compose: details: Better handle purchase state

Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>

app/src/main/java/com/aurora/store/compose/ui/details/AppDetailsScreen.kt

@@ -274,12 +274,14 @@ private fun ScreenContentApp(
     @Composable
     fun SetupActions() {
         when (state) {
+            is AppState.Purchasing,
             is AppState.Downloading -> {
                 Actions(
                     primaryActionDisplayName = stringResource(R.string.action_open),
                     secondaryActionDisplayName = stringResource(R.string.action_cancel),
                     isPrimaryActionEnabled = false,
-                    onSecondaryAction = onCancelDownload
+                    onSecondaryAction = onCancelDownload,
+                    isSecondaryActionEnabled = state !is AppState.Purchasing
                 )
             }
 

app/src/main/java/com/aurora/store/compose/ui/details/components/Details.kt

@@ -97,6 +97,10 @@ fun Details(
                             )
                         }
 
+                        AppState.Purchasing::class -> {
+                            stringResource(R.string.preparing_to_install)
+                        }
+
                         else -> {
                             stringResource(R.string.version, versionName, versionCode)
                         }

app/src/main/java/com/aurora/store/data/model/State.kt

@@ -55,6 +55,7 @@ sealed class AppState {
         val timeRemaining: Long
     ) : AppState()
 
+    data object Purchasing : AppState()
     data class Installing(val progress: Float) : AppState()
     data class Error(val message: String?) : AppState()
     data class Installed(val versionName: String, val versionCode: Long) : AppState()
@@ -67,7 +68,7 @@ sealed class AppState {
      * Whether there is some sort of ongoing process related to the app
      */
     fun inProgress(): Boolean {
-        return this is Downloading || this is Installing
+        return this is Downloading || this is Installing || this is Purchasing
     }
 
     /**

app/src/main/java/com/aurora/store/viewmodel/details/AppDetailsViewModel.kt

@@ -222,7 +222,7 @@ class AppDetailsViewModel @Inject constructor(
     fun purchase(app: App) {
         viewModelScope.launch(NonCancellable + Dispatchers.IO) {
             try {
-                _state.value = AppState.Downloading(0F, 0 ,0)
+                _state.value = AppState.Purchasing
                 val files = purchaseHelper.purchase(app.packageName, app.versionCode, app.offerType)
                 _purchaseStatus.emit(files.isNotEmpty())
                 if (files.isNotEmpty()) {