added profile.go for profile related functionality

handlers/application/poolswap.go

@@ -0,0 +1,427 @@
+package application
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/grassrootseconomics/sarafu-vise/config"
+	"git.grassecon.net/grassrootseconomics/sarafu-vise/store"
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+	"gopkg.in/leonelquinteros/gotext.v1"
+)
+
+// GetPools fetches a list of 5 top pools
+func (h *MenuHandlers) GetPools(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")
+	}
+	userStore := h.userdataStore
+
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_error")
+
+	// call the api to get a list of top 5 pools sorted by swaps
+	topPools, err := h.accountService.FetchTopPools(ctx)
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		logg.ErrorCtxf(ctx, "failed on FetchTransactions", "error", err)
+		return res, err
+	}
+
+	// Return if there are no pools
+	if len(topPools) == 0 {
+		return res, nil
+	}
+
+	data := store.ProcessPools(topPools)
+
+	// Store all Pool data
+	dataMap := map[storedb.DataTyp]string{
+		storedb.DATA_POOL_NAMES:     data.PoolNames,
+		storedb.DATA_POOL_SYMBOLS:   data.PoolSymbols,
+		storedb.DATA_POOL_ADDRESSES: data.PoolContractAdrresses,
+	}
+
+	// Write data entries
+	for key, value := range dataMap {
+		if err := userStore.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+			logg.ErrorCtxf(ctx, "Failed to write data entry for sessionId: %s", sessionId, "key", key, "error", err)
+			continue
+		}
+	}
+
+	res.Content = h.ReplaceSeparatorFunc(data.PoolSymbols)
+
+	return res, nil
+}
+
+// LoadSwapFromList returns a list of possible vouchers to swap to
+func (h *MenuHandlers) LoadSwapToList(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")
+	}
+
+	userStore := h.userdataStore
+
+	// get the active address and symbol
+	activeAddress, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_ADDRESS)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read activeAddress entry with", "key", storedb.DATA_ACTIVE_ADDRESS, "error", err)
+		return res, err
+	}
+	activeSym, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_SYM)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read activeSym entry with", "key", storedb.DATA_ACTIVE_SYM, "error", err)
+		return res, err
+	}
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	flag_incorrect_voucher, _ := h.flagManager.GetFlag("flag_incorrect_voucher")
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_error")
+
+	inputStr := string(input)
+	if inputStr == "0" {
+		return res, nil
+	}
+
+	// Get active pool address and symbol or fall back to default
+	var activePoolAddress []byte
+	activePoolAddress, err = userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_POOL_ADDRESS)
+	if err != nil {
+		if db.IsNotFound(err) {
+			defaultPoolAddress := config.DefaultPoolAddress()
+			// store the default as the active pool address
+			err = userStore.WriteEntry(ctx, sessionId, storedb.DATA_ACTIVE_POOL_ADDRESS, []byte(defaultPoolAddress))
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write default PoolContractAdrress", "key", storedb.DATA_ACTIVE_POOL_ADDRESS, "value", defaultPoolAddress, "error", err)
+				return res, err
+			}
+			activePoolAddress = []byte(defaultPoolAddress)
+		} else {
+			logg.ErrorCtxf(ctx, "failed to read active PoolContractAdrress", "key", storedb.DATA_ACTIVE_POOL_ADDRESS, "error", err)
+			return res, err
+		}
+	}
+
+	var activePoolSymbol []byte
+	activePoolSymbol, err = userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_POOL_SYM)
+	if err != nil {
+		if db.IsNotFound(err) {
+			defaultPoolSym := config.DefaultPoolName()
+			// store the default as the active pool symbol
+			err = userStore.WriteEntry(ctx, sessionId, storedb.DATA_ACTIVE_POOL_SYM, []byte(defaultPoolSym))
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write default Pool Symbol", "key", storedb.DATA_ACTIVE_POOL_SYM, "value", defaultPoolSym, "error", err)
+				return res, err
+			}
+			activePoolSymbol = []byte(defaultPoolSym)
+		} else {
+			logg.ErrorCtxf(ctx, "failed to read active Pool symbol", "key", storedb.DATA_ACTIVE_POOL_SYM, "error", err)
+			return res, err
+		}
+	}
+
+	// call the api using the ActivePoolAddress and ActiveVoucherAddress to check if it is part of the pool
+	r, err := h.accountService.CheckTokenInPool(ctx, string(activePoolAddress), string(activeAddress))
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		logg.ErrorCtxf(ctx, "failed on CheckTokenInPool", "error", err)
+		return res, err
+	}
+
+	logg.InfoCtxf(ctx, "CheckTokenInPool", "response", r, "active_pool_address", string(activePoolAddress), "active_symbol_address", string(activeAddress))
+
+	if !r.CanSwapFrom {
+		res.FlagSet = append(res.FlagSet, flag_incorrect_voucher)
+		res.Content = l.Get(
+			"%s is not in %s. Please update your voucher and try again.",
+			activeSym,
+			activePoolSymbol,
+		)
+		return res, nil
+	}
+
+	res.FlagReset = append(res.FlagReset, flag_incorrect_voucher)
+
+	// call the api using the activePoolAddress to get a list of SwapToSymbolsData
+	swapToList, err := h.accountService.GetPoolSwappableVouchers(ctx, string(activePoolAddress))
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		logg.ErrorCtxf(ctx, "failed on FetchTransactions", "error", err)
+		return res, err
+	}
+
+	logg.InfoCtxf(ctx, "GetPoolSwappableVouchers", "swapToList", swapToList)
+
+	// Return if there are no vouchers
+	if len(swapToList) == 0 {
+		return res, nil
+	}
+
+	data := store.ProcessVouchers(swapToList)
+
+	logg.InfoCtxf(ctx, "ProcessVouchers", "data", data)
+
+	// Store all swap_to tokens data
+	dataMap := map[storedb.DataTyp]string{
+		storedb.DATA_POOL_TO_SYMBOLS:   data.Symbols,
+		storedb.DATA_POOL_TO_BALANCES:  data.Balances,
+		storedb.DATA_POOL_TO_DECIMALS:  data.Decimals,
+		storedb.DATA_POOL_TO_ADDRESSES: data.Addresses,
+	}
+
+	for key, value := range dataMap {
+		if err := userStore.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+			logg.ErrorCtxf(ctx, "Failed to write data entry for sessionId: %s", sessionId, "key", key, "error", err)
+			continue
+		}
+	}
+
+	res.Content = h.ReplaceSeparatorFunc(data.Symbols)
+
+	return res, nil
+}
+
+// SwapMaxLimit returns the max FROM token
+// check if max/tokenDecimals > 0.1 for UX purposes and to prevent swapping of dust values
+func (h *MenuHandlers) SwapMaxLimit(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")
+	}
+
+	flag_incorrect_voucher, _ := h.flagManager.GetFlag("flag_incorrect_voucher")
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_error")
+	flag_low_swap_amount, _ := h.flagManager.GetFlag("flag_low_swap_amount")
+
+	res.FlagReset = append(res.FlagReset, flag_incorrect_voucher, flag_low_swap_amount)
+
+	inputStr := string(input)
+	if inputStr == "0" {
+		return res, nil
+	}
+
+	userStore := h.userdataStore
+	metadata, err := store.GetSwapToVoucherData(ctx, userStore, sessionId, inputStr)
+	if err != nil {
+		return res, fmt.Errorf("failed to retrieve swap to voucher data: %v", err)
+	}
+	if metadata == nil {
+		res.FlagSet = append(res.FlagSet, flag_incorrect_voucher)
+		return res, nil
+	}
+
+	logg.InfoCtxf(ctx, "Metadata from GetSwapToVoucherData:", "metadata", metadata)
+
+	// Store the active swap_to data
+	if err := store.UpdateSwapToVoucherData(ctx, userStore, sessionId, metadata); err != nil {
+		logg.ErrorCtxf(ctx, "failed on UpdateSwapToVoucherData", "error", err)
+		return res, err
+	}
+
+	swapData, err := store.ReadSwapData(ctx, userStore, sessionId)
+	if err != nil {
+		return res, err
+	}
+
+	// call the api using the ActivePoolAddress, ActiveSwapFromAddress, ActiveSwapToAddress and PublicKey to get the swap max limit
+	logg.InfoCtxf(ctx, "Call GetSwapFromTokenMaxLimit with:", "ActivePoolAddress", swapData.ActivePoolAddress, "ActiveSwapFromAddress", swapData.ActiveSwapFromAddress, "ActiveSwapToAddress", swapData.ActiveSwapToAddress, "publicKey", swapData.PublicKey)
+	r, err := h.accountService.GetSwapFromTokenMaxLimit(ctx, swapData.ActivePoolAddress, swapData.ActiveSwapFromAddress, swapData.ActiveSwapToAddress, swapData.PublicKey)
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		logg.ErrorCtxf(ctx, "failed on GetSwapFromTokenMaxLimit", "error", err)
+		return res, err
+	}
+
+	// Scale down the amount
+	maxAmountStr := store.ScaleDownBalance(r.Max, swapData.ActiveSwapFromDecimal)
+	if err != nil {
+		return res, err
+	}
+
+	maxAmountFloat, err := strconv.ParseFloat(maxAmountStr, 64)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to parse maxAmountStr as float", "value", maxAmountStr, "error", err)
+		return res, err
+	}
+
+	// Format to 2 decimal places
+	maxStr := fmt.Sprintf("%.2f", maxAmountFloat)
+
+	if maxAmountFloat < 0.1 {
+		// return with low amount flag
+		res.Content = maxStr
+		res.FlagSet = append(res.FlagSet, flag_low_swap_amount)
+		return res, nil
+	}
+
+	err = userStore.WriteEntry(ctx, sessionId, storedb.DATA_ACTIVE_SWAP_MAX_AMOUNT, []byte(maxStr))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to write swap max amount entry with", "key", storedb.DATA_ACTIVE_SWAP_MAX_AMOUNT, "value", maxStr, "error", err)
+		return res, err
+	}
+
+	res.Content = fmt.Sprintf(
+		"Maximum: %s\n\nEnter amount of %s to swap for %s:",
+		maxStr, swapData.ActiveSwapFromSym, swapData.ActiveSwapToSym,
+	)
+
+	return res, nil
+}
+
+// SwapPreview displays the swap preview and estimates
+func (h *MenuHandlers) SwapPreview(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")
+	}
+
+	inputStr := string(input)
+	if inputStr == "0" {
+		return res, nil
+	}
+
+	flag_invalid_amount, _ := h.flagManager.GetFlag("flag_invalid_amount")
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	userStore := h.userdataStore
+
+	swapData, err := store.ReadSwapPreviewData(ctx, userStore, sessionId)
+	if err != nil {
+		return res, err
+	}
+
+	maxValue, err := strconv.ParseFloat(swapData.ActiveSwapMaxAmount, 64)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "Failed to convert the swapMaxAmount to a float", "error", err)
+		return res, err
+	}
+
+	inputAmount, err := strconv.ParseFloat(inputStr, 64)
+	if err != nil || inputAmount > maxValue {
+		res.FlagSet = append(res.FlagSet, flag_invalid_amount)
+		res.Content = inputStr
+		return res, nil
+	}
+
+	// Format the amount to 2 decimal places
+	formattedAmount, err := store.TruncateDecimalString(inputStr, 2)
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_invalid_amount)
+		res.Content = inputStr
+		return res, nil
+	}
+
+	finalAmountStr, err := store.ParseAndScaleAmount(formattedAmount, swapData.ActiveSwapFromDecimal)
+	if err != nil {
+		return res, err
+	}
+
+	err = userStore.WriteEntry(ctx, sessionId, storedb.DATA_ACTIVE_SWAP_AMOUNT, []byte(finalAmountStr))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to write swap amount entry with", "key", storedb.DATA_ACTIVE_SWAP_AMOUNT, "value", finalAmountStr, "error", err)
+		return res, err
+	}
+	// store the user's input amount in the temporary value
+	err = userStore.WriteEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE, []byte(inputStr))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to write swap amount entry with", "key", storedb.DATA_ACTIVE_SWAP_AMOUNT, "value", finalAmountStr, "error", err)
+		return res, err
+	}
+
+	// call the API to get the quote
+	r, err := h.accountService.GetPoolSwapQuote(ctx, finalAmountStr, swapData.PublicKey, swapData.ActiveSwapFromAddress, swapData.ActivePoolAddress, swapData.ActiveSwapToAddress)
+	if err != nil {
+		flag_api_error, _ := h.flagManager.GetFlag("flag_api_call_error")
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		res.Content = l.Get("Your request failed. Please try again later.")
+		logg.ErrorCtxf(ctx, "failed on poolSwap", "error", err)
+		return res, nil
+	}
+
+	// Scale down the quoted amount
+	quoteAmountStr := store.ScaleDownBalance(r.OutValue, swapData.ActiveSwapToDecimal)
+	qouteAmount, err := strconv.ParseFloat(quoteAmountStr, 64)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to parse quoteAmountStr as float", "value", quoteAmountStr, "error", err)
+		return res, err
+	}
+
+	// Format to 2 decimal places
+	qouteStr := fmt.Sprintf("%.2f", qouteAmount)
+
+	res.Content = fmt.Sprintf(
+		"You will swap:\n%s %s for %s %s:",
+		inputStr, swapData.ActiveSwapFromSym, qouteStr, swapData.ActiveSwapToSym,
+	)
+
+	return res, nil
+}
+
+// InitiateSwap calls the poolSwap and returns a confirmation based on the result.
+func (h *MenuHandlers) InitiateSwap(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_account_authorized, _ := h.flagManager.GetFlag("flag_account_authorized")
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	userStore := h.userdataStore
+
+	swapData, err := store.ReadSwapPreviewData(ctx, userStore, sessionId)
+	if err != nil {
+		return res, err
+	}
+
+	swapAmount, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_SWAP_AMOUNT)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read swapAmount entry with", "key", storedb.DATA_ACTIVE_SWAP_AMOUNT, "error", err)
+		return res, err
+	}
+
+	swapAmountStr := string(swapAmount)
+
+	// Call the poolSwap API
+	r, err := h.accountService.PoolSwap(ctx, swapAmountStr, swapData.PublicKey, swapData.ActiveSwapFromAddress, swapData.ActivePoolAddress, swapData.ActiveSwapToAddress)
+	if err != nil {
+		flag_api_error, _ := h.flagManager.GetFlag("flag_api_call_error")
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		res.Content = l.Get("Your request failed. Please try again later.")
+		logg.ErrorCtxf(ctx, "failed on poolSwap", "error", err)
+		return res, nil
+	}
+
+	trackingId := r.TrackingId
+	logg.InfoCtxf(ctx, "poolSwap", "trackingId", trackingId)
+
+	res.Content = l.Get(
+		"Your request has been sent. You will receive an SMS when your %s %s has been swapped for %s.",
+		swapData.TemporaryValue,
+		swapData.ActiveSwapFromSym,
+		swapData.ActiveSwapToSym,
+	)
+
+	res.FlagReset = append(res.FlagReset, flag_account_authorized)
+	return res, nil
+}

handlers/application/profile.go

@@ -0,0 +1,616 @@
+package application
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/lang"
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/grassrootseconomics/common/person"
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+)
+
+// SaveFirstname updates the first name in the gdbm with the provided input.
+func (h *MenuHandlers) SaveFirstname(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")
+	}
+	firstName := string(input)
+
+	store := h.userdataStore
+	logdb := h.logDb
+
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	flag_firstname_set, _ := h.flagManager.GetFlag("flag_firstname_set")
+
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+	firstNameSet := h.st.MatchFlag(flag_firstname_set, true)
+	if allowUpdate {
+		temporaryFirstName, _ := store.ReadEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE)
+		if len(temporaryFirstName) == 0 {
+			logg.ErrorCtxf(ctx, "temporaryFirstName is empty", "key", storedb.DATA_TEMPORARY_VALUE)
+			return res, fmt.Errorf("Data error encountered")
+		}
+		err = store.WriteEntry(ctx, sessionId, storedb.DATA_FIRST_NAME, []byte(temporaryFirstName))
+		if err != nil {
+			logg.ErrorCtxf(ctx, "failed to write firstName entry with", "key", storedb.DATA_FIRST_NAME, "value", temporaryFirstName, "error", err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_firstname_set)
+
+		err = logdb.WriteLogEntry(ctx, sessionId, storedb.DATA_FIRST_NAME, []byte(temporaryFirstName))
+		if err != nil {
+			logg.DebugCtxf(ctx, "Failed to write firtname db log entry", "key", storedb.DATA_FIRST_NAME, "value", temporaryFirstName)
+		}
+	} else {
+		if firstNameSet {
+			err = store.WriteEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE, []byte(firstName))
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write temporaryFirstName entry with", "key", storedb.DATA_TEMPORARY_VALUE, "value", firstName, "error", err)
+				return res, err
+			}
+		} else {
+			h.profile.InsertOrShift(0, firstName)
+		}
+	}
+
+	return res, nil
+}
+
+// SaveFamilyname updates the family name in the gdbm with the provided input.
+func (h *MenuHandlers) SaveFamilyname(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")
+	}
+
+	store := h.userdataStore
+	logdb := h.logDb
+	familyName := string(input)
+
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	flag_familyname_set, _ := h.flagManager.GetFlag("flag_familyname_set")
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+	familyNameSet := h.st.MatchFlag(flag_familyname_set, true)
+
+	if allowUpdate {
+		temporaryFamilyName, _ := store.ReadEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE)
+		if len(temporaryFamilyName) == 0 {
+			logg.ErrorCtxf(ctx, "temporaryFamilyName is empty", "key", storedb.DATA_TEMPORARY_VALUE)
+			return res, fmt.Errorf("Data error encountered")
+		}
+		err = store.WriteEntry(ctx, sessionId, storedb.DATA_FAMILY_NAME, []byte(temporaryFamilyName))
+		if err != nil {
+			logg.ErrorCtxf(ctx, "failed to write familyName entry with", "key", storedb.DATA_FAMILY_NAME, "value", temporaryFamilyName, "error", err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_familyname_set)
+
+		err = logdb.WriteLogEntry(ctx, sessionId, storedb.DATA_FAMILY_NAME, []byte(temporaryFamilyName))
+		if err != nil {
+			logg.DebugCtxf(ctx, "Failed to write firtname db log entry", "key", storedb.DATA_FAMILY_NAME, "value", temporaryFamilyName)
+		}
+	} else {
+		if familyNameSet {
+			err = store.WriteEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE, []byte(familyName))
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write temporaryFamilyName entry with", "key", storedb.DATA_TEMPORARY_VALUE, "value", familyName, "error", err)
+				return res, err
+			}
+		} else {
+			h.profile.InsertOrShift(1, familyName)
+		}
+	}
+
+	return res, nil
+}
+
+// VerifyYob verifies the length of the given input.
+func (h *MenuHandlers) VerifyYob(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	var err error
+
+	flag_incorrect_date_format, _ := h.flagManager.GetFlag("flag_incorrect_date_format")
+	date := string(input)
+	_, err = strconv.Atoi(date)
+	if err != nil {
+		// If conversion fails, input is not numeric
+		res.FlagSet = append(res.FlagSet, flag_incorrect_date_format)
+		return res, nil
+	}
+
+	if person.IsValidYOb(date) {
+		res.FlagReset = append(res.FlagReset, flag_incorrect_date_format)
+	} else {
+		res.FlagSet = append(res.FlagSet, flag_incorrect_date_format)
+	}
+	return res, nil
+}
+
+// ResetIncorrectYob resets the incorrect date format flag after a new attempt.
+func (h *MenuHandlers) ResetIncorrectYob(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+
+	flag_incorrect_date_format, _ := h.flagManager.GetFlag("flag_incorrect_date_format")
+	res.FlagReset = append(res.FlagReset, flag_incorrect_date_format)
+	return res, nil
+}
+
+// SaveYOB updates the Year of Birth(YOB) in the gdbm with the provided input.
+func (h *MenuHandlers) SaveYob(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")
+	}
+	yob := string(input)
+	store := h.userdataStore
+	logdb := h.logDb
+
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	flag_yob_set, _ := h.flagManager.GetFlag("flag_yob_set")
+
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+	yobSet := h.st.MatchFlag(flag_yob_set, true)
+
+	if allowUpdate {
+		temporaryYob, _ := store.ReadEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE)
+		if len(temporaryYob) == 0 {
+			logg.ErrorCtxf(ctx, "temporaryYob is empty", "key", storedb.DATA_TEMPORARY_VALUE)
+			return res, fmt.Errorf("Data error encountered")
+		}
+		err = store.WriteEntry(ctx, sessionId, storedb.DATA_YOB, []byte(temporaryYob))
+		if err != nil {
+			logg.ErrorCtxf(ctx, "failed to write yob entry with", "key", storedb.DATA_TEMPORARY_VALUE, "value", temporaryYob, "error", err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_yob_set)
+
+		err = logdb.WriteLogEntry(ctx, sessionId, storedb.DATA_YOB, []byte(temporaryYob))
+		if err != nil {
+			logg.DebugCtxf(ctx, "Failed to write yob db log entry", "key", storedb.DATA_YOB, "value", temporaryYob)
+		}
+	} else {
+		if yobSet {
+			err = store.WriteEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE, []byte(yob))
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write temporaryYob entry with", "key", storedb.DATA_TEMPORARY_VALUE, "value", yob, "error", err)
+				return res, err
+			}
+		} else {
+			h.profile.InsertOrShift(3, yob)
+		}
+	}
+
+	return res, nil
+}
+
+// SaveLocation updates the location in the gdbm with the provided input.
+func (h *MenuHandlers) SaveLocation(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")
+	}
+	location := string(input)
+	store := h.userdataStore
+	logdb := h.logDb
+
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	flag_location_set, _ := h.flagManager.GetFlag("flag_location_set")
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+	locationSet := h.st.MatchFlag(flag_location_set, true)
+
+	if allowUpdate {
+		temporaryLocation, _ := store.ReadEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE)
+		if len(temporaryLocation) == 0 {
+			logg.ErrorCtxf(ctx, "temporaryLocation is empty", "key", storedb.DATA_TEMPORARY_VALUE)
+			return res, fmt.Errorf("Data error encountered")
+		}
+		err = store.WriteEntry(ctx, sessionId, storedb.DATA_LOCATION, []byte(temporaryLocation))
+		if err != nil {
+			logg.ErrorCtxf(ctx, "failed to write location entry with", "key", storedb.DATA_LOCATION, "value", temporaryLocation, "error", err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_location_set)
+
+		err = logdb.WriteLogEntry(ctx, sessionId, storedb.DATA_LOCATION, []byte(temporaryLocation))
+		if err != nil {
+			logg.DebugCtxf(ctx, "Failed to write location db log entry", "key", storedb.DATA_LOCATION, "value", temporaryLocation)
+		}
+	} else {
+		if locationSet {
+			err = store.WriteEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE, []byte(location))
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write temporaryLocation entry with", "key", storedb.DATA_TEMPORARY_VALUE, "value", location, "error", err)
+				return res, err
+			}
+			res.FlagSet = append(res.FlagSet, flag_location_set)
+		} else {
+			h.profile.InsertOrShift(4, location)
+		}
+	}
+
+	return res, nil
+}
+
+// SaveGender updates the gender in the gdbm with the provided input.
+func (h *MenuHandlers) 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)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+	gender := strings.Split(symbol, "_")[1]
+	store := h.userdataStore
+	logdb := h.logDb
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	flag_gender_set, _ := h.flagManager.GetFlag("flag_gender_set")
+
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+	genderSet := h.st.MatchFlag(flag_gender_set, true)
+
+	if allowUpdate {
+		temporaryGender, _ := store.ReadEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE)
+		if len(temporaryGender) == 0 {
+			logg.ErrorCtxf(ctx, "temporaryGender is empty", "key", storedb.DATA_TEMPORARY_VALUE)
+			return res, fmt.Errorf("Data error encountered")
+		}
+		err = store.WriteEntry(ctx, sessionId, storedb.DATA_GENDER, []byte(temporaryGender))
+		if err != nil {
+			logg.ErrorCtxf(ctx, "failed to write gender entry with", "key", storedb.DATA_GENDER, "value", gender, "error", err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_gender_set)
+
+		err = logdb.WriteLogEntry(ctx, sessionId, storedb.DATA_GENDER, []byte(temporaryGender))
+		if err != nil {
+			logg.DebugCtxf(ctx, "Failed to write gender db log entry", "key", storedb.DATA_TEMPORARY_VALUE, "value", temporaryGender)
+		}
+
+	} else {
+		if genderSet {
+			err = store.WriteEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE, []byte(gender))
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write temporaryGender entry with", "key", storedb.DATA_TEMPORARY_VALUE, "value", gender, "error", err)
+				return res, err
+			}
+		} else {
+			h.profile.InsertOrShift(2, gender)
+		}
+	}
+
+	return res, nil
+}
+
+// SaveOfferings updates the offerings(goods and services provided by the user) in the gdbm with the provided input.
+func (h *MenuHandlers) SaveOfferings(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")
+	}
+
+	offerings := string(input)
+	store := h.userdataStore
+	logdb := h.logDb
+
+	flag_allow_update, _ := h.flagManager.GetFlag("flag_allow_update")
+	flag_offerings_set, _ := h.flagManager.GetFlag("flag_offerings_set")
+
+	allowUpdate := h.st.MatchFlag(flag_allow_update, true)
+	offeringsSet := h.st.MatchFlag(flag_offerings_set, true)
+
+	if allowUpdate {
+		temporaryOfferings, _ := store.ReadEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE)
+		if len(temporaryOfferings) == 0 {
+			logg.ErrorCtxf(ctx, "temporaryOfferings is empty", "key", storedb.DATA_TEMPORARY_VALUE)
+			return res, fmt.Errorf("Data error encountered")
+		}
+		err = store.WriteEntry(ctx, sessionId, storedb.DATA_OFFERINGS, []byte(temporaryOfferings))
+		if err != nil {
+			logg.ErrorCtxf(ctx, "failed to write offerings entry with", "key", storedb.DATA_TEMPORARY_VALUE, "value", offerings, "error", err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_offerings_set)
+
+		err = logdb.WriteLogEntry(ctx, sessionId, storedb.DATA_FIRST_NAME, []byte(temporaryOfferings))
+		if err != nil {
+			logg.DebugCtxf(ctx, "Failed to write offerings db log entry", "key", storedb.DATA_OFFERINGS, "value", offerings)
+		}
+	} else {
+		if offeringsSet {
+			err = store.WriteEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE, []byte(offerings))
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write temporaryOfferings entry with", "key", storedb.DATA_TEMPORARY_VALUE, "value", offerings, "error", err)
+				return res, err
+			}
+		} else {
+			h.profile.InsertOrShift(5, offerings)
+		}
+	}
+
+	return res, nil
+}
+
+// GetCurrentProfileInfo retrieves specific profile fields based on the current state of the USSD session.
+// Uses flag management system to track profile field status and handle menu navigation.
+func (h *MenuHandlers) GetCurrentProfileInfo(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	var profileInfo []byte
+	var defaultValue string
+	var err error
+
+	flag_firstname_set, _ := h.flagManager.GetFlag("flag_firstname_set")
+	flag_familyname_set, _ := h.flagManager.GetFlag("flag_familyname_set")
+	flag_yob_set, _ := h.flagManager.GetFlag("flag_yob_set")
+	flag_gender_set, _ := h.flagManager.GetFlag("flag_gender_set")
+	flag_location_set, _ := h.flagManager.GetFlag("flag_location_set")
+	flag_offerings_set, _ := h.flagManager.GetFlag("flag_offerings_set")
+	flag_back_set, _ := h.flagManager.GetFlag("flag_back_set")
+
+	res.FlagReset = append(res.FlagReset, flag_back_set)
+
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+	language, ok := ctx.Value("Language").(lang.Language)
+	if !ok {
+		return res, fmt.Errorf("value for 'Language' is not of type lang.Language")
+	}
+	code := language.Code
+	if code == "swa" {
+		defaultValue = "Haipo"
+	} else {
+		defaultValue = "Not Provided"
+	}
+
+	sm, _ := h.st.Where()
+	parts := strings.SplitN(sm, "_", 2)
+	filename := parts[1]
+	dbKeyStr := "DATA_" + strings.ToUpper(filename)
+	logg.InfoCtxf(ctx, "GetCurrentProfileInfo", "filename", filename, "dbKeyStr:", dbKeyStr)
+	dbKey, err := storedb.StringToDataTyp(dbKeyStr)
+
+	if err != nil {
+		return res, err
+	}
+	store := h.userdataStore
+
+	switch dbKey {
+	case storedb.DATA_FIRST_NAME:
+		profileInfo, err = store.ReadEntry(ctx, sessionId, storedb.DATA_FIRST_NAME)
+		if err != nil {
+			if db.IsNotFound(err) {
+				res.Content = defaultValue
+				break
+			}
+			logg.ErrorCtxf(ctx, "Failed to read first name entry with", "key", "error", storedb.DATA_FIRST_NAME, err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_firstname_set)
+		res.Content = string(profileInfo)
+	case storedb.DATA_FAMILY_NAME:
+		profileInfo, err = store.ReadEntry(ctx, sessionId, storedb.DATA_FAMILY_NAME)
+		if err != nil {
+			if db.IsNotFound(err) {
+				res.Content = defaultValue
+				break
+			}
+			logg.ErrorCtxf(ctx, "Failed to read family name entry with", "key", "error", storedb.DATA_FAMILY_NAME, err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_familyname_set)
+		res.Content = string(profileInfo)
+
+	case storedb.DATA_GENDER:
+		profileInfo, err = store.ReadEntry(ctx, sessionId, storedb.DATA_GENDER)
+		if err != nil {
+			if db.IsNotFound(err) {
+				res.Content = defaultValue
+				break
+			}
+			logg.ErrorCtxf(ctx, "Failed to read gender entry with", "key", "error", storedb.DATA_GENDER, err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_gender_set)
+		res.Content = string(profileInfo)
+	case storedb.DATA_YOB:
+		profileInfo, err = store.ReadEntry(ctx, sessionId, storedb.DATA_YOB)
+		if err != nil {
+			if db.IsNotFound(err) {
+				res.Content = defaultValue
+				break
+			}
+			logg.ErrorCtxf(ctx, "Failed to read year of birth(yob) entry with", "key", "error", storedb.DATA_YOB, err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_yob_set)
+		res.Content = string(profileInfo)
+	case storedb.DATA_LOCATION:
+		profileInfo, err = store.ReadEntry(ctx, sessionId, storedb.DATA_LOCATION)
+		if err != nil {
+			if db.IsNotFound(err) {
+				res.Content = defaultValue
+				break
+			}
+			logg.ErrorCtxf(ctx, "Failed to read location entry with", "key", "error", storedb.DATA_LOCATION, err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_location_set)
+		res.Content = string(profileInfo)
+	case storedb.DATA_OFFERINGS:
+		profileInfo, err = store.ReadEntry(ctx, sessionId, storedb.DATA_OFFERINGS)
+		if err != nil {
+			if db.IsNotFound(err) {
+				res.Content = defaultValue
+				break
+			}
+			logg.ErrorCtxf(ctx, "Failed to read offerings entry with", "key", "error", storedb.DATA_OFFERINGS, err)
+			return res, err
+		}
+		res.FlagSet = append(res.FlagSet, flag_offerings_set)
+		res.Content = string(profileInfo)
+	case storedb.DATA_ACCOUNT_ALIAS:
+		profileInfo, err = store.ReadEntry(ctx, sessionId, storedb.DATA_ACCOUNT_ALIAS)
+		if err != nil {
+			if db.IsNotFound(err) {
+				res.Content = defaultValue
+				break
+			}
+			logg.ErrorCtxf(ctx, "Failed to read account alias entry with", "key", "error", storedb.DATA_ACCOUNT_ALIAS, err)
+			return res, err
+		}
+		alias := string(profileInfo)
+		if alias == "" {
+			res.Content = defaultValue
+		} else {
+			res.Content = alias
+		}
+	default:
+		break
+	}
+
+	return res, nil
+}
+
+// GetProfileInfo provides a comprehensive view of a user's profile.
+func (h *MenuHandlers) GetProfileInfo(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	var defaultValue string
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+	language, ok := ctx.Value("Language").(lang.Language)
+	if !ok {
+		return res, fmt.Errorf("value for 'Language' is not of type lang.Language")
+	}
+	code := language.Code
+	if code == "swa" {
+		defaultValue = "Haipo"
+	} else {
+		defaultValue = "Not Provided"
+	}
+
+	// Helper function to handle nil byte slices and convert them to string
+	getEntryOrDefault := func(entry []byte, err error) string {
+		if err != nil || entry == nil {
+			return defaultValue
+		}
+		return string(entry)
+	}
+	store := h.userdataStore
+	// Retrieve user data as strings with fallback to defaultValue
+	firstName := getEntryOrDefault(store.ReadEntry(ctx, sessionId, storedb.DATA_FIRST_NAME))
+	familyName := getEntryOrDefault(store.ReadEntry(ctx, sessionId, storedb.DATA_FAMILY_NAME))
+	yob := getEntryOrDefault(store.ReadEntry(ctx, sessionId, storedb.DATA_YOB))
+	gender := getEntryOrDefault(store.ReadEntry(ctx, sessionId, storedb.DATA_GENDER))
+	location := getEntryOrDefault(store.ReadEntry(ctx, sessionId, storedb.DATA_LOCATION))
+	offerings := getEntryOrDefault(store.ReadEntry(ctx, sessionId, storedb.DATA_OFFERINGS))
+	alias := getEntryOrDefault(store.ReadEntry(ctx, sessionId, storedb.DATA_ACCOUNT_ALIAS))
+
+	if alias != defaultValue && alias != "" {
+		alias = strings.Split(alias, ".")[0]
+	} else {
+		alias = defaultValue
+	}
+
+	// Construct the full name
+	name := person.ConstructName(firstName, familyName, defaultValue)
+
+	// Calculate age from year of birth
+	age := defaultValue
+	if yob != defaultValue {
+		if yobInt, err := strconv.Atoi(yob); err == nil {
+			age = strconv.Itoa(person.CalculateAgeWithYOB(yobInt))
+		} else {
+			return res, fmt.Errorf("invalid year of birth: %v", err)
+		}
+	}
+	switch language.Code {
+	case "eng":
+		res.Content = fmt.Sprintf(
+			"Name: %s\nGender: %s\nAge: %s\nLocation: %s\nYou provide: %s\nYour alias: %s\n",
+			name, gender, age, location, offerings, alias,
+		)
+	case "swa":
+		res.Content = fmt.Sprintf(
+			"Jina: %s\nJinsia: %s\nUmri: %s\nEneo: %s\nUnauza: %s\nLakabu yako: %s\n",
+			name, gender, age, location, offerings, alias,
+		)
+	default:
+		res.Content = fmt.Sprintf(
+			"Name: %s\nGender: %s\nAge: %s\nLocation: %s\nYou provide: %s\nYour alias: %s\n",
+			name, gender, age, location, offerings, alias,
+		)
+	}
+
+	return res, nil
+}
+
+// handles bulk updates of profile information.
+func (h *MenuHandlers) insertProfileItems(ctx context.Context, sessionId string, res *resource.Result) error {
+	var err error
+	userStore := h.userdataStore
+	profileFlagNames := []string{
+		"flag_firstname_set",
+		"flag_familyname_set",
+		"flag_yob_set",
+		"flag_gender_set",
+		"flag_location_set",
+		"flag_offerings_set",
+	}
+	profileDataKeys := []storedb.DataTyp{
+		storedb.DATA_FIRST_NAME,
+		storedb.DATA_FAMILY_NAME,
+		storedb.DATA_GENDER,
+		storedb.DATA_YOB,
+		storedb.DATA_LOCATION,
+		storedb.DATA_OFFERINGS,
+	}
+	for index, profileItem := range h.profile.ProfileItems {
+		// Ensure the profileItem is not "0"(is set)
+		if profileItem != "0" {
+			flag, _ := h.flagManager.GetFlag(profileFlagNames[index])
+			isProfileItemSet := h.st.MatchFlag(flag, true)
+			if !isProfileItemSet {
+				err = userStore.WriteEntry(ctx, sessionId, profileDataKeys[index], []byte(profileItem))
+				if err != nil {
+					logg.ErrorCtxf(ctx, "failed to write profile entry with", "key", profileDataKeys[index], "value", profileItem, "error", err)
+					return err
+				}
+				res.FlagSet = append(res.FlagSet, flag)
+			}
+		}
+	}
+	return nil
+}
+
+// UpdateAllProfileItems  is used to persist all the  new profile information and setup  the required profile flags.
+func (h *MenuHandlers) UpdateAllProfileItems(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")
+	}
+	err := h.insertProfileItems(ctx, sessionId, &res)
+	if err != nil {
+		return res, err
+	}
+	return res, nil
+}

handlers/application/send.go

@@ -0,0 +1,380 @@
+package application
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/grassrootseconomics/common/identity"
+	"git.grassecon.net/grassrootseconomics/common/phone"
+	"git.grassecon.net/grassrootseconomics/sarafu-api/models"
+	"git.grassecon.net/grassrootseconomics/sarafu-vise/config"
+	"git.grassecon.net/grassrootseconomics/sarafu-vise/store"
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+	"github.com/grassrootseconomics/ethutils"
+	"gopkg.in/leonelquinteros/gotext.v1"
+)
+
+// ValidateRecipient validates that the given input is valid.
+//
+// TODO: split up functino
+func (h *MenuHandlers) ValidateRecipient(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	var AliasAddressResult string
+	var AliasAddress *models.AliasAddress
+	store := h.userdataStore
+
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+	flag_invalid_recipient, _ := h.flagManager.GetFlag("flag_invalid_recipient")
+	flag_invalid_recipient_with_invite, _ := h.flagManager.GetFlag("flag_invalid_recipient_with_invite")
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_call_error")
+
+	// remove white spaces
+	recipient := strings.ReplaceAll(string(input), " ", "")
+
+	if recipient != "0" {
+		recipientType, err := identity.CheckRecipient(recipient)
+		if err != nil {
+			// Invalid recipient format (not a phone number, address, or valid alias format)
+			res.FlagSet = append(res.FlagSet, flag_invalid_recipient)
+			res.Content = recipient
+
+			return res, nil
+		}
+
+		// save the recipient as the temporaryRecipient
+		err = store.WriteEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE, []byte(recipient))
+		if err != nil {
+			logg.ErrorCtxf(ctx, "failed to write temporaryRecipient entry with", "key", storedb.DATA_TEMPORARY_VALUE, "value", recipient, "error", err)
+			return res, err
+		}
+
+		switch recipientType {
+		case "phone number":
+			// format the phone number
+			formattedNumber, err := phone.FormatPhoneNumber(recipient)
+			if err != nil {
+				logg.ErrorCtxf(ctx, "Failed to format the phone number: %s", recipient, "error", err)
+				return res, err
+			}
+
+			// Check if the phone number is registered
+			publicKey, err := store.ReadEntry(ctx, formattedNumber, storedb.DATA_PUBLIC_KEY)
+			if err != nil {
+				if db.IsNotFound(err) {
+					logg.InfoCtxf(ctx, "Unregistered phone number: %s", recipient)
+					res.FlagSet = append(res.FlagSet, flag_invalid_recipient_with_invite)
+					res.Content = recipient
+					return res, nil
+				}
+
+				logg.ErrorCtxf(ctx, "failed to read publicKey entry with", "key", storedb.DATA_PUBLIC_KEY, "error", err)
+				return res, err
+			}
+
+			// Save the publicKey as the recipient
+			err = store.WriteEntry(ctx, sessionId, storedb.DATA_RECIPIENT, publicKey)
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write recipient entry with", "key", storedb.DATA_RECIPIENT, "value", string(publicKey), "error", err)
+				return res, err
+			}
+
+		case "address":
+			// checksum the address
+			address := ethutils.ChecksumAddress(recipient)
+
+			// Save the valid Ethereum address as the recipient
+			err = store.WriteEntry(ctx, sessionId, storedb.DATA_RECIPIENT, []byte(address))
+			if err != nil {
+				logg.ErrorCtxf(ctx, "failed to write recipient entry with", "key", storedb.DATA_RECIPIENT, "value", recipient, "error", err)
+				return res, err
+			}
+
+		case "alias":
+			if strings.Contains(recipient, ".") {
+				AliasAddress, err = h.accountService.CheckAliasAddress(ctx, recipient)
+				if err == nil {
+					AliasAddressResult = AliasAddress.Address
+				} else {
+					logg.ErrorCtxf(ctx, "failed to resolve alias", "alias", recipient, "error_alias_check", err)
+				}
+			} else {
+				//Perform a search for each search domain,break on first match
+				for _, domain := range config.SearchDomains() {
+					fqdn := fmt.Sprintf("%s.%s", recipient, domain)
+					logg.InfoCtxf(ctx, "Resolving with fqdn alias", "alias", fqdn)
+					AliasAddress, err = h.accountService.CheckAliasAddress(ctx, fqdn)
+					if err == nil {
+						res.FlagReset = append(res.FlagReset, flag_api_error)
+						AliasAddressResult = AliasAddress.Address
+						continue
+					} else {
+						res.FlagSet = append(res.FlagSet, flag_api_error)
+						logg.ErrorCtxf(ctx, "failed to resolve alias", "alias", recipient, "error_alias_check", err)
+						return res, nil
+					}
+				}
+			}
+			if AliasAddressResult == "" {
+				res.Content = recipient
+				res.FlagSet = append(res.FlagSet, flag_invalid_recipient)
+				return res, nil
+			} else {
+				err = store.WriteEntry(ctx, sessionId, storedb.DATA_RECIPIENT, []byte(AliasAddressResult))
+				if err != nil {
+					logg.ErrorCtxf(ctx, "failed to write recipient entry with", "key", storedb.DATA_RECIPIENT, "value", AliasAddressResult, "error", err)
+					return res, err
+				}
+			}
+		}
+	}
+
+	return res, nil
+}
+
+// TransactionReset resets the previous transaction data (Recipient and Amount)
+// as well as the invalid flags.
+func (h *MenuHandlers) TransactionReset(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_invalid_recipient, _ := h.flagManager.GetFlag("flag_invalid_recipient")
+	flag_invalid_recipient_with_invite, _ := h.flagManager.GetFlag("flag_invalid_recipient_with_invite")
+	store := h.userdataStore
+	err = store.WriteEntry(ctx, sessionId, storedb.DATA_AMOUNT, []byte(""))
+	if err != nil {
+		return res, nil
+	}
+
+	err = store.WriteEntry(ctx, sessionId, storedb.DATA_RECIPIENT, []byte(""))
+	if err != nil {
+		return res, nil
+	}
+
+	res.FlagReset = append(res.FlagReset, flag_invalid_recipient, flag_invalid_recipient_with_invite)
+
+	return res, nil
+}
+
+// ResetTransactionAmount resets the transaction amount and invalid flag.
+func (h *MenuHandlers) ResetTransactionAmount(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_invalid_amount, _ := h.flagManager.GetFlag("flag_invalid_amount")
+	store := h.userdataStore
+	err = store.WriteEntry(ctx, sessionId, storedb.DATA_AMOUNT, []byte(""))
+	if err != nil {
+		return res, nil
+	}
+
+	res.FlagReset = append(res.FlagReset, flag_invalid_amount)
+
+	return res, nil
+}
+
+// MaxAmount gets the current balance from the API and sets it as
+// the result content.
+func (h *MenuHandlers) MaxAmount(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")
+	}
+	store := h.userdataStore
+
+	activeBal, err := store.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_BAL)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read activeBal entry with", "key", storedb.DATA_ACTIVE_BAL, "error", err)
+		return res, err
+	}
+
+	res.Content = string(activeBal)
+
+	return res, nil
+}
+
+// ValidateAmount ensures that the given input is a valid amount and that
+// it is not more than the current balance.
+func (h *MenuHandlers) ValidateAmount(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")
+	}
+	flag_invalid_amount, _ := h.flagManager.GetFlag("flag_invalid_amount")
+	userStore := h.userdataStore
+
+	var balanceValue float64
+
+	// retrieve the active balance
+	activeBal, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_BAL)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read activeBal entry with", "key", storedb.DATA_ACTIVE_BAL, "error", err)
+		return res, err
+	}
+	balanceValue, err = strconv.ParseFloat(string(activeBal), 64)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "Failed to convert the activeBal to a float", "error", err)
+		return res, err
+	}
+
+	// Extract numeric part from the input amount
+	amountStr := strings.TrimSpace(string(input))
+	inputAmount, err := strconv.ParseFloat(amountStr, 64)
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_invalid_amount)
+		res.Content = amountStr
+		return res, nil
+	}
+
+	if inputAmount > balanceValue {
+		res.FlagSet = append(res.FlagSet, flag_invalid_amount)
+		res.Content = amountStr
+		return res, nil
+	}
+
+	// Format the amount to 2 decimal places before saving (truncated)
+	formattedAmount, err := store.TruncateDecimalString(amountStr, 2)
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_invalid_amount)
+		res.Content = amountStr
+		return res, nil
+	}
+
+	err = userStore.WriteEntry(ctx, sessionId, storedb.DATA_AMOUNT, []byte(formattedAmount))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to write amount entry with", "key", storedb.DATA_AMOUNT, "value", formattedAmount, "error", err)
+		return res, err
+	}
+
+	res.Content = formattedAmount
+	return res, nil
+}
+
+// GetRecipient returns the transaction recipient phone number from the gdbm.
+func (h *MenuHandlers) GetRecipient(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
+	recipient, _ := store.ReadEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE)
+	if len(recipient) == 0 {
+		logg.ErrorCtxf(ctx, "recipient is empty", "key", storedb.DATA_TEMPORARY_VALUE)
+		return res, fmt.Errorf("Data error encountered")
+	}
+
+	res.Content = string(recipient)
+
+	return res, nil
+}
+
+// GetSender returns the sessionId (phoneNumber).
+func (h *MenuHandlers) GetSender(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")
+	}
+
+	res.Content = sessionId
+
+	return res, nil
+}
+
+// GetAmount retrieves the amount from teh Gdbm Db.
+func (h *MenuHandlers) GetAmount(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
+
+	// retrieve the active symbol
+	activeSym, err := store.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_SYM)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read activeSym entry with", "key", storedb.DATA_ACTIVE_SYM, "error", err)
+		return res, err
+	}
+
+	amount, _ := store.ReadEntry(ctx, sessionId, storedb.DATA_AMOUNT)
+
+	res.Content = fmt.Sprintf("%s %s", string(amount), string(activeSym))
+
+	return res, nil
+}
+
+// InitiateTransaction calls the TokenTransfer and returns a confirmation based on the result.
+func (h *MenuHandlers) InitiateTransaction(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_account_authorized, _ := h.flagManager.GetFlag("flag_account_authorized")
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	data, err := store.ReadTransactionData(ctx, h.userdataStore, sessionId)
+	if err != nil {
+		return res, err
+	}
+
+	finalAmountStr, err := store.ParseAndScaleAmount(data.Amount, data.ActiveDecimal)
+	if err != nil {
+		return res, err
+	}
+
+	// Call TokenTransfer
+	r, err := h.accountService.TokenTransfer(ctx, finalAmountStr, data.PublicKey, data.Recipient, data.ActiveAddress)
+	if err != nil {
+		flag_api_error, _ := h.flagManager.GetFlag("flag_api_call_error")
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		res.Content = l.Get("Your request failed. Please try again later.")
+		logg.ErrorCtxf(ctx, "failed on TokenTransfer", "error", err)
+		return res, nil
+	}
+
+	trackingId := r.TrackingId
+	logg.InfoCtxf(ctx, "TokenTransfer", "trackingId", trackingId)
+
+	res.Content = l.Get(
+		"Your request has been sent. %s will receive %s %s from %s.",
+		data.TemporaryValue,
+		data.Amount,
+		data.ActiveSym,
+		sessionId,
+	)
+
+	res.FlagReset = append(res.FlagReset, flag_account_authorized)
+	return res, nil
+}

handlers/application/transactions.go

@@ -0,0 +1,190 @@
+package application
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/grassrootseconomics/sarafu-vise/store"
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+)
+
+// CheckTransactions retrieves the transactions from the API using the "PublicKey" and stores to prefixDb.
+func (h *MenuHandlers) CheckTransactions(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")
+	}
+
+	flag_no_transfers, _ := h.flagManager.GetFlag("flag_no_transfers")
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_error")
+
+	userStore := h.userdataStore
+	logdb := h.logDb
+	publicKey, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_PUBLIC_KEY)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read publicKey entry with", "key", storedb.DATA_PUBLIC_KEY, "error", err)
+		return res, err
+	}
+
+	// Fetch transactions from the API using the public key
+	transactionsResp, err := h.accountService.FetchTransactions(ctx, string(publicKey))
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		logg.ErrorCtxf(ctx, "failed on FetchTransactions", "error", err)
+		return res, err
+	}
+	res.FlagReset = append(res.FlagReset, flag_api_error)
+
+	// Return if there are no transactions
+	if len(transactionsResp) == 0 {
+		res.FlagSet = append(res.FlagSet, flag_no_transfers)
+		return res, nil
+	}
+
+	data := store.ProcessTransfers(transactionsResp)
+
+	// Store all transaction data
+	dataMap := map[storedb.DataTyp]string{
+		storedb.DATA_TX_SENDERS:    data.Senders,
+		storedb.DATA_TX_RECIPIENTS: data.Recipients,
+		storedb.DATA_TX_VALUES:     data.TransferValues,
+		storedb.DATA_TX_ADDRESSES:  data.Addresses,
+		storedb.DATA_TX_HASHES:     data.TxHashes,
+		storedb.DATA_TX_DATES:      data.Dates,
+		storedb.DATA_TX_SYMBOLS:    data.Symbols,
+		storedb.DATA_TX_DECIMALS:   data.Decimals,
+	}
+
+	for key, value := range dataMap {
+		if err := h.prefixDb.Put(ctx, []byte(storedb.ToBytes(key)), []byte(value)); err != nil {
+			logg.ErrorCtxf(ctx, "failed to write to prefixDb", "error", err)
+			return res, err
+		}
+		err = logdb.WriteLogEntry(ctx, sessionId, key, []byte(value))
+		if err != nil {
+			logg.DebugCtxf(ctx, "Failed to write tx db log entry", "key", key, "value", value)
+		}
+	}
+
+	res.FlagReset = append(res.FlagReset, flag_no_transfers)
+
+	return res, nil
+}
+
+// GetTransactionsList fetches the list of transactions and formats them.
+func (h *MenuHandlers) GetTransactionsList(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")
+	}
+
+	userStore := h.userdataStore
+	publicKey, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_PUBLIC_KEY)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read publicKey entry with", "key", storedb.DATA_PUBLIC_KEY, "error", err)
+		return res, err
+	}
+
+	// Read transactions from the store and format them
+	TransactionSenders, err := h.prefixDb.Get(ctx, storedb.ToBytes(storedb.DATA_TX_SENDERS))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "Failed to read the TransactionSenders from prefixDb", "error", err)
+		return res, err
+	}
+	TransactionSyms, err := h.prefixDb.Get(ctx, storedb.ToBytes(storedb.DATA_TX_SYMBOLS))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "Failed to read the TransactionSyms from prefixDb", "error", err)
+		return res, err
+	}
+	TransactionValues, err := h.prefixDb.Get(ctx, storedb.ToBytes(storedb.DATA_TX_VALUES))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "Failed to read the TransactionValues from prefixDb", "error", err)
+		return res, err
+	}
+	TransactionDates, err := h.prefixDb.Get(ctx, storedb.ToBytes(storedb.DATA_TX_DATES))
+	if err != nil {
+		logg.ErrorCtxf(ctx, "Failed to read the TransactionDates from prefixDb", "error", err)
+		return res, err
+	}
+
+	// Parse the data
+	senders := strings.Split(string(TransactionSenders), "\n")
+	syms := strings.Split(string(TransactionSyms), "\n")
+	values := strings.Split(string(TransactionValues), "\n")
+	dates := strings.Split(string(TransactionDates), "\n")
+
+	var formattedTransactions []string
+	for i := 0; i < len(senders); i++ {
+		sender := strings.TrimSpace(senders[i])
+		sym := strings.TrimSpace(syms[i])
+		value := strings.TrimSpace(values[i])
+		date := strings.Split(strings.TrimSpace(dates[i]), " ")[0]
+
+		status := "Received"
+		if sender == string(publicKey) {
+			status = "Sent"
+		}
+
+		// Use the ReplaceSeparator function for the menu separator
+		transactionLine := fmt.Sprintf("%d%s%s %s %s %s", i+1, h.ReplaceSeparatorFunc(":"), status, value, sym, date)
+		formattedTransactions = append(formattedTransactions, transactionLine)
+	}
+
+	res.Content = strings.Join(formattedTransactions, "\n")
+
+	return res, nil
+}
+
+// ViewTransactionStatement retrieves the transaction statement
+// and displays it to the user.
+func (h *MenuHandlers) ViewTransactionStatement(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")
+	}
+	userStore := h.userdataStore
+	publicKey, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_PUBLIC_KEY)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read publicKey entry with", "key", storedb.DATA_PUBLIC_KEY, "error", err)
+		return res, err
+	}
+
+	flag_incorrect_statement, _ := h.flagManager.GetFlag("flag_incorrect_statement")
+
+	inputStr := string(input)
+	if inputStr == "0" || inputStr == "99" || inputStr == "11" || inputStr == "22" {
+		res.FlagReset = append(res.FlagReset, flag_incorrect_statement)
+		return res, nil
+	}
+
+	// Convert input string to integer
+	index, err := strconv.Atoi(strings.TrimSpace(inputStr))
+	if err != nil {
+		return res, fmt.Errorf("invalid input: must be a number between 1 and 10")
+	}
+
+	if index < 1 || index > 10 {
+		return res, fmt.Errorf("invalid input: index must be between 1 and 10")
+	}
+
+	statement, err := store.GetTransferData(ctx, h.prefixDb, string(publicKey), index)
+	if err != nil {
+		return res, fmt.Errorf("failed to retrieve transfer data: %v", err)
+	}
+
+	if statement == "" {
+		res.FlagSet = append(res.FlagSet, flag_incorrect_statement)
+		return res, nil
+	}
+
+	res.FlagReset = append(res.FlagReset, flag_incorrect_statement)
+	res.Content = statement
+
+	return res, nil
+}

handlers/application/upsell.go

@@ -0,0 +1,46 @@
+package application
+
+import (
+	"context"
+	"fmt"
+
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/grassrootseconomics/common/phone"
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+	"gopkg.in/leonelquinteros/gotext.v1"
+)
+
+// InviteValidRecipient sends an invitation to the valid phone number.
+func (h *MenuHandlers) InviteValidRecipient(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	store := h.userdataStore
+	smsservice := h.smsService
+
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	recipient, err := store.ReadEntry(ctx, sessionId, storedb.DATA_TEMPORARY_VALUE)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "Failed to read invalid recipient info", "error", err)
+		return res, err
+	}
+
+	if !phone.IsValidPhoneNumber(string(recipient)) {
+		logg.InfoCtxf(ctx, "corrupted recipient", "key", storedb.DATA_TEMPORARY_VALUE, "recipient", recipient)
+		return res, nil
+	}
+
+	_, err = smsservice.Accountservice.SendUpsellSMS(ctx, sessionId, string(recipient))
+	if err != nil {
+		res.Content = l.Get("Your invite request for %s to Sarafu Network failed. Please try again later.", string(recipient))
+		return res, nil
+	}
+	res.Content = l.Get("Your invitation to %s to join Sarafu Network has been sent.", string(recipient))
+	return res, nil
+}

handlers/application/vouchers.go

@@ -0,0 +1,262 @@
+package application
+
+import (
+	"context"
+	"fmt"
+
+	"git.defalsify.org/vise.git/db"
+	"git.defalsify.org/vise.git/resource"
+	"git.grassecon.net/grassrootseconomics/sarafu-vise/store"
+	storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
+	dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
+	"gopkg.in/leonelquinteros/gotext.v1"
+)
+
+// ManageVouchers retrieves the token holdings from the API using the "PublicKey" and
+// 1. sets the first as the default voucher if no active voucher is set.
+// 2. Stores list of vouchers
+// 3. updates the balance of the active voucher
+func (h *MenuHandlers) ManageVouchers(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	userStore := h.userdataStore
+	logdb := h.logDb
+
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+
+	flag_no_active_voucher, _ := h.flagManager.GetFlag("flag_no_active_voucher")
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_call_error")
+
+	publicKey, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_PUBLIC_KEY)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read publicKey entry", "key", storedb.DATA_PUBLIC_KEY, "error", err)
+		return res, err
+	}
+
+	// Fetch vouchers from API
+	vouchersResp, err := h.accountService.FetchVouchers(ctx, string(publicKey))
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		return res, nil
+	}
+	res.FlagReset = append(res.FlagReset, flag_api_error)
+
+	if len(vouchersResp) == 0 {
+		res.FlagSet = append(res.FlagSet, flag_no_active_voucher)
+		return res, nil
+	}
+
+	res.FlagReset = append(res.FlagReset, flag_no_active_voucher)
+
+	// Check if user has an active voucher with proper error handling
+	activeSym, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_SYM)
+	if err != nil {
+		if db.IsNotFound(err) {
+			// No active voucher, set the first one as default
+			firstVoucher := vouchersResp[0]
+			defaultSym := firstVoucher.TokenSymbol
+			defaultBal := firstVoucher.Balance
+			defaultDec := firstVoucher.TokenDecimals
+			defaultAddr := firstVoucher.TokenAddress
+
+			// Scale down the balance
+			scaledBalance := store.ScaleDownBalance(defaultBal, defaultDec)
+
+			firstVoucherMap := map[storedb.DataTyp]string{
+				storedb.DATA_ACTIVE_SYM:     defaultSym,
+				storedb.DATA_ACTIVE_BAL:     scaledBalance,
+				storedb.DATA_ACTIVE_DECIMAL: defaultDec,
+				storedb.DATA_ACTIVE_ADDRESS: defaultAddr,
+			}
+
+			for key, value := range firstVoucherMap {
+				if err := userStore.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+					logg.ErrorCtxf(ctx, "Failed to write active voucher data", "key", key, "error", err)
+					return res, err
+				}
+				err = logdb.WriteLogEntry(ctx, sessionId, key, []byte(value))
+				if err != nil {
+					logg.DebugCtxf(ctx, "Failed to write voucher db log entry", "key", key, "value", value)
+				}
+			}
+
+			logg.InfoCtxf(ctx, "Default voucher set", "symbol", defaultSym, "balance", defaultBal, "decimals", defaultDec, "address", defaultAddr)
+		} else {
+			logg.ErrorCtxf(ctx, "failed to read activeSym entry with", "key", storedb.DATA_ACTIVE_SYM, "error", err)
+			return res, err
+		}
+	} else {
+		// Update active voucher balance
+		activeSymStr := string(activeSym)
+
+		// Find the matching voucher data
+		var activeData *dataserviceapi.TokenHoldings
+		for _, voucher := range vouchersResp {
+			if voucher.TokenSymbol == activeSymStr {
+				activeData = &voucher
+				break
+			}
+		}
+
+		if activeData == nil {
+			logg.ErrorCtxf(ctx, "activeSym not found in vouchers", "activeSym", activeSymStr)
+			return res, fmt.Errorf("activeSym %s not found in vouchers", activeSymStr)
+		}
+
+		// Scale down the balance
+		scaledBalance := store.ScaleDownBalance(activeData.Balance, activeData.TokenDecimals)
+
+		// Update the balance field with the scaled value
+		activeData.Balance = scaledBalance
+
+		// Pass the matching voucher data to UpdateVoucherData
+		if err := store.UpdateVoucherData(ctx, h.userdataStore, sessionId, activeData); err != nil {
+			logg.ErrorCtxf(ctx, "failed on UpdateVoucherData", "error", err)
+			return res, err
+		}
+	}
+
+	// Store all voucher data
+	data := store.ProcessVouchers(vouchersResp)
+	dataMap := map[storedb.DataTyp]string{
+		storedb.DATA_VOUCHER_SYMBOLS:   data.Symbols,
+		storedb.DATA_VOUCHER_BALANCES:  data.Balances,
+		storedb.DATA_VOUCHER_DECIMALS:  data.Decimals,
+		storedb.DATA_VOUCHER_ADDRESSES: data.Addresses,
+	}
+
+	// Write data entries
+	for key, value := range dataMap {
+		if err := userStore.WriteEntry(ctx, sessionId, key, []byte(value)); err != nil {
+			logg.ErrorCtxf(ctx, "Failed to write data entry for sessionId: %s", sessionId, "key", key, "error", err)
+			continue
+		}
+	}
+
+	return res, nil
+}
+
+// GetVoucherList fetches the list of vouchers and formats them.
+func (h *MenuHandlers) GetVoucherList(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")
+	}
+
+	userStore := h.userdataStore
+
+	// Read vouchers from the store
+	voucherData, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_VOUCHER_SYMBOLS)
+	logg.InfoCtxf(ctx, "reading GetVoucherList entries for sessionId: %s", sessionId, "key", storedb.DATA_VOUCHER_SYMBOLS, "voucherData", voucherData)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read voucherData entires with", "key", storedb.DATA_VOUCHER_SYMBOLS, "error", err)
+		return res, err
+	}
+
+	formattedData := h.ReplaceSeparatorFunc(string(voucherData))
+
+	logg.InfoCtxf(ctx, "final output for sessionId: %s", sessionId, "key", storedb.DATA_VOUCHER_SYMBOLS, "formattedData", formattedData)
+
+	res.Content = string(formattedData)
+
+	return res, nil
+}
+
+// ViewVoucher retrieves the token holding and balance from the subprefixDB
+// and displays it to the user for them to select it.
+func (h *MenuHandlers) ViewVoucher(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")
+	}
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	flag_incorrect_voucher, _ := h.flagManager.GetFlag("flag_incorrect_voucher")
+
+	inputStr := string(input)
+
+	metadata, err := store.GetVoucherData(ctx, h.userdataStore, sessionId, inputStr)
+	if err != nil {
+		return res, fmt.Errorf("failed to retrieve voucher data: %v", err)
+	}
+
+	if metadata == nil {
+		res.FlagSet = append(res.FlagSet, flag_incorrect_voucher)
+		return res, nil
+	}
+
+	if err := store.StoreTemporaryVoucher(ctx, h.userdataStore, sessionId, metadata); err != nil {
+		logg.ErrorCtxf(ctx, "failed on StoreTemporaryVoucher", "error", err)
+		return res, err
+	}
+
+	res.FlagReset = append(res.FlagReset, flag_incorrect_voucher)
+	res.Content = l.Get("Symbol: %s\nBalance: %s", metadata.TokenSymbol, metadata.Balance)
+
+	return res, nil
+}
+
+// SetVoucher retrieves the temp voucher data and sets it as the active data.
+func (h *MenuHandlers) SetVoucher(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")
+	}
+
+	// Get temporary data
+	tempData, err := store.GetTemporaryVoucherData(ctx, h.userdataStore, sessionId)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed on GetTemporaryVoucherData", "error", err)
+		return res, err
+	}
+
+	// Set as active and clear temporary data
+	if err := store.UpdateVoucherData(ctx, h.userdataStore, sessionId, tempData); err != nil {
+		logg.ErrorCtxf(ctx, "failed on UpdateVoucherData", "error", err)
+		return res, err
+	}
+
+	res.Content = tempData.TokenSymbol
+	return res, nil
+}
+
+// GetVoucherDetails retrieves the voucher details.
+func (h *MenuHandlers) GetVoucherDetails(ctx context.Context, sym string, input []byte) (resource.Result, error) {
+	var res resource.Result
+	store := h.userdataStore
+	sessionId, ok := ctx.Value("SessionId").(string)
+	if !ok {
+		return res, fmt.Errorf("missing session")
+	}
+	flag_api_error, _ := h.flagManager.GetFlag("flag_api_call_error")
+
+	// get the active address
+	activeAddress, err := store.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_ADDRESS)
+	if err != nil {
+		logg.ErrorCtxf(ctx, "failed to read activeAddress entry with", "key", storedb.DATA_ACTIVE_ADDRESS, "error", err)
+		return res, err
+	}
+
+	// use the voucher contract address to get the data from the API
+	voucherData, err := h.accountService.VoucherData(ctx, string(activeAddress))
+	if err != nil {
+		res.FlagSet = append(res.FlagSet, flag_api_error)
+		return res, nil
+	}
+	res.FlagReset = append(res.FlagReset, flag_api_error)
+
+	res.Content = fmt.Sprintf(
+		"Name: %s\nSymbol: %s\nCommodity: %s\nLocation: %s", voucherData.TokenName, voucherData.TokenSymbol, voucherData.TokenCommodity, voucherData.TokenLocation,
+	)
+
+	return res, nil
+}