internal/handlers/handlerservice.go

@@ -80,6 +80,7 @@ func (ls *LocalHandlerService) GetHandler(accountService remote.AccountServiceIn
 	ls.DbRs.AddLocalFunc("check_balance", ussdHandlers.CheckBalance)
 	ls.DbRs.AddLocalFunc("validate_recipient", ussdHandlers.ValidateRecipient)
 	ls.DbRs.AddLocalFunc("transaction_reset", ussdHandlers.TransactionReset)
+	ls.DbRs.AddLocalFunc("invite_valid_recipient", ussdHandlers.InviteValidRecipient)
 	ls.DbRs.AddLocalFunc("max_amount", ussdHandlers.MaxAmount)
 	ls.DbRs.AddLocalFunc("validate_amount", ussdHandlers.ValidateAmount)
 	ls.DbRs.AddLocalFunc("reset_transaction_amount", ussdHandlers.ResetTransactionAmount)

internal/handlers/ussd/menuhandler.go

@@ -929,7 +929,7 @@ func (h *Handlers) ValidateBlockedNumber(ctx context.Context, sym string, input
 // ValidateRecipient validates that the given input is a valid phone number.
 func (h *Handlers) ValidateRecipient(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	var res resource.Result
-	var err error
+	store := h.userdataStore
 
 	sessionId, ok := ctx.Value("SessionId").(string)
 	if !ok {
@@ -939,18 +939,41 @@ func (h *Handlers) ValidateRecipient(ctx context.Context, sym string, input []by
 	recipient := string(input)
 
 	flag_invalid_recipient, _ := h.flagManager.GetFlag("flag_invalid_recipient")
+	flag_invalid_recipient_with_invite, _ := h.flagManager.GetFlag("flag_invalid_recipient_with_invite")
 
 	if recipient != "0" {
-		// mimic invalid number check
-		if recipient == "000" {
+		if !isValidPhoneNumber(recipient) {
 			res.FlagSet = append(res.FlagSet, flag_invalid_recipient)
 			res.Content = recipient
 
 			return res, nil
 		}
-		store := h.userdataStore
-		err = store.WriteEntry(ctx, sessionId, common.DATA_RECIPIENT, []byte(recipient))
+
+		publicKey, err := store.ReadEntry(ctx, recipient, common.DATA_PUBLIC_KEY)
 		if err != nil {
+			if db.IsNotFound(err) {
+				logg.InfoCtxf(ctx, "Unregistered number")
+
+				// save the recipient as the temporaryInvitedNumber
+				err = store.WriteEntry(ctx, sessionId, common.DATA_TEMPORARY_VALUE, []byte(recipient))
+				if err != nil {
+					logg.ErrorCtxf(ctx, "failed to write temporaryInvitedNumber entry with", "key", common.DATA_TEMPORARY_VALUE, "value", recipient, "error", err)
+					return res, err
+				}
+
+				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", common.DATA_PUBLIC_KEY, "error", err)
+			return res, err
+		}
+
+		err = store.WriteEntry(ctx, sessionId, common.DATA_RECIPIENT, publicKey)
+		if err != nil {
+			logg.ErrorCtxf(ctx, "failed to write recipient entry with", "key", common.DATA_RECIPIENT, "value", string(publicKey), "error", err)
 			return res, nil
 		}
 	}
@@ -987,6 +1010,31 @@ func (h *Handlers) TransactionReset(ctx context.Context, sym string, input []byt
 	return res, nil
 }
 
+// InviteValidRecipient sends an invitation to the valid phone number.
+func (h *Handlers) InviteValidRecipient(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")
+	}
+
+	code := codeFromCtx(ctx)
+	l := gotext.NewLocale(translationDir, code)
+	l.AddDomain("default")
+
+	recipient, _ := store.ReadEntry(ctx, sessionId, common.DATA_TEMPORARY_VALUE)
+
+	// TODO
+	// send an invitation SMS
+	// if successful
+	// res.Content = l.Get("Your invitation to %s to join Sarafu Network has been sent.",  string(recipient))
+
+	res.Content = l.Get("Your invite request for %s to Sarafu Network failed. Please try again later.", string(recipient))
+	return res, nil
+}
+
 // ResetTransactionAmount resets the transaction amount and invalid flag
 func (h *Handlers) ResetTransactionAmount(ctx context.Context, sym string, input []byte) (resource.Result, error) {
 	var res resource.Result

services/registration/invalid_recipient

@@ -1 +1 @@
-{{.validate_recipient}} is not registered or invalid, please try again:
+{{.validate_recipient}} is invalid, please try again:

services/registration/invalid_recipient_swa

@@ -1 +1 @@
-{{.validate_recipient}} haijasajiliwa au sio sahihi, tafadhali weka tena:
+{{.validate_recipient}} sio sahihi, tafadhali weka tena:

services/registration/invite_menu

@@ -0,0 +1 @@
+Invite to Sarafu Network

services/registration/invite_menu_swa

@@ -0,0 +1 @@
+Karibisha kwa matandao wa Sarafu

services/registration/invite_recipient

@@ -0,0 +1 @@
+{{.validate_recipient}} is not registered, please try again:

services/registration/invite_recipient.vis

@@ -0,0 +1,8 @@
+MAP validate_recipient
+MOUT retry 1
+MOUT invite 2
+MOUT quit 9
+HALT
+INCMP _ 1
+INCMP invite_result 2
+INCMP quit 9

services/registration/invite_recipient_swa

@@ -0,0 +1 @@
+{{.validate_recipient}} haijasajiliwa, tafadhali weka tena:

services/registration/invite_result.vis

@@ -0,0 +1,2 @@
+LOAD invite_valid_recipient 0
+HALT

services/registration/locale/swa/default.po

@@ -12,3 +12,9 @@ msgstr "Kwa usaidizi zaidi,piga: 0757628885"
 
 msgid "Balance: %s\n"
 msgstr "Salio: %s\n"
+
+msid "Your invite request for %s to Sarafu Network failed. Please try again later."
+msgstr "Ombi lako la kumwalika %s kwa matandao wa Sarafu halikufaulu. Tafadhali jaribu tena baadaye."
+
+msgid "Your invitation to %s to join Sarafu Network has been sent."
+msgstr "Ombi lako la kumwalika %s kwa matandao wa Sarafu limetumwa."

services/registration/send.vis

@@ -1,9 +1,11 @@
 LOAD transaction_reset 0
+RELOAD transaction_reset
 CATCH no_voucher flag_no_active_voucher 1
 MOUT back 0
 HALT
 LOAD validate_recipient 20
 RELOAD validate_recipient
 CATCH invalid_recipient flag_invalid_recipient 1
+CATCH invite_recipient flag_invalid_recipient_with_invite 1
 INCMP _ 0
 INCMP amount *