Fix extension download stuck at pending state in some cases (mihonapp/mihon#2483)

Also auto update extension list whenever a repository is added or removed

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>
(cherry picked from commit 87c6f34a558b009be4d316e396ec3eeb4cfbbbf8)

app/src/main/java/eu/kanade/presentation/more/settings/screen/browse/ExtensionReposScreenModel.kt

@@ -5,6 +5,7 @@ import cafe.adriel.voyager.core.model.StateScreenModel
 import cafe.adriel.voyager.core.model.screenModelScope
 import dev.icerock.moko.resources.StringResource
 import eu.kanade.domain.source.service.SourcePreferences
+import eu.kanade.tachiyomi.extension.ExtensionManager
 import kotlinx.collections.immutable.ImmutableSet
 import kotlinx.collections.immutable.toImmutableSet
 import kotlinx.coroutines.channels.Channel
@@ -30,6 +31,7 @@ class ExtensionReposScreenModel(
     private val deleteExtensionRepo: DeleteExtensionRepo = Injekt.get(),
     private val replaceExtensionRepo: ReplaceExtensionRepo = Injekt.get(),
     private val updateExtensionRepo: UpdateExtensionRepo = Injekt.get(),
+    private val extensionManager: ExtensionManager = Injekt.get(),
     // KMK -->
     private val sourcePreferences: SourcePreferences = Injekt.get(),
     // KMK <--
@@ -75,6 +77,7 @@ class ExtensionReposScreenModel(
     fun createRepo(baseUrl: String) {
         screenModelScope.launchIO {
             when (val result = createExtensionRepo.await(baseUrl)) {
+                CreateExtensionRepo.Result.Success -> extensionManager.findAvailableExtensions()
                 CreateExtensionRepo.Result.InvalidUrl -> _events.send(RepoEvent.InvalidUrl)
                 CreateExtensionRepo.Result.RepoAlreadyExists -> _events.send(RepoEvent.RepoAlreadyExists)
                 is CreateExtensionRepo.Result.DuplicateFingerprint -> {
@@ -119,6 +122,7 @@ class ExtensionReposScreenModel(
         // KMK <--
         screenModelScope.launchIO {
             deleteExtensionRepo.await(baseUrl)
+            extensionManager.findAvailableExtensions()
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/extension/ExtensionManager.kt

@@ -192,7 +192,7 @@ class ExtensionManager(
         } catch (e: Exception) {
             logcat(LogPriority.ERROR, e)
             withUIContext { context.toast(MR.strings.extension_api_error) }
-            emptyList()
+            return
         }
 
         enableAdditionalSubLanguages(extensions)

app/src/main/java/eu/kanade/tachiyomi/ui/browse/extension/ExtensionsScreenModel.kt

@@ -198,6 +198,7 @@ class ExtensionsScreenModel(
 
     fun cancelInstallUpdateExtension(extension: Extension) {
         extensionManager.cancelInstallUpdateExtension(extension)
+        removeDownloadState(extension)
     }
 
     private fun addDownloadState(extension: Extension, installStep: InstallStep) {