Zip321 scan error handling

ui-lib/src/main/java/co/electriccoin/zcash/ui/common/usecase/OnZip321ScannedUseCase.kt

@@ -2,6 +2,7 @@ package co.electriccoin.zcash.ui.common.usecase
 
 import co.electriccoin.zcash.ui.NavigationRouter
 import co.electriccoin.zcash.ui.common.datasource.AccountDataSource
+import co.electriccoin.zcash.ui.common.datasource.TransactionProposalNotCreatedException
 import co.electriccoin.zcash.ui.common.model.KeystoneAccount
 import co.electriccoin.zcash.ui.common.model.ZashiAccount
 import co.electriccoin.zcash.ui.common.repository.KeystoneProposalRepository
@@ -77,6 +78,11 @@ class OnZip321ScannedUseCase(
                 )
             )
             navigationRouter.replace(Send(), ReviewTransaction)
+        } catch (e: TransactionProposalNotCreatedException) {
+            prefillSend.requestFromZip321(zip321.payment)
+            navigationRouter.replace(Send())
+            zashiProposalRepository.clear()
+            keystoneProposalRepository.clear()
         } catch (e: Exception) {
             navigateToErrorUseCase(ErrorArgs.General(e))
             zashiProposalRepository.clear()
@@ -113,6 +119,11 @@ class OnZip321ScannedUseCase(
                 )
             )
             navigationRouter.forward(ReviewTransaction)
+        } catch (e: TransactionProposalNotCreatedException) {
+            prefillSend.requestFromZip321(zip321.payment)
+            navigationRouter.back()
+            zashiProposalRepository.clear()
+            keystoneProposalRepository.clear()
         } catch (e: Exception) {
             navigateToErrorUseCase(ErrorArgs.General(e))
             zashiProposalRepository.clear()

ui-lib/src/main/java/co/electriccoin/zcash/ui/common/usecase/PrefillSendUseCase.kt

@@ -1,5 +1,7 @@
 package co.electriccoin.zcash.ui.common.usecase
 
+import PaymentRequest
+import cash.z.ecc.android.sdk.ext.convertZecToZatoshi
 import cash.z.ecc.android.sdk.model.Zatoshi
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -15,7 +17,7 @@ class PrefillSendUseCase {
 
     operator fun invoke() = bus.receiveAsFlow()
 
-    fun request(value: DetailedTransactionData) =
+    fun requestFromTransactionDetail(value: DetailedTransactionData) =
         scope.launch {
             bus.send(
                 PrefillSendData.All(
@@ -27,10 +29,20 @@ class PrefillSendUseCase {
             )
         }
 
-    fun request(value: PrefillSendData) =
+    fun requestFromZip321(value: PaymentRequest) =
         scope.launch {
-            bus.send(value)
+            val request = value.payments.firstOrNull()
+            bus.send(
+                PrefillSendData.All(
+                    amount = request?.nonNegativeAmount?.value?.convertZecToZatoshi() ?: Zatoshi(0),
+                    address = request?.recipientAddress?.value,
+                    fee = null,
+                    memos = request?.message?.let { listOf(it) }
+                )
+            )
         }
+
+    fun request(value: PrefillSendData) = scope.launch { bus.send(value) }
 }
 
 sealed interface PrefillSendData {

ui-lib/src/main/java/co/electriccoin/zcash/ui/common/usecase/SendTransactionAgainUseCase.kt

@@ -8,7 +8,7 @@ class SendTransactionAgainUseCase(
     private val navigationRouter: NavigationRouter
 ) {
     operator fun invoke(value: DetailedTransactionData) {
-        prefillSendUseCase.request(value)
+        prefillSendUseCase.requestFromTransactionDetail(value)
         navigationRouter.forward(
             Send(
                 isScanZip321Enabled = false