Update the func name to Output

Signed-off-by: Alfred Kamanda <alfredkamandamw@gmail.com>

cmd/africastalking/main.go

@@ -0,0 +1,257 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"net/http"
+	"os"
+	"os/signal"
+	"path"
+	"strconv"
+	"strings"
+	"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/logging"
+	"git.defalsify.org/vise.git/resource"
+
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
+	httpserver "git.grassecon.net/urdt/ussd/internal/http"
+)
+
+var (
+	logg = logging.NewVanilla()
+	scriptDir = path.Join("services", "registration")
+)
+
+type atRequestParser struct {}
+
+func(arp *atRequestParser) GetSessionId(rq any) (string, error) {
+	rqv, ok := rq.(*http.Request)
+	if !ok {
+		return "", handlers.ErrInvalidRequest
+	}
+	if err := rqv.ParseForm(); err != nil {
+		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 getFlags(fp string, debug bool) (*asm.FlagParser, error) {
+	flagParser := asm.NewFlagParser().WithDebug()
+	_, err := flagParser.Load(fp)
+	if err != nil {
+		return nil, err
+	}
+	return flagParser, nil
+}
+
+func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, userdataStore db.Db) (*ussd.Handlers, error) {
+
+	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
+}
+
+
+func main() {
+	var dbDir string
+	var resourceDir string
+	var size uint
+	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.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.Parse()
+
+	logg.Infof("start command", "dbdir", dbDir, "resourcedir", resourceDir,  "outputsize", size)
+
+	ctx := context.Background()
+	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
+	}
+	if engineDebug {
+		cfg.EngineDebug = true
+	}
+
+	rs, err := getResource(resourceDir, ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	err = ensureDbDir(dbDir)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	userdataStore := getUserdataDb(dbDir, 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)
+	}
+
+	hl, err := getHandler(flagParser, dbResource, userdataStore)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	stateStore, err := getStateStore(dbDir, 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)
+	s := &http.Server{
+		Addr: fmt.Sprintf("%s:%s", host, strconv.Itoa(int(port))),
+		Handler: sh,
+	}
+	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 +1,251 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"os"
+	"os/signal"
+	"path"
+	"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.grassecon.net/urdt/ussd/internal/handlers/ussd"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+)
+
+var (
+	logg = logging.NewVanilla()
+	scriptDir = path.Join("services", "registration")
+)
+
+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 getFlags(fp string, debug bool) (*asm.FlagParser, error) {
+	flagParser := asm.NewFlagParser().WithDebug()
+	_, err := flagParser.Load(fp)
+	if err != nil {
+		return nil, err
+	}
+	return flagParser, nil
+}
+
+func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, userdataStore db.Db) (*ussd.Handlers, error) {
+
+	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
+}
+
+
+func main() {
+	var sessionId string
+	var dbDir string
+	var resourceDir string
+	var size uint
+	var engineDebug bool
+	var stateDebug 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.BoolVar(&engineDebug, "engine-debug", false, "use engine debug output")
+	flag.BoolVar(&stateDebug, "state-debug", 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.Parse()
+
+	logg.Infof("start command", "dbdir", dbDir, "resourcedir", resourceDir,  "outputsize", size, "sessionId", sessionId)
+
+	ctx := context.Background()
+	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
+	}
+	if engineDebug {
+		cfg.EngineDebug = true
+	}
+
+	rs, err := getResource(resourceDir, ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	err = ensureDbDir(dbDir)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	userdataStore := getUserdataDb(dbDir, 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)
+	}
+
+	hl, err := getHandler(flagParser, dbResource, userdataStore)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	stateStore, err := getStateStore(dbDir, 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 {
+			fmt.Errorf("error in process: %v", err)
+			os.Exit(1)
+		}
+		rqs, err = sh.Output(rqs)
+		if err != nil {
+			fmt.Errorf("error in output: %v", err)
+			os.Exit(1)
+		}
+		rqs, err = sh.Reset(rqs)
+		if err != nil {
+			fmt.Errorf("error in reset: %v", err)
+			os.Exit(1)
+		}
+		fmt.Println("")
+		_, err = fmt.Scanln(&rqs.Input)
+		if err != nil {
+		fmt.Errorf("error in input: %v", err)
+			os.Exit(1)
+		}
+	}
+}

cmd/http/main.go

@@ -0,0 +1,218 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"net/http"
+	"os"
+	"os/signal"
+	"path"
+	"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.grassecon.net/urdt/ussd/internal/handlers/ussd"
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+	httpserver "git.grassecon.net/urdt/ussd/internal/http"
+)
+
+var (
+	logg = logging.NewVanilla()
+	scriptDir = path.Join("services", "registration")
+)
+
+func getFlags(fp string, debug bool) (*asm.FlagParser, error) {
+	flagParser := asm.NewFlagParser().WithDebug()
+	_, err := flagParser.Load(fp)
+	if err != nil {
+		return nil, err
+	}
+	return flagParser, nil
+}
+
+func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, userdataStore db.Db) (*ussd.Handlers, error) {
+
+	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
+}
+
+
+func main() {
+	var dbDir string
+	var resourceDir string
+	var size uint
+	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.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.Parse()
+
+	logg.Infof("start command", "dbdir", dbDir, "resourcedir", resourceDir,  "outputsize", size)
+
+	ctx := context.Background()
+	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
+	}
+	if engineDebug {
+		cfg.EngineDebug = true
+	}
+
+	rs, err := getResource(resourceDir, ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	err = ensureDbDir(dbDir)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	userdataStore := getUserdataDb(dbDir, 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)
+	}
+
+	hl, err := getHandler(flagParser, dbResource, userdataStore)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+
+	stateStore, err := getStateStore(dbDir, ctx)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, err.Error())
+		os.Exit(1)
+	}
+	defer stateStore.Close()
+
+	rp := &httpserver.DefaultRequestParser{}
+	//sh := httpserver.NewSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl.Init)
+	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))),
+		Handler: sh,
+	}
+	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/main.go

@@ -34,10 +34,11 @@ func getParser(fp string, debug bool) (*asm.FlagParser, error) {
 
 func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, pe *persist.Persister, userdataStore db.Db) (*ussd.Handlers, error) {
 
-	ussdHandlers, err := ussd.NewHandlers(appFlags, pe, userdataStore)
+	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)
@@ -74,10 +75,18 @@ func getHandler(appFlags *asm.FlagParser, rs *resource.DbResource, pe *persist.P
 	return ussdHandlers, nil
 }
 
-func getPersister(dbDir string, ctx context.Context) (*persist.Persister, error) {
+func ensureDbDir(dbDir string) error {
 	err := os.MkdirAll(dbDir, 0700)
 	if err != nil {
-		return nil, fmt.Errorf("state dir create exited with error: %v\n", err)
+		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")
@@ -112,18 +121,16 @@ func getEngine(cfg engine.Config, rs resource.Resource, pr *persist.Persister) *
 
 func main() {
 	var dbDir string
-	var resourceDir string
 	var size uint
 	var sessionId string
 	var debug bool
 	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.BoolVar(&debug, "d", false, "use engine debug output")
 	flag.UintVar(&size, "s", 160, "max size of output")
 	flag.Parse()
 
-	logg.Infof("start command", "dbdir", dbDir, "resourcedir", resourceDir, "outputsize", size)
+	logg.Infof("start command", "dbdir", dbDir, "outputsize", size)
 
 	ctx := context.Background()
 	ctx = context.WithValue(ctx, "SessionId", sessionId)
@@ -141,13 +148,13 @@ func main() {
 		FlagCount:  uint32(16),
 	}
 
-	rs, err := getResource(resourceDir, ctx)
+	rs, err := getResource(scriptDir, ctx)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	pr, err := getPersister(dbDir, ctx)
+	pe, err := getPersister(dbDir, ctx)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
@@ -161,16 +168,17 @@ func main() {
 
 	dbResource, ok := rs.(*resource.DbResource)
 	if !ok {
+		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	hl, err := getHandler(flagParser, dbResource, pr, store)
+	hl, err := getHandler(flagParser, dbResource, pe, store)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, err.Error())
 		os.Exit(1)
 	}
 
-	en := getEngine(cfg, rs, pr)
+	en := getEngine(cfg, rs, pe)
 	en = en.WithFirst(hl.Init)
 	if debug {
 		en = en.WithDebug(nil)

go.mod

@@ -2,6 +2,12 @@ module git.grassecon.net/urdt/ussd
 
 go 1.22.6
 
+require (
+	git.defalsify.org/vise.git v0.1.0-rc.3.0.20240911231817-0d23e0dbb57f
+	github.com/alecthomas/assert/v2 v2.2.2
+	gopkg.in/leonelquinteros/gotext.v1 v1.3.1
+)
+
 require (
 	github.com/alecthomas/participle/v2 v2.0.0 // indirect
 	github.com/alecthomas/repr v0.2.0 // indirect
@@ -17,9 +23,3 @@ require (
 	github.com/x448/float16 v0.8.4 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
-
-require (
-	git.defalsify.org/vise.git v0.1.0-rc.1.0.20240906020635-400f69d01a89
-	github.com/alecthomas/assert/v2 v2.2.2
-	gopkg.in/leonelquinteros/gotext.v1 v1.3.1
-)

go.sum

@@ -1,5 +1,5 @@
-git.defalsify.org/vise.git v0.1.0-rc.1.0.20240906020635-400f69d01a89 h1:YyQODhMwSM5YD9yKHM5jCF0HC0RQtE3MkVXcTnOhXJo=
-git.defalsify.org/vise.git v0.1.0-rc.1.0.20240906020635-400f69d01a89/go.mod h1:JDguWmcoWBdsnpw7PUjVZAEpdC/ubBmjdUBy3tjP63M=
+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=
 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=

internal/handlers/base.go

@@ -0,0 +1,102 @@
+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",  rqs)
+
+	rqs.Storage, err = f.provider.Get(rqs.Config.SessionId)
+	if err != nil {
+		logg.ErrorCtxf(rqs.Ctx, "", "storage error", "err", 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 {
+		return rqs, ErrEngineType
+	}
+	en = en.WithFirst(f.hn.Init)
+	if rqs.Config.EngineDebug {
+		en = en.WithDebug(nil)
+	}
+	rqs.Engine = en
+
+	r, err = rqs.Engine.Init(rqs.Ctx)
+	if err != nil {
+		return rqs, err
+	}
+
+	if r && len(rqs.Input) > 0 {
+		r, err = rqs.Engine.Exec(rqs.Ctx, rqs.Input)
+	}
+	if err != nil {
+		return rqs, err
+	}
+
+	rqs.Continue = r 
+	return rqs, nil
+}
+
+func(f *BaseSessionHandler) Output(rqs RequestSession) (RequestSession,  error) {
+	var err error
+	_, err = rqs.Engine.WriteResult(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/single.go

@@ -0,0 +1,56 @@
+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
+}
+
+type engineMaker func(cfg engine.Config, rs resource.Resource, pr *persist.Persister) engine.Engine
+
+// 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/menuhandler.go

@@ -66,21 +66,17 @@ type Handlers struct {
 	accountService server.AccountServiceInterface
 }
 
-func NewHandlers(parser *asm.FlagParser, pe *persist.Persister, userdataStore db.Db) (*Handlers, error) {
-	userDb := utils.UserDataStore{
-		Store: userdataStore,
-	}
-	if pe == nil {
-		return nil, fmt.Errorf("cannot create handler with nil persister")
-	}
+func NewHandlers(appFlags *asm.FlagParser, userdataStore db.Db) (*Handlers, error) {
 	if userdataStore == nil {
 		return nil, fmt.Errorf("cannot create handler with nil userdata store")
 	}
+	userDb := &utils.UserDataStore{
+		Db: userdataStore,
+	}
 	h := &Handlers{
-		pe:             pe,
-		userdataStore:  userDb,
-		flagManager:    parser,
-		accountService: &server.AccountService{},
+		userdataStore:      userDb,
+		flagManager:        appFlags,
+		accountService:     &server.AccountService{},
 	}
 	return h, nil
 }
@@ -94,6 +90,14 @@ func isValidPIN(pin string) bool {
 	return match
 }
 
+func (h *Handlers) WithPersister(pe *persist.Persister) *Handlers {
+	if h.pe != nil {
+		panic("persister already set")
+	}
+	h.pe = pe
+	return h
+}
+
 func (h *Handlers) Init(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	var r resource.Result
 
@@ -254,7 +258,7 @@ func (h *Handlers) VerifyPin(ctx context.Context, sym string, input []byte) (res
 	}
 
 	//AccountPin, _ := utils.ReadEntry(ctx, h.userdataStore, sessionId, utils.DATA_ACCOUNT_PIN)
-	store := h.userdataStore.(utils.UserDataStore)
+	store := h.userdataStore
 	AccountPin, err := store.ReadEntry(ctx, sessionId, utils.DATA_ACCOUNT_PIN)
 	if err != nil {
 		return res, err
@@ -523,7 +527,7 @@ func (h *Handlers) CheckAccountStatus(ctx context.Context, sym string, input []b
 	if !ok {
 		return res, fmt.Errorf("missing session")
 	}
-	store := h.userdataStore.(utils.UserDataStore)
+	store := h.userdataStore
 	trackingId, err := store.ReadEntry(ctx, sessionId, utils.DATA_TRACKING_ID)
 	if err != nil {
 		return res, err
@@ -610,7 +614,7 @@ func (h *Handlers) CheckBalance(ctx context.Context, sym string, input []byte) (
 		return res, fmt.Errorf("missing session")
 	}
 
-	store := h.userdataStore.(utils.UserDataStore)
+	store := h.userdataStore
 	publicKey, err := store.ReadEntry(ctx, sessionId, utils.DATA_PUBLIC_KEY)
 	if err != nil {
 		return res, err
@@ -862,7 +866,7 @@ func (h *Handlers) QuitWithBalance(ctx context.Context, sym string, input []byte
 	l := gotext.NewLocale(translationDir, code)
 	l.AddDomain("default")
 
-	store := h.userdataStore.(utils.UserDataStore)
+	store := h.userdataStore
 	publicKey, err := store.ReadEntry(ctx, sessionId, utils.DATA_PUBLIC_KEY)
 	if err != nil {
 		return res, err

internal/handlers/ussd/mocks/userdbmock.go

@@ -3,28 +3,16 @@ package mocks
 import (
 	"context"
 
-	"git.defalsify.org/vise.git/lang"
+	"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) SetPrefix(prefix uint8) {
-	m.Called(prefix)
-}
-
-func (m *MockUserDataStore) SetSession(sessionId string) {
-	m.Called(sessionId)
-}
-
-func (m *MockUserDataStore) Get(ctx context.Context, key []byte) ([]byte, error) {
-	args := m.Called(ctx, key)
-	return args.Get(0).([]byte), args.Error(1)
-}
-
 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)
@@ -34,36 +22,3 @@ func (m *MockUserDataStore) WriteEntry(ctx context.Context, sessionId string, ty
 	args := m.Called(ctx, sessionId, typ, value)
 	return args.Error(0)
 }
-
-func (m *MockUserDataStore) Prefix() uint8 {
-	args := m.Called()
-	return args.Get(0).(uint8)
-}
-
-func (m *MockUserDataStore) Safe() bool {
-	args := m.Called()
-	return args.Get(0).(bool)
-}
-
-func (m *MockUserDataStore) SetLanguage(language *lang.Language) {
-	m.Called(language)
-}
-
-func (m *MockUserDataStore) SetLock(uint8, bool) error {
-	args := m.Called()
-	return args.Error(0)
-}
-
-func (m *MockUserDataStore) Connect(ctx context.Context, connectionStr string) error {
-	args := m.Called(ctx, connectionStr)
-	return args.Error(0)
-}
-
-func (m *MockUserDataStore) Put(ctx context.Context, key, value []byte) error {
-	args := m.Called(ctx, key, value)
-	return args.Error(0)
-}
-func (m *MockUserDataStore) Close() error {
-	args := m.Called(nil)
-	return args.Error(0)
-}

internal/http/at_session_handler.go

@@ -0,0 +1,93 @@
+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)
+	}
+	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 handlers.ErrStorage:
+		code = 500
+	case handlers.ErrEngineInit:
+		code = 500
+	case handlers.ErrEngineExec:
+		code = 500
+	default:
+		code = 200
+	}
+
+	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.WriteResult(rqs.Ctx, rqs.Writer)
+	return rqs, err
+}

internal/http/server.go

@@ -0,0 +1,122 @@
+package http
+
+import (
+	"io/ioutil"
+	"net/http"
+	"strconv"
+
+	"git.defalsify.org/vise.git/logging"
+
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+)
+
+var (
+	logg = logging.NewVanilla().WithDomain("httpserver")
+)
+
+type DefaultRequestParser struct {
+}
+
+
+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 "", handlers.ErrSessionMissing
+	}
+	return v, nil
+}
+
+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
+	}
+	return v, nil
+}
+
+type SessionHandler struct {
+	handlers.RequestHandler
+}
+
+func ToSessionHandler(h handlers.RequestHandler) *SessionHandler {
+	return &SessionHandler{
+		RequestHandler: h,
+	}
+}
+
+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)
+	}
+	return 
+}
+
+func(f *SessionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	var code int
+	var err error
+	var perr error
+
+	rqs := handlers.RequestSession{
+		Ctx: req.Context(),
+		Writer: w,
+	}
+
+	rp := f.GetRequestParser()
+	cfg := f.GetConfig()
+	cfg.SessionId, err = rp.GetSessionId(req)
+	if err != nil {
+		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
+	}
+
+	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 code != 200 {
+		f.writeError(w, 500, err)
+		return
+	}
+
+	w.WriteHeader(200)
+	w.Header().Set("Content-Type", "text/plain")
+	rqs, err = f.Output(rqs)
+	rqs, perr = f.Reset(rqs)
+	if err != nil {
+		f.writeError(w, 500, err)
+		return
+	}
+	if perr != nil {
+		f.writeError(w, 500, perr)
+		return
+	}
+}

internal/storage/storage.go

@@ -0,0 +1,44 @@
+package storage
+
+import (
+	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/persist"
+)
+
+type Storage struct {
+	Persister *persist.Persister
+	UserdataDb db.Db	
+}
+
+type StorageProvider interface {
+	Get(sessionId string) (Storage, error)
+	Put(sessionId string, storage Storage) error
+	Close() error
+}
+
+type SimpleStorageProvider struct {
+	Storage
+}
+
+func NewSimpleStorageProvider(stateStore db.Db, userdataStore db.Db) StorageProvider {
+	pe := persist.NewPersister(stateStore)
+	pe = pe.WithFlush()
+	return &SimpleStorageProvider{
+		Storage: Storage{
+			Persister: pe,
+			UserdataDb: userdataStore,
+		},
+	}
+}
+
+func (p *SimpleStorageProvider) Get(sessionId string) (Storage, error) {
+	return p.Storage, nil
+}
+
+func (p *SimpleStorageProvider) Put(sessionId string, storage Storage) error {
+	return nil
+}
+
+func (p *SimpleStorageProvider) Close() error {
+	return p.Storage.UserdataDb.Close()
+}

internal/utils/account_utils.go

@@ -1,44 +0,0 @@
-package utils
-
-import (
-	"context"
-	"encoding/json"
-
-	"git.defalsify.org/vise.git/db"
-)
-
-type AccountFileHandler struct {
-	store db.Db
-}
-
-func NewAccountFileHandler(store db.Db) *AccountFileHandler {
-	return &AccountFileHandler{
-		store: store,
-	}
-}
-
-func (afh *AccountFileHandler) ReadAccountData(ctx context.Context, sessionId string) (map[string]string, error) {
-	var accountData map[string]string
-	jsonData, err := ReadEntry(ctx, afh.store, sessionId, DATA_ACCOUNT)
-	if err != nil {
-		return nil,err
-	}
-	err = json.Unmarshal(jsonData, &accountData)
-	if err != nil {
-		return nil, err
-	}
-	return accountData, nil
-}
-
-func (afh *AccountFileHandler) WriteAccountData(ctx context.Context, sessionId string, accountData map[string]string) error {
-	_, err := json.Marshal(accountData)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (afh *AccountFileHandler) EnsureFileExists() error {
-	return nil
-}

internal/utils/db.go

@@ -39,7 +39,6 @@ func PackKey(typ DataTyp, data []byte) []byte {
 }
 
 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))

internal/utils/userStore.go

@@ -4,78 +4,29 @@ import (
 	"context"
 
 	"git.defalsify.org/vise.git/db"
-	"git.defalsify.org/vise.git/lang"
 )
 
 type DataStore interface {
-	SetPrefix(prefix uint8)
-	SetSession(sessionId string)
-	Get(ctx context.Context, key []byte) ([]byte, error)
+	db.Db
 	ReadEntry(ctx context.Context, sessionId string, typ DataTyp) ([]byte, error)
 	WriteEntry(ctx context.Context, sessionId string, typ DataTyp, value []byte) error
-	Connect(ctx context.Context, connStr string) error
-	SetLanguage(*lang.Language)
-	Close() error
-	Prefix() uint8
-	Put(ctx context.Context, key []byte, val []byte) error
-	Safe() bool
-	SetLock(typ uint8, locked bool) error
 }
 
 type UserDataStore struct {
-	Store db.Db
-}
-
-func (store UserDataStore) SetPrefix(prefix uint8) {
-	store.Store.SetPrefix(prefix)
-}
-
-func (store UserDataStore) SetLanguage(lang *lang.Language) {
-	store.Store.SetLanguage(lang)
-}
-
-func (store UserDataStore) SetLock(typ uint8, locked bool) error {
-	return store.Store.SetLock(typ, locked)
-}
-func (store UserDataStore) Safe() bool {
-	return store.Store.Safe()
-}
-
-func (store UserDataStore) Put(ctx context.Context, key []byte, val []byte) error {
-	return store.Store.Put(ctx, key, val)
-}
-
-func (store UserDataStore) Connect(ctx context.Context, connectionStr string) error {
-	return store.Store.Connect(ctx, connectionStr)
-}
-
-func (store UserDataStore) Close() error {
-	return store.Store.Close()
-}
-
-func (store UserDataStore) Prefix() uint8 {
-	return store.Store.Prefix()
-}
-
-func (store UserDataStore) SetSession(sessionId string) {
-	store.Store.SetSession(sessionId)
-}
-
-func (store UserDataStore) Get(ctx context.Context, key []byte) ([]byte, error) {
-	return store.Store.Get(ctx, key)
+	db.Db
 }
 
 // ReadEntry retrieves an entry from the store based on the provided parameters.
-func (store UserDataStore) ReadEntry(ctx context.Context, sessionId string, typ DataTyp) ([]byte, error) {
-	store.Store.SetPrefix(db.DATATYPE_USERDATA)
-	store.Store.SetSession(sessionId)
+func (store *UserDataStore) ReadEntry(ctx context.Context, sessionId string, typ DataTyp) ([]byte, error) {
+	store.SetPrefix(db.DATATYPE_USERDATA)
+	store.SetSession(sessionId)
 	k := PackKey(typ, []byte(sessionId))
 	return store.Get(ctx, k)
 }
 
-func (store UserDataStore) WriteEntry(ctx context.Context, sessionId string, typ DataTyp, value []byte) error {
-	store.Store.SetPrefix(db.DATATYPE_USERDATA)
-	store.Store.SetSession(sessionId)
+func (store *UserDataStore) WriteEntry(ctx context.Context, sessionId string, typ DataTyp, value []byte) error {
+	store.SetPrefix(db.DATATYPE_USERDATA)
+	store.SetSession(sessionId)
 	k := PackKey(typ, []byte(sessionId))
-	return store.Store.Put(ctx, k, value)
+	return store.Put(ctx, k, value)
 }