
-	mock.Mock
-}
-
-func (m *MockDb) SetPrefix(prefix uint8) {
-	m.Called(prefix)
-}
-
-func (m *MockDb) Prefix() uint8 {
-	args := m.Called()
-	return args.Get(0).(uint8)
-}
-
-func (m *MockDb) Safe() bool {
-	args := m.Called()
-	return args.Get(0).(bool)
-}
-
-func (m *MockDb) SetLanguage(language *lang.Language) {
-	m.Called(language)
-}
-
-func (m *MockDb) SetLock(uint8, bool) error {
-	args := m.Called()
-	return args.Error(0)
-}
-
-func (m *MockDb) Connect(ctx context.Context, connectionStr string) error {
-	args := m.Called(ctx, connectionStr)
-	return args.Error(0)
-}
-
-func (m *MockDb) SetSession(sessionId string) {
-	m.Called(sessionId)
-}
-
-func (m *MockDb) Put(ctx context.Context, key, value []byte) error {
-	args := m.Called(ctx, key, value)
-	return args.Error(0)
-}
-
-func (m *MockDb) Get(ctx context.Context, key []byte) ([]byte, error) {
-	args := m.Called(ctx, key)
-	return nil, args.Error(0)
-}
-
-func (m *MockDb) Close() error {
-	args := m.Called(nil)
-	return args.Error(0)
-}

internal/handlers/ussd/mocks/servicemock.go

@@ -1,26 +0,0 @@
-package mocks
-
-import (
-	"git.grassecon.net/urdt/ussd/internal/models"
-	"github.com/stretchr/testify/mock"
-)
-
-// MockAccountService implements AccountServiceInterface for testing
-type MockAccountService struct {
-	mock.Mock
-}
-
-func (m *MockAccountService) CreateAccount() (*models.AccountResponse, error) {
-	args := m.Called()
-	return args.Get(0).(*models.AccountResponse), args.Error(1)
-}
-
-func (m *MockAccountService) CheckBalance(publicKey string) (string, error) {
-	args := m.Called(publicKey)
-	return args.String(0), args.Error(1)
-}
-
-func (m *MockAccountService) CheckAccountStatus(trackingId string) (string, error) {
-	args := m.Called(trackingId)
-	return args.String(0), args.Error(1)
-}

internal/handlers/ussd/mocks/userdbmock.go

@@ -1,24 +0,0 @@
-package mocks
-
-import (
-	"context"
-
-	"git.defalsify.org/vise.git/db"
-	"git.grassecon.net/urdt/ussd/internal/utils"
-	"github.com/stretchr/testify/mock"
-)
-
-type MockUserDataStore struct {
-	db.Db
-	mock.Mock
-}
-
-func (m *MockUserDataStore) ReadEntry(ctx context.Context, sessionId string, typ utils.DataTyp) ([]byte, error) {
-	args := m.Called(ctx, sessionId, typ)
-	return args.Get(0).([]byte), args.Error(1)
-}
-
-func (m *MockUserDataStore) WriteEntry(ctx context.Context, sessionId string, typ utils.DataTyp, value []byte) error {
-	args := m.Called(ctx, sessionId, typ, value)
-	return args.Error(0)
-}

internal/http/at_session_handler.go

@@ -0,0 +1,92 @@
+package http
+
+import (
+	"io"
+	"net/http"
+
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+)
+
+type ATSessionHandler struct {
+	*SessionHandler
+}
+
+func NewATSessionHandler(h handlers.RequestHandler) *ATSessionHandler {
+	return &ATSessionHandler{
+		SessionHandler: ToSessionHandler(h),
+	}
+}
+
+func (ash *ATSessionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	var code int
+	var err error
+
+	rqs := handlers.RequestSession{
+		Ctx:    req.Context(),
+		Writer: w,
+	}
+
+	rp := ash.GetRequestParser()
+	cfg := ash.GetConfig()
+	cfg.SessionId, err = rp.GetSessionId(req)
+	if err != nil {
+		logg.ErrorCtxf(rqs.Ctx, "", "header processing error", err)
+		ash.writeError(w, 400, err)
+		return
+	}
+	rqs.Config = cfg
+	rqs.Input, err = rp.GetInput(req)
+	if err != nil {
+		logg.ErrorCtxf(rqs.Ctx, "", "header processing error", err)
+		ash.writeError(w, 400, err)
+		return
+	}
+
+	rqs, err = ash.Process(rqs) 
+	switch err {
+	case nil: // set code to 200 if no err
+		code = 200
+	case handlers.ErrStorage, handlers.ErrEngineInit, handlers.ErrEngineExec, handlers.ErrEngineType:
+		code = 500
+	default:
+		code = 500
+	}
+
+	if code != 200 {
+		ash.writeError(w, 500, err)
+		return
+	}
+
+	w.WriteHeader(200)
+	w.Header().Set("Content-Type", "text/plain")
+	rqs, err = ash.Output(rqs)
+	if err != nil {
+		ash.writeError(w, 500, err)
+		return
+	}
+
+	rqs, err = ash.Reset(rqs)
+	if err != nil {
+		ash.writeError(w, 500, err)
+		return
+	}
+}
+
+func (ash *ATSessionHandler) Output(rqs handlers.RequestSession) (handlers.RequestSession, error) {
+	var err error
+	var prefix string
+
+	if rqs.Continue {
+		prefix = "CON "
+	} else {
+		prefix = "END "
+	}
+
+	_, err = io.WriteString(rqs.Writer, prefix)
+	if err != nil {
+		return rqs, err
+	}
+
+	_, err = rqs.Engine.Flush(rqs.Ctx, rqs.Writer)
+	return rqs, err
+}

internal/http/http_test.go

@@ -0,0 +1,449 @@
+package http
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"net/url"
+	"strings"
+	"testing"
+
+	"git.defalsify.org/vise.git/engine"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/testutil/mocks/httpmocks"
+)
+
+// invalidRequestType is a custom type to test invalid request scenarios
+type invalidRequestType struct{}
+
+// errorReader is a helper type that always returns an error when Read is called
+type errorReader struct{}
+
+func (e *errorReader) Read(p []byte) (n int, err error) {
+	return 0, errors.New("read error")
+}
+
+func TestNewATSessionHandler(t *testing.T) {
+	mockHandler := &httpmocks.MockRequestHandler{}
+	ash := NewATSessionHandler(mockHandler)
+
+	if ash == nil {
+		t.Fatal("NewATSessionHandler returned nil")
+	}
+
+	if ash.SessionHandler == nil {
+		t.Fatal("SessionHandler is nil")
+	}
+}
+
+func TestATSessionHandler_ServeHTTP(t *testing.T) {
+	tests := []struct {
+		name           string
+		setupMocks     func(*httpmocks.MockRequestHandler, *httpmocks.MockRequestParser, *httpmocks.MockEngine)
+		formData       url.Values
+		expectedStatus int
+		expectedBody   string
+	}{
+		{
+			name: "Successful request",
+			setupMocks: func(mh *httpmocks.MockRequestHandler, mrp *httpmocks.MockRequestParser, me *httpmocks.MockEngine) {
+				mrp.GetSessionIdFunc = func(rq any) (string, error) {
+					req := rq.(*http.Request)
+					return req.FormValue("phoneNumber"), nil
+				}
+				mrp.GetInputFunc = func(rq any) ([]byte, error) {
+					req := rq.(*http.Request)
+					text := req.FormValue("text")
+					parts := strings.Split(text, "*")
+					return []byte(parts[len(parts)-1]), nil
+				}
+				mh.ProcessFunc = func(rqs handlers.RequestSession) (handlers.RequestSession, error) {
+					rqs.Continue = true
+					rqs.Engine = me
+					return rqs, nil
+				}
+				mh.GetConfigFunc = func() engine.Config { return engine.Config{} }
+				mh.GetRequestParserFunc = func() handlers.RequestParser { return mrp }
+				mh.OutputFunc = func(rs handlers.RequestSession) (handlers.RequestSession, error) { return rs, nil }
+				mh.ResetFunc = func(rs handlers.RequestSession) (handlers.RequestSession, error) { return rs, nil }
+				me.FlushFunc = func(context.Context, io.Writer) (int, error) { return 0, nil }
+			},
+			formData: url.Values{
+				"phoneNumber": []string{"+1234567890"},
+				"text":        []string{"1*2*3"},
+			},
+			expectedStatus: http.StatusOK,
+			expectedBody:   "CON ",
+		},
+		{
+			name: "GetSessionId error",
+			setupMocks: func(mh *httpmocks.MockRequestHandler, mrp *httpmocks.MockRequestParser, me *httpmocks.MockEngine) {
+				mrp.GetSessionIdFunc = func(rq any) (string, error) {
+					return "", errors.New("no phone number found")
+				}
+				mh.GetConfigFunc = func() engine.Config { return engine.Config{} }
+				mh.GetRequestParserFunc = func() handlers.RequestParser { return mrp }
+			},
+			formData: url.Values{
+				"text": []string{"1*2*3"},
+			},
+			expectedStatus: http.StatusBadRequest,
+			expectedBody:   "",
+		},
+		{
+			name: "GetInput error",
+			setupMocks: func(mh *httpmocks.MockRequestHandler, mrp *httpmocks.MockRequestParser, me *httpmocks.MockEngine) {
+				mrp.GetSessionIdFunc = func(rq any) (string, error) {
+					req := rq.(*http.Request)
+					return req.FormValue("phoneNumber"), nil
+				}
+				mrp.GetInputFunc = func(rq any) ([]byte, error) {
+					return nil, errors.New("no input found")
+				}
+				mh.GetConfigFunc = func() engine.Config { return engine.Config{} }
+				mh.GetRequestParserFunc = func() handlers.RequestParser { return mrp }
+			},
+			formData: url.Values{
+				"phoneNumber": []string{"+1234567890"},
+			},
+			expectedStatus: http.StatusBadRequest,
+			expectedBody:   "",
+		},
+		{
+			name: "Process error",
+			setupMocks: func(mh *httpmocks.MockRequestHandler, mrp *httpmocks.MockRequestParser, me *httpmocks.MockEngine) {
+				mrp.GetSessionIdFunc = func(rq any) (string, error) {
+					req := rq.(*http.Request)
+					return req.FormValue("phoneNumber"), nil
+				}
+				mrp.GetInputFunc = func(rq any) ([]byte, error) {
+					req := rq.(*http.Request)
+					text := req.FormValue("text")
+					parts := strings.Split(text, "*")
+					return []byte(parts[len(parts)-1]), nil
+				}
+				mh.ProcessFunc = func(rqs handlers.RequestSession) (handlers.RequestSession, error) {
+					return rqs, handlers.ErrStorage
+				}
+				mh.GetConfigFunc = func() engine.Config { return engine.Config{} }
+				mh.GetRequestParserFunc = func() handlers.RequestParser { return mrp }
+			},
+			formData: url.Values{
+				"phoneNumber": []string{"+1234567890"},
+				"text":        []string{"1*2*3"},
+			},
+			expectedStatus: http.StatusInternalServerError,
+			expectedBody:   "",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockHandler := &httpmocks.MockRequestHandler{}
+			mockRequestParser := &httpmocks.MockRequestParser{}
+			mockEngine := &httpmocks.MockEngine{}
+			tt.setupMocks(mockHandler, mockRequestParser, mockEngine)
+
+			ash := NewATSessionHandler(mockHandler)
+
+			req := httptest.NewRequest(http.MethodPost, "/", strings.NewReader(tt.formData.Encode()))
+			req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+			w := httptest.NewRecorder()
+
+			ash.ServeHTTP(w, req)
+
+			if w.Code != tt.expectedStatus {
+				t.Errorf("Expected status %d, got %d", tt.expectedStatus, w.Code)
+			}
+
+			if tt.expectedBody != "" && w.Body.String() != tt.expectedBody {
+				t.Errorf("Expected body %q, got %q", tt.expectedBody, w.Body.String())
+			}
+		})
+	}
+}
+
+func TestATSessionHandler_Output(t *testing.T) {
+	tests := []struct {
+		name           string
+		input          handlers.RequestSession
+		expectedPrefix string
+		expectedError  bool
+	}{
+		{
+			name: "Continue true",
+			input: handlers.RequestSession{
+				Continue: true,
+				Engine: &httpmocks.MockEngine{
+					FlushFunc: func(context.Context, io.Writer) (int, error) {
+						return 0, nil
+					},
+				},
+				Writer: &httpmocks.MockWriter{},
+			},
+			expectedPrefix: "CON ",
+			expectedError:  false,
+		},
+		{
+			name: "Continue false",
+			input: handlers.RequestSession{
+				Continue: false,
+				Engine: &httpmocks.MockEngine{
+					FlushFunc: func(context.Context, io.Writer) (int, error) {
+						return 0, nil
+					},
+				},
+				Writer: &httpmocks.MockWriter{},
+			},
+			expectedPrefix: "END ",
+			expectedError:  false,
+		},
+		{
+			name: "Flush error",
+			input: handlers.RequestSession{
+				Continue: true,
+				Engine: &httpmocks.MockEngine{
+					FlushFunc: func(context.Context, io.Writer) (int, error) {
+						return 0, errors.New("write error")
+					},
+				},
+				Writer: &httpmocks.MockWriter{},
+			},
+			expectedPrefix: "CON ",
+			expectedError:  true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ash := &ATSessionHandler{}
+			_, err := ash.Output(tt.input)
+
+			if tt.expectedError && err == nil {
+				t.Error("Expected an error, but got nil")
+			}
+
+			if !tt.expectedError && err != nil {
+				t.Errorf("Unexpected error: %v", err)
+			}
+
+			mw := tt.input.Writer.(*httpmocks.MockWriter)
+			if !mw.WriteStringCalled {
+				t.Error("WriteString was not called")
+			}
+
+			if mw.WrittenString != tt.expectedPrefix {
+				t.Errorf("Expected prefix %q, got %q", tt.expectedPrefix, mw.WrittenString)
+			}
+		})
+	}
+}
+
+func TestSessionHandler_ServeHTTP(t *testing.T) {
+	tests := []struct {
+		name           string
+		sessionID      string
+		input          []byte
+		parserErr      error
+		processErr     error
+		outputErr      error
+		resetErr       error
+		expectedStatus int
+	}{
+		{
+			name:           "Success",
+			sessionID:      "123",
+			input:          []byte("test input"),
+			expectedStatus: http.StatusOK,
+		},
+		{
+			name:           "Missing Session ID",
+			sessionID:      "",
+			parserErr:      handlers.ErrSessionMissing,
+			expectedStatus: http.StatusBadRequest,
+		},
+		{
+			name:           "Process Error",
+			sessionID:      "123",
+			input:          []byte("test input"),
+			processErr:     handlers.ErrStorage,
+			expectedStatus: http.StatusInternalServerError,
+		},
+		{
+			name:           "Output Error",
+			sessionID:      "123",
+			input:          []byte("test input"),
+			outputErr:      errors.New("output error"),
+			expectedStatus: http.StatusOK,
+		},
+		{
+			name:           "Reset Error",
+			sessionID:      "123",
+			input:          []byte("test input"),
+			resetErr:       errors.New("reset error"),
+			expectedStatus: http.StatusOK,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockRequestParser := &httpmocks.MockRequestParser{
+				GetSessionIdFunc: func(any) (string, error) {
+					return tt.sessionID, tt.parserErr
+				},
+				GetInputFunc: func(any) ([]byte, error) {
+					return tt.input, nil
+				},
+			}
+
+			mockRequestHandler := &httpmocks.MockRequestHandler{
+				ProcessFunc: func(rs handlers.RequestSession) (handlers.RequestSession, error) {
+					return rs, tt.processErr
+				},
+				OutputFunc: func(rs handlers.RequestSession) (handlers.RequestSession, error) {
+					return rs, tt.outputErr
+				},
+				ResetFunc: func(rs handlers.RequestSession) (handlers.RequestSession, error) {
+					return rs, tt.resetErr
+				},
+				GetRequestParserFunc: func() handlers.RequestParser {
+					return mockRequestParser
+				},
+				GetConfigFunc: func() engine.Config {
+					return engine.Config{}
+				},
+			}
+
+			sessionHandler := ToSessionHandler(mockRequestHandler)
+
+			req := httptest.NewRequest(http.MethodPost, "/", bytes.NewBuffer(tt.input))
+			req.Header.Set("X-Vise-Session", tt.sessionID)
+
+			rr := httptest.NewRecorder()
+
+			sessionHandler.ServeHTTP(rr, req)
+
+			if status := rr.Code; status != tt.expectedStatus {
+				t.Errorf("handler returned wrong status code: got %v want %v",
+					status, tt.expectedStatus)
+			}
+		})
+	}
+}
+
+func TestSessionHandler_writeError(t *testing.T) {
+	handler := &SessionHandler{}
+	mockWriter := &httpmocks.MockWriter{}
+	err := errors.New("test error")
+
+	handler.writeError(mockWriter, http.StatusBadRequest, err)
+
+	if mockWriter.WrittenString != "" {
+		t.Errorf("Expected empty body, got %s", mockWriter.WrittenString)
+	}
+}
+
+func TestDefaultRequestParser_GetSessionId(t *testing.T) {
+	tests := []struct {
+		name          string
+		request       any
+		expectedID    string
+		expectedError error
+	}{
+		{
+			name: "Valid Session ID",
+			request: func() *http.Request {
+				req := httptest.NewRequest(http.MethodPost, "/", nil)
+				req.Header.Set("X-Vise-Session", "123456")
+				return req
+			}(),
+			expectedID:    "123456",
+			expectedError: nil,
+		},
+		{
+			name:          "Missing Session ID",
+			request:       httptest.NewRequest(http.MethodPost, "/", nil),
+			expectedID:    "",
+			expectedError: handlers.ErrSessionMissing,
+		},
+		{
+			name:          "Invalid Request Type",
+			request:       invalidRequestType{},
+			expectedID:    "",
+			expectedError: handlers.ErrInvalidRequest,
+		},
+	}
+
+	parser := &DefaultRequestParser{}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			id, err := parser.GetSessionId(tt.request)
+
+			if id != tt.expectedID {
+				t.Errorf("Expected session ID %s, got %s", tt.expectedID, id)
+			}
+
+			if err != tt.expectedError {
+				t.Errorf("Expected error %v, got %v", tt.expectedError, err)
+			}
+		})
+	}
+}
+
+func TestDefaultRequestParser_GetInput(t *testing.T) {
+	tests := []struct {
+		name          string
+		request       any
+		expectedInput []byte
+		expectedError error
+	}{
+		{
+			name: "Valid Input",
+			request: func() *http.Request {
+				return httptest.NewRequest(http.MethodPost, "/", bytes.NewBufferString("test input"))
+			}(),
+			expectedInput: []byte("test input"),
+			expectedError: nil,
+		},
+		{
+			name:          "Empty Input",
+			request:       httptest.NewRequest(http.MethodPost, "/", nil),
+			expectedInput: []byte{},
+			expectedError: nil,
+		},
+		{
+			name:          "Invalid Request Type",
+			request:       invalidRequestType{},
+			expectedInput: nil,
+			expectedError: handlers.ErrInvalidRequest,
+		},
+		{
+			name: "Read Error",
+			request: func() *http.Request {
+				return httptest.NewRequest(http.MethodPost, "/", &errorReader{})
+			}(),
+			expectedInput: nil,
+			expectedError: errors.New("read error"),
+		},
+	}
+
+	parser := &DefaultRequestParser{}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			input, err := parser.GetInput(tt.request)
+
+			if !bytes.Equal(input, tt.expectedInput) {
+				t.Errorf("Expected input %s, got %s", tt.expectedInput, input)
+			}
+
+			if err != tt.expectedError && (err == nil || err.Error() != tt.expectedError.Error()) {
+				t.Errorf("Expected error %v, got %v", tt.expectedError, err)
+			}
+		})
+	}
+}

internal/http/server.go

@@ -1,42 +1,42 @@
 package http
 
 import (
-	"fmt"
 	"io/ioutil"
 	"net/http"
+	"strconv"
 
-	"git.defalsify.org/vise.git/db"
-	"git.defalsify.org/vise.git/engine"
 	"git.defalsify.org/vise.git/logging"
-	"git.defalsify.org/vise.git/persist"
-	"git.defalsify.org/vise.git/resource"
 
-	"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
 )
 
 var (
 	logg = logging.NewVanilla().WithDomain("httpserver")
 )
 
-type RequestParser interface {
-	GetSessionId(rq *http.Request) (string, error)
-	GetInput(rq *http.Request) ([]byte, error)
-}
-
 type DefaultRequestParser struct {
 }
 
-func(rp *DefaultRequestParser) GetSessionId(rq *http.Request) (string, error) {
-	v := rq.Header.Get("X-Vise-Session")
+
+func(rp *DefaultRequestParser) GetSessionId(rq any) (string, error) {
+	rqv, ok := rq.(*http.Request)
+	if !ok {
+		return "", handlers.ErrInvalidRequest
+	}
+	v := rqv.Header.Get("X-Vise-Session")
 	if v == "" {
-		return "", fmt.Errorf("no session found")
+		return "", handlers.ErrSessionMissing
 	}
 	return v, nil
 }
 
-func(rp *DefaultRequestParser) GetInput(rq *http.Request) ([]byte, error) {
-	defer rq.Body.Close()
-	v, err := ioutil.ReadAll(rq.Body)
+func(rp *DefaultRequestParser) GetInput(rq any) ([]byte, error) {
+	rqv, ok := rq.(*http.Request)
+	if !ok {
+		return nil, handlers.ErrInvalidRequest
+	}
+	defer rqv.Body.Close()
+	v, err := ioutil.ReadAll(rqv.Body)
 	if err != nil {
 		return nil, err
 	}
@@ -44,107 +44,79 @@ func(rp *DefaultRequestParser) GetInput(rq *http.Request) ([]byte, error) {
 }
 
 type SessionHandler struct {
-	cfgTemplate engine.Config
-	rp RequestParser
-	rs resource.Resource
-	//first resource.EntryFunc
-	hn *ussd.Handlers
-	provider StorageProvider
+	handlers.RequestHandler
 }
 
-//func NewSessionHandler(cfg engine.Config, rs resource.Resource, stateDb db.Db, userdataDb db.Db, rp RequestParser, first resource.EntryFunc) *SessionHandler {
-func NewSessionHandler(cfg engine.Config, rs resource.Resource, stateDb db.Db, userdataDb db.Db, rp RequestParser, hn *ussd.Handlers) *SessionHandler {
+func ToSessionHandler(h handlers.RequestHandler) *SessionHandler {
 	return &SessionHandler{
-		cfgTemplate: cfg,
-		rs: rs,
-		//first: first,
-		hn: hn,
-		rp: rp,
-		provider: NewSimpleStorageProvider(stateDb, userdataDb),
+		RequestHandler: h,
 	}
 }
 
-func(f *SessionHandler) writeError(w http.ResponseWriter, code int, msg string, err error) {
-	w.Header().Set("X-Vise", msg + ": " + err.Error())
-	w.Header().Set("Content-Length", "0")
+func(f *SessionHandler) writeError(w http.ResponseWriter, code int, err error) {
+	s := err.Error()
+	w.Header().Set("Content-Length", strconv.Itoa(len(s)))
 	w.WriteHeader(code)
 	_, err = w.Write([]byte{})
 	if err != nil {
+		logg.Errorf("error writing error!!", "err", err, "olderr", s)
 		w.WriteHeader(500)
-		w.Header().Set("X-Vise", err.Error())
 	}
 	return 
 }
 
-func(f* SessionHandler) Shutdown() {
-	err := f.provider.Close()
-	if err != nil {
-		logg.Errorf("handler shutdown error", "err", err)
-	}
-}
-
 func(f *SessionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
-	var r bool
-	sessionId, err := f.rp.GetSessionId(req)
-	if err != nil {
-		f.writeError(w, 400, "Session missing", err)
-		return
-	}
-	input, err := f.rp.GetInput(req)
-	if err != nil {
-		f.writeError(w, 400, "Input read fail", err)
-		return
-	}
-	ctx := req.Context()
-	cfg := f.cfgTemplate
-	cfg.SessionId = sessionId
+	var code int
+	var err error
+	var perr error
 
-	logg.InfoCtxf(ctx, "new request",  "session", cfg.SessionId, "input", input)
-
-	storage, err := f.provider.Get(cfg.SessionId)
-	if err != nil {
-		f.writeError(w, 500, "Storage retrieval fail", err)
-		return
-	}
-	f.hn = f.hn.WithPersister(storage.Persister)
-	defer f.provider.Put(cfg.SessionId, storage)
-	en := getEngine(cfg, f.rs, storage.Persister)
-	en = en.WithFirst(f.hn.Init)
-	if cfg.EngineDebug {
-		en = en.WithDebug(nil)
+	rqs := handlers.RequestSession{
+		Ctx: req.Context(),
+		Writer: w,
 	}
 
-	r, err = en.Init(ctx)
+	rp := f.GetRequestParser()
+	cfg := f.GetConfig()
+	cfg.SessionId, err = rp.GetSessionId(req)
 	if err != nil {
-		f.writeError(w, 500, "Engine init fail", err)
+		logg.ErrorCtxf(rqs.Ctx, "", "header processing error", err)
+		f.writeError(w, 400, err)
+	}
+	rqs.Config = cfg
+	rqs.Input, err = rp.GetInput(req)
+	if err != nil {
+		logg.ErrorCtxf(rqs.Ctx, "", "header processing error", err)
+		f.writeError(w, 400, err)
 		return
 	}
-	if r && len(input) > 0 {
-		r, err = en.Exec(ctx, input)
+
+	rqs, err = f.Process(rqs)
+	switch err {
+	case handlers.ErrStorage:
+		code = 500
+	case handlers.ErrEngineInit:
+		code = 500
+	case handlers.ErrEngineExec:
+		code = 500
+	default:
+		code = 200
 	}
-	if err != nil {
-		f.writeError(w, 500, "Engine exec fail", err)
+
+	if code != 200 {
+		f.writeError(w, 500, err)
 		return
 	}
 
 	w.WriteHeader(200)
 	w.Header().Set("Content-Type", "text/plain")
-	_, err = en.WriteResult(ctx, w)
+	rqs, err = f.Output(rqs)
+	rqs, perr = f.Reset(rqs)
 	if err != nil {
-		f.writeError(w, 500, "Write result fail", err)
+		f.writeError(w, 500, err)
 		return
 	}
-	err = en.Finish()
-	if err != nil {
-		f.writeError(w, 500, "Engine finish fail", err)
+	if perr != nil {
+		f.writeError(w, 500, perr)
 		return
 	}
-
-	_ = r
-}
-
-func getEngine(cfg engine.Config, rs resource.Resource, pr *persist.Persister) *engine.DefaultEngine {
-	en := engine.NewEngine(cfg, rs)
-	en = en.WithPersister(pr)
-	return en
 }

internal/models/accountresponse.go

@@ -1,15 +0,0 @@
-package models
-
-import (
-	"encoding/json"
-
-)
-
-type AccountResponse struct {
-	Ok     bool `json:"ok"`
-	Result struct {
-		CustodialId json.Number `json:"custodialId"`
-		PublicKey   string      `json:"publicKey"`
-		TrackingId  string      `json:"trackingId"`
-	} `json:"result"`
-}

internal/models/balanceresponse.go

@@ -1,12 +0,0 @@
-package models
-
-import "encoding/json"
-
-
-type BalanceResponse struct {
-	Ok     bool `json:"ok"`
-	Result struct {
-		Balance string      `json:"balance"`
-		Nonce   json.Number `json:"nonce"`
-	} `json:"result"`
-}

internal/models/trackstatusresponse.go

@@ -1,20 +0,0 @@
-package models
-
-import (
-	"encoding/json"
-	"time"
-)
-
-
-type TrackStatusResponse struct {
-	Ok     bool `json:"ok"`
-	Result struct {
-		Transaction struct {
-			CreatedAt     time.Time   `json:"createdAt"`
-			Status        string      `json:"status"`
-			TransferValue json.Number `json:"transferValue"`
-			TxHash        string      `json:"txHash"`
-			TxType        string      `json:"txType"`
-		}
-	} `json:"result"`
-}

internal/storage/db.go

@@ -0,0 +1,47 @@
+package storage
+
+import (
+	"context"
+
+	"git.defalsify.org/vise.git/db"
+)
+
+const (
+	DATATYPE_USERSUB = 64
+)
+
+// PrefixDb interface abstracts the database operations.
+type PrefixDb interface {
+	Get(ctx context.Context, key []byte) ([]byte, error)
+	Put(ctx context.Context, key []byte, val []byte) error
+}
+
+var _ PrefixDb = (*SubPrefixDb)(nil)
+
+type SubPrefixDb struct {
+	store db.Db
+	pfx   []byte
+}
+
+func NewSubPrefixDb(store db.Db, pfx []byte) *SubPrefixDb {
+	return &SubPrefixDb{
+		store: store,
+		pfx:   pfx,
+	}
+}
+
+func (s *SubPrefixDb) toKey(k []byte) []byte {
+	return append(s.pfx, k...)
+}
+
+func (s *SubPrefixDb) Get(ctx context.Context, key []byte) ([]byte, error) {
+	s.store.SetPrefix(DATATYPE_USERSUB)
+	key = s.toKey(key)
+	return s.store.Get(ctx, key)
+}
+
+func (s *SubPrefixDb) Put(ctx context.Context, key []byte, val []byte) error {
+	s.store.SetPrefix(DATATYPE_USERSUB)
+	key = s.toKey(key)
+	return s.store.Put(ctx, key, val)
+}

internal/storage/db_test.go

@@ -0,0 +1,54 @@
+package storage
+
+import (
+	"bytes"
+	"context"
+	"testing"
+
+	memdb "git.defalsify.org/vise.git/db/mem"
+)
+
+func TestSubPrefix(t *testing.T) {
+	ctx := context.Background()
+	db := memdb.NewMemDb()
+	err := db.Connect(ctx, "")
+	if err != nil {
+		t.Fatal(err)
+	}
+	sdba := NewSubPrefixDb(db, []byte("tinkywinky"))
+	err = sdba.Put(ctx, []byte("foo"), []byte("dipsy"))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	r, err := sdba.Get(ctx, []byte("foo"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !bytes.Equal(r, []byte("dipsy")) {
+		t.Fatalf("expected 'dipsy', got %s", r)
+	}
+
+	sdbb := NewSubPrefixDb(db, []byte("lala"))
+	r, err = sdbb.Get(ctx, []byte("foo"))
+	if err == nil {
+		t.Fatal("expected not found")
+	}
+
+	err = sdbb.Put(ctx, []byte("foo"), []byte("pu"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	r, err = sdbb.Get(ctx, []byte("foo"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !bytes.Equal(r, []byte("pu")) {
+		t.Fatalf("expected 'pu', got %s", r)
+	}
+
+	r, err = sdba.Get(ctx, []byte("foo"))
+	if !bytes.Equal(r, []byte("dipsy")) {
+		t.Fatalf("expected 'dipsy', got %s", r)
+	}
+}

internal/storage/gdbm.go

@@ -0,0 +1,116 @@
+package storage
+
+import (
+	"context"
+
+	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/lang"
+	gdbmdb "git.defalsify.org/vise.git/db/gdbm"
+)
+
+var (
+	dbC map[string]chan db.Db
+)
+
+type ThreadGdbmDb struct {
+	db db.Db
+	connStr string
+}
+
+func NewThreadGdbmDb() *ThreadGdbmDb {
+	if dbC == nil {
+		dbC = make(map[string]chan db.Db)
+	}
+	return &ThreadGdbmDb{}
+}
+
+func(tdb *ThreadGdbmDb) Connect(ctx context.Context, connStr string) error {
+	var ok bool
+	_, ok = dbC[connStr]
+	if ok {
+		logg.WarnCtxf(ctx, "already registered thread gdbm, skipping", "connStr", connStr)
+		return nil
+	}
+	gdb := gdbmdb.NewGdbmDb()
+	err := gdb.Connect(ctx, connStr)
+	if err != nil {
+		return err
+	}
+	dbC[connStr] = make(chan db.Db, 1)
+	dbC[connStr]<- gdb
+	tdb.connStr = connStr
+	return nil
+}
+
+func(tdb *ThreadGdbmDb) reserve() {
+	if tdb.db == nil {
+		tdb.db = <-dbC[tdb.connStr]
+	}
+}
+
+func(tdb *ThreadGdbmDb) release() {
+	if tdb.db == nil {
+		return
+	}
+	dbC[tdb.connStr] <- tdb.db
+	tdb.db = nil
+}
+
+func(tdb *ThreadGdbmDb) SetPrefix(pfx uint8) {
+	tdb.reserve()
+	tdb.db.SetPrefix(pfx)
+}
+
+func(tdb *ThreadGdbmDb) SetSession(sessionId string) {
+	tdb.reserve()
+	tdb.db.SetSession(sessionId)
+}
+
+func(tdb *ThreadGdbmDb) SetLanguage(lng *lang.Language) {
+	tdb.reserve()
+	tdb.db.SetLanguage(lng)
+}
+
+func(tdb *ThreadGdbmDb) Safe() bool {
+	tdb.reserve()
+	v := tdb.db.Safe()
+	tdb.release()
+	return v
+}
+
+func(tdb *ThreadGdbmDb) Prefix() uint8 {
+	tdb.reserve()
+	v := tdb.db.Prefix()
+	tdb.release()
+	return v
+}
+
+func(tdb *ThreadGdbmDb) SetLock(typ uint8, locked bool) error {
+	tdb.reserve()
+	err := tdb.db.SetLock(typ, locked)
+	tdb.release()
+	return err
+}
+
+func(tdb *ThreadGdbmDb) Put(ctx context.Context, key []byte, val []byte) error {
+	tdb.reserve()
+	err := tdb.db.Put(ctx, key, val)
+	tdb.release()
+	return err
+}
+
+func(tdb *ThreadGdbmDb) Get(ctx context.Context, key []byte) ([]byte, error) {
+	tdb.reserve()
+	v, err := tdb.db.Get(ctx, key)
+	tdb.release()
+	return v, err
+}
+
+func(tdb *ThreadGdbmDb) Close() error {
+	tdb.reserve()
+	close(dbC[tdb.connStr])
+	delete(dbC, tdb.connStr)
+	err := tdb.db.Close()
+	tdb.db = nil
+	return err
+}

internal/storage/storage.go

@@ -1,4 +1,4 @@
-package http
+package storage
 
 import (
 	"git.defalsify.org/vise.git/db"
@@ -11,31 +11,31 @@ type Storage struct {
 }
 
 type StorageProvider interface {
-	Get(sessionId string) (Storage, error)
-	Put(sessionId string, storage Storage) error
+	Get(sessionId string) (*Storage, error)
+	Put(sessionId string, storage *Storage) error
 	Close() error
 }
 
 type SimpleStorageProvider struct {
-	Storage
+	*Storage
 }
 
 func NewSimpleStorageProvider(stateStore db.Db, userdataStore db.Db) StorageProvider {
 	pe := persist.NewPersister(stateStore)
 	pe = pe.WithFlush()
 	return &SimpleStorageProvider{
-		Storage: Storage{
+		Storage: &Storage{
 			Persister: pe,
 			UserdataDb: userdataStore,
 		},
 	}
 }
 
-func (p *SimpleStorageProvider) Get(sessionId string) (Storage, error) {
+func (p *SimpleStorageProvider) Get(sessionId string) (*Storage, error) {
 	return p.Storage, nil
 }
 
-func (p *SimpleStorageProvider) Put(sessionId string, storage Storage) error {
+func (p *SimpleStorageProvider) Put(sessionId string, storage *Storage) error {
 	return nil
 }
 

internal/storage/storageservice.go

@@ -0,0 +1,152 @@
+package storage
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path"
+
+	"git.defalsify.org/vise.git/db"
+	fsdb "git.defalsify.org/vise.git/db/fs"
+	"git.defalsify.org/vise.git/db/postgres"
+	"git.defalsify.org/vise.git/logging"
+	"git.defalsify.org/vise.git/persist"
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/urdt/ussd/initializers"
+)
+
+var (
+	logg = logging.NewVanilla().WithDomain("storage")
+)
+
+type StorageService interface {
+	GetPersister(ctx context.Context) (*persist.Persister, error)
+	GetUserdataDb(ctx context.Context) db.Db
+	GetResource(ctx context.Context) (resource.Resource, error)
+	EnsureDbDir() error
+}
+
+type MenuStorageService struct {
+	dbDir         string
+	resourceDir   string
+	resourceStore db.Db
+	stateStore    db.Db
+	userDataStore db.Db
+}
+
+func buildConnStr() string {
+	host := initializers.GetEnv("DB_HOST", "localhost")
+	user := initializers.GetEnv("DB_USER", "postgres")
+	password := initializers.GetEnv("DB_PASSWORD", "")
+	dbName := initializers.GetEnv("DB_NAME", "")
+	port := initializers.GetEnv("DB_PORT", "5432")
+
+	return fmt.Sprintf(
+		"postgres://%s:%s@%s:%s/%s",
+		user, password, host, port, dbName,
+	)
+}
+
+func NewMenuStorageService(dbDir string, resourceDir string) *MenuStorageService {
+	return &MenuStorageService{
+		dbDir:       dbDir,
+		resourceDir: resourceDir,
+	}
+}
+
+func (ms *MenuStorageService) getOrCreateDb(ctx context.Context, existingDb db.Db, fileName string) (db.Db, error) {
+	database, ok := ctx.Value("Database").(string)
+	if !ok {
+		return nil, fmt.Errorf("failed to select the database")
+	}
+
+	if existingDb != nil {
+		return existingDb, nil
+	}
+
+	var newDb db.Db
+	var err error
+
+	if database == "postgres" {
+		newDb = postgres.NewPgDb()
+		connStr := buildConnStr()
+		err = newDb.Connect(ctx, connStr)
+	} else {
+		newDb = NewThreadGdbmDb()
+		storeFile := path.Join(ms.dbDir, fileName)
+		err = newDb.Connect(ctx, storeFile)
+	}
+
+	if err != nil {
+		return nil, err
+	}
+
+	return newDb, nil
+}
+
+func (ms *MenuStorageService) GetPersister(ctx context.Context) (*persist.Persister, error) {
+	stateStore, err := ms.GetStateStore(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	pr := persist.NewPersister(stateStore)
+	logg.TraceCtxf(ctx, "menu storage service", "persist", pr, "store", stateStore)
+	return pr, nil
+}
+
+func (ms *MenuStorageService) GetUserdataDb(ctx context.Context) (db.Db, error) {
+	if ms.userDataStore != nil {
+		return ms.userDataStore, nil
+	}
+
+	userDataStore, err := ms.getOrCreateDb(ctx, ms.userDataStore, "userdata.gdbm")
+	if err != nil {
+		return nil, err
+	}
+
+	ms.userDataStore = userDataStore
+	return ms.userDataStore, nil
+}
+
+func (ms *MenuStorageService) GetResource(ctx context.Context) (resource.Resource, error) {
+	ms.resourceStore = fsdb.NewFsDb()
+	err := ms.resourceStore.Connect(ctx, ms.resourceDir)
+	if err != nil {
+		return nil, err
+	}
+	rfs := resource.NewDbResource(ms.resourceStore)
+	return rfs, nil
+}
+
+func (ms *MenuStorageService) GetStateStore(ctx context.Context) (db.Db, error) {
+	if ms.stateStore != nil {
+		return ms.stateStore, nil
+	}
+
+	stateStore, err := ms.getOrCreateDb(ctx, ms.stateStore, "state.gdbm")
+	if err != nil {
+		return nil, err
+	}
+
+	ms.stateStore = stateStore
+	return ms.stateStore, nil
+}
+
+func (ms *MenuStorageService) EnsureDbDir() error {
+	err := os.MkdirAll(ms.dbDir, 0700)
+	if err != nil {
+		return fmt.Errorf("state dir create exited with error: %v\n", err)
+	}
+	return nil
+}
+
+func (ms *MenuStorageService) Close() error {
+	errA := ms.stateStore.Close()
+	errB := ms.userDataStore.Close()
+	errC := ms.resourceStore.Close()
+	if errA != nil || errB != nil || errC != nil {
+		return fmt.Errorf("%v %v %v", errA, errB, errC)
+	}
+	return nil
+}

internal/testutil/TestEngine.go

@@ -0,0 +1,124 @@
+package testutil
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path"
+	"time"
+
+	"git.defalsify.org/vise.git/engine"
+	"git.defalsify.org/vise.git/logging"
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/storage"
+	"git.grassecon.net/urdt/ussd/internal/testutil/testservice"
+	"git.grassecon.net/urdt/ussd/internal/testutil/testtag"
+	testdataloader "github.com/peteole/testdata-loader"
+	"git.grassecon.net/urdt/ussd/remote"
+)
+
+var (
+	baseDir   = testdataloader.GetBasePath()
+	logg      = logging.NewVanilla()
+	scriptDir = path.Join(baseDir, "services", "registration")
+)
+
+func TestEngine(sessionId string) (engine.Engine, func(), chan bool) {
+	ctx := context.Background()
+	ctx = context.WithValue(ctx, "SessionId", sessionId)
+	ctx = context.WithValue(ctx, "Database", "gdbm")
+	pfp := path.Join(scriptDir, "pp.csv")
+
+	var eventChannel = make(chan bool)
+
+	cfg := engine.Config{
+		Root:       "root",
+		SessionId:  sessionId,
+		OutputSize: uint32(160),
+		FlagCount:  uint32(128),
+	}
+
+	dbDir := ".test_state"
+	resourceDir := scriptDir
+	menuStorageService := storage.NewMenuStorageService(dbDir, resourceDir)
+
+	err := menuStorageService.EnsureDbDir()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	rs, err := menuStorageService.GetResource(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	pe, err := menuStorageService.GetPersister(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	userDataStore, err := menuStorageService.GetUserdataDb(ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	dbResource, ok := rs.(*resource.DbResource)
+	if !ok {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	lhs, err := handlers.NewLocalHandlerService(ctx, pfp, true, dbResource, cfg, rs)
+	lhs.SetDataStore(&userDataStore)
+	lhs.SetPersister(pe)
+
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	if testtag.AccountService == nil {
+		testtag.AccountService = &remote.AccountService{}
+	}
+
+	switch testtag.AccountService.(type) {
+	case *testservice.TestAccountService:
+		go func() {
+			eventChannel <- false
+		}()
+	case *remote.AccountService:
+		go func() {
+			time.Sleep(5 * time.Second) // Wait for 5 seconds
+			eventChannel <- true
+		}()
+	default:
+		panic("Unknown account service type")
+	}
+
+	hl, err := lhs.GetHandler(testtag.AccountService)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	en := lhs.GetEngine()
+	en = en.WithFirst(hl.Init)
+	cleanFn := func() {
+		err := en.Finish()
+		if err != nil {
+			logg.Errorf(err.Error())
+		}
+
+		err = menuStorageService.Close()
+		if err != nil {
+			logg.Errorf(err.Error())
+		}
+		logg.Infof("testengine storage closed")
+	}
+	return en, cleanFn, eventChannel
+}

internal/testutil/driver/groupdriver.go

@@ -0,0 +1,111 @@
+package driver
+
+import (
+	"encoding/json"
+	"log"
+	"os"
+	"regexp"
+)
+
+type Step struct {
+	Input           string `json:"input"`
+	ExpectedContent string `json:"expectedContent"`
+}
+
+func (s *Step) MatchesExpectedContent(content []byte) (bool, error) {
+	pattern := regexp.QuoteMeta(s.ExpectedContent)
+	re, err := regexp.Compile(pattern)
+	if err != nil {
+		return false, err
+	}
+	if re.Match([]byte(content)) {
+		return true, nil
+	}
+	return false, nil
+}
+
+// Group represents a group of steps
+type Group struct {
+	Name  string `json:"name"`
+	Steps []Step `json:"steps"`
+}
+
+type TestCase struct {
+	Name            string
+	Input           string
+	ExpectedContent string
+}
+
+func (s *TestCase) MatchesExpectedContent(content []byte) (bool, error) {
+	pattern := regexp.QuoteMeta(s.ExpectedContent)
+	re, err := regexp.Compile(pattern)
+	if err != nil {
+		return false, err
+	}
+	// Check if the content matches the regex pattern
+	if re.Match(content) {
+		return true, nil
+	}
+	return false, nil
+}
+
+// DataGroup represents the overall structure of the JSON.
+type DataGroup struct {
+	Groups []Group `json:"groups"`
+}
+
+type Session struct {
+	Name   string  `json:"name"`
+	Groups []Group `json:"groups"`
+}
+
+func ReadData() []Session {
+	data, err := os.ReadFile("test_setup.json")
+	if err != nil {
+		log.Fatalf("Failed to read file: %v", err)
+	}
+	// Unmarshal JSON data
+	var sessions []Session
+	err = json.Unmarshal(data, &sessions)
+	if err != nil {
+		log.Fatalf("Failed to unmarshal JSON: %v", err)
+	}
+
+	return sessions
+}
+
+func FilterGroupsByName(groups []Group, name string) []Group {
+	var filteredGroups []Group
+	for _, group := range groups {
+		if group.Name == name {
+			filteredGroups = append(filteredGroups, group)
+		}
+	}
+	return filteredGroups
+}
+
+func LoadTestGroups(filePath string) (DataGroup, error) {
+	var sessionsData DataGroup
+	data, err := os.ReadFile(filePath)
+	if err != nil {
+		return sessionsData, err
+	}
+	err = json.Unmarshal(data, &sessionsData)
+	return sessionsData, err
+}
+
+func CreateTestCases(group DataGroup) []TestCase {
+	var tests []TestCase
+	for _, group := range group.Groups {
+		for _, step := range group.Steps {
+			// Create a test case for each group
+			tests = append(tests, TestCase{
+				Name:            group.Name,
+				Input:           step.Input,
+				ExpectedContent: step.ExpectedContent,
+			})
+		}
+	}
+
+	return tests
+}

internal/testutil/mocks/httpmocks/enginemock.go

@@ -0,0 +1,30 @@
+package httpmocks
+
+import (
+	"context"
+	"io"
+)
+
+// MockEngine implements the engine.Engine interface for testing
+type MockEngine struct {
+	InitFunc   func(context.Context) (bool, error)
+	ExecFunc   func(context.Context, []byte) (bool, error)
+	FlushFunc  func(context.Context, io.Writer) (int, error)
+	FinishFunc func() error
+}
+
+func (m *MockEngine) Init(ctx context.Context) (bool, error) {
+	return m.InitFunc(ctx)
+}
+
+func (m *MockEngine) Exec(ctx context.Context, input []byte) (bool, error) {
+	return m.ExecFunc(ctx, input)
+}
+
+func (m *MockEngine) Flush(ctx context.Context, w io.Writer) (int, error) {
+	return m.FlushFunc(ctx, w)
+}
+
+func (m *MockEngine) Finish() error {
+	return m.FinishFunc()
+}

internal/testutil/mocks/httpmocks/requesthandlermock.go

@@ -0,0 +1,47 @@
+package httpmocks
+
+import (
+	"git.defalsify.org/vise.git/engine"
+	"git.defalsify.org/vise.git/persist"
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+)
+
+// MockRequestHandler implements handlers.RequestHandler interface for testing
+type MockRequestHandler struct {
+	ProcessFunc          func(handlers.RequestSession) (handlers.RequestSession, error)
+	GetConfigFunc        func() engine.Config
+	GetEngineFunc        func(cfg engine.Config, rs resource.Resource, pe *persist.Persister) engine.Engine
+	OutputFunc           func(rs handlers.RequestSession) (handlers.RequestSession, error)
+	ResetFunc            func(rs handlers.RequestSession) (handlers.RequestSession, error)
+	ShutdownFunc         func()
+	GetRequestParserFunc func() handlers.RequestParser
+}
+
+func (m *MockRequestHandler) Process(rqs handlers.RequestSession) (handlers.RequestSession, error) {
+	return m.ProcessFunc(rqs)
+}
+
+func (m *MockRequestHandler) GetConfig() engine.Config {
+	return m.GetConfigFunc()
+}
+
+func (m *MockRequestHandler) GetEngine(cfg engine.Config, rs resource.Resource, pe *persist.Persister) engine.Engine {
+	return m.GetEngineFunc(cfg, rs, pe)
+}
+
+func (m *MockRequestHandler) Output(rs handlers.RequestSession) (handlers.RequestSession, error) {
+	return m.OutputFunc(rs)
+}
+
+func (m *MockRequestHandler) Reset(rs handlers.RequestSession) (handlers.RequestSession, error) {
+	return m.ResetFunc(rs)
+}
+
+func (m *MockRequestHandler) Shutdown() {
+	m.ShutdownFunc()
+}
+
+func (m *MockRequestHandler) GetRequestParser() handlers.RequestParser {
+	return m.GetRequestParserFunc()
+}

internal/testutil/mocks/httpmocks/requestparsermock.go

@@ -0,0 +1,15 @@
+package httpmocks
+
+// MockRequestParser implements the handlers.RequestParser interface for testing
+type MockRequestParser struct {
+	GetSessionIdFunc func(any) (string, error)
+	GetInputFunc     func(any) ([]byte, error)
+}
+
+func (m *MockRequestParser) GetSessionId(rq any) (string, error) {
+	return m.GetSessionIdFunc(rq)
+}
+
+func (m *MockRequestParser) GetInput(rq any) ([]byte, error) {
+	return m.GetInputFunc(rq)
+}

internal/testutil/mocks/httpmocks/writermock.go

@@ -0,0 +1,25 @@
+package httpmocks
+
+import "net/http"
+
+// MockWriter implements a mock io.Writer for testing
+type MockWriter struct {
+	WriteStringCalled bool
+	WrittenString     string
+}
+
+func (m *MockWriter) Write(p []byte) (n int, err error) {
+	return len(p), nil
+}
+
+func (m *MockWriter) WriteString(s string) (n int, err error) {
+	m.WriteStringCalled = true
+	m.WrittenString = s
+	return len(s), nil
+}
+
+func (m *MockWriter) Header() http.Header {
+	return http.Header{}
+}
+
+func (m *MockWriter) WriteHeader(statusCode int) {}

internal/testutil/mocks/servicemock.go

@@ -0,0 +1,45 @@
+package mocks
+
+import (
+	"context"
+
+	"git.grassecon.net/urdt/ussd/models"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+	"github.com/stretchr/testify/mock"
+)
+
+// MockAccountService implements AccountServiceInterface for testing
+type MockAccountService struct {
+	mock.Mock
+}
+
+func (m *MockAccountService) CreateAccount(ctx context.Context) (*models.AccountResult, error) {
+	args := m.Called()
+	return args.Get(0).(*models.AccountResult), args.Error(1)
+}
+
+func (m *MockAccountService) CheckBalance(ctx context.Context, publicKey string) (*models.BalanceResult, error) {
+	args := m.Called(publicKey)
+	return args.Get(0).(*models.BalanceResult), args.Error(1)
+}
+
+func (m *MockAccountService) TrackAccountStatus(ctx context.Context, trackingId string) (*models.TrackStatusResult, error) {
+	args := m.Called(trackingId)
+	return args.Get(0).(*models.TrackStatusResult), args.Error(1)
+}
+
+
+func (m *MockAccountService) FetchVouchers(ctx context.Context, publicKey string) ([]dataserviceapi.TokenHoldings, error) {
+	args := m.Called(publicKey)
+	return args.Get(0).([]dataserviceapi.TokenHoldings), args.Error(1)
+}
+
+func (m *MockAccountService) FetchTransactions(ctx context.Context, publicKey string) ([]dataserviceapi.Last10TxResponse, error) {
+	args := m.Called(publicKey)
+	return args.Get(0).([]dataserviceapi.Last10TxResponse), args.Error(1)
+}
+
+func(m MockAccountService) VoucherData(ctx context.Context, address string) (*models.VoucherDataResult, error) {
+	args := m.Called(address)
+	return args.Get(0).(*models.VoucherDataResult), args.Error(1)
+}

internal/testutil/testservice/TestAccountService.go

@@ -0,0 +1,52 @@
+package testservice
+
+import (
+	"context"
+	"encoding/json"
+
+	"git.grassecon.net/urdt/ussd/models"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+)
+
+type TestAccountService struct {
+}
+
+func (tas *TestAccountService) CreateAccount(ctx context.Context) (*models.AccountResult, error) {
+	return &models.AccountResult {
+		TrackingId: "075ccc86-f6ef-4d33-97d5-e91cfb37aa0d",
+		PublicKey: "0x623EFAFa8868df4B934dd12a8B26CB3Dd75A7AdD",
+	}, nil
+}
+
+func (tas *TestAccountService) CheckBalance(ctx context.Context, publicKey string) (*models.BalanceResult, error) {
+	balanceResponse := &models.BalanceResult {
+		Balance: "0.003 CELO",
+		Nonce:   json.Number("0"),
+	}
+	return balanceResponse, nil
+}
+
+func (tas *TestAccountService) TrackAccountStatus(ctx context.Context, publicKey string) (*models.TrackStatusResult, error) {
+	return &models.TrackStatusResult {
+		Active: true,
+	}, nil
+}
+
+func (tas *TestAccountService) FetchVouchers(ctx context.Context, publicKey string) ([]dataserviceapi.TokenHoldings, error) {
+	return []dataserviceapi.TokenHoldings {
+		dataserviceapi.TokenHoldings {
+			ContractAddress: "0x6CC75A06ac72eB4Db2eE22F781F5D100d8ec03ee",
+			TokenSymbol:     "SRF",
+			TokenDecimals:   "6",
+			Balance:         "2745987",
+		},
+	}, nil 
+}
+
+func (tas *TestAccountService) FetchTransactions(ctx context.Context, publicKey string) ([]dataserviceapi.Last10TxResponse, error) {
+	return []dataserviceapi.Last10TxResponse{}, nil
+}
+
+func(m TestAccountService) VoucherData(ctx context.Context, address string) (*models.VoucherDataResult, error) {
+	return &models.VoucherDataResult{}, nil
+}

internal/testutil/testtag/offlinetest.go

@@ -0,0 +1,12 @@
+// +build !online
+
+package testtag
+
+import (
+	"git.grassecon.net/urdt/ussd/remote"
+	accountservice "git.grassecon.net/urdt/ussd/internal/testutil/testservice"
+)
+
+var (
+	AccountService remote.AccountServiceInterface = &accountservice.TestAccountService{}
+)

internal/testutil/testtag/onlinetest.go

@@ -0,0 +1,9 @@
+// +build online
+
+package testtag
+
+import "git.grassecon.net/urdt/ussd/internal/handlers/server"
+
+var (
+	AccountService server.AccountServiceInterface
+)

internal/utils/adminstore.go

@@ -0,0 +1,51 @@
+package utils
+
+import (
+	"context"
+
+	"git.defalsify.org/vise.git/db"
+	fsdb "git.defalsify.org/vise.git/db/fs"
+	"git.defalsify.org/vise.git/logging"
+)
+
+var (
+	logg = logging.NewVanilla().WithDomain("adminstore")
+)
+
+type AdminStore struct {
+	ctx     context.Context
+	FsStore db.Db
+}
+
+func NewAdminStore(ctx context.Context, fileName string) (*AdminStore, error) {
+	fsStore, err := getFsStore(ctx, fileName)
+	if err != nil {
+		return nil, err
+	}
+	return &AdminStore{ctx: ctx, FsStore: fsStore}, nil
+}
+
+func getFsStore(ctx context.Context, connectStr string) (db.Db, error) {
+	fsStore := fsdb.NewFsDb()
+	err := fsStore.Connect(ctx, connectStr)
+	fsStore.SetPrefix(db.DATATYPE_USERDATA)
+	if err != nil {
+		return nil, err
+	}
+	return fsStore, nil
+}
+
+// Checks if the given sessionId is listed as an admin.
+func (as *AdminStore) IsAdmin(sessionId string) (bool, error) {
+	_, err := as.FsStore.Get(as.ctx, []byte(sessionId))
+	if err != nil {
+		if db.IsNotFound(err) {
+			logg.Printf(logging.LVL_INFO, "Returning false because session id was not found")
+			return false, nil
+		} else {
+			return false, err
+		}
+	}
+
+	return true, nil
+}

internal/utils/db.go

@@ -1,57 +0,0 @@
-package utils
-
-import (
-	"context"
-	"encoding/binary"
-
-	"git.defalsify.org/vise.git/db"
-)
-
-type DataTyp uint16
-
-const (
-	DATA_ACCOUNT DataTyp = iota
-	DATA_ACCOUNT_CREATED
-	DATA_TRACKING_ID
-	DATA_PUBLIC_KEY
-	DATA_CUSTODIAL_ID
-	DATA_ACCOUNT_PIN
-	DATA_ACCOUNT_STATUS
-	DATA_FIRST_NAME
-	DATA_FAMILY_NAME
-	DATA_YOB
-	DATA_LOCATION
-	DATA_GENDER
-	DATA_OFFERINGS
-	DATA_RECIPIENT
-	DATA_AMOUNT
-)
-
-func typToBytes(typ DataTyp) []byte {
-	var b [2]byte
-	binary.BigEndian.PutUint16(b[:], uint16(typ))
-	return b[:]
-}
-
-func PackKey(typ DataTyp, data []byte) []byte {
-	v := typToBytes(typ)
-	return append(v, data...)
-}
-
-func ReadEntry(ctx context.Context, store db.Db, sessionId string, typ DataTyp) ([]byte, error) {
-	store.SetPrefix(db.DATATYPE_USERDATA)
-	store.SetSession(sessionId)
-	k := PackKey(typ, []byte(sessionId))
-	b, err := store.Get(ctx, k)
-	if err != nil {
-		return nil, err
-	}
-	return b, nil
-}
-
-func WriteEntry(ctx context.Context, store db.Db, sessionId string, typ DataTyp, value []byte) error {
-	store.SetPrefix(db.DATATYPE_USERDATA)
-	store.SetSession(sessionId)
-	k := PackKey(typ, []byte(sessionId))
-	return store.Put(ctx, k, value)
-}

internal/utils/isocode.go

@@ -0,0 +1,11 @@
+package utils
+
+var isoCodes = map[string]bool{
+	"eng": true, // English
+	"swa": true, // Swahili
+
+}
+
+func IsValidISO639(code string) bool {
+	return isoCodes[code]
+}

menutraversal_test/group_test.json

@@ -0,0 +1,460 @@
+{
+    "groups": [
+        {
+            "name": "my_account_change_pin",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "5",
+                    "expectedContent": "PIN Management\n1:Change PIN\n2:Reset other's PIN\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Enter your old PIN\n\n0:Back"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Enter a new four number PIN:\n\n0:Back"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Confirm your new PIN:\n\n0:Back"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Your PIN change request has been successful\n\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_language_change",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "2",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1235",
+                    "expectedContent": "Incorrect pin\n1:Retry\n9:Quit"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Select language:\n0:english\n1:kiswahili"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "Your language change request was successful.\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_check_my_balance",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "Balances:\n1:My balance\n2:Community balance\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1235",
+                    "expectedContent": "Incorrect pin\n1:Retry\n9:Quit"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Your balance is 0.003 CELO\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                     "expectedContent": "Balances:\n1:My balance\n2:Community balance\n0:Back"
+                    
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_check_community_balance",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "Balances:\n1:My balance\n2:Community balance\n0:Back"
+                },
+                {
+                    "input": "2",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1235",
+                    "expectedContent": "Incorrect pin\n1:Retry\n9:Quit"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Your community balance is 0.003 CELO\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                     "expectedContent": "Balances:\n1:My balance\n2:Community balance\n0:Back"
+                    
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_firstname",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Enter your first names:\n0:Back"
+                },
+                {
+                    "input": "foo",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_familyname",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "2",
+                    "expectedContent": "Enter family name:\n0:Back"
+                },
+                {
+                    "input": "bar",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+               
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_gender",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "Select gender: \n1:Male\n2:Female\n3:Unspecified\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_yob",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "4",
+                    "expectedContent": "Enter your year of birth\n0:Back"
+                },
+                {
+                    "input": "1945",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_location",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "5",
+                    "expectedContent": "Enter your location:\n0:Back"
+                },
+                {
+                    "input": "Kilifi",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_edit_offerings",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "6",
+                    "expectedContent": "Enter the services or goods you offer: \n0:Back"
+                },
+                {
+                    "input": "Bananas",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "Profile updated successfully\n\n0:Back\n9:Quit"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        },
+        {
+            "name": "menu_my_account_view_profile",
+            "steps": [
+                {
+                    "input": "",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                },
+                {
+                    "input": "3",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "1",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "7",
+                    "expectedContent": "Please enter your PIN:"
+                },
+                {
+                    "input": "1234",
+                    "expectedContent": "My profile:\nName: foo bar\nGender: male\nAge: 79\nLocation: Kilifi\nYou provide: Bananas\n\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My profile\n1:Edit name\n2:Edit family name\n3:Edit gender\n4:Edit year of birth\n5:Edit location\n6:Edit offerings\n7:View profile\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                },
+                {
+                    "input": "0",
+                    "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                }
+            ]
+        }
+    ]
+}
+      
+        
+       
+        
+    
+

menutraversal_test/menu_traversal_test.go

@@ -0,0 +1,380 @@
+package menutraversaltest
+
+import (
+	"bytes"
+	"context"
+	"log"
+	"math/rand"
+	"os"
+	"regexp"
+	"testing"
+
+	"git.grassecon.net/urdt/ussd/internal/testutil"
+	"git.grassecon.net/urdt/ussd/internal/testutil/driver"
+	"github.com/gofrs/uuid"
+)
+
+var (
+	testData      = driver.ReadData()
+	testStore     = ".test_state"
+	groupTestFile = "group_test.json"
+	sessionID     string
+	src           = rand.NewSource(42)
+	g             = rand.New(src)
+)
+
+func GenerateSessionId() string {
+	uu := uuid.NewGenWithOptions(uuid.WithRandomReader(g))
+	v, err := uu.NewV4()
+	if err != nil {
+		panic(err)
+	}
+	return v.String()
+}
+
+// Extract the public key from the engine response
+func extractPublicKey(response []byte) string {
+	// Regex pattern to match the public key starting with 0x and 40 characters
+	re := regexp.MustCompile(`0x[a-fA-F0-9]{40}`)
+	match := re.Find(response)
+	if match != nil {
+		return string(match)
+	}
+	return ""
+}
+
+// Extracts the balance value from the engine response.
+func extractBalance(response []byte) string {
+	// Regex to match "Balance: <amount> <symbol>" followed by a newline
+	re := regexp.MustCompile(`(?m)^Balance:\s+(\d+(\.\d+)?)\s+([A-Z]+)`)
+	match := re.FindSubmatch(response)
+	if match != nil {
+		return string(match[1]) + " " + string(match[3]) // "<amount> <symbol>"
+	}
+	return ""
+}
+
+// Extracts the Maximum amount value from the engine response.
+func extractMaxAmount(response []byte) string {
+	// Regex to match "Maximum amount: <amount>" followed by a newline
+	re := regexp.MustCompile(`(?m)^Maximum amount:\s+(\d+(\.\d+)?)`)
+	match := re.FindSubmatch(response)
+	if match != nil {
+		return string(match[1]) // "<amount>"
+	}
+	return ""
+}
+
+// Extracts the send amount value from the engine response.
+func extractSendAmount(response []byte) string {
+	// Regex to match the pattern "will receive X.XX SYM from"
+	re := regexp.MustCompile(`will receive (\d+\.\d{2}\s+[A-Z]+) from`)
+	match := re.FindSubmatch(response)
+	if match != nil {
+		return string(match[1]) // Returns "X.XX SYM"
+	}
+	return ""
+}
+
+func TestMain(m *testing.M) {
+	sessionID = GenerateSessionId()
+	defer func() {
+		if err := os.RemoveAll(testStore); err != nil {
+			log.Fatalf("Failed to delete state store %s: %v", testStore, err)
+		}
+	}()
+	m.Run()
+}
+
+func TestAccountCreationSuccessful(t *testing.T) {
+	en, fn, eventChannel := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "account_creation_successful")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				_, err = en.Flush(ctx, w)
+				if err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+				b := w.Bytes()
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+	<-eventChannel
+
+}
+
+func TestAccountRegistrationRejectTerms(t *testing.T) {
+	// Generate a new UUID for this edge case test
+	uu := uuid.NewGenWithOptions(uuid.WithRandomReader(g))
+	v, err := uu.NewV4()
+	if err != nil {
+		t.Fail()
+	}
+	edgeCaseSessionID := v.String()
+	en, fn, _ := testutil.TestEngine(edgeCaseSessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "account_creation_reject_terms")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+
+				b := w.Bytes()
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestMainMenuHelp(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "main_menu_help")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+
+				b := w.Bytes()
+				balance := extractBalance(b)
+
+				expectedContent := []byte(step.ExpectedContent)
+				expectedContent = bytes.Replace(expectedContent, []byte("{balance}"), []byte(balance), -1)
+
+				step.ExpectedContent = string(expectedContent)
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestMainMenuQuit(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "main_menu_quit")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+
+				b := w.Bytes()
+				balance := extractBalance(b)
+
+				expectedContent := []byte(step.ExpectedContent)
+				expectedContent = bytes.Replace(expectedContent, []byte("{balance}"), []byte(balance), -1)
+
+				step.ExpectedContent = string(expectedContent)
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestMyAccount_MyAddress(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "menu_my_account_my_address")
+		for _, group := range groups {
+			for index, step := range group.Steps {
+				t.Logf("step %v with input %v", index, step.Input)
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Errorf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Errorf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+				b := w.Bytes()
+
+				balance := extractBalance(b)
+				publicKey := extractPublicKey(b)
+
+				expectedContent := []byte(step.ExpectedContent)
+				expectedContent = bytes.Replace(expectedContent, []byte("{balance}"), []byte(balance), -1)
+				expectedContent = bytes.Replace(expectedContent, []byte("{public_key}"), []byte(publicKey), -1)
+
+				step.ExpectedContent = string(expectedContent)
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", expectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestMainMenuSend(t *testing.T) {
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	sessions := testData
+	for _, session := range sessions {
+		groups := driver.FilterGroupsByName(session.Groups, "send_with_invalid_inputs")
+		for _, group := range groups {
+			for _, step := range group.Steps {
+				cont, err := en.Exec(ctx, []byte(step.Input))
+				if err != nil {
+					t.Fatalf("Test case '%s' failed at input '%s': %v", group.Name, step.Input, err)
+					return
+				}
+				if !cont {
+					break
+				}
+				w := bytes.NewBuffer(nil)
+				if _, err := en.Flush(ctx, w); err != nil {
+					t.Fatalf("Test case '%s' failed during Flush: %v", group.Name, err)
+				}
+
+				b := w.Bytes()
+				balance := extractBalance(b)
+				max_amount := extractMaxAmount(b)
+				send_amount := extractSendAmount(b)
+
+				expectedContent := []byte(step.ExpectedContent)
+				expectedContent = bytes.Replace(expectedContent, []byte("{balance}"), []byte(balance), -1)
+				expectedContent = bytes.Replace(expectedContent, []byte("{max_amount}"), []byte(max_amount), -1)
+				expectedContent = bytes.Replace(expectedContent, []byte("{send_amount}"), []byte(send_amount), -1)
+				expectedContent = bytes.Replace(expectedContent, []byte("{session_id}"), []byte(sessionID), -1)
+
+				step.ExpectedContent = string(expectedContent)
+				match, err := step.MatchesExpectedContent(b)
+				if err != nil {
+					t.Fatalf("Error compiling regex for step '%s': %v", step.Input, err)
+				}
+				if !match {
+					t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", step.ExpectedContent, b)
+				}
+			}
+		}
+	}
+}
+
+func TestGroups(t *testing.T) {
+	groups, err := driver.LoadTestGroups(groupTestFile)
+	if err != nil {
+		log.Fatalf("Failed to load test groups: %v", err)
+	}
+	en, fn, _ := testutil.TestEngine(sessionID)
+	defer fn()
+	ctx := context.Background()
+	// Create test cases from loaded groups
+	tests := driver.CreateTestCases(groups)
+	for _, tt := range tests {
+		t.Run(tt.Name, func(t *testing.T) {
+			cont, err := en.Exec(ctx, []byte(tt.Input))
+			if err != nil {
+				t.Errorf("Test case '%s' failed at input '%s': %v", tt.Name, tt.Input, err)
+				return
+			}
+			if !cont {
+				return
+			}
+			w := bytes.NewBuffer(nil)
+			if _, err := en.Flush(ctx, w); err != nil {
+				t.Errorf("Test case '%s' failed during Flush: %v", tt.Name, err)
+			}
+			b := w.Bytes()
+			balance := extractBalance(b)
+
+			expectedContent := []byte(tt.ExpectedContent)
+			expectedContent = bytes.Replace(expectedContent, []byte("{balance}"), []byte(balance), -1)
+
+			tt.ExpectedContent = string(expectedContent)
+
+			match, err := tt.MatchesExpectedContent(b)
+			if err != nil {
+				t.Fatalf("Error compiling regex for step '%s': %v", tt.Input, err)
+			}
+			if !match {
+				t.Fatalf("expected:\n\t%s\ngot:\n\t%s\n", tt.ExpectedContent, b)
+			}
+		})
+	}
+}

menutraversal_test/test_setup.json

@@ -0,0 +1,153 @@
+[
+    {
+        "name": "session one",
+        "groups": [
+            {
+                "name": "account_creation_successful",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Welcome to Sarafu Network\nPlease select a language\n0:english\n1:kiswahili"
+                    },
+                    {
+                        "input": "0",
+                        "expectedContent": "Do you agree to terms and conditions?\n0:yes\n1:no"
+                    },
+                    {
+                        "input": "0",
+                        "expectedContent": "Please enter a new four number PIN for your account:\n0:Exit"
+                    },
+                    {
+                        "input": "1234",
+                        "expectedContent": "Enter your four number PIN again:"
+                    },
+                    {
+                        "input": "1111",
+                        "expectedContent": "The PIN is not a match. Try again\n1:Retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Enter your four number PIN again:"
+                    },
+                    {
+                        "input": "1234",
+                        "expectedContent": "Your account is being created...Thank you for using Sarafu. Goodbye!"
+                    }
+                ]
+            },
+            {
+                "name": "account_creation_reject_terms",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "Welcome to Sarafu Network\nPlease select a language\n0:english\n1:kiswahili"
+                    },
+                    {
+                        "input": "0",
+                        "expectedContent": "Do you agree to terms and conditions?\n0:yes\n1:no"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Thank you for using Sarafu. Goodbye!"
+                    }
+                ]
+            },
+            {
+                "name": "send_with_invalid_inputs",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Enter recipient's phone number:\n0:Back"
+                    },
+                    {
+                        "input": "000",
+                        "expectedContent": "000 is not registered or invalid, please try again:\n1:Retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "Enter recipient's phone number:\n0:Back"
+                    },
+                    {
+                        "input": "065656",
+                        "expectedContent": "{max_amount}\nEnter amount:\n0:Back"
+                    },
+                    {
+                        "input": "10000000",
+                        "expectedContent": "Amount 10000000 is invalid, please try again:\n1:Retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "{max_amount}\nEnter amount:\n0:Back"
+                    },
+                    {
+                        "input": "1.00",
+                        "expectedContent": "065656 will receive {send_amount} from {session_id}\nPlease enter your PIN to confirm:\n0:Back\n9:Quit"
+                    },
+                    {
+                        "input": "1222",
+                        "expectedContent": "Incorrect pin\n1:Retry\n9:Quit"
+                    },
+                    {
+                        "input": "1",
+                        "expectedContent": "065656 will receive {send_amount} from {session_id}\nPlease enter your PIN to confirm:\n0:Back\n9:Quit"
+                    },
+                    {
+                        "input": "1234",
+                        "expectedContent": "Your request has been sent. 065656 will receive {send_amount} from {session_id}."
+                    }
+                ]
+            },
+            {
+                "name": "main_menu_help",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "4",
+                        "expectedContent": "For more help,please call: 0757628885"
+                    }
+                ]
+            },
+            {
+                "name": "main_menu_quit",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "9",
+                        "expectedContent": "Thank you for using Sarafu. Goodbye!"
+                    }
+                ]
+            },
+            {
+                "name": "menu_my_account_my_address",
+                "steps": [
+                    {
+                        "input": "",
+                        "expectedContent": "{balance}\n\n1:Send\n2:My Vouchers\n3:My Account\n4:Help\n9:Quit"
+                    },
+                    {
+                        "input": "3",
+                        "expectedContent": "My Account\n1:Profile\n2:Change language\n3:Check balances\n4:Check statement\n5:PIN options\n6:My Address\n0:Back"
+                    },
+                    {
+                        "input": "6",
+                        "expectedContent": "Address: {public_key}\n0:Back\n9:Quit"
+                    },
+                    {
+                        "input": "9",
+                        "expectedContent": "Thank you for using Sarafu. Goodbye!"
+                    }
+                ]
+            }
+        ]
+    }
+]

models/accountresponse.go

@@ -0,0 +1,6 @@
+package models
+
+type AccountResult struct {
+	PublicKey string `json:"publicKey"`
+	TrackingId string `json:"trackingId"`
+}

models/balanceresponse.go

@@ -0,0 +1,9 @@
+package models
+
+import "encoding/json"
+
+
+type BalanceResult struct {
+	Balance string      `json:"balance"`
+	Nonce   json.Number `json:"nonce"`
+}

models/tokenresponse.go

@@ -0,0 +1,18 @@
+package models
+
+type ApiResponse struct {
+	OK          bool   `json:"ok"`
+	Description string `json:"description"`
+	Result      Result `json:"result"`
+}
+
+type Result struct {
+	Holdings []Holding `json:"holdings"`
+}
+
+type Holding struct {
+	ContractAddress string `json:"contractAddress"`
+	TokenSymbol     string `json:"tokenSymbol"`
+	TokenDecimals   string `json:"tokenDecimals"`
+	Balance         string `json:"balance"`
+}

models/trackstatusresponse.go

@@ -0,0 +1,18 @@
+package models
+
+import (
+	"encoding/json"
+	"time"
+)
+
+type Transaction struct {
+	CreatedAt     time.Time   `json:"createdAt"`
+	Status        string      `json:"status"`
+	TransferValue json.Number `json:"transferValue"`
+	TxHash        string      `json:"txHash"`
+	TxType        string      `json:"txType"`
+}
+
+type TrackStatusResult struct {
+	Active	bool `json:"active"`
+}

models/vouchersresponse.go

@@ -0,0 +1,21 @@
+package models
+
+import dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+
+//type VoucherHoldingResponse struct {
+//	Ok          bool          `json:"ok"`
+//	Description string        `json:"description"`
+//	Result      VoucherResult `json:"result"`
+//}
+
+// VoucherResult holds the list of token holdings
+type VoucherResult struct {
+	Holdings []dataserviceapi.TokenHoldings `json:"holdings"`
+}
+
+type VoucherDataResult struct {
+	TokenName	string `json:"tokenName"`
+	TokenSymbol     string `json:"tokenSymbol"`
+	TokenDecimals   string `json:"tokenDecimals"`
+	SinkAddress	string `json:"sinkAddress"`
+}

remote/accountservice.go

@@ -0,0 +1,243 @@
+package remote
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"io"
+	"log"
+	"net/http"
+	"net/url"
+
+	"git.grassecon.net/urdt/ussd/config"
+	"git.grassecon.net/urdt/ussd/models"
+	"github.com/grassrootseconomics/eth-custodial/pkg/api"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+)
+
+var (
+	InfoLogger  *log.Logger
+	ErrorLogger *log.Logger
+)
+
+type AccountServiceInterface interface {
+	CheckBalance(ctx context.Context, publicKey string) (*models.BalanceResult, error)
+	CreateAccount(ctx context.Context) (*models.AccountResult, error)
+	TrackAccountStatus(ctx context.Context, publicKey string) (*models.TrackStatusResult, error)
+	FetchVouchers(ctx context.Context, publicKey string) ([]dataserviceapi.TokenHoldings, error)
+	FetchTransactions(ctx context.Context, publicKey string) ([]dataserviceapi.Last10TxResponse, error)
+	VoucherData(ctx context.Context, address string) (*models.VoucherDataResult, error)
+}
+
+type AccountService struct {
+}
+
+// Parameters:
+//   - trackingId: A unique identifier for the account.This should be obtained from a previous call to
+//     CreateAccount or a similar function that returns an AccountResponse. The `trackingId` field in the
+//     AccountResponse struct can be used here to check the account status during a transaction.
+//
+// Returns:
+//   - string: The status of the transaction as a string. If there is an error during the request or processing, this will be an empty string.
+//   - error: An error if any occurred during the HTTP request, reading the response, or unmarshalling the JSON data.
+//     If no error occurs, this will be nil
+func (as *AccountService) TrackAccountStatus(ctx context.Context, publicKey string) (*models.TrackStatusResult, error) {
+	var r models.TrackStatusResult
+
+	ep, err := url.JoinPath(config.TrackURL, publicKey)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := http.NewRequest("GET", ep, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = doCustodialRequest(ctx, req, &r)
+	if err != nil {
+		return nil, err
+	}
+
+	return &r, nil
+}
+
+// CheckBalance retrieves the balance for a given public key from the custodial balance API endpoint.
+// Parameters:
+//   - publicKey: The public key associated with the account whose balance needs to be checked.
+func (as *AccountService) CheckBalance(ctx context.Context, publicKey string) (*models.BalanceResult, error) {
+	var balanceResult models.BalanceResult
+
+	ep, err := url.JoinPath(config.BalanceURL, publicKey)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := http.NewRequest("GET", ep, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = doCustodialRequest(ctx, req, &balanceResult)
+	return &balanceResult, err
+}
+
+// CreateAccount creates a new account in the custodial system.
+// Returns:
+//   - *models.AccountResponse: A pointer to an AccountResponse struct containing the details of the created account.
+//     If there is an error during the request or processing, this will be nil.
+//   - error: An error if any occurred during the HTTP request, reading the response, or unmarshalling the JSON data.
+//     If no error occurs, this will be nil.
+func (as *AccountService) CreateAccount(ctx context.Context) (*models.AccountResult, error) {
+	var r models.AccountResult
+	// Create a new request
+	req, err := http.NewRequest("POST", config.CreateAccountURL, nil)
+	if err != nil {
+		return nil, err
+	}
+	_, err = doCustodialRequest(ctx, req, &r)
+	if err != nil {
+		log.Printf("Failed to make custodial %s request to endpoint: %s with reason: %s", req.Method, req.URL, err.Error())
+		return nil, err
+	}
+
+	return &r, nil
+}
+
+// FetchVouchers retrieves the token holdings for a given public key from the data indexer API endpoint
+// Parameters:
+//   - publicKey: The public key associated with the account.
+func (as *AccountService) FetchVouchers(ctx context.Context, publicKey string) ([]dataserviceapi.TokenHoldings, error) {
+	var r []dataserviceapi.TokenHoldings
+
+	ep, err := url.JoinPath(config.VoucherHoldingsURL, publicKey)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := http.NewRequest("GET", ep, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = doDataRequest(ctx, req, r)
+	if err != nil {
+		return nil, err
+	}
+
+	return r, nil
+}
+
+// FetchTransactions retrieves the last 10 transactions for a given public key from the data indexer API endpoint
+// Parameters:
+//   - publicKey: The public key associated with the account.
+func (as *AccountService) FetchTransactions(ctx context.Context, publicKey string) ([]dataserviceapi.Last10TxResponse, error) {
+	var r []dataserviceapi.Last10TxResponse
+
+	ep, err := url.JoinPath(config.VoucherTransfersURL, publicKey)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := http.NewRequest("GET", ep, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = doDataRequest(ctx, req, r)
+	if err != nil {
+		return nil, err
+	}
+
+	return r, nil
+}
+
+// VoucherData retrieves voucher metadata from the data indexer API endpoint.
+// Parameters:
+//   - address: The voucher address.
+func (as *AccountService) VoucherData(ctx context.Context, address string) (*models.VoucherDataResult, error) {
+	var voucherDataResult models.VoucherDataResult
+
+	ep, err := url.JoinPath(config.VoucherDataURL, address)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := http.NewRequest("GET", ep, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	_, err = doCustodialRequest(ctx, req, &voucherDataResult)
+	return &voucherDataResult, err
+}
+
+func doRequest(ctx context.Context, req *http.Request, rcpt any) (*api.OKResponse, error) {
+	var okResponse api.OKResponse
+	var errResponse api.ErrResponse
+	req.Header.Set("Content-Type", "application/json")
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		errResponse.Description = err.Error()
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	InfoLogger.Printf("Received response for %s: Status Code: %d | Content-Type: %s", req.URL, resp.StatusCode, resp.Header.Get("Content-Type"))
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+	if resp.StatusCode >= http.StatusBadRequest {
+		err := json.Unmarshal([]byte(body), &errResponse)
+		if err != nil {
+			return nil, err
+		}
+		return nil, errors.New(errResponse.Description)
+	}
+	err = json.Unmarshal([]byte(body), &okResponse)
+	if err != nil {
+		return nil, err
+	}
+	if len(okResponse.Result) == 0 {
+		return nil, errors.New("Empty api result")
+	}
+
+	v, err := json.Marshal(okResponse.Result)
+	if err != nil {
+		return nil, err
+	}
+
+	err = json.Unmarshal(v, &rcpt)
+	return &okResponse, err
+}
+
+func doCustodialRequest(ctx context.Context, req *http.Request, rcpt any) (*api.OKResponse, error) {
+	req.Header.Set("X-GE-KEY", config.CustodialAPIKey)
+	logRequestDetails(req)
+	return doRequest(ctx, req, rcpt)
+}
+
+func doDataRequest(ctx context.Context, req *http.Request, rcpt any) (*api.OKResponse, error) {
+	req.Header.Set("X-GE-KEY", config.DataAPIKey)
+	logRequestDetails(req)
+	return doRequest(ctx, req, rcpt)
+}
+
+func logRequestDetails(req *http.Request) {
+	var bodyBytes []byte
+	contentType := req.Header.Get("Content-Type")
+	if req.Body != nil {
+		bodyBytes, err := io.ReadAll(req.Body)
+		if err != nil {
+			ErrorLogger.Printf("Error reading request body: %s", err)
+			return
+		}
+		req.Body = io.NopCloser(bytes.NewBuffer(bodyBytes))
+	} else {
+		bodyBytes = []byte("-")
+	}
+
+	InfoLogger.Printf("URL: %s  | Content-Type: %s | Method: %s| Request Body: %s", req.URL, contentType, req.Method, string(bodyBytes))
+}

sample_tokens.json

@@ -0,0 +1,44 @@
+{
+    "ok": true,
+    "description": "Token holdings with current balances",
+    "result": {
+      "holdings": [
+        {
+          "contractAddress": "0x6CC75A06ac72eB4Db2eE22F781F5D100d8ec03ee",
+          "tokenSymbol": "FSPTST",
+          "tokenDecimals": "6",
+          "balance": "8869964242"
+        },
+        {
+          "contractAddress": "0x724F2910D790B54A39a7638282a45B1D83564fFA",
+          "tokenSymbol": "GEO",
+          "tokenDecimals": "6",
+          "balance": "9884"
+        },
+        {
+          "contractAddress": "0x2105a206B7bec31E2F90acF7385cc8F7F5f9D273",
+          "tokenSymbol": "MFNK",
+          "tokenDecimals": "6",
+          "balance": "19788697"
+        },
+        {
+          "contractAddress": "0x63DE2Ac8D1008351Cc69Fb8aCb94Ba47728a7E83",
+          "tokenSymbol": "MILO",
+          "tokenDecimals": "6",
+          "balance": "75"
+        },
+        {
+          "contractAddress": "0xd4c288865Ce0985a481Eef3be02443dF5E2e4Ea9",
+          "tokenSymbol": "SOHAIL",
+          "tokenDecimals": "6",
+          "balance": "27874115"
+        },
+        {
+          "contractAddress": "0x45d747172e77d55575c197CbA9451bC2CD8F4958",
+          "tokenSymbol": "SRF",
+          "tokenDecimals": "6",
+          "balance": "2745987"
+        }
+      ]
+    }
+  }

services/registration/Makefile

@@ -1,10 +1,11 @@
 # Variables to match files in the current directory
 INPUTS = $(wildcard ./*.vis)
 TXTS = $(wildcard ./*.txt.orig)
+VISE_PATH := ../../go-vise
 
 # Rule to build .bin files from .vis files
 %.vis:
-	go run  ../../go-vise/dev/asm/main.go -f pp.csv $(basename $@).vis > $(basename $@).bin
+	go run  $(VISE_PATH)/dev/asm/main.go -f pp.csv $(basename $@).vis > $(basename $@).bin
 	@echo "Built $(basename $@).bin from $(basename $@).vis"
 
 # Rule to copy .orig files to .txt

services/registration/_catch

@@ -0,0 +1 @@
+Something went wrong.Please try again

services/registration/_catch.vis

@@ -0,0 +1 @@
+HALT

services/registration/account_creation.vis

@@ -1,4 +1,4 @@
-RELOAD verify_pin
+RELOAD verify_create_pin
 CATCH create_pin_mismatch flag_pin_mismatch 1
 LOAD quit 0
 HALT

services/registration/address.vis

@@ -1,6 +1,8 @@
 LOAD check_identifier 0
 RELOAD check_identifier
 MAP check_identifier
+MOUT back 0
 MOUT quit 9
 HALT
+INCMP _ 0
 INCMP quit 9

services/registration/address_swa

@@ -0,0 +1 @@
+Anwani:{{.check_identifier}}

services/registration/amount.vis

@@ -1,12 +1,15 @@
 LOAD reset_transaction_amount 0
 LOAD max_amount 10
+RELOAD max_amount
 MAP max_amount
 MOUT back 0
 HALT
 LOAD validate_amount 64
 RELOAD validate_amount
+CATCH api_failure  flag_api_call_error  1
 CATCH invalid_amount flag_invalid_amount 1
 INCMP _ 0
 LOAD get_recipient 12
 LOAD get_sender 64
+LOAD get_amount 32
 INCMP transaction_pin *

services/registration/api_failure

@@ -0,0 +1 @@
+Failed to connect to the custodial service.Please try again.

services/registration/api_failure.vis

@@ -0,0 +1,5 @@
+MOUT retry 0
+MOUT quit 9
+HALT
+INCMP _ 0
+INCMP quit 9

services/registration/back_menu_swa

@@ -1 +1 @@
-Rudi
+Rudi

services/registration/balances

@@ -1 +1 @@
-Balances:
+Balances:

services/registration/balances.vis

@@ -1,4 +1,5 @@
 LOAD reset_account_authorized 0
+RELOAD reset_account_authorized
 MOUT my_balance 1
 MOUT community_balance 2
 MOUT back 0

services/registration/balances_swa

@@ -1 +1 @@
-Salio
+Salio:

services/registration/change_language

@@ -0,0 +1 @@
+Select language:

services/registration/change_language.vis

@@ -0,0 +1,10 @@
+LOAD reset_account_authorized 0
+LOAD reset_incorrect 0
+CATCH incorrect_pin flag_incorrect_pin 1
+CATCH pin_entry flag_account_authorized 0
+MOUT english 0
+MOUT kiswahili 1
+HALT
+INCMP set_default 0
+INCMP set_swa 1
+INCMP . *

services/registration/change_language_menu_swa

@@ -1 +1 @@
-Badili lugha
+Badili lugha

services/registration/change_language_swa

@@ -0,0 +1 @@
+Chagua lugha:

services/registration/change_pin_menu

@@ -1 +1 @@
-Change PIN
+Change PIN

services/registration/change_pin_menu_swa

@@ -1 +1 @@
-Badili PIN
+Badili PIN

services/registration/check_statement_menu

@@ -1 +1 @@
-Check statement
+Check statement

services/registration/community_balance

@@ -1,2 +1 @@
-Your community balance is: 0.00SRF
-
+{{.fetch_custodial_balances}}

services/registration/community_balance.vis

@@ -1,5 +1,11 @@
-LOAD reset_incorrect 0
+LOAD reset_incorrect 6
+LOAD fetch_custodial_balances 0
+CATCH api_failure  flag_api_call_error  1
+MAP fetch_custodial_balances
 CATCH incorrect_pin flag_incorrect_pin 1
 CATCH pin_entry flag_account_authorized 0
-LOAD quit_with_balance 0
+MOUT back 0
+MOUT quit 9
 HALT
+INCMP _ 0
+INCMP quit 9

services/registration/community_balance_menu

@@ -1 +1 @@
-Community  balance
+Community balance

services/registration/confirm_create_pin.vis

@@ -1,4 +1,4 @@
-LOAD save_pin 0
+LOAD save_temporary_pin 6
 HALT
-LOAD verify_pin 8
+LOAD verify_create_pin 8
 INCMP account_creation *

services/registration/confirm_others_new_pin

@@ -0,0 +1 @@
+Please confirm new PIN  for:{{.retrieve_blocked_number}}

services/registration/confirm_others_new_pin.vis

@@ -0,0 +1,14 @@
+CATCH pin_entry flag_incorrect_pin 1
+RELOAD retrieve_blocked_number
+MAP retrieve_blocked_number
+CATCH invalid_others_pin flag_valid_pin 0
+CATCH pin_reset_result flag_account_authorized 1
+LOAD save_others_temporary_pin 6
+RELOAD save_others_temporary_pin
+MOUT back 0
+HALT 
+INCMP _ 0
+LOAD check_pin_mismatch 0
+RELOAD check_pin_mismatch
+CATCH others_pin_mismatch flag_pin_mismatch 1
+INCMP pin_entry *

services/registration/confirm_others_new_pin_swa

@@ -0,0 +1 @@
+Tafadhali thibitisha PIN mpya ya: {{.retrieve_blocked_number}}

services/registration/confirm_pin_change

@@ -0,0 +1 @@
+Confirm your new PIN:

services/registration/confirm_pin_change.vis

@@ -0,0 +1,5 @@
+CATCH invalid_pin flag_valid_pin 0
+MOUT back 0
+HALT
+INCMP _ 0
+INCMP * pin_reset_success

services/registration/confirm_pin_change_swa

@@ -0,0 +1 @@
+Thibitisha PIN yako mpya:

services/registration/create_pin.vis

@@ -2,8 +2,8 @@ LOAD create_account 0
 CATCH account_creation_failed flag_account_creation_failed 1
 MOUT exit 0
 HALT
-LOAD save_pin 0
-RELOAD save_pin
+LOAD save_temporary_pin 6
+RELOAD save_temporary_pin
 CATCH . flag_incorrect_pin 1
 INCMP quit 0
 INCMP confirm_create_pin *

services/registration/edit_familyname_menu

@@ -0,0 +1 @@
+Edit family name

services/registration/edit_familyname_menu_swa

@@ -0,0 +1 @@
+Weka jina la familia

services/registration/edit_name_menu

@@ -1 +1 @@
-Edit name
+Edit name

services/registration/edit_name_menu_swa

@@ -1 +1 @@
-Weka jina
+Weka jina

services/registration/edit_offerings_menu

@@ -1 +1 @@
-Edit offerings
+Edit offerings

services/registration/edit_profile.vis

@@ -1,20 +1,21 @@
 LOAD reset_account_authorized 16
+RELOAD reset_account_authorized
 LOAD reset_allow_update 0
 RELOAD reset_allow_update
 MOUT edit_name 1
-MOUT edit_gender 2
-MOUT edit_yob 3
-MOUT edit_location 4
-MOUT edit_offerings 5
-MOUT view 6
+MOUT edit_familyname 2
+MOUT edit_gender 3
+MOUT edit_yob 4
+MOUT edit_location 5
+MOUT edit_offerings 6
+MOUT view 7
 MOUT back 0
 HALT
-INCMP _ 0
-LOAD set_reset_single_edit 0
-RELOAD set_reset_single_edit
+INCMP my_account 0
 INCMP enter_name 1
-INCMP select_gender 2
-INCMP enter_yob 3
-INCMP enter_location 4
-INCMP enter_offerings 5
-INCMP view_profile 6
+INCMP enter_familyname 2
+INCMP select_gender 3
+INCMP enter_yob 4
+INCMP enter_location 5
+INCMP enter_offerings 6
+INCMP view_profile 7