grassrootseconomics/sarafu-vise
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use the recipient's phone number to read swap related data

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This commit is contained in:
Alfred Kamanda 2025-08-25 17:24:58 +03:00
parent 5a09d33be0
commit 0f8c2f9270
Signed by: Alfred-mk
GPG Key ID: E60B2165A97F4D41
1 changed files with 54 additions and 22 deletions
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76
handlers/application/send.go
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@ -14,6 +14,7 @@ import (
"git.grassecon.net/grassrootseconomics/sarafu-vise/store"
storedb "git.grassecon.net/grassrootseconomics/sarafu-vise/store/db"
"github.com/grassrootseconomics/ethutils"
dataserviceapi "github.com/grassrootseconomics/ussd-data-service/pkg/api"
"gopkg.in/leonelquinteros/gotext.v1"
)
@ -89,20 +90,20 @@ func (h *MenuHandlers) handlePhoneNumber(ctx context.Context, sessionId, recipie
return *res, err
}
senderSym, err := store.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_SYM)
senderActiveAddress, err := store.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_ADDRESS)
if err != nil {
logg.ErrorCtxf(ctx, "Failed to read sender activeSym", "error", err)
logg.ErrorCtxf(ctx, "Failed to read sender senderActiveAddress", "error", err)
return *res, err
}
recipientActiveToken, _ := store.ReadEntry(ctx, formattedNumber, storedb.DATA_ACTIVE_SYM)
recipientActiveAddress, _ := store.ReadEntry(ctx, formattedNumber, storedb.DATA_ACTIVE_ADDRESS)
txType := "swap"
// recipient has no active token → normal transaction
if recipientActiveToken == nil {
if recipientActiveAddress == nil {
txType = "normal"
} else if senderSym != nil && string(senderSym) == string(recipientActiveToken) {
} else if senderActiveAddress != nil && string(senderActiveAddress) == string(recipientActiveAddress) {
// recipient has active token same as sender → normal transaction
txType = "normal"
}
@ -113,12 +114,10 @@ func (h *MenuHandlers) handlePhoneNumber(ctx context.Context, sessionId, recipie
return *res, err
}
// only save recipient’s active token if it exists
if recipientActiveToken != nil {
if err := store.WriteEntry(ctx, sessionId, storedb.DATA_RECIPIENT_ACTIVE_TOKEN, recipientActiveToken); err != nil {
logg.ErrorCtxf(ctx, "Failed to write recipient active token", "error", err)
return *res, err
}
// save the recipient's phone number
if err := store.WriteEntry(ctx, sessionId, storedb.DATA_RECIPIENT_PHONE_NUMBER, []byte(formattedNumber)); err != nil {
logg.ErrorCtxf(ctx, "Failed to write recipient's phone number", "type", txType, "error", err)
return *res, err
}
return *res, nil
@ -219,7 +218,7 @@ func (h *MenuHandlers) TransactionReset(ctx context.Context, sym string, input [
return res, nil
}
err = store.WriteEntry(ctx, sessionId, storedb.DATA_RECIPIENT_ACTIVE_TOKEN, []byte(""))
err = store.WriteEntry(ctx, sessionId, storedb.DATA_RECIPIENT_PHONE_NUMBER, []byte(""))
if err != nil {
return res, nil
}
@ -264,6 +263,7 @@ func (h *MenuHandlers) MaxAmount(ctx context.Context, sym string, input []byte)
}
flag_api_error, _ := h.flagManager.GetFlag("flag_api_error")
flag_swap_transaction, _ := h.flagManager.GetFlag("flag_swap_transaction")
userStore := h.userdataStore
// Fetch session data
@ -277,16 +277,22 @@ func (h *MenuHandlers) MaxAmount(ctx context.Context, sym string, input []byte)
// If normal transaction, return balance
if string(transactionType) == "normal" {
res.FlagReset = append(res.FlagReset, flag_swap_transaction)
res.Content = fmt.Sprintf("%s %s", formattedBalance, string(activeSym))
return res, nil
}
// Get recipient token address
recipientTokenAddress, err := h.getRecipientTokenAddress(ctx, sessionId)
res.FlagSet = append(res.FlagSet, flag_swap_transaction)
// Get the recipient's phone number to read other data items
recipientPhoneNumber, err := userStore.ReadEntry(ctx, sessionId, storedb.DATA_RECIPIENT_PHONE_NUMBER)
if err != nil {
// fallback to normal
res.Content = fmt.Sprintf("%s %s", formattedBalance, string(activeSym))
return res, nil
// invalid state
return res, err
}
recipientActiveSym, recipientActiveAddress, recipientActiveDecimal, err := h.getRecipientData(ctx, string(recipientPhoneNumber))
if err != nil {
return res, err
}
// Resolve active pool address
@ -307,7 +313,7 @@ func (h *MenuHandlers) MaxAmount(ctx context.Context, sym string, input []byte)
}
// Calculate max swappable amount
maxStr, err := h.calculateSwapMaxAmount(ctx, activePoolAddress, activeAddress, recipientTokenAddress, publicKey, activeDecimal)
maxStr, err := h.calculateSwapMaxAmount(ctx, activePoolAddress, activeAddress, recipientActiveAddress, publicKey, activeDecimal)
if err != nil {
res.FlagSet = append(res.FlagSet, flag_api_error)
return res, err
@ -327,6 +333,20 @@ func (h *MenuHandlers) MaxAmount(ctx context.Context, sym string, input []byte)
return res, err
}
// save swap related data for the swap preview
metadata := &dataserviceapi.TokenHoldings{
TokenSymbol: string(recipientActiveSym),
Balance: formattedBalance, //not used
TokenDecimals: string(recipientActiveDecimal),
TokenAddress: string(recipientActiveAddress),
}
// 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
}
res.Content = fmt.Sprintf("%s %s", maxStr, string(activeSym))
return res, nil
}
@ -355,16 +375,28 @@ func (h *MenuHandlers) getSessionData(ctx context.Context, sessionId string) (tr
return
}
activeDecimal, err = store.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_DECIMAL)
if err != nil {
return
}
return
}
func (h *MenuHandlers) getRecipientTokenAddress(ctx context.Context, sessionId string) ([]byte, error) {
func (h *MenuHandlers) getRecipientData(ctx context.Context, sessionId string) (recipientActiveSym, recipientActiveAddress, recipientActiveDecimal []byte, err error) {
store := h.userdataStore
recipientPhone, err := store.ReadEntry(ctx, sessionId, storedb.DATA_RECIPIENT_PHONE_NUMBER)
recipientActiveSym, err = store.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_SYM)
if err != nil {
return nil, err
return
}
return store.ReadEntry(ctx, string(recipientPhone), storedb.DATA_ACTIVE_ADDRESS)
recipientActiveAddress, err = store.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_ADDRESS)
if err != nil {
return
}
recipientActiveDecimal, err = store.ReadEntry(ctx, sessionId, storedb.DATA_ACTIVE_DECIMAL)
if err != nil {
return
}
return
}
func (h *MenuHandlers) resolveActivePoolAddress(ctx context.Context, sessionId string) ([]byte, error) {