WIP Factor out request, errors

cmd/africastalking/main.go

@@ -1,163 +0,0 @@
-package main
-
-import (
-	"context"
-	"flag"
-	"fmt"
-	"net/http"
-	"os"
-	"os/signal"
-	"path"
-	"strconv"
-	"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/http/at"
-	"git.grassecon.net/urdt/ussd/internal/storage"
-	"git.grassecon.net/urdt/ussd/remote"
-)
-
-var (
-	logg          = logging.NewVanilla().WithDomain("AfricasTalking").WithContextKey("at-session-id")
-	scriptDir     = path.Join("services", "registration")
-	build         = "dev"
-	menuSeparator = ": "
-)
-
-func init() {
-	initializers.LoadEnvVariables()
-}
-
-func main() {
-	config.LoadConfig()
-
-	var connStr string
-	var resourceDir string
-	var size uint
-	var database string
-	var engineDebug bool
-	var host string
-	var port uint
-	var err error
-
-	flag.StringVar(&resourceDir, "resourcedir", path.Join("services", "registration"), "resource dir")
-	flag.StringVar(&connStr, "c", "", "connection string")
-	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()
-
-	if connStr != "" {
-		connStr = config.DbConn
-	}
-	connData, err := storage.ToConnData(config.DbConn)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "connstr err: %v", err)
-		os.Exit(1)
-	}
-
-	logg.Infof("start command", "build", build, "conn", connData, "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),
-		MenuSeparator: menuSeparator,
-	}
-
-	if engineDebug {
-		cfg.EngineDebug = true
-	}
-
-	menuStorageService := storage.NewMenuStorageService(connData, resourceDir)
-	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)
-	}
-
-	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)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, err.Error())
-		os.Exit(1)
-	}
-	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 := &at.ATRequestParser{
-		Context: ctx,
-	}
-	bsh := handlers.NewBaseSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl)
-	sh := at.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

@@ -18,6 +18,7 @@ import (
 	"git.grassecon.net/urdt/ussd/internal/handlers"
 	"git.grassecon.net/urdt/ussd/internal/storage"
 	"git.grassecon.net/urdt/ussd/remote"
+	"git.grassecon.net/urdt/ussd/request"
 )
 
 var (
@@ -138,7 +139,7 @@ func main() {
 	}
 	sh := handlers.NewBaseSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl)
 	cfg.SessionId = sessionId
-	rqs := handlers.RequestSession{
+	rqs := request.RequestSession{
 		Ctx:    ctx,
 		Writer: os.Stdout,
 		Config: cfg,

cmd/http/main.go

@@ -21,6 +21,7 @@ import (
 	httpserver "git.grassecon.net/urdt/ussd/internal/http"
 	"git.grassecon.net/urdt/ussd/internal/storage"
 	"git.grassecon.net/urdt/ussd/remote"
+	"git.grassecon.net/urdt/ussd/request"
 )
 
 var (
@@ -123,7 +124,7 @@ func main() {
 
 	rp := &httpserver.DefaultRequestParser{}
 	bsh := handlers.NewBaseSessionHandler(cfg, rs, stateStore, userdataStore, rp, hl)
-	sh := httpserver.ToSessionHandler(bsh)
+	sh := request.ToSessionHandler(bsh)
 	s := &http.Server{
 		Addr:    fmt.Sprintf("%s:%s", host, strconv.Itoa(int(port))),
 		Handler: sh,

common/storage.go

@@ -11,6 +11,10 @@ import (
 	dbstorage "git.grassecon.net/urdt/ussd/internal/storage/db"
 )
 
+var (
+	ToConnData = storage.ToConnData
+)
+
 func StoreToDb(store *UserDataStore) db.Db {
 	return store.Db
 }
@@ -36,6 +40,12 @@ func NewStorageService(conn storage.ConnData) (*StorageService, error) {
 	return svc, nil
 }
 
+// TODO: simplify enable poresource, conndata instead
+func(ss *StorageService) SetResourceDir(resourceDir string) error {
+	ss.svc = ss.svc.WithResourceDir(resourceDir)
+	return nil
+}
+
 func(ss *StorageService) GetPersister(ctx context.Context) (*persist.Persister, error) {
 	return ss.svc.GetPersister(ctx)
 }

errors/errors.go

@@ -0,0 +1,15 @@
+package common
+
+import (
+	"git.grassecon.net/urdt/ussd/internal/handlers"
+)
+
+var (
+	ErrInvalidRequest = handlers.ErrInvalidRequest
+	ErrSessionMissing = handlers.ErrSessionMissing
+	ErrInvalidInput = handlers.ErrInvalidInput
+	ErrStorage = handlers.ErrStorage
+	ErrEngineType = handlers.ErrEngineType
+	ErrEngineInit = handlers.ErrEngineInit
+	ErrEngineExec = handlers.ErrEngineExec
+)

internal/handlers/base.go

@@ -6,19 +6,20 @@ import (
 	"git.defalsify.org/vise.git/persist"
 	"git.defalsify.org/vise.git/resource"
 
+	"git.grassecon.net/urdt/ussd/request"
 	"git.grassecon.net/urdt/ussd/internal/handlers/ussd"
 	"git.grassecon.net/urdt/ussd/internal/storage"
 )
 
 type BaseSessionHandler struct {
 	cfgTemplate engine.Config
-	rp RequestParser
+	rp request.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 {
+func NewBaseSessionHandler(cfg engine.Config, rs resource.Resource, stateDb db.Db, userdataDb db.Db, rp request.RequestParser, hn *ussd.Handlers) *BaseSessionHandler {
 	return &BaseSessionHandler{
 		cfgTemplate: cfg,
 		rs: rs,
@@ -41,7 +42,7 @@ func(f *BaseSessionHandler) GetEngine(cfg engine.Config, rs resource.Resource, p
 	return en
 }
 
-func(f *BaseSessionHandler) Process(rqs RequestSession) (RequestSession, error) {
+func(f *BaseSessionHandler) Process(rqs request.RequestSession) (request.RequestSession, error) {
 	var r bool
 	var err error
 	var ok bool
@@ -88,13 +89,13 @@ func(f *BaseSessionHandler) Process(rqs RequestSession) (RequestSession, error)
 	return rqs, nil
 }
 
-func(f *BaseSessionHandler) Output(rqs RequestSession) (RequestSession,  error) {
+func(f *BaseSessionHandler) Output(rqs request.RequestSession) (request.RequestSession,  error) {
 	var err error
 	_, err = rqs.Engine.Flush(rqs.Ctx, rqs.Writer)
 	return rqs, err
 }
 
-func(f *BaseSessionHandler) Reset(rqs RequestSession) (RequestSession, error) {
+func(f *BaseSessionHandler) Reset(rqs request.RequestSession) (request.RequestSession, error) {
 	defer f.provider.Put(rqs.Config.SessionId, rqs.Storage)
 	return rqs, rqs.Engine.Finish()
 }
@@ -103,6 +104,6 @@ func(f *BaseSessionHandler) GetConfig() engine.Config {
 	return f.cfgTemplate
 }
 
-func(f *BaseSessionHandler) GetRequestParser() RequestParser {
+func(f *BaseSessionHandler) GetRequestParser() request.RequestParser {
 	return f.rp
 }

internal/handlers/single.go

@@ -1,20 +1,9 @@
 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 (
@@ -27,28 +16,7 @@ var (
 	ErrEngineExec = errors.New("engine exec fail")
 )
 
-type RequestSession struct {
+var (
-	Ctx context.Context
+	logg = logging.NewVanilla().WithDomain("handlers")
-	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/http/at/parse.go

@@ -1,121 +0,0 @@
-package at
-
-import (
-	"bytes"
-	"context"
-	"encoding/json"
-	"fmt"
-	"io"
-	"net/http"
-	"net/url"
-	"strings"
-
-	"git.grassecon.net/urdt/ussd/common"
-	"git.grassecon.net/urdt/ussd/internal/handlers"
-)
-
-type ATRequestParser struct {
-	Context context.Context
-}
-
-func (arp *ATRequestParser) GetSessionId(rq any) (string, error) {
-	rqv, ok := rq.(*http.Request)
-	if !ok {
-		logg.Warnf("got an invalid request", "req", rq)
-		return "", handlers.ErrInvalidRequest
-	}
-
-	// Capture body (if any) for logging
-	body, err := io.ReadAll(rqv.Body)
-	if err != nil {
-		logg.Warnf("failed to read request body", "err", 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 {
-		logg.Warnf("failed to marshal request body", "err", err)
-	} else {
-		decodedStr := string(logBytes)
-		sessionId, err := extractATSessionId(decodedStr)
-		if err != nil {
-			context.WithValue(arp.Context, "at-session-id", sessionId)
-		}
-		logg.Debugf("Received request:", decodedStr)
-	}
-
-	if err := rqv.ParseForm(); err != nil {
-		logg.Warnf("failed to parse form data", "err", err)
-		return "", fmt.Errorf("failed to parse form data: %v", err)
-	}
-
-	phoneNumber := rqv.FormValue("phoneNumber")
-	if phoneNumber == "" {
-		return "", fmt.Errorf("no phone number found")
-	}
-
-	formattedNumber, err := common.FormatPhoneNumber(phoneNumber)
-	if err != nil {
-		logg.Warnf("failed to format phone number", "err", err)
-		return "", fmt.Errorf("failed to format number")
-	}
-
-	return formattedNumber, 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 parseQueryParams(query string) map[string]string {
-	params := make(map[string]string)
-
-	queryParams := strings.Split(query, "&")
-	for _, param := range queryParams {
-		// Split each key-value pair by '='
-		parts := strings.SplitN(param, "=", 2)
-		if len(parts) == 2 {
-			params[parts[0]] = parts[1]
-		}
-	}
-	return params
-}
-
-func extractATSessionId(decodedStr string) (string, error) {
-	var data map[string]string
-	err := json.Unmarshal([]byte(decodedStr), &data)
-
-	if err != nil {
-		logg.Errorf("Error unmarshalling JSON: %v", err)
-		return "", nil
-	}
-	decodedBody, err := url.QueryUnescape(data["body"])
-	if err != nil {
-		logg.Errorf("Error URL-decoding body: %v", err)
-		return "", nil
-	}
-	params := parseQueryParams(decodedBody)
-
-	sessionId := params["sessionId"]
-	return sessionId, nil
-
-}

internal/http/at/server.go

@@ -1,98 +0,0 @@
-package at
-
-import (
-	"io"
-	"net/http"
-
-	"git.defalsify.org/vise.git/logging"
-	"git.grassecon.net/urdt/ussd/internal/handlers"
-	httpserver "git.grassecon.net/urdt/ussd/internal/http"
-)
-
-var (
-	logg = logging.NewVanilla().WithDomain("atserver")
-)
-
-type ATSessionHandler struct {
-	*httpserver.SessionHandler
-}
-
-func NewATSessionHandler(h handlers.RequestHandler) *ATSessionHandler {
-	return &ATSessionHandler{
-		SessionHandler: httpserver.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/at/server_test.go

@@ -1,234 +0,0 @@
-package at
-
-import (
-	"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"
-)
-
-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)
-			}
-		})
-	}
-}
-
-

internal/http/server.go

@@ -7,22 +7,16 @@ import (
 	"git.defalsify.org/vise.git/logging"
 
 	"git.grassecon.net/urdt/ussd/internal/handlers"
+	"git.grassecon.net/urdt/ussd/request"
 )
 
 var (
 	logg = logging.NewVanilla().WithDomain("httpserver")
 )
 
-type SessionHandler struct {
+type SessionHandler request.SessionHandler
-	handlers.RequestHandler
-}
-
-func ToSessionHandler(h handlers.RequestHandler) *SessionHandler {
-	return &SessionHandler{
-		RequestHandler: h,
-	}
-}
 
+// TODO: duplicated
 func (f *SessionHandler) WriteError(w http.ResponseWriter, code int, err error) {
 	s := err.Error()
 	w.Header().Set("Content-Length", strconv.Itoa(len(s)))
@@ -39,7 +33,7 @@ func (f *SessionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 	var err error
 	var perr error
 
-	rqs := handlers.RequestSession{
+	rqs := request.RequestSession{
 		Ctx:    req.Context(),
 		Writer: w,
 	}

internal/http/server_test.go

@@ -10,6 +10,7 @@ import (
 	"git.defalsify.org/vise.git/engine"
 	"git.grassecon.net/urdt/ussd/internal/handlers"
 	"git.grassecon.net/urdt/ussd/internal/testutil/mocks/httpmocks"
+	"git.grassecon.net/urdt/ussd/request"
 )
 
 // invalidRequestType is a custom type to test invalid request scenarios
@@ -80,16 +81,16 @@ func TestSessionHandler_ServeHTTP(t *testing.T) {
 			}
 
 			mockRequestHandler := &httpmocks.MockRequestHandler{
-				ProcessFunc: func(rs handlers.RequestSession) (handlers.RequestSession, error) {
+				ProcessFunc: func(rs request.RequestSession) (request.RequestSession, error) {
 					return rs, tt.processErr
 				},
-				OutputFunc: func(rs handlers.RequestSession) (handlers.RequestSession, error) {
+				OutputFunc: func(rs request.RequestSession) (request.RequestSession, error) {
 					return rs, tt.outputErr
 				},
-				ResetFunc: func(rs handlers.RequestSession) (handlers.RequestSession, error) {
+				ResetFunc: func(rs request.RequestSession) (request.RequestSession, error) {
 					return rs, tt.resetErr
 				},
-				GetRequestParserFunc: func() handlers.RequestParser {
+				GetRequestParserFunc: func() request.RequestParser {
 					return mockRequestParser
 				},
 				GetConfigFunc: func() engine.Config {
@@ -97,7 +98,7 @@ func TestSessionHandler_ServeHTTP(t *testing.T) {
 				},
 			}
 
-			sessionHandler := ToSessionHandler(mockRequestHandler)
+			sessionHandler := request.ToSessionHandler(mockRequestHandler)
 
 			req := httptest.NewRequest(http.MethodPost, "/", bytes.NewBuffer(tt.input))
 			req.Header.Set("X-Vise-Session", tt.sessionID)

internal/storage/storageservice.go

@@ -40,6 +40,11 @@ func NewMenuStorageService(conn ConnData, resourceDir string) *MenuStorageServic
 	}
 }
 
+func (ms *MenuStorageService) WithResourceDir(resourceDir string) *MenuStorageService {
+	ms.resourceDir = resourceDir
+	return ms
+}
+
 func (ms *MenuStorageService) getOrCreateDb(ctx context.Context, existingDb db.Db, section string) (db.Db, error) {
 	var newDb db.Db
 	var err error

internal/testutil/mocks/httpmocks/requesthandlermock.go

@@ -4,21 +4,21 @@ 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"
+	"git.grassecon.net/urdt/ussd/request"
 )
 
-// MockRequestHandler implements handlers.RequestHandler interface for testing
+// MockRequestHandler implements request.RequestHandler interface for testing
 type MockRequestHandler struct {
-	ProcessFunc          func(handlers.RequestSession) (handlers.RequestSession, error)
+	ProcessFunc          func(request.RequestSession) (request.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)
+	OutputFunc           func(rs request.RequestSession) (request.RequestSession, error)
-	ResetFunc            func(rs handlers.RequestSession) (handlers.RequestSession, error)
+	ResetFunc            func(rs request.RequestSession) (request.RequestSession, error)
 	ShutdownFunc         func()
-	GetRequestParserFunc func() handlers.RequestParser
+	GetRequestParserFunc func() request.RequestParser
 }
 
-func (m *MockRequestHandler) Process(rqs handlers.RequestSession) (handlers.RequestSession, error) {
+func (m *MockRequestHandler) Process(rqs request.RequestSession) (request.RequestSession, error) {
 	return m.ProcessFunc(rqs)
 }
 
@@ -30,11 +30,11 @@ func (m *MockRequestHandler) GetEngine(cfg engine.Config, rs resource.Resource,
 	return m.GetEngineFunc(cfg, rs, pe)
 }
 
-func (m *MockRequestHandler) Output(rs handlers.RequestSession) (handlers.RequestSession, error) {
+func (m *MockRequestHandler) Output(rs request.RequestSession) (request.RequestSession, error) {
 	return m.OutputFunc(rs)
 }
 
-func (m *MockRequestHandler) Reset(rs handlers.RequestSession) (handlers.RequestSession, error) {
+func (m *MockRequestHandler) Reset(rs request.RequestSession) (request.RequestSession, error) {
 	return m.ResetFunc(rs)
 }
 
@@ -42,6 +42,6 @@ func (m *MockRequestHandler) Shutdown() {
 	m.ShutdownFunc()
 }
 
-func (m *MockRequestHandler) GetRequestParser() handlers.RequestParser {
+func (m *MockRequestHandler) GetRequestParser() request.RequestParser {
 	return m.GetRequestParserFunc()
 }

request/request.go

@@ -0,0 +1,70 @@
+package request
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"strconv"
+
+	"git.defalsify.org/vise.git/resource"
+	"git.defalsify.org/vise.git/persist"
+	"git.defalsify.org/vise.git/engine"
+	"git.defalsify.org/vise.git/logging"
+	"git.grassecon.net/urdt/ussd/internal/storage"
+)
+
+var (
+	logg = logging.NewVanilla().WithDomain("visedriver.request")
+)
+
+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()
+}
+type SessionHandler struct {
+	RequestHandler
+}
+
+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(s))
+	if err != nil {
+		logg.Errorf("error writing error!!", "err", err, "olderr", s)
+		w.WriteHeader(500)
+	}
+}
+
+func (f *SessionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	f.WriteError(w, 500, fmt.Errorf("not implemented"))
+}
+
+func ToSessionHandler(h RequestHandler) *SessionHandler {
+	return &SessionHandler{
+		RequestHandler: h,
+	}
+}