feat(feature:send-money): add payment success screen

Author: biplab1

cmp-android/prodRelease-badging.txt

@@ -1,4 +1,4 @@
-package: name='org.mifospay' versionCode='1' versionName='2025.8.4-beta.0.10' platformBuildVersionName='15' platformBuildVersionCode='35' compileSdkVersion='35' compileSdkVersionCodename='15'
+package: name='org.mifospay' versionCode='1' versionName='2025.8.4-beta.0.11' platformBuildVersionName='15' platformBuildVersionCode='35' compileSdkVersion='35' compileSdkVersionCodename='15'
 minSdkVersion:'26'
 targetSdkVersion:'34'
 uses-permission: name='android.permission.INTERNET'

cmp-shared/src/commonMain/kotlin/org/mifospay/shared/navigation/MifosNavHost.kt

@@ -75,10 +75,12 @@ import org.mifospay.feature.send.money.navigation.SEND_MONEY_BASE_ROUTE
 import org.mifospay.feature.send.money.navigation.SEND_MONEY_OPTIONS_ROUTE
 import org.mifospay.feature.send.money.navigation.navigateToPayeeDetailsScreen
 import org.mifospay.feature.send.money.navigation.navigateToPaymentProcessingScreen
+import org.mifospay.feature.send.money.navigation.navigateToPaymentSuccessScreen
 import org.mifospay.feature.send.money.navigation.navigateToSendMoneyOptionsScreen
 import org.mifospay.feature.send.money.navigation.navigateToSendMoneyScreen
 import org.mifospay.feature.send.money.navigation.payeeDetailsScreen
 import org.mifospay.feature.send.money.navigation.paymentProcessingScreen
+import org.mifospay.feature.send.money.navigation.paymentSuccessScreen
 import org.mifospay.feature.send.money.navigation.sendMoneyOptionsScreen
 import org.mifospay.feature.send.money.navigation.sendMoneyScreen
 import org.mifospay.feature.settings.navigation.settingsScreen
@@ -335,17 +337,31 @@ internal fun MifosNavHost(
         )
 
         paymentProcessingScreen(
-            onPaymentComplete = {
+            onPaymentComplete = { payeeName, amount, upiName, transactionTimestamp ->
+                navController.navigateToPaymentSuccessScreen(
+                    payeeName = payeeName,
+                    amount = amount,
+                    upiName = upiName,
+                    transactionTimestamp = transactionTimestamp,
+                )
+            },
+            onPaymentFailed = { errorMessage ->
+                navController.popBackStack()
+            },
+        )
+
+        paymentSuccessScreen(
+            onShareScreenshot = {
+                // TODO: Implement screenshot sharing functionality
+            },
+            onDone = {
                 navController.navigate(HOME_ROUTE) {
                     popUpTo(HOME_ROUTE) {
                         inclusive = false
                     }
                     launchSingleTop = true
                 }
             },
-            onPaymentFailed = { errorMessage ->
-                navController.popBackStack()
-            },
         )
 
         transferScreen(

feature/send-money/src/commonMain/composeResources/values/strings.xml

@@ -68,4 +68,12 @@
     <string name="feature_send_money_continue">Continue</string>
     <string name="feature_send_money_paying_securely">Paying securely %1$s to</string>
     <string name="feature_send_money_paid_to">Paid to</string>
+
+    <!-- Payment Success Screen -->
+    <string name="feature_send_money_payment_success">Payment Successful</string>
+    <string name="feature_send_money_banking_name">Banking name: %1$s</string>
+    <string name="feature_send_money_powered_by_upi">Powered by UPI</string>
+    <string name="feature_send_money_share_screenshot">Share screenshot</string>
+    <string name="feature_send_money_done">Done</string>
+    <string name="feature_send_money_payment_success_description">Payment completed successfully</string>
 </resources>

feature/send-money/src/commonMain/kotlin/org/mifospay/feature/send/money/PayeeDetailsScreen.kt

@@ -580,7 +580,7 @@ private fun ProceedButton(
     val isButtonEnabled = if (hasSelectedAccount) {
         isAmountValid && isContactValid
     } else {
-        isAmountValid && isContactValid && (isAmountPrefilled || state.hasNoteFieldBeenFocused)
+        isAmountValid && isContactValid && state.amount.isNotEmpty()
     }
 
     Button(

feature/send-money/src/commonMain/kotlin/org/mifospay/feature/send/money/PaymentProcessingScreen.kt

@@ -40,7 +40,7 @@ import template.core.base.designsystem.theme.KptTheme
 
 @Composable
 fun PaymentProcessingScreen(
-    onPaymentComplete: () -> Unit,
+    onPaymentComplete: (String, String, String, String) -> Unit,
     onPaymentFailed: (String) -> Unit,
     modifier: Modifier = Modifier,
     viewModel: PaymentProcessingViewModel = koinViewModel(),
@@ -49,7 +49,12 @@ fun PaymentProcessingScreen(
 
     EventsEffect(viewModel) { event ->
         when (event) {
-            is PaymentProcessingEvent.PaymentComplete -> onPaymentComplete.invoke()
+            is PaymentProcessingEvent.PaymentComplete -> onPaymentComplete.invoke(
+                event.payeeName,
+                event.amount,
+                event.upiName,
+                event.transactionTimestamp,
+            )
             is PaymentProcessingEvent.PaymentFailed -> onPaymentFailed.invoke(event.errorMessage)
         }
     }
@@ -130,7 +135,7 @@ private fun PaymentProcessingContent(
 @Composable
 fun PaymentProcessingScreenPreview() {
     PaymentProcessingScreen(
-        onPaymentComplete = {},
+        onPaymentComplete = { _, _, _, _ -> },
         onPaymentFailed = {},
         modifier = Modifier,
     )

feature/send-money/src/commonMain/kotlin/org/mifospay/feature/send/money/PaymentProcessingViewModel.kt

@@ -14,6 +14,7 @@ import androidx.lifecycle.viewModelScope
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
+import kotlinx.datetime.Clock
 import org.mifospay.core.ui.utils.BaseViewModel
 
 class PaymentProcessingViewModel(
@@ -43,13 +44,20 @@ class PaymentProcessingViewModel(
             try {
                 mutableStateFlow.update { it.copy(isProcessing = true) }
 
-                delay(3000) // Simulate payment processing time
+                delay(3000)
 
                 mutableStateFlow.update { it.copy(isProcessing = false) }
 
-                delay(1000) // Show completion state briefly
+                delay(1000)
 
-                sendEvent(PaymentProcessingEvent.PaymentComplete)
+                sendEvent(
+                    PaymentProcessingEvent.PaymentComplete(
+                        payeeName = state.payeeName,
+                        amount = state.amount,
+                        upiName = state.payeeName.uppercase(),
+                        transactionTimestamp = getCurrentUnixTimestamp(),
+                    ),
+                )
             } catch (e: Exception) {
                 sendEvent(PaymentProcessingEvent.PaymentFailed(e.message ?: "Payment failed"))
             }
@@ -63,6 +71,14 @@ class PaymentProcessingViewModel(
             }
         }
     }
+
+    /**
+     * Gets the current Unix timestamp from the mobile device
+     * This is used as a fallback when PSP timestamp is not available
+     */
+    private fun getCurrentUnixTimestamp(): String {
+        return Clock.System.now().epochSeconds.toString()
+    }
 }
 
 data class PaymentProcessingState(
@@ -76,7 +92,12 @@ data class PaymentProcessingState(
 }
 
 sealed interface PaymentProcessingEvent {
-    data object PaymentComplete : PaymentProcessingEvent
+    data class PaymentComplete(
+        val payeeName: String,
+        val amount: String,
+        val upiName: String,
+        val transactionTimestamp: String,
+    ) : PaymentProcessingEvent
     data class PaymentFailed(val errorMessage: String) : PaymentProcessingEvent
 }