.gitignore

@@ -4,3 +4,5 @@ go.work*
 **/*/*.bin
 **/*/.state/
 cmd/.state/
+id_*
+*.gdbm

go.mod

@@ -3,7 +3,7 @@ module git.grassecon.net/urdt/ussd
 go 1.22.6
 
 require (
-	git.defalsify.org/vise.git v0.1.0-rc.3.0.20240923162317-c20d557a3dbb
+	git.defalsify.org/vise.git v0.1.0-rc.3.0.20240926120105-89b0529cf7ac
 	github.com/alecthomas/assert/v2 v2.2.2
 	github.com/peteole/testdata-loader v0.3.0
 	gopkg.in/leonelquinteros/gotext.v1 v1.3.1

go.sum

@@ -1,5 +1,7 @@
 git.defalsify.org/vise.git v0.1.0-rc.3.0.20240923162317-c20d557a3dbb h1:6P4kxihcwMjDKzvUFC6t2zGNb7MDW+l/ACGlSAN1N8Y=
 git.defalsify.org/vise.git v0.1.0-rc.3.0.20240923162317-c20d557a3dbb/go.mod h1:JDguWmcoWBdsnpw7PUjVZAEpdC/ubBmjdUBy3tjP63M=
+git.defalsify.org/vise.git v0.1.0-rc.3.0.20240926120105-89b0529cf7ac h1:D4KI22KWXT8S66sHIjWhTBX6SXRfnd7j8VErq3PPbok=
+git.defalsify.org/vise.git v0.1.0-rc.3.0.20240926120105-89b0529cf7ac/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/handlerservice.go

@@ -60,8 +60,8 @@ func (ls *LocalHandlerService) GetHandler() (*ussd.Handlers, error) {
 	ussdHandlers = ussdHandlers.WithPersister(ls.Pe)
 	ls.DbRs.AddLocalFunc("set_language", ussdHandlers.SetLanguage)
 	ls.DbRs.AddLocalFunc("create_account", ussdHandlers.CreateAccount)
-	ls.DbRs.AddLocalFunc("save_pin", ussdHandlers.SavePin)
-	ls.DbRs.AddLocalFunc("verify_pin", ussdHandlers.VerifyPin)
+	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)
@@ -88,13 +88,13 @@ func (ls *LocalHandlerService) GetHandler() (*ussd.Handlers, error) {
 	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("set_reset_single_edit", ussdHandlers.SetResetSingleEdit)
 	ls.DbRs.AddLocalFunc("initiate_transaction", ussdHandlers.InitiateTransaction)
-	ls.DbRs.AddLocalFunc("save_temporary_pin", ussdHandlers.SaveTemporaryPin)
 	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("check_vouchers", ussdHandlers.CheckVouchers)
 	ls.DbRs.AddLocalFunc("get_vouchers", ussdHandlers.GetVoucherList)
+	ls.DbRs.AddLocalFunc("view_voucher", ussdHandlers.ViewVoucher)
 
 	return ussdHandlers, nil
 }

internal/handlers/server/accountservice.go

@@ -14,6 +14,7 @@ type AccountServiceInterface interface {
 	CheckBalance(publicKey string) (string, error)
 	CreateAccount() (*models.AccountResponse, error)
 	CheckAccountStatus(trackingId string) (string, error)
+	FetchVouchers(publicKey string) (*models.VoucherHoldingResponse, error)
 }
 
 type AccountService struct {
@@ -106,6 +107,54 @@ func (as *AccountService) CreateAccount() (*models.AccountResponse, error) {
 	return &accountResp, nil
 }
 
+// FetchVouchers retrieves the token holdings for a given public key from the custodial holdings API endpoint
+// Parameters:
+//   - publicKey: The public key associated with the account.
+func (as *AccountService) FetchVouchers(publicKey string) (*models.VoucherHoldingResponse, error) {
+	// TODO replace with the actual request once ready
+	mockJSON := `{
+	"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"
+				}
+			]
+		}
+	}`
+
+	// Unmarshal the JSON response
+	var holdings models.VoucherHoldingResponse
+	err := json.Unmarshal([]byte(mockJSON), &holdings)
+	if err != nil {
+		return nil, err
+	}
+
+	return &holdings, nil
+}
+
 func  GetTokenList() (*models.ApiResponse, error) {
 	file, err := os.Open("sample_tokens.json")
 	if err != nil {

internal/handlers/ussd/menuhandler.go

@@ -21,6 +21,8 @@ import (
 	"git.grassecon.net/urdt/ussd/internal/handlers/server"
 	"git.grassecon.net/urdt/ussd/internal/utils"
 	"gopkg.in/leonelquinteros/gotext.v1"
+
+	"git.grassecon.net/urdt/ussd/internal/storage"
 )
 
 var (
@@ -117,17 +119,14 @@ func (h *Handlers) Init(ctx context.Context, sym string, input []byte) (resource
 func (h *Handlers) SetLanguage(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	var res resource.Result
 
-	sym, _ = h.st.Where()
+	symbol, _ := h.st.Where()
+	code := strings.Split(symbol, "_")[1]
 
-	switch sym {
-	case "set_default":
-		res.FlagSet = append(res.FlagSet, state.FLAG_LANG)
-		res.Content = "eng"
-	case "set_swa":
-		res.FlagSet = append(res.FlagSet, state.FLAG_LANG)
-		res.Content = "swa"
-	default:
+	if !utils.IsValidISO639(code) {
+		return res, nil
 	}
+	res.FlagSet = append(res.FlagSet, state.FLAG_LANG)
+	res.Content = code
 
 	languageSetFlag, err := h.flagManager.GetFlag("flag_language_set")
 	if err != nil {
@@ -183,34 +182,6 @@ func (h *Handlers) CreateAccount(ctx context.Context, sym string, input []byte)
 	return res, nil
 }
 
-// SavePin persists the user's PIN choice into the filesystem
-func (h *Handlers) SavePin(ctx context.Context, sym string, input []byte) (resource.Result, error) {
-	var res resource.Result
-	var err error
-
-	sessionId, ok := ctx.Value("SessionId").(string)
-	if !ok {
-		return res, fmt.Errorf("missing session")
-	}
-
-	flag_incorrect_pin, _ := h.flagManager.GetFlag("flag_incorrect_pin")
-
-	accountPIN := string(input)
-	// Validate that the PIN is a 4-digit number
-	if !isValidPIN(accountPIN) {
-		res.FlagSet = append(res.FlagSet, flag_incorrect_pin)
-		return res, nil
-	}
-
-	res.FlagReset = append(res.FlagReset, flag_incorrect_pin)
-	store := h.userdataStore
-	err = store.WriteEntry(ctx, sessionId, utils.DATA_ACCOUNT_PIN, []byte(accountPIN))
-	if err != nil {
-		return res, err
-	}
-	return res, nil
-}
-
 func (h *Handlers) VerifyNewPin(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	res := resource.Result{}
 	_, ok := ctx.Value("SessionId").(string)
@@ -229,6 +200,9 @@ func (h *Handlers) VerifyNewPin(ctx context.Context, sym string, input []byte) (
 	return res, nil
 }
 
+// SaveTemporaryPin saves the valid PIN input to the DATA_TEMPORARY_PIN
+// during the account creation process
+// and during the change PIN process
 func (h *Handlers) SaveTemporaryPin(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	var res resource.Result
 	var err error
@@ -237,6 +211,7 @@ func (h *Handlers) SaveTemporaryPin(ctx context.Context, sym string, input []byt
 	if !ok {
 		return res, fmt.Errorf("missing session")
 	}
+
 	flag_incorrect_pin, _ := h.flagManager.GetFlag("flag_incorrect_pin")
 
 	accountPIN := string(input)
@@ -246,61 +221,36 @@ func (h *Handlers) SaveTemporaryPin(ctx context.Context, sym string, input []byt
 		res.FlagSet = append(res.FlagSet, flag_incorrect_pin)
 		return res, nil
 	}
+
+	res.FlagReset = append(res.FlagReset, flag_incorrect_pin)
+
 	store := h.userdataStore
 	err = store.WriteEntry(ctx, sessionId, utils.DATA_TEMPORARY_PIN, []byte(accountPIN))
 	if err != nil {
 		return res, err
 	}
+
 	return res, nil
 }
 
-
+// GetVoucherList fetches the list of vouchers and formats them
+// checks whether they are stored internally before calling the API
 func (h *Handlers) GetVoucherList(ctx context.Context, sym string, input []byte) (resource.Result, error) {
-	res := resource.Result{}
-	//as := h.accountService.(*server.AccountService)
-	tokenList,err := server.GetTokenList()
-	fmt.Println("Error here:",err)
+	var res resource.Result
+
+	// check if the vouchers exist internally and if not
+	// fetch from the API
+
+	// Read vouchers from the store
+	store := h.userdataStore
+	prefixdb := storage.NewSubPrefixDb(store, []byte("token_holdings"))
+
+	voucherData, err := prefixdb.Get(ctx, []byte("tokens"))
 	if err != nil {
-		return res,err
+		return res, nil
 	}
 
-	holdings := tokenList.Result.Holdings
-	fmt.Println("TokenList:",tokenList.Result.Holdings)
-	
-	// vouchers := []string{
-	// 	"SRF",
-	// 	"CRF",
-	// 	"VCF",
-	// 	"VSAPA",
-	// 	"FSTMP",
-	// 	"FSAW",
-	// 	"PTAQ",
-	// 	"VCRXT",
-	// 	"VSGAQ",
-	// 	"QPWIQQ",
-	// 	"FSTMP",
-	// 	"FSAW",
-	// 	"PTAQ",
-	// 	"VCRXT",
-	// 	"VSGAQ",
-	// 	"QPWIQQ",
-	// 	"FSTMP",
-	// 	"FSAW",
-	// 	"PTAQ",
-	// 	"VCRXT",
-	// 	"VSGAQ",
-	// 	"QPWIQQ",
-	// }
-    var numberedVouchers []string
-	for  i,token := range holdings {
-		numberedVouchers = append(numberedVouchers, fmt.Sprintf("%d:%s", i+1, token.TokenSymbol))
-	}
-
-	// var numberedVouchers []string
-	// for i, voucher := range vouchers {
-	// 	numberedVouchers = append(numberedVouchers, fmt.Sprintf("%d:%s", i+1, voucher))
-	// }
-	res.Content = strings.Join(numberedVouchers,"\n")
+	res.Content = string(voucherData)
 
 	return res, nil
 }
@@ -330,36 +280,10 @@ func (h *Handlers) ConfirmPinChange(ctx context.Context, sym string, input []byt
 	return res, nil
 }
 
-// SetResetSingleEdit sets and resets  flags to allow gradual editing of profile information.
-func (h *Handlers) SetResetSingleEdit(ctx context.Context, sym string, input []byte) (resource.Result, error) {
-	var res resource.Result
-
-	menuOption := string(input)
-
-	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
-	flag_single_edit, _ := h.flagManager.GetFlag("flag_single_edit")
-
-	switch menuOption {
-	case "2":
-		res.FlagReset = append(res.FlagReset, flag_allow_update)
-		res.FlagSet = append(res.FlagSet, flag_single_edit)
-	case "3":
-		res.FlagReset = append(res.FlagReset, flag_allow_update)
-		res.FlagSet = append(res.FlagSet, flag_single_edit)
-	case "4":
-		res.FlagReset = append(res.FlagReset, flag_allow_update)
-		res.FlagSet = append(res.FlagSet, flag_single_edit)
-	default:
-		res.FlagReset = append(res.FlagReset, flag_single_edit)
-	}
-
-	return res, nil
-}
-
-// VerifyPin checks whether the confirmation PIN is similar to the account PIN
-// If similar, it sets the USERFLAG_PIN_SET flag allowing the user
+// VerifyCreatePin checks whether the confirmation PIN is similar to the temporary PIN
+// If similar, it sets the USERFLAG_PIN_SET flag and writes the account PIN allowing the user
 // to access the main menu
-func (h *Handlers) VerifyPin(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+func (h *Handlers) VerifyCreatePin(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	var res resource.Result
 
 	flag_valid_pin, _ := h.flagManager.GetFlag("flag_valid_pin")
@@ -371,14 +295,13 @@ func (h *Handlers) VerifyPin(ctx context.Context, sym string, input []byte) (res
 		return res, fmt.Errorf("missing session")
 	}
 
-	//AccountPin, _ := utils.ReadEntry(ctx, h.userdataStore, sessionId, utils.DATA_ACCOUNT_PIN)
 	store := h.userdataStore
-	AccountPin, err := store.ReadEntry(ctx, sessionId, utils.DATA_ACCOUNT_PIN)
+	temporaryPin, err := store.ReadEntry(ctx, sessionId, utils.DATA_TEMPORARY_PIN)
 	if err != nil {
 		return res, err
 	}
 
-	if bytes.Equal(input, AccountPin) {
+	if bytes.Equal(input, temporaryPin) {
 		res.FlagSet = []uint32{flag_valid_pin}
 		res.FlagReset = []uint32{flag_pin_mismatch}
 		res.FlagSet = append(res.FlagSet, flag_pin_set)
@@ -386,6 +309,11 @@ func (h *Handlers) VerifyPin(ctx context.Context, sym string, input []byte) (res
 		res.FlagSet = []uint32{flag_pin_mismatch}
 	}
 
+	err = store.WriteEntry(ctx, sessionId, utils.DATA_ACCOUNT_PIN, []byte(temporaryPin))
+	if err != nil {
+		return res, err
+	}
+
 	return res, nil
 }
 
@@ -486,6 +414,7 @@ func (h *Handlers) SaveLocation(ctx context.Context, sym string, input []byte) (
 
 // SaveGender updates the gender in the gdbm with the provided input.
 func (h *Handlers) SaveGender(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	symbol, _ := h.st.Where()
 	var res resource.Result
 	var err error
 	sessionId, ok := ctx.Value("SessionId").(string)
@@ -493,22 +422,12 @@ func (h *Handlers) SaveGender(ctx context.Context, sym string, input []byte) (re
 		return res, fmt.Errorf("missing session")
 	}
 
-	if len(input) > 0 {
-		gender := string(input)
-		switch gender {
-		case "1":
-			gender = "Male"
-		case "2":
-			gender = "Female"
-		case "3":
-			gender = "Unspecified"
-		}
+	gender := strings.Split(symbol, "_")[1]
 	store := h.userdataStore
 	err = store.WriteEntry(ctx, sessionId, utils.DATA_GENDER, []byte(gender))
 	if err != nil {
 		return res, nil
 	}
-	}
 
 	return res, nil
 }
@@ -1089,3 +1008,116 @@ func (h *Handlers) GetProfileInfo(ctx context.Context, sym string, input []byte)
 
 	return res, nil
 }
+
+// CheckVouchers retrieves the token holdings from the API using the "PublicKey" and stores
+// them to gdbm
+func (h *Handlers) CheckVouchers(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+
+	store := h.userdataStore
+	publicKey, err := store.ReadEntry(ctx, sessionId, utils.DATA_PUBLIC_KEY)
+	if err != nil {
+		return res, nil
+	}
+
+	// Fetch vouchers from the API using the public key
+	vouchersResp, err := h.accountService.FetchVouchers(string(publicKey))
+	if err != nil {
+		return res, nil
+	}
+
+	var numberedSymbols []string
+	var numberedBalances []string
+	for i, voucher := range vouchersResp.Result.Holdings {
+		numberedSymbols = append(numberedSymbols, fmt.Sprintf("%d:%s", i+1, voucher.TokenSymbol))
+		numberedBalances = append(numberedBalances, fmt.Sprintf("%d:%s", i+1, voucher.Balance))
+	}
+
+	voucherSymbolList := strings.Join(numberedSymbols, "\n")
+	voucherBalanceList := strings.Join(numberedBalances, "\n")
+
+	prefixdb := storage.NewSubPrefixDb(store, []byte("token_holdings"))
+	err = prefixdb.Put(ctx, []byte("tokens"), []byte(voucherSymbolList))
+	if err != nil {
+		return res, nil
+	}
+
+	err = prefixdb.Put(ctx, []byte(voucherSymbolList), []byte(voucherBalanceList))
+	if err != nil {
+		return res, nil
+	}
+
+	return res, nil
+}
+
+// ViewVoucher retrieves the token holding and balance from the subprefixDB
+func (h *Handlers) ViewVoucher(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	var err error
+	inputStr := string(input)
+
+	if inputStr == "0" || inputStr == "00" {
+		return res, nil
+	}
+
+	flag_incorrect_voucher, _ := h.flagManager.GetFlag("flag_incorrect_voucher")
+
+	// Initialize the store and prefix database
+	store := h.userdataStore
+	prefixdb := storage.NewSubPrefixDb(store, []byte("token_holdings"))
+
+	// Retrieve the voucher symbol list
+	voucherSymbolList, err := prefixdb.Get(ctx, []byte("tokens"))
+	if err != nil {
+		return res, fmt.Errorf("failed to retrieve voucher symbol list: %v", err)
+	}
+
+	// Retrieve the voucher balance list
+	voucherBalanceList, err := prefixdb.Get(ctx, []byte(voucherSymbolList))
+	if err != nil {
+		return res, fmt.Errorf("failed to retrieve voucher balance list: %v", err)
+	}
+
+	// Convert the symbol and balance lists from byte arrays to strings
+	voucherSymbols := string(voucherSymbolList)
+	voucherBalances := string(voucherBalanceList)
+
+	// Split the lists into slices for processing
+	symbols := strings.Split(voucherSymbols, "\n")
+	balances := strings.Split(voucherBalances, "\n")
+
+	var matchedSymbol, matchedBalance string
+
+	for i, symbol := range symbols {
+		symbolParts := strings.SplitN(symbol, ":", 2)
+		if len(symbolParts) != 2 {
+			continue
+		}
+		voucherNum := symbolParts[0]
+		voucherSymbol := symbolParts[1]
+
+		// Check if input matches either the number or the symbol
+		if inputStr == voucherNum || strings.EqualFold(inputStr, voucherSymbol) {
+			matchedSymbol = voucherSymbol
+			// Ensure there's a corresponding balance
+			if i < len(balances) {
+				matchedBalance = strings.SplitN(balances[i], ":", 2)[1] // Extract balance after the "x:balance" format
+			}
+			break
+		}
+	}
+
+	// If a match is found, return the symbol and balance
+	if matchedSymbol != "" && matchedBalance != "" {
+		res.Content = fmt.Sprintf("%s\n%s", matchedSymbol, matchedBalance)
+		res.FlagReset = append(res.FlagReset, flag_incorrect_voucher)
+	} else {
+		res.FlagSet = append(res.FlagSet, flag_incorrect_voucher)
+	}
+
+	return res, nil
+}

internal/handlers/ussd/menuhandler_test.go

@@ -9,6 +9,7 @@ import (
 	"testing"
 
 	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/persist"
 	"git.defalsify.org/vise.git/resource"
 	"git.defalsify.org/vise.git/state"
 	"git.grassecon.net/urdt/ussd/internal/mocks"
@@ -16,6 +17,7 @@ import (
 	"git.grassecon.net/urdt/ussd/internal/utils"
 	"github.com/alecthomas/assert/v2"
 	testdataloader "github.com/peteole/testdata-loader"
+	"github.com/stretchr/testify/require"
 )
 
 var (
@@ -94,6 +96,25 @@ func TestCreateAccount(t *testing.T) {
 	mockDataStore.AssertExpectations(t)
 }
 
+func TestWithPersister(t *testing.T) {
+	// Test case: Setting a persister
+	h := &Handlers{}
+	p := &persist.Persister{}
+
+	result := h.WithPersister(p)
+
+	assert.Equal(t, p, h.pe, "The persister should be set correctly.")
+	assert.Equal(t, h, result, "The returned handler should be the same instance.")
+}
+
+func TestWithPersister_PanicWhenAlreadySet(t *testing.T) {
+	// Test case: Panic on multiple calls
+	h := &Handlers{pe: &persist.Persister{}}
+	require.Panics(t, func() {
+		h.WithPersister(&persist.Persister{})
+	}, "Should panic when trying to set a persister again.")
+}
+
 func TestSaveFirstname(t *testing.T) {
 	// Create a new instance of MockMyDataStore
 	mockStore := new(mocks.MockUserDataStore)
@@ -150,7 +171,7 @@ func TestSaveFamilyname(t *testing.T) {
 	mockStore.AssertExpectations(t)
 }
 
-func TestSavePin(t *testing.T) {
+func TestSaveTemporaryPIn(t *testing.T) {
 	fm, err := NewFlagManager(flagsPath)
 	mockStore := new(mocks.MockUserDataStore)
 	if err != nil {
@@ -192,10 +213,10 @@ func TestSavePin(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 
 			// Set up the expected behavior of the mock
-			mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_ACCOUNT_PIN, []byte(tt.input)).Return(nil)
+			mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_PIN, []byte(tt.input)).Return(nil)
 
 			// Call the method
-			res, err := h.SavePin(ctx, "save_pin", tt.input)
+			res, err := h.SaveTemporaryPin(ctx, "save_pin", tt.input)
 
 			if err != nil {
 				t.Error(err)
@@ -295,6 +316,7 @@ func TestSaveOfferings(t *testing.T) {
 func TestSaveGender(t *testing.T) {
 	// Create a new instance of MockMyDataStore
 	mockStore := new(mocks.MockUserDataStore)
+	mockState := state.NewState(16)
 
 	// Define the session ID and context
 	sessionId := "session123"
@@ -306,31 +328,29 @@ func TestSaveGender(t *testing.T) {
 		input           []byte
 		expectedGender  string
 		expectCall      bool
+		executingSymbol string
 	}{
 		{
 			name:            "Valid Male Input",
 			input:           []byte("1"),
-			expectedGender: "Male",
+			expectedGender:  "male",
+			executingSymbol: "set_male",
 			expectCall:      true,
 		},
 		{
 			name:            "Valid Female Input",
 			input:           []byte("2"),
-			expectedGender: "Female",
+			expectedGender:  "female",
+			executingSymbol: "set_female",
 			expectCall:      true,
 		},
 		{
 			name:            "Valid Unspecified Input",
 			input:           []byte("3"),
-			expectedGender: "Unspecified",
+			executingSymbol: "set_unspecified",
+			expectedGender:  "unspecified",
 			expectCall:      true,
 		},
-		{
-			name:           "Empty Input",
-			input:          []byte(""),
-			expectedGender: "",
-			expectCall:     false,
-		},
 	}
 
 	for _, tt := range tests {
@@ -342,14 +362,15 @@ func TestSaveGender(t *testing.T) {
 			} else {
 				mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_GENDER, []byte(tt.expectedGender)).Return(nil)
 			}
-
+			mockState.ExecPath = append(mockState.ExecPath, tt.executingSymbol)
 			// Create the Handlers instance with the mock store
 			h := &Handlers{
 				userdataStore: mockStore,
+				st:            mockState,
 			}
 
 			// Call the method
-			_, err := h.SaveGender(ctx, "someSym", tt.input)
+			_, err := h.SaveGender(ctx, "save_gender", tt.input)
 
 			// Assert no error
 			assert.NoError(t, err)
@@ -544,7 +565,7 @@ func TestSetLanguage(t *testing.T) {
 	}{
 		{
 			name:     "Set Default Language (English)",
-			execPath: []string{"set_default"},
+			execPath: []string{"set_eng"},
 			expectedResult: resource.Result{
 				FlagSet: []uint32{state.FLAG_LANG, 8},
 				Content: "eng",
@@ -558,13 +579,6 @@ func TestSetLanguage(t *testing.T) {
 				Content: "swa",
 			},
 		},
-		{
-			name:     "Unhandled path",
-			execPath: []string{""},
-			expectedResult: resource.Result{
-				FlagSet: []uint32{8},
-			},
-		},
 	}
 
 	for _, tt := range tests {
@@ -592,76 +606,6 @@ func TestSetLanguage(t *testing.T) {
 		})
 	}
 }
-
-func TestSetResetSingleEdit(t *testing.T) {
-	fm, err := NewFlagManager(flagsPath)
-
-	flag_allow_update, _ := fm.parser.GetFlag("flag_allow_update")
-	flag_single_edit, _ := fm.parser.GetFlag("flag_single_edit")
-
-	if err != nil {
-		log.Fatal(err)
-	}
-	// Define test cases
-	tests := []struct {
-		name           string
-		input          []byte
-		expectedResult resource.Result
-	}{
-		{
-			name:  "Set single Edit",
-			input: []byte("2"),
-			expectedResult: resource.Result{
-				FlagSet:   []uint32{flag_single_edit},
-				FlagReset: []uint32{flag_allow_update},
-			},
-		},
-		{
-			name:  "Set single Edit",
-			input: []byte("3"),
-			expectedResult: resource.Result{
-				FlagSet:   []uint32{flag_single_edit},
-				FlagReset: []uint32{flag_allow_update},
-			},
-		},
-		{
-			name:  "Set single edit",
-			input: []byte("4"),
-			expectedResult: resource.Result{
-				FlagReset: []uint32{flag_allow_update},
-				FlagSet:   []uint32{flag_single_edit},
-			},
-		},
-		{
-			name:  "No single edit set",
-			input: []byte("1"),
-			expectedResult: resource.Result{
-				FlagReset: []uint32{flag_single_edit},
-			},
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-
-			// Create the Handlers instance with the mock flag manager
-			h := &Handlers{
-				flagManager: fm.parser,
-			}
-
-			// Call the method
-			res, err := h.SetResetSingleEdit(context.Background(), "set_reset_single_edit", tt.input)
-
-			if err != nil {
-				t.Error(err)
-			}
-			// Assert that the Result FlagSet has the required flags after language switch
-			assert.Equal(t, res, tt.expectedResult, "Flags should match reset edit")
-
-		})
-	}
-}
-
 func TestResetAllowUpdate(t *testing.T) {
 	fm, err := NewFlagManager(flagsPath)
 
@@ -993,7 +937,7 @@ func TestVerifyYob(t *testing.T) {
 	}
 }
 
-func TestVerifyPin(t *testing.T) {
+func TestVerifyCreatePin(t *testing.T) {
 	fm, err := NewFlagManager(flagsPath)
 
 	if err != nil {
@@ -1042,7 +986,7 @@ func TestVerifyPin(t *testing.T) {
 		},
 	}
 
-	typ := utils.DATA_ACCOUNT_PIN
+	typ := utils.DATA_TEMPORARY_PIN
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@@ -1050,8 +994,11 @@ func TestVerifyPin(t *testing.T) {
 			// Define expected interactions with the mock
 			mockDataStore.On("ReadEntry", ctx, sessionId, typ).Return([]byte(firstSetPin), nil)
 
+			// Set up the expected behavior of the mock
+			mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_ACCOUNT_PIN, []byte(firstSetPin)).Return(nil)
+
 			// Call the method under test
-			res, err := h.VerifyPin(ctx, "verify_pin", []byte(tt.input))
+			res, err := h.VerifyCreatePin(ctx, "verify_create_pin", []byte(tt.input))
 
 			// Assert that no errors occurred
 			assert.NoError(t, err)
@@ -1480,7 +1427,7 @@ func TestValidateAmount(t *testing.T) {
 	if err != nil {
 		t.Logf(err.Error())
 	}
-	//flag_invalid_amount, _ := fm.parser.GetFlag("flag_invalid_amount")
+	flag_invalid_amount, _ := fm.parser.GetFlag("flag_invalid_amount")
 	mockDataStore := new(mocks.MockUserDataStore)
 	mockCreateAccountService := new(mocks.MockAccountService)
 
@@ -1509,26 +1456,26 @@ func TestValidateAmount(t *testing.T) {
 				Content: "0.001",
 			},
 		},
-		// {
-		// 	name:      "Test with amount larger than balance",
-		// 	input:     []byte("0.02"),
-		// 	balance:   "0.003 CELO",
-		// 	publicKey: []byte("0xrqeqrequuq"),
-		// 	expectedResult: resource.Result{
-		// 		FlagSet: []uint32{flag_invalid_amount},
-		// 		Content: "0.02",
-		// 	},
-		// },
-		// {
-		// 	name:      "Test with invalid amount",
-		// 	input:     []byte("0.02ms"),
-		// 	balance:   "0.003 CELO",
-		// 	publicKey: []byte("0xrqeqrequuq"),
-		// 	expectedResult: resource.Result{
-		// 		FlagSet: []uint32{flag_invalid_amount},
-		// 		Content: "0.02ms",
-		// 	},
-		// },
+		{
+			name:      "Test with amount larger than balance",
+			input:     []byte("0.02"),
+			balance:   "0.003 CELO",
+			publicKey: []byte("0xrqeqrequuq"),
+			expectedResult: resource.Result{
+				FlagSet: []uint32{flag_invalid_amount},
+				Content: "0.02",
+			},
+		},
+		{
+			name:      "Test with invalid amount",
+			input:     []byte("0.02ms"),
+			balance:   "0.003 CELO",
+			publicKey: []byte("0xrqeqrequuq"),
+			expectedResult: resource.Result{
+				FlagSet: []uint32{flag_invalid_amount},
+				Content: "0.02ms",
+			},
+		},
 	}
 
 	for _, tt := range tests {
@@ -1536,7 +1483,7 @@ func TestValidateAmount(t *testing.T) {
 
 			mockDataStore.On("ReadEntry", ctx, sessionId, utils.DATA_PUBLIC_KEY).Return(tt.publicKey, nil)
 			mockCreateAccountService.On("CheckBalance", string(tt.publicKey)).Return(tt.balance, nil)
-			mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_AMOUNT, tt.input).Return(nil)
+			mockDataStore.On("WriteEntry", ctx, sessionId, utils.DATA_AMOUNT, tt.input).Return(nil).Maybe()
 
 			// Call the method under test
 			res, _ := h.ValidateAmount(ctx, "test_validate_amount", tt.input)
@@ -1648,6 +1595,7 @@ func TestGetProfile(t *testing.T) {
 
 	mockDataStore := new(mocks.MockUserDataStore)
 	mockCreateAccountService := new(mocks.MockAccountService)
+
 	h := &Handlers{
 		userdataStore:  mockDataStore,
 		accountService: mockCreateAccountService,
@@ -1748,42 +1696,6 @@ func TestVerifyNewPin(t *testing.T) {
 
 }
 
-func TestSaveTemporaryPIn(t *testing.T) {
-
-	fm, err := NewFlagManager(flagsPath)
-
-	if err != nil {
-		t.Logf(err.Error())
-	}
-
-	// Create a new instance of UserDataStore
-	mockStore := new(mocks.MockUserDataStore)
-
-	// Define test data
-	sessionId := "session123"
-	PIN := "1234"
-	ctx := context.WithValue(context.Background(), "SessionId", sessionId)
-
-	// Set up the expected behavior of the mock
-	mockStore.On("WriteEntry", ctx, sessionId, utils.DATA_TEMPORARY_PIN, []byte(PIN)).Return(nil)
-
-	// Create the Handlers instance with the mock store
-	h := &Handlers{
-		userdataStore: mockStore,
-		flagManager:   fm.parser,
-	}
-
-	// Call the method
-	res, err := h.SaveTemporaryPin(ctx, "save_temporary_pin", []byte(PIN))
-
-	// Assert results
-	assert.NoError(t, err)
-	assert.Equal(t, resource.Result{}, res)
-
-	// Assert all expectations were met
-	mockStore.AssertExpectations(t)
-}
-
 func TestConfirmPin(t *testing.T) {
 	sessionId := "session123"
 

internal/mocks/servicemock.go

@@ -24,3 +24,8 @@ func (m *MockAccountService) CheckAccountStatus(trackingId string) (string, erro
 	args := m.Called(trackingId)
 	return args.String(0), args.Error(1)
 }
+
+func (m *MockAccountService) FetchVouchers(publicKey string) (*models.VoucherHoldingResponse, error) {
+	args := m.Called()
+	return args.Get(0).(*models.VoucherHoldingResponse), args.Error(1)
+}

internal/models/vouchersresponse.go

@@ -0,0 +1,15 @@
+package models
+
+// VoucherHoldingResponse represents a single voucher holding
+type VoucherHoldingResponse struct {
+	Ok          bool   `json:"ok"`
+	Description string `json:"description"`
+	Result      struct {
+		Holdings []struct {
+			ContractAddress string `json:"contractAddress"`
+			TokenSymbol     string `json:"tokenSymbol"`
+			TokenDecimals   string `json:"tokenDecimals"`
+			Balance         string `json:"balance"`
+		} `json:"holdings"`
+	} `json:"result"`
+}

internal/storage/db.go

@@ -0,0 +1,43 @@
+package storage
+
+import (
+	"context"
+
+	"git.defalsify.org/vise.git/db"
+)
+
+const (
+	DATATYPE_USERSUB = 64
+)
+
+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)
+	v, err := s.store.Get(ctx, key)
+	if err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+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/storage.go

@@ -5,10 +5,6 @@ import (
 	"git.defalsify.org/vise.git/persist"
 )
 
-const (
-	DATATYPE_CUSTOM = 128 
-)
-
 type Storage struct {
 	Persister *persist.Persister
 	UserdataDb db.Db	

internal/utils/db.go

@@ -23,6 +23,7 @@ const (
 	DATA_RECIPIENT
 	DATA_AMOUNT
 	DATA_TEMPORARY_PIN
+	DATA_VOUCHER_LIST
 )
 
 func typToBytes(typ DataTyp) []byte {

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]
+}

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/confirm_create_pin.vis

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

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 0
+RELOAD save_temporary_pin
 CATCH . flag_incorrect_pin 1
 INCMP quit 0
 INCMP confirm_create_pin *

services/registration/edit_profile.vis

@@ -11,8 +11,6 @@ MOUT view 7
 MOUT back 0
 HALT
 INCMP my_account 0
-LOAD set_reset_single_edit 0
-RELOAD set_reset_single_edit
 INCMP enter_name 1
 INCMP enter_familyname 2
 INCMP select_gender 3

services/registration/main.vis

@@ -1,5 +1,7 @@
 LOAD check_balance 64
 RELOAD check_balance
+LOAD check_vouchers 10
+RELOAD check_vouchers
 MAP check_balance
 MOUT send 1
 MOUT vouchers 2

services/registration/my_vouchers.vis

@@ -4,6 +4,3 @@ MOUT back 0
 HALT
 INCMP _ 0
 INCMP select_voucher 1
-
-
-

services/registration/pp.csv

@@ -12,5 +12,5 @@ flag,flag_invalid_amount,18,this is set when the given transaction amount is inv
 flag,flag_incorrect_pin,19,this is set when the provided PIN is invalid or does not match the current account's PIN
 flag,flag_valid_pin,20,this is set when the given PIN is valid
 flag,flag_allow_update,21,this is set to allow a user to update their profile data
-flag,flag_single_edit,22,this is set to allow a user to edit a single profile item such as year of birth
+flag,flag_incorrect_voucher,22,this is set when the selected voucher is invalid
 flag,flag_incorrect_date_format,23,this is set when the given year of birth is invalid

services/registration/select_gender.vis

@@ -1,13 +1,15 @@
 CATCH incorrect_pin flag_incorrect_pin 1
 CATCH profile_update_success flag_allow_update 1
-LOAD save_gender 0
 MOUT male 1
 MOUT female 2
 MOUT unspecified 3
 MOUT back 0
 HALT
-RELOAD save_gender
 INCMP _ 0
-INCMP pin_entry *
+INCMP set_male 1
+INCMP set_female 2
+INCMP set_unspecified 3
+
+
 
 

services/registration/select_language.vis

@@ -1,6 +1,6 @@
 MOUT english 0
 MOUT kiswahili 1
 HALT
-INCMP set_default 0
+INCMP set_eng 0
 INCMP set_swa 1
 INCMP . *

services/registration/select_voucher.vis

@@ -1,11 +1,15 @@
 LOAD get_vouchers 0
 MAP get_vouchers
 MOUT back 0
-MOUT quit 9
+MOUT quit 00
 MNEXT next 11
 MPREV prev 22
 HALT
+LOAD view_voucher 80
+RELOAD view_voucher
+CATCH . flag_incorrect_voucher 1
 INCMP _ 0
 INCMP quit 9
 INCMP > 11
 INCMP < 22
+INCMP view_voucher *

services/registration/select_voucher_swa

@@ -0,0 +1,2 @@
+Chagua nambari au ishara kutoka kwa salio zako:
+{{.get_vouchers}}

services/registration/set_female.vis

@@ -0,0 +1,4 @@
+LOAD save_gender 0
+CATCH incorrect_pin flag_incorrect_pin 1
+CATCH profile_update_success flag_allow_update 1
+MOVE pin_entry

services/registration/set_male.vis

@@ -0,0 +1,4 @@
+LOAD save_gender 0
+CATCH incorrect_pin flag_incorrect_pin 1
+CATCH profile_update_success flag_allow_update 1
+MOVE pin_entry

services/registration/set_unspecified.vis

@@ -0,0 +1,4 @@
+LOAD save_gender 0
+CATCH incorrect_pin flag_incorrect_pin 1
+CATCH profile_update_success flag_allow_update 1
+MOVE pin_entry

services/registration/view_voucher

@@ -0,0 +1,2 @@
+Enter PIN to confirm selection:
+{{.view_voucher}}

services/registration/view_voucher.vis

@@ -0,0 +1,11 @@
+RELOAD view_voucher
+MAP view_voucher
+MOUT back 0
+MOUT quit 9
+LOAD authorize_account 6
+HALT
+RELOAD authorize_account
+CATCH incorrect_pin flag_incorrect_pin 1
+INCMP _ 0
+INCMP quit 9
+INCMP voucher_set *

services/registration/view_voucher_swa

@@ -0,0 +1,2 @@
+Weka PIN ili kuthibitisha chaguo:
+{{.view_voucher}}

services/registration/voucher_set

@@ -0,0 +1 @@
+Success! symbol is now your active voucher.

services/registration/voucher_set.vis

@@ -0,0 +1,5 @@
+MOUT back 0
+MOUT quit 9
+HALT
+INCMP ^ 0
+INCMP quit 9

services/registration/voucher_set_swa

@@ -0,0 +1 @@
+Hongera! symbol ni Sarafu inayotumika sasa.