feat(flipcash): daisy-chain connect and createAndSend transaction deeplinks by inheriting amount initially needed

Signed-off-by: Brandon McAnsh <git@bmcreations.dev>

Author: bmc08gt

apps/flipcash/app/src/main/kotlin/com/flipcash/app/internal/ui/navigation/AppScreenContent.kt

@@ -124,7 +124,10 @@ internal fun AppScreenContent(content: @Composable () -> Unit) {
 
         register<NavScreenProvider.HomeScreen.OnRamp.ProviderList> {
             OnRampFlowTracker.start(it.from)
-            OnRampProviderListScreen()
+            OnRampProviderListScreen(
+                neededAmount = it.neededAmount?.quarks,
+                neededCurrency = it.neededAmount?.currencyCode
+            )
         }
 
         register<NavScreenProvider.HomeScreen.OnRamp.Amount> {

apps/flipcash/core/src/main/kotlin/com/flipcash/app/core/NavScreenProvider.kt

@@ -6,6 +6,7 @@ import com.flipcash.app.core.navigation.DeeplinkType
 import com.flipcash.app.core.transfers.TransferDirection
 import com.getcode.ed25519.Ed25519
 import com.getcode.opencode.model.core.ID
+import com.getcode.opencode.model.financial.Fiat
 import com.getcode.ui.core.RestrictionType
 
 sealed class NavScreenProvider : ScreenProvider {
@@ -56,7 +57,10 @@ sealed class NavScreenProvider : ScreenProvider {
         data object ShareApp : NavScreenProvider()
 
        sealed class OnRamp {
-           data class ProviderList(val from: NavScreenProvider? = null): NavScreenProvider()
+           data class ProviderList(
+               val from: NavScreenProvider? = null,
+               val neededAmount: Fiat? = null,
+           ): NavScreenProvider()
            data object Amount : NavScreenProvider()
            data object Success: NavScreenProvider()
        }

apps/flipcash/features/cash/src/main/kotlin/com/flipcash/app/cash/CashScreen.kt

@@ -25,6 +25,7 @@ import com.getcode.ui.components.AppBarDefaults
 import com.getcode.ui.components.AppBarWithTitle
 import kotlinx.coroutines.flow.filterIsInstance
 import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.onEach
 import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
@@ -69,11 +70,13 @@ class CashScreen: ModalScreen, Parcelable {
         LaunchedEffect(viewModel) {
             viewModel.eventFlow
                 .filterIsInstance<CashScreenViewModel.Event.AddCashToWallet>()
-                .onEach {
+                .map { it.amount }
+                .onEach { amount ->
                     navigator.push(
                         ScreenRegistry.get(
                             NavScreenProvider.HomeScreen.OnRamp.ProviderList(
-                                NavScreenProvider.HomeScreen.Cash
+                                NavScreenProvider.HomeScreen.Cash,
+                                neededAmount = amount
                             )
                         )
                     )

apps/flipcash/features/cash/src/main/kotlin/com/flipcash/app/cash/internal/CashScreenViewModel.kt

@@ -90,7 +90,7 @@ internal class CashScreenViewModel @Inject constructor(
         data object OnGive : Event
         data class PresentBill(val bill: Bill.Cash) : Event
 
-        data object AddCashToWallet : Event
+        data class AddCashToWallet(val amount: Fiat) : Event
         data class UpdateLoadingState(val loading: Boolean = false, val success: Boolean = false) :
             Event
     }
@@ -117,7 +117,22 @@ internal class CashScreenViewModel @Inject constructor(
                         text = resources.getString(R.string.action_addCashToWallet),
                         style = BottomBarManager.BottomBarButtonStyle.Filled,
                     ) {
-                        dispatchEvent(Event.AddCashToWallet)
+                        viewModelScope.launch {
+                            val rate = exchange.entryRate
+                            // if we are USD we can skip the rate fetch since its 1:1
+                            if (rate.currency != CurrencyCode.USD) {
+                                exchange.fetchRatesIfNeeded()
+                            }
+
+                            val localizedAmount = Fiat(amount, rate.currency)
+
+                            val amountFiat = LocalFiat(
+                                usdc = localizedAmount.convertingTo(exchange.rateToUsd(rate.currency)!!),
+                                converted = localizedAmount,
+                                rate = rate,
+                            )
+                            dispatchEvent(Event.AddCashToWallet(amountFiat.usdc))
+                        }
                     },
                     BottomBarAction(
                         text = resources.getString(R.string.action_dismiss),
@@ -297,8 +312,7 @@ internal class CashScreenViewModel @Inject constructor(
                     )
                 }
 
-                Event.AddCashToWallet -> { state -> state }
-
+                is Event.AddCashToWallet -> { state -> state }
                 is Event.OnMaxDetermined -> { state ->
                     state.copy(maxForGive = event.max to event.currencyCode)
                 }

apps/flipcash/features/onramp/src/main/kotlin/com/flipcash/app/onramp/OnRampProviderListScreen.kt

@@ -22,6 +22,8 @@ import com.getcode.navigation.core.LocalCodeNavigator
 import com.getcode.navigation.extensions.getStackScopedViewModel
 import com.getcode.navigation.modal.ModalScreen
 import com.getcode.navigation.screens.NamedScreen
+import com.getcode.opencode.model.financial.CurrencyCode
+import com.getcode.opencode.model.financial.Fiat
 import com.getcode.ui.components.AppBarWithTitle
 import kotlinx.coroutines.flow.filterIsInstance
 import kotlinx.coroutines.flow.launchIn
@@ -31,7 +33,10 @@ import kotlinx.parcelize.IgnoredOnParcel
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
-class OnRampProviderListScreen: ModalScreen, NamedScreen, Parcelable {
+class OnRampProviderListScreen(
+    val neededAmount: Long? = null,
+    val neededCurrency: CurrencyCode? = null,
+): ModalScreen, NamedScreen, Parcelable {
 
     @IgnoredOnParcel
     override val key: ScreenKey = uniqueScreenKey
@@ -85,6 +90,9 @@ class OnRampProviderListScreen: ModalScreen, NamedScreen, Parcelable {
                         navigator.push(ScreenRegistry.get(NavScreenProvider.HomeScreen.OnRamp.Amount))
                     } else {
                         phantomDepositState.setOrigin(OnRampFlowTracker.source)
+                        if (neededAmount != null && neededCurrency != null) {
+                            phantomDepositState.amount = Fiat(neededAmount, neededCurrency)
+                        }
                         phantomDepositState.start()
                     }
                 }

apps/flipcash/features/pools/src/main/kotlin/com/flipcash/app/pools/internal/betting/PoolBettingViewModel.kt

@@ -172,7 +172,7 @@ internal class PoolBettingViewModel @Inject constructor(
         data class OnFundsDistributed(val isDistributed: Boolean) : Event
         data object OnSharePool : Event
         data object OnFailedToLoad: Event
-        data object AddCashToWallet: Event
+        data class AddCashToWallet(val amount: Fiat): Event
     }
 
     init {
@@ -374,7 +374,7 @@ internal class PoolBettingViewModel @Inject constructor(
                                             text = resources.getString(R.string.action_addCashToWallet),
                                             style = BottomBarManager.BottomBarButtonStyle.Filled,
                                         ) {
-                                            dispatchEvent(Event.AddCashToWallet)
+                                            dispatchEvent(Event.AddCashToWallet(stateFlow.value.metadata.buyIn))
                                         },
                                         BottomBarAction(
                                             text = resources.getString(R.string.action_dismiss),

apps/flipcash/shared/phantom-onramp/src/main/kotlin/com/flipcash/app/onramp/PhantomOnRampHandler.kt

@@ -126,10 +126,7 @@ fun PhantomOnRampHandler(
                     message = "phantom connected",
                     type = TraceType.Process
                 )
-                // this will always be present in a modal so we can confidently push it into the stack
-                // without worrying about the need to show vs. push
-                delay(300)
-                navigator.push(ScreenRegistry.get(NavScreenProvider.HomeScreen.OnRamp.Amount))
+                state.createAndSendTransaction()
             }
 
             PhantomDeeplinkState.SIGNING -> {

apps/flipcash/shared/phantom-onramp/src/main/kotlin/com/flipcash/app/onramp/internal/PhantomDepositState.kt

@@ -67,20 +67,6 @@ class PhantomDepositState(
      * The amount to transfer selected by the user
      */
     var amount: Fiat? = null
-        set(value) {
-            field = value
-            if (value != null) {
-                scope.launch {
-                    createTransaction()
-                        .onFailure {
-                            errors.emit(PhantomOnRampError.FailedToCreateTransaction(message = it.message))
-                        }.onSuccess {
-                            unsignedTransaction = it
-                            deeplinkState = PhantomDeeplinkState.SIGNING
-                        }
-                }
-            }
-        }
 
     /**
      * The unsigned transaction to be signed by Phantom
@@ -251,6 +237,16 @@ class PhantomDepositState(
         signingResult = null
     }
 
+    suspend fun createAndSendTransaction() {
+        createTransaction()
+            .onFailure {
+                errors.emit(PhantomOnRampError.FailedToCreateTransaction(message = it.message))
+            }.onSuccess {
+                unsignedTransaction = it
+                deeplinkState = PhantomDeeplinkState.SIGNING
+            }
+    }
+
     private suspend fun createTransaction(): Result<Transaction> {
         return withContext(Dispatchers.IO) {
             runCatching {