fix(requests): suggest another currency when a share can't be covered

apps/flipcash/core/src/main/res/values/strings.xml

@@ -291,6 +291,7 @@
     <string name="title_insufficientBalance">Insufficient Balance</string>
     <string name="description_insufficientBalanceToCreate">Add more money to create a currency</string>
     <string name="description_insufficientBalanceToUse">Add more money, or enter a smaller amount</string>
+    <string name="description_insufficientBalanceToPayRequest">Add more money, or select a different Community Currency</string>
     <string name="description_noBalanceYetToGive">Add money to give cash</string>
     <string name="description_noBalanceYetToBuy">Add money to buy currencies</string>
     <string name="description_noBalanceYetToSend">Add money to send cash</string>

apps/flipcash/features/messenger/src/main/kotlin/com/flipcash/app/messenger/internal/payment/StartChattingPayer.kt

@@ -1,5 +1,6 @@
 package com.flipcash.app.messenger.internal.payment
 
+import androidx.annotation.StringRes
 import com.flipcash.analytics.AddMoneySource
 import com.flipcash.analytics.State as AnalyticsState
 import com.flipcash.analytics.events.AddMoneyEvents
@@ -53,7 +54,10 @@ internal interface StartChattingPayer {
     suspend fun mayProceed(onAddMoney: () -> Unit, onDiscoverCurrencies: () -> Unit): Boolean
 
     /** Over balance, with something in the account. [onAddMoney] is the alert's action. */
-    fun presentInsufficientBalance(onAddMoney: () -> Unit)
+    fun presentInsufficientBalance(
+        onAddMoney: () -> Unit,
+        @StringRes message: Int = R.string.description_insufficientBalanceToUse,
+    )
 
     /** The deposit screen to open for an "Add Money" action, or null when there is none to open. */
     suspend fun depositRoute(): AppRoute?
@@ -113,10 +117,10 @@ internal class DefaultStartChattingPayer @Inject constructor(
         return false
     }
 
-    override fun presentInsufficientBalance(onAddMoney: () -> Unit) {
+    override fun presentInsufficientBalance(onAddMoney: () -> Unit, @StringRes message: Int) {
         BottomBarManager.showInfo(
             title = resources.getString(R.string.title_insufficientBalance),
-            message = resources.getString(R.string.description_insufficientBalanceToUse),
+            message = resources.getString(message),
             actions = listOf(
                 BottomBarAction(text = resources.getString(R.string.action_addMoney)) { onAddMoney() },
             ),

apps/flipcash/features/messenger/src/main/kotlin/com/flipcash/app/messenger/internal/request/RequestPayFlow.kt

@@ -172,7 +172,11 @@ internal class RequestPayFlow(
     }
 
     private fun present(block: PayBlock) = when (block) {
-        PayBlock.OverBalance -> payer.presentInsufficientBalance(onAddMoney = ::presentDeposit)
+        PayBlock.OverBalance -> payer.presentInsufficientBalance(
+            onAddMoney = ::presentDeposit,
+            // A share is a fixed amount, so the way out is another currency, not a smaller amount.
+            message = R.string.description_insufficientBalanceToPayRequest,
+        )
         PayBlock.OverSendLimit -> BottomBarManager.showAlert(
             resources.getString(R.string.error_title_sendLimitReached),
             resources.getString(R.string.error_description_sendLimitReached),

apps/flipcash/features/messenger/src/test/kotlin/com/flipcash/app/messenger/internal/request/RequestDetailsInsufficientFundsTest.kt

@@ -113,7 +113,7 @@ class RequestDetailsInsufficientFundsTest {
         vm.payTapped()
 
         assertEquals(true, vm.pay.value.open)
-        verify(exactly = 0) { payer.presentInsufficientBalance(any()) }
+        verify(exactly = 0) { payer.presentInsufficientBalance(any(), any()) }
     }
 
     @Test
@@ -123,7 +123,7 @@ class RequestDetailsInsufficientFundsTest {
         vm.payTapped()
 
         assertEquals(true, vm.pay.value.open)
-        verify(exactly = 0) { payer.presentInsufficientBalance(any()) }
+        verify(exactly = 0) { payer.presentInsufficientBalance(any(), any()) }
     }
 
     @Test
@@ -137,7 +137,7 @@ class RequestDetailsInsufficientFundsTest {
         vm.confirmPay()
 
         assertEquals(true, vm.pay.value.open)
-        verify(exactly = 1) { payer.presentInsufficientBalance(any()) }
+        verify(exactly = 1) { payer.presentInsufficientBalance(any(), any()) }
     }
 
     @Test

apps/flipcash/features/messenger/src/test/kotlin/com/flipcash/app/messenger/internal/request/RequestPayFlowTest.kt

@@ -102,7 +102,7 @@ class RequestPayFlowTest {
         f.start(listOf<Byte>(2))
 
         assertEquals(true, f.state.value.open)
-        verify(exactly = 0) { payer.presentInsufficientBalance(any()) }
+        verify(exactly = 0) { payer.presentInsufficientBalance(any(), any()) }
     }
 
     @Test
@@ -114,7 +114,7 @@ class RequestPayFlowTest {
         f.confirm()
 
         assertEquals(true, f.state.value.open)
-        verify(exactly = 1) { payer.presentInsufficientBalance(any()) }
+        verify(exactly = 1) { payer.presentInsufficientBalance(any(), any()) }
         coVerify(exactly = 0) { payments.pay(any(), any(), any()) }
     }