Grab extension repo detail from repo.json and include in DB (#506)

* WIP Extension Repo DB Support

* Wired in to extension screen, browse settings screen

* Detekt changes

* Ui tweaks and open in browser

* Migrate ExtensionRepos on Update

* Migration Cleanup

* Slight cleanup / error handling

* Update ExtensionRepo from Repo.json during extension search.
Added Manual refresh in extension repos page.

* Split repo fetching into separate API module, major refactor work

* Removed development strings

* Moved migration to #3

* Fixed rebase

* Detekt changes

* Added Replace Repository Dialog

* Cleanup, removed platform specific code, PR comments

* Removed extra function, reverted small change

* Detekt cleanup

* Apply suggestions from code review

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>

* Fixed error introduced in cleanup

* Tweak for multiline when

* Moved getCount() to flow

* changed getCount to non-suspend, used property delegation

* Apply suggestions from code review

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>

* Fixed formatting with updated comment string

* Big wave of PR comments, renaming/other tweaks

* onOpenWebsite changes

* onOpenWebsite changes

* trying to make single line

* Renamed ExtensionRepoApi.kt to ExtensionRepoService.kt

---------

Co-authored-by: AntsyLich <59261191+AntsyLich@users.noreply.github.com>

app/src/main/java/eu/kanade/domain/DomainModule.kt

@@ -4,10 +4,7 @@ import eu.kanade.domain.chapter.interactor.GetAvailableScanlators
 import eu.kanade.domain.chapter.interactor.SetReadStatus
 import eu.kanade.domain.chapter.interactor.SyncChaptersWithSource
 import eu.kanade.domain.download.interactor.DeleteDownload
-import eu.kanade.domain.extension.interactor.CreateExtensionRepo
-import eu.kanade.domain.extension.interactor.DeleteExtensionRepo
 import eu.kanade.domain.extension.interactor.GetExtensionLanguages
-import eu.kanade.domain.extension.interactor.GetExtensionRepos
 import eu.kanade.domain.extension.interactor.GetExtensionSources
 import eu.kanade.domain.extension.interactor.GetExtensionsByType
 import eu.kanade.domain.extension.interactor.TrustExtension
@@ -26,6 +23,14 @@ import eu.kanade.domain.track.interactor.AddTracks
 import eu.kanade.domain.track.interactor.RefreshTracks
 import eu.kanade.domain.track.interactor.SyncChapterProgressWithTrack
 import eu.kanade.domain.track.interactor.TrackChapter
+import mihon.data.repository.ExtensionRepoRepositoryImpl
+import mihon.domain.extensionrepo.interactor.CreateExtensionRepo
+import mihon.domain.extensionrepo.interactor.DeleteExtensionRepo
+import mihon.domain.extensionrepo.interactor.GetExtensionRepo
+import mihon.domain.extensionrepo.interactor.GetExtensionRepoCount
+import mihon.domain.extensionrepo.interactor.ReplaceExtensionRepo
+import mihon.domain.extensionrepo.interactor.UpdateExtensionRepo
+import mihon.domain.extensionrepo.repository.ExtensionRepoRepository
 import tachiyomi.data.category.CategoryRepositoryImpl
 import tachiyomi.data.chapter.ChapterRepositoryImpl
 import tachiyomi.data.history.HistoryRepositoryImpl
@@ -173,8 +178,12 @@ class DomainModule : InjektModule {
         addFactory { ToggleSourcePin(get()) }
         addFactory { TrustExtension(get()) }
 
+        addSingletonFactory<ExtensionRepoRepository> { ExtensionRepoRepositoryImpl(get()) }
+        addFactory { GetExtensionRepo(get()) }
+        addFactory { GetExtensionRepoCount(get()) }
         addFactory { CreateExtensionRepo(get()) }
         addFactory { DeleteExtensionRepo(get()) }
-        addFactory { GetExtensionRepos(get()) }
+        addFactory { ReplaceExtensionRepo(get()) }
+        addFactory { UpdateExtensionRepo(get(), get()) }
     }
 }

app/src/main/java/eu/kanade/domain/extension/interactor/CreateExtensionRepo.kt

@@ -1,25 +0,0 @@
-package eu.kanade.domain.extension.interactor
-
-import eu.kanade.domain.source.service.SourcePreferences
-import tachiyomi.core.common.preference.plusAssign
-
-class CreateExtensionRepo(private val preferences: SourcePreferences) {
-
-    fun await(name: String): Result {
-        // Do not allow invalid formats
-        if (!name.matches(repoRegex)) {
-            return Result.InvalidUrl
-        }
-
-        preferences.extensionRepos() += name.removeSuffix("/index.min.json")
-
-        return Result.Success
-    }
-
-    sealed interface Result {
-        data object InvalidUrl : Result
-        data object Success : Result
-    }
-}
-
-private val repoRegex = """^https://.*/index\.min\.json$""".toRegex()

app/src/main/java/eu/kanade/domain/extension/interactor/DeleteExtensionRepo.kt

@@ -1,11 +0,0 @@
-package eu.kanade.domain.extension.interactor
-
-import eu.kanade.domain.source.service.SourcePreferences
-import tachiyomi.core.common.preference.minusAssign
-
-class DeleteExtensionRepo(private val preferences: SourcePreferences) {
-
-    fun await(repo: String) {
-        preferences.extensionRepos() -= repo
-    }
-}

app/src/main/java/eu/kanade/domain/extension/interactor/GetExtensionRepos.kt

@@ -1,11 +0,0 @@
-package eu.kanade.domain.extension.interactor
-
-import eu.kanade.domain.source.service.SourcePreferences
-import kotlinx.coroutines.flow.Flow
-
-class GetExtensionRepos(private val preferences: SourcePreferences) {
-
-    fun subscribe(): Flow<Set<String>> {
-        return preferences.extensionRepos().changes()
-    }
-}

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

@@ -2,6 +2,7 @@ package eu.kanade.presentation.more.settings.screen
 
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.ReadOnlyComposable
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.platform.LocalContext
@@ -13,11 +14,11 @@ import eu.kanade.presentation.more.settings.Preference
 import eu.kanade.presentation.more.settings.screen.browse.ExtensionReposScreen
 import eu.kanade.tachiyomi.util.system.AuthenticatorUtil.authenticate
 import kotlinx.collections.immutable.persistentListOf
+import mihon.domain.extensionrepo.interactor.GetExtensionRepoCount
 import tachiyomi.core.common.i18n.stringResource
 import tachiyomi.i18n.MR
 import tachiyomi.presentation.core.i18n.pluralStringResource
 import tachiyomi.presentation.core.i18n.stringResource
-import tachiyomi.presentation.core.util.collectAsState
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 
@@ -33,7 +34,9 @@ object SettingsBrowseScreen : SearchableSettings {
         val navigator = LocalNavigator.currentOrThrow
 
         val sourcePreferences = remember { Injekt.get<SourcePreferences>() }
-        val reposCount by sourcePreferences.extensionRepos().collectAsState()
+        val getExtensionRepoCount = remember { Injekt.get<GetExtensionRepoCount>() }
+
+        val reposCount by getExtensionRepoCount.subscribe().collectAsState(0)
 
         return listOf(
             Preference.PreferenceGroup(
@@ -45,7 +48,7 @@ object SettingsBrowseScreen : SearchableSettings {
                     ),
                     Preference.PreferenceItem.TextPreference(
                         title = stringResource(MR.strings.label_extension_repos),
-                        subtitle = pluralStringResource(MR.plurals.num_repos, reposCount.size, reposCount.size),
+                        subtitle = pluralStringResource(MR.plurals.num_repos, reposCount, reposCount),
                         onClick = {
                             navigator.push(ExtensionReposScreen())
                         },

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

@@ -8,11 +8,14 @@ import androidx.compose.ui.platform.LocalContext
 import cafe.adriel.voyager.core.model.rememberScreenModel
 import cafe.adriel.voyager.navigator.LocalNavigator
 import cafe.adriel.voyager.navigator.currentOrThrow
+import eu.kanade.presentation.more.settings.screen.browse.components.ExtensionRepoConflictDialog
 import eu.kanade.presentation.more.settings.screen.browse.components.ExtensionRepoCreateDialog
 import eu.kanade.presentation.more.settings.screen.browse.components.ExtensionRepoDeleteDialog
 import eu.kanade.presentation.more.settings.screen.browse.components.ExtensionReposScreen
 import eu.kanade.presentation.util.Screen
+import eu.kanade.tachiyomi.util.system.openInBrowser
 import eu.kanade.tachiyomi.util.system.toast
+import kotlinx.collections.immutable.toImmutableSet
 import kotlinx.coroutines.flow.collectLatest
 import tachiyomi.presentation.core.screens.LoadingScreen
 
@@ -42,17 +45,19 @@ class ExtensionReposScreen(
         ExtensionReposScreen(
             state = successState,
             onClickCreate = { screenModel.showDialog(RepoDialog.Create) },
+            onOpenWebsite = { context.openInBrowser(it.website) },
             onClickDelete = { screenModel.showDialog(RepoDialog.Delete(it)) },
+            onClickRefresh = { screenModel.refreshRepos() },
             navigateUp = navigator::pop,
         )
 
         when (val dialog = successState.dialog) {
             null -> {}
-            RepoDialog.Create -> {
+            is RepoDialog.Create -> {
                 ExtensionRepoCreateDialog(
                     onDismissRequest = screenModel::dismissDialog,
                     onCreate = { screenModel.createRepo(it) },
-                    repos = successState.repos,
+                    repoUrls = successState.repos.map { it.baseUrl }.toImmutableSet(),
                 )
             }
             is RepoDialog.Delete -> {
@@ -62,6 +67,15 @@ class ExtensionReposScreen(
                     repo = dialog.repo,
                 )
             }
+
+            is RepoDialog.Conflict -> {
+                ExtensionRepoConflictDialog(
+                    onDismissRequest = screenModel::dismissDialog,
+                    onMigrate = { screenModel.replaceRepo(dialog.newRepo) },
+                    oldRepo = dialog.oldRepo,
+                    newRepo = dialog.newRepo,
+                )
+            }
         }
 
         LaunchedEffect(Unit) {

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

@@ -4,24 +4,29 @@ import androidx.compose.runtime.Immutable
 import cafe.adriel.voyager.core.model.StateScreenModel
 import cafe.adriel.voyager.core.model.screenModelScope
 import dev.icerock.moko.resources.StringResource
-import eu.kanade.domain.extension.interactor.CreateExtensionRepo
-import eu.kanade.domain.extension.interactor.DeleteExtensionRepo
-import eu.kanade.domain.extension.interactor.GetExtensionRepos
 import kotlinx.collections.immutable.ImmutableSet
 import kotlinx.collections.immutable.toImmutableSet
 import kotlinx.coroutines.channels.Channel
 import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.flow.receiveAsFlow
 import kotlinx.coroutines.flow.update
+import mihon.domain.extensionrepo.interactor.CreateExtensionRepo
+import mihon.domain.extensionrepo.interactor.DeleteExtensionRepo
+import mihon.domain.extensionrepo.interactor.GetExtensionRepo
+import mihon.domain.extensionrepo.interactor.ReplaceExtensionRepo
+import mihon.domain.extensionrepo.interactor.UpdateExtensionRepo
+import mihon.domain.extensionrepo.model.ExtensionRepo
 import tachiyomi.core.common.util.lang.launchIO
 import tachiyomi.i18n.MR
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
 
 class ExtensionReposScreenModel(
-    private val getExtensionRepos: GetExtensionRepos = Injekt.get(),
+    private val getExtensionRepo: GetExtensionRepo = Injekt.get(),
     private val createExtensionRepo: CreateExtensionRepo = Injekt.get(),
     private val deleteExtensionRepo: DeleteExtensionRepo = Injekt.get(),
+    private val replaceExtensionRepo: ReplaceExtensionRepo = Injekt.get(),
+    private val updateExtensionRepo: UpdateExtensionRepo = Injekt.get(),
 ) : StateScreenModel<RepoScreenState>(RepoScreenState.Loading) {
 
     private val _events: Channel<RepoEvent> = Channel(Int.MAX_VALUE)
@@ -29,7 +34,7 @@ class ExtensionReposScreenModel(
 
     init {
         screenModelScope.launchIO {
-            getExtensionRepos.subscribe()
+            getExtensionRepo.subscribeAll()
                 .collectLatest { repos ->
                     mutableState.update {
                         RepoScreenState.Success(
@@ -43,25 +48,51 @@ class ExtensionReposScreenModel(
     /**
      * Creates and adds a new repo to the database.
      *
-     * @param name The name of the repo to create.
+     * @param baseUrl The baseUrl of the repo to create.
      */
-    fun createRepo(name: String) {
+    fun createRepo(baseUrl: String) {
         screenModelScope.launchIO {
-            when (createExtensionRepo.await(name)) {
+            when (val result = createExtensionRepo.await(baseUrl)) {
-                is CreateExtensionRepo.Result.InvalidUrl -> _events.send(RepoEvent.InvalidUrl)
+                CreateExtensionRepo.Result.InvalidUrl -> _events.send(RepoEvent.InvalidUrl)
+                CreateExtensionRepo.Result.RepoAlreadyExists -> _events.send(RepoEvent.RepoAlreadyExists)
+                is CreateExtensionRepo.Result.DuplicateFingerprint -> {
+                    showDialog(RepoDialog.Conflict(result.oldRepo, result.newRepo))
+                }
                 else -> {}
             }
         }
     }
 
     /**
-     * Deletes the given repo from the database.
+     * Inserts a repo to the database, replace a matching repo with the same signing key fingerprint if found.
      *
-     * @param repo The repo to delete.
+     * @param newRepo The repo to insert
      */
-    fun deleteRepo(repo: String) {
+    fun replaceRepo(newRepo: ExtensionRepo) {
         screenModelScope.launchIO {
-            deleteExtensionRepo.await(repo)
+            replaceExtensionRepo.await(newRepo)
+        }
+    }
+
+    /**
+     * Refreshes information for each repository.
+     */
+    fun refreshRepos() {
+        val status = state.value
+
+        if (status is RepoScreenState.Success) {
+            screenModelScope.launchIO {
+                updateExtensionRepo.awaitAll()
+            }
+        }
+    }
+
+    /**
+     * Deletes the given repo from the database
+     */
+    fun deleteRepo(baseUrl: String) {
+        screenModelScope.launchIO {
+            deleteExtensionRepo.await(baseUrl)
         }
     }
 
@@ -87,11 +118,13 @@ class ExtensionReposScreenModel(
 sealed class RepoEvent {
     sealed class LocalizedMessage(val stringRes: StringResource) : RepoEvent()
     data object InvalidUrl : LocalizedMessage(MR.strings.invalid_repo_name)
+    data object RepoAlreadyExists : LocalizedMessage(MR.strings.error_repo_exists)
 }
 
 sealed class RepoDialog {
     data object Create : RepoDialog()
     data class Delete(val repo: String) : RepoDialog()
+    data class Conflict(val oldRepo: ExtensionRepo, val newRepo: ExtensionRepo) : RepoDialog()
 }
 
 sealed class RepoScreenState {
@@ -101,7 +134,8 @@ sealed class RepoScreenState {
 
     @Immutable
     data class Success(
-        val repos: ImmutableSet<String>,
+        val repos: ImmutableSet<ExtensionRepo>,
+        val oldRepos: ImmutableSet<String>? = null,
         val dialog: RepoDialog? = null,
     ) : RepoScreenState() {
 

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

@@ -9,6 +9,7 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.LazyListState
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.outlined.Label
+import androidx.compose.material.icons.automirrored.outlined.OpenInNew
 import androidx.compose.material.icons.outlined.ContentCopy
 import androidx.compose.material.icons.outlined.Delete
 import androidx.compose.material3.ElevatedCard
@@ -22,15 +23,17 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import eu.kanade.tachiyomi.util.system.copyToClipboard
 import kotlinx.collections.immutable.ImmutableSet
+import mihon.domain.extensionrepo.model.ExtensionRepo
 import tachiyomi.i18n.MR
 import tachiyomi.presentation.core.components.material.padding
 import tachiyomi.presentation.core.i18n.stringResource
 
 @Composable
 fun ExtensionReposContent(
-    repos: ImmutableSet<String>,
+    repos: ImmutableSet<ExtensionRepo>,
     lazyListState: LazyListState,
     paddingValues: PaddingValues,
+    onOpenWebsite: (ExtensionRepo) -> Unit,
     onClickDelete: (String) -> Unit,
     modifier: Modifier = Modifier,
 ) {
@@ -44,8 +47,9 @@ fun ExtensionReposContent(
             item {
                 ExtensionRepoListItem(
                     modifier = Modifier.animateItemPlacement(),
-                    repo = it,
+                    repo = it.name,
-                    onDelete = { onClickDelete(it) },
+                    onOpenWebsite = { onOpenWebsite(it) },
+                    onDelete = { onClickDelete(it.baseUrl) },
                 )
             }
         }
@@ -55,6 +59,7 @@ fun ExtensionReposContent(
 @Composable
 private fun ExtensionRepoListItem(
     repo: String,
+    onOpenWebsite: () -> Unit,
     onDelete: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
@@ -74,13 +79,24 @@ private fun ExtensionRepoListItem(
             verticalAlignment = Alignment.CenterVertically,
         ) {
             Icon(imageVector = Icons.AutoMirrored.Outlined.Label, contentDescription = null)
-            Text(text = repo, modifier = Modifier.padding(start = MaterialTheme.padding.medium))
+            Text(
+                text = repo,
+                modifier = Modifier.padding(start = MaterialTheme.padding.medium),
+                style = MaterialTheme.typography.titleMedium,
+            )
         }
 
         Row(
             modifier = Modifier.fillMaxWidth(),
             horizontalArrangement = Arrangement.End,
         ) {
+            IconButton(onClick = onOpenWebsite) {
+                Icon(
+                    imageVector = Icons.AutoMirrored.Outlined.OpenInNew,
+                    contentDescription = stringResource(MR.strings.action_open_in_browser),
+                )
+            }
+
             IconButton(
                 onClick = {
                     val url = "$repo/index.min.json"

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

@@ -16,6 +16,7 @@ import androidx.compose.ui.focus.FocusRequester
 import androidx.compose.ui.focus.focusRequester
 import kotlinx.collections.immutable.ImmutableSet
 import kotlinx.coroutines.delay
+import mihon.domain.extensionrepo.model.ExtensionRepo
 import tachiyomi.i18n.MR
 import tachiyomi.presentation.core.i18n.stringResource
 import kotlin.time.Duration.Companion.seconds
@@ -24,12 +25,12 @@ import kotlin.time.Duration.Companion.seconds
 fun ExtensionRepoCreateDialog(
     onDismissRequest: () -> Unit,
     onCreate: (String) -> Unit,
-    repos: ImmutableSet<String>,
+    repoUrls: ImmutableSet<String>,
 ) {
     var name by remember { mutableStateOf("") }
 
     val focusRequester = remember { FocusRequester() }
-    val nameAlreadyExists = remember(name) { repos.contains(name) }
+    val nameAlreadyExists = remember(name) { repoUrls.contains(name) }
 
     AlertDialog(
         onDismissRequest = onDismissRequest,
@@ -115,3 +116,36 @@ fun ExtensionRepoDeleteDialog(
         },
     )
 }
+
+@Composable
+fun ExtensionRepoConflictDialog(
+    oldRepo: ExtensionRepo,
+    newRepo: ExtensionRepo,
+    onDismissRequest: () -> Unit,
+    onMigrate: () -> Unit,
+) {
+    AlertDialog(
+        onDismissRequest = onDismissRequest,
+        confirmButton = {
+            TextButton(
+                onClick = {
+                    onMigrate()
+                    onDismissRequest()
+                },
+            ) {
+                Text(text = stringResource(MR.strings.action_replace_repo))
+            }
+        },
+        dismissButton = {
+            TextButton(onClick = onDismissRequest) {
+                Text(text = stringResource(MR.strings.action_cancel))
+            }
+        },
+        title = {
+            Text(text = stringResource(MR.strings.action_replace_repo_title))
+        },
+        text = {
+            Text(text = stringResource(MR.strings.action_replace_repo_message, newRepo.name, oldRepo.name))
+        },
+    )
+}

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

@@ -5,12 +5,17 @@ package eu.kanade.presentation.more.settings.screen.browse.components
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Refresh
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import eu.kanade.presentation.category.components.CategoryFloatingActionButton
 import eu.kanade.presentation.components.AppBar
 import eu.kanade.presentation.more.settings.screen.browse.RepoScreenState
+import mihon.domain.extensionrepo.model.ExtensionRepo
 import tachiyomi.i18n.MR
 import tachiyomi.presentation.core.components.material.Scaffold
 import tachiyomi.presentation.core.components.material.padding
@@ -23,7 +28,9 @@ import tachiyomi.presentation.core.util.plus
 fun ExtensionReposScreen(
     state: RepoScreenState.Success,
     onClickCreate: () -> Unit,
+    onOpenWebsite: (ExtensionRepo) -> Unit,
     onClickDelete: (String) -> Unit,
+    onClickRefresh: () -> Unit,
     navigateUp: () -> Unit,
 ) {
     val lazyListState = rememberLazyListState()
@@ -33,6 +40,14 @@ fun ExtensionReposScreen(
                 navigateUp = navigateUp,
                 title = stringResource(MR.strings.label_extension_repos),
                 scrollBehavior = scrollBehavior,
+                actions = {
+                    IconButton(onClick = onClickRefresh) {
+                        Icon(
+                            imageVector = Icons.Outlined.Refresh,
+                            contentDescription = stringResource(resource = MR.strings.action_webview_refresh),
+                        )
+                    }
+                },
             )
         },
         floatingActionButton = {
@@ -55,6 +70,7 @@ fun ExtensionReposScreen(
             lazyListState = lazyListState,
             paddingValues = paddingValues + topSmallPaddingValues +
                 PaddingValues(horizontal = MaterialTheme.padding.medium),
+            onOpenWebsite = onOpenWebsite,
             onClickDelete = onClickDelete,
         )
     }

app/src/main/java/eu/kanade/tachiyomi/Migrations.kt

@@ -1,10 +1,18 @@
 package eu.kanade.tachiyomi
 
 import android.content.Context
+import eu.kanade.domain.source.service.SourcePreferences
 import eu.kanade.tachiyomi.data.backup.create.BackupCreateJob
 import eu.kanade.tachiyomi.data.library.LibraryUpdateJob
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import logcat.LogPriority
+import mihon.domain.extensionrepo.exception.SaveExtensionRepoException
+import mihon.domain.extensionrepo.repository.ExtensionRepoRepository
 import tachiyomi.core.common.preference.Preference
 import tachiyomi.core.common.preference.PreferenceStore
+import tachiyomi.core.common.util.lang.launchIO
+import tachiyomi.core.common.util.system.logcat
 
 object Migrations {
 
@@ -13,10 +21,12 @@ object Migrations {
      *
      * @return true if a migration is performed, false otherwise.
      */
-    @Suppress("SameReturnValue")
+    @Suppress("SameReturnValue", "MagicNumber")
     fun upgrade(
         context: Context,
         preferenceStore: PreferenceStore,
+        sourcePreferences: SourcePreferences,
+        extensionRepoRepository: ExtensionRepoRepository,
     ): Boolean {
         val lastVersionCode = preferenceStore.getInt(Preference.appStateKey("last_version_code"), 0)
         val oldVersion = lastVersionCode.get()
@@ -31,6 +41,27 @@ object Migrations {
             if (oldVersion == 0) {
                 return false
             }
+
+            val coroutineScope = CoroutineScope(Dispatchers.IO)
+
+            if (oldVersion < 6) {
+                coroutineScope.launchIO {
+                    for ((index, source) in sourcePreferences.extensionRepos().get().withIndex()) {
+                        try {
+                            extensionRepoRepository.upsertRepository(
+                                source,
+                                "Repo #${index + 1}",
+                                null,
+                                source,
+                                "NOFINGERPRINT-${index + 1}",
+                            )
+                        } catch (e: SaveExtensionRepoException) {
+                            logcat(LogPriority.ERROR, e) { "Error Migrating Extension Repo with baseUrl: $source" }
+                        }
+                    }
+                    sourcePreferences.extensionRepos().delete()
+                }
+            }
         }
 
         return false

app/src/main/java/eu/kanade/tachiyomi/extension/api/ExtensionApi.kt

@@ -1,7 +1,6 @@
 package eu.kanade.tachiyomi.extension.api
 
 import android.content.Context
-import eu.kanade.domain.source.service.SourcePreferences
 import eu.kanade.tachiyomi.extension.ExtensionManager
 import eu.kanade.tachiyomi.extension.model.Extension
 import eu.kanade.tachiyomi.extension.model.LoadResult
@@ -10,9 +9,14 @@ import eu.kanade.tachiyomi.network.GET
 import eu.kanade.tachiyomi.network.NetworkHelper
 import eu.kanade.tachiyomi.network.awaitSuccess
 import eu.kanade.tachiyomi.network.parseAs
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
 import logcat.LogPriority
+import mihon.domain.extensionrepo.interactor.GetExtensionRepo
+import mihon.domain.extensionrepo.interactor.UpdateExtensionRepo
+import mihon.domain.extensionrepo.model.ExtensionRepo
 import tachiyomi.core.common.preference.Preference
 import tachiyomi.core.common.preference.PreferenceStore
 import tachiyomi.core.common.util.lang.withIOContext
@@ -25,7 +29,8 @@ internal class ExtensionApi {
 
     private val networkService: NetworkHelper by injectLazy()
     private val preferenceStore: PreferenceStore by injectLazy()
-    private val sourcePreferences: SourcePreferences by injectLazy()
+    private val getExtensionRepo: GetExtensionRepo by injectLazy()
+    private val updateExtensionRepo: UpdateExtensionRepo by injectLazy()
     private val extensionManager: ExtensionManager by injectLazy()
     private val json: Json by injectLazy()
 
@@ -35,11 +40,15 @@ internal class ExtensionApi {
 
     suspend fun findExtensions(): List<Extension.Available> {
         return withIOContext {
-            sourcePreferences.extensionRepos().get().flatMap { getExtensions(it) }
+            getExtensionRepo.getAll()
+                .map { async { getExtensions(it) } }
+                .awaitAll()
+                .flatten()
         }
     }
 
-    private suspend fun getExtensions(repoBaseUrl: String): List<Extension.Available> {
+    private suspend fun getExtensions(extRepo: ExtensionRepo): List<Extension.Available> {
+        val repoBaseUrl = extRepo.baseUrl
         return try {
             val response = networkService.client
                 .newCall(GET("$repoBaseUrl/index.min.json"))
@@ -67,6 +76,9 @@ internal class ExtensionApi {
             return null
         }
 
+        // Update extension repo details
+        updateExtensionRepo.awaitAll()
+
         val extensions = if (fromAvailableExtensionList) {
             extensionManager.availableExtensionsFlow.value
         } else {

app/src/main/java/eu/kanade/tachiyomi/ui/main/MainActivity.kt

@@ -134,6 +134,8 @@ class MainActivity : BaseActivity() {
             Migrations.upgrade(
                 context = applicationContext,
                 preferenceStore = Injekt.get(),
+                sourcePreferences = Injekt.get(),
+                extensionRepoRepository = Injekt.get(),
             )
         } else {
             false

data/src/main/java/mihon/data/repository/ExtensionRepoRepositoryImpl.kt

@@ -0,0 +1,93 @@
+package mihon.data.repository
+
+import android.database.sqlite.SQLiteException
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import mihon.domain.extensionrepo.exception.SaveExtensionRepoException
+import mihon.domain.extensionrepo.model.ExtensionRepo
+import mihon.domain.extensionrepo.repository.ExtensionRepoRepository
+import tachiyomi.data.DatabaseHandler
+
+class ExtensionRepoRepositoryImpl(
+    private val handler: DatabaseHandler,
+) : ExtensionRepoRepository {
+    override fun subscribeAll(): Flow<List<ExtensionRepo>> {
+        return handler.subscribeToList { extension_reposQueries.findAll(::mapExtensionRepo) }
+    }
+
+    override suspend fun getAll(): List<ExtensionRepo> {
+        return handler.awaitList { extension_reposQueries.findAll(::mapExtensionRepo) }
+    }
+
+    override suspend fun getRepository(baseUrl: String): ExtensionRepo? {
+        return handler.awaitOneOrNull { extension_reposQueries.findOne(baseUrl, ::mapExtensionRepo) }
+    }
+
+    override suspend fun getRepositoryBySigningKeyFingerprint(fingerprint: String): ExtensionRepo? {
+        return handler.awaitOneOrNull {
+            extension_reposQueries.findOneBySigningKeyFingerprint(fingerprint, ::mapExtensionRepo)
+        }
+    }
+
+    override fun getCount(): Flow<Int> {
+        return handler.subscribeToOne { extension_reposQueries.count() }.map { it.toInt() }
+    }
+
+    override suspend fun insertRepository(
+        baseUrl: String,
+        name: String,
+        shortName: String?,
+        website: String,
+        signingKeyFingerprint: String,
+    ) {
+        try {
+            handler.await { extension_reposQueries.insert(baseUrl, name, shortName, website, signingKeyFingerprint) }
+        } catch (ex: SQLiteException) {
+            throw SaveExtensionRepoException(ex)
+        }
+    }
+
+    override suspend fun upsertRepository(
+        baseUrl: String,
+        name: String,
+        shortName: String?,
+        website: String,
+        signingKeyFingerprint: String,
+    ) {
+        try {
+            handler.await { extension_reposQueries.upsert(baseUrl, name, shortName, website, signingKeyFingerprint) }
+        } catch (ex: SQLiteException) {
+            throw SaveExtensionRepoException(ex)
+        }
+    }
+
+    override suspend fun replaceRepository(newRepo: ExtensionRepo) {
+        handler.await {
+            extension_reposQueries.replace(
+                newRepo.baseUrl,
+                newRepo.name,
+                newRepo.shortName,
+                newRepo.website,
+                newRepo.signingKeyFingerprint,
+            )
+        }
+    }
+
+    override suspend fun deleteRepository(baseUrl: String) {
+        return handler.await { extension_reposQueries.delete(baseUrl) }
+    }
+
+    private fun mapExtensionRepo(
+        baseUrl: String,
+        name: String,
+        shortName: String?,
+        website: String,
+        signingKeyFingerprint: String,
+    ): ExtensionRepo = ExtensionRepo(
+        baseUrl = baseUrl,
+        name = name,
+        shortName = shortName,
+        website = website,
+        signingKeyFingerprint = signingKeyFingerprint,
+    )
+}

data/src/main/sqldelight/tachiyomi/data/extension_repos.sq

@@ -0,0 +1,57 @@
+CREATE TABLE extension_repos (
+    base_url TEXT NOT NULL PRIMARY KEY,
+    name TEXT NOT NULL,
+    short_name TEXT,
+    website TEXT NOT NULL,
+    signing_key_fingerprint TEXT UNIQUE NOT NULL
+);
+
+findOne:
+SELECT *
+FROM extension_repos
+WHERE base_url = :base_url;
+
+findOneBySigningKeyFingerprint:
+SELECT *
+FROM extension_repos
+WHERE signing_key_fingerprint = :fingerprint;
+
+findAll:
+SELECT *
+FROM extension_repos;
+
+count:
+SELECT COUNT(*)
+FROM extension_repos;
+
+insert:
+INSERT INTO extension_repos(base_url, name, short_name, website, signing_key_fingerprint)
+VALUES (:base_url, :name, :short_name, :website, :fingerprint);
+
+upsert:
+INSERT INTO extension_repos(base_url, name, short_name, website, signing_key_fingerprint)
+VALUES (:base_url, :name, :short_name, :website, :fingerprint)
+ON CONFLICT(base_url)
+DO UPDATE
+SET
+    name = :name,
+    short_name = :short_name,
+    website =: website,
+    signing_key_fingerprint = :fingerprint
+WHERE base_url = base_url;
+
+replace:
+INSERT INTO extension_repos(base_url, name, short_name, website, signing_key_fingerprint)
+VALUES (:base_url, :name, :short_name, :website, :fingerprint)
+ON CONFLICT(signing_key_fingerprint)
+DO UPDATE
+SET
+    base_url = :base_url,
+    name = :name,
+    short_name = :short_name,
+    website =: website
+WHERE signing_key_fingerprint = signing_key_fingerprint;
+
+delete:
+DELETE FROM extension_repos
+WHERE base_url = :base_url;

data/src/main/sqldelight/tachiyomi/migrations/3.sqm

@@ -0,0 +1,8 @@
+-- Create ExtensionRepo table --
+CREATE TABLE extension_repos (
+    base_url TEXT NOT NULL PRIMARY KEY,
+    name TEXT NOT NULL,
+    short_name TEXT,
+    website TEXT NOT NULL,
+    signing_key_fingerprint TEXT UNIQUE NOT NULL
+);

domain/build.gradle.kts

@@ -33,6 +33,7 @@ tasks {
     withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
         kotlinOptions.freeCompilerArgs += listOf(
             "-opt-in=kotlinx.coroutines.ExperimentalCoroutinesApi",
+            "-Xcontext-receivers",
         )
     }
 }

domain/src/main/java/mihon/domain/extensionrepo/exception/SaveExtensionRepoException.kt

@@ -0,0 +1,10 @@
+package mihon.domain.extensionrepo.exception
+
+import java.io.IOException
+
+/**
+ * Exception to abstract over SQLiteException and SQLiteConstraintException for multiplatform.
+ *
+ * @param throwable the source throwable to include for tracing.
+ */
+class SaveExtensionRepoException(throwable: Throwable) : IOException("Error Saving Repository to Database", throwable)

domain/src/main/java/mihon/domain/extensionrepo/interactor/CreateExtensionRepo.kt

@@ -0,0 +1,81 @@
+package mihon.domain.extensionrepo.interactor
+
+import eu.kanade.tachiyomi.network.NetworkHelper
+import logcat.LogPriority
+import mihon.domain.extensionrepo.exception.SaveExtensionRepoException
+import mihon.domain.extensionrepo.model.ExtensionRepo
+import mihon.domain.extensionrepo.repository.ExtensionRepoRepository
+import mihon.domain.extensionrepo.service.ExtensionRepoService
+import okhttp3.OkHttpClient
+import tachiyomi.core.common.util.system.logcat
+import uy.kohesive.injekt.injectLazy
+
+class CreateExtensionRepo(
+    private val extensionRepoRepository: ExtensionRepoRepository,
+) {
+    private val repoRegex = """^https://.*/index\.min\.json$""".toRegex()
+
+    private val networkService: NetworkHelper by injectLazy()
+
+    private val client: OkHttpClient
+        get() = networkService.client
+
+    private val extensionRepoService = ExtensionRepoService(client)
+
+    suspend fun await(repoUrl: String): Result {
+        if (!repoUrl.matches(repoRegex)) {
+            return Result.InvalidUrl
+        }
+
+        val baseUrl = repoUrl.removeSuffix("/index.min.json")
+        return extensionRepoService.fetchRepoDetails(baseUrl)?.let { insert(it) } ?: Result.InvalidUrl
+    }
+
+    private suspend fun insert(repo: ExtensionRepo): Result {
+        return try {
+            extensionRepoRepository.insertRepository(
+                repo.baseUrl,
+                repo.name,
+                repo.shortName,
+                repo.website,
+                repo.signingKeyFingerprint,
+            )
+            Result.Success
+        } catch (e: SaveExtensionRepoException) {
+            logcat(LogPriority.WARN, e) { "SQL Conflict attempting to add new repository ${repo.baseUrl}" }
+            return handleInsertionError(repo)
+        }
+    }
+
+    /**
+     * Error Handler for insert when there are trying to create new repositories
+     *
+     * SaveExtensionRepoException doesn't provide constraint info in exceptions.
+     * First check if the conflict was on primary key. if so return RepoAlreadyExists
+     * Then check if the conflict was on fingerprint. if so Return DuplicateFingerprint
+     * If neither are found, there was some other Error, and return Result.Error
+     *
+     * @param repo Extension Repo holder for passing to DB/Error Dialog
+     */
+    @Suppress("ReturnCount")
+    private suspend fun handleInsertionError(repo: ExtensionRepo): Result {
+        val repoExists = extensionRepoRepository.getRepository(repo.baseUrl)
+        if (repoExists != null) {
+            return Result.RepoAlreadyExists
+        }
+        val matchingFingerprintRepo =
+            extensionRepoRepository.getRepositoryBySigningKeyFingerprint(repo.signingKeyFingerprint)
+        if (matchingFingerprintRepo != null) {
+            return Result.DuplicateFingerprint(matchingFingerprintRepo, repo)
+        }
+        return Result.Error
+    }
+
+    sealed interface Result {
+        data class DuplicateFingerprint(val oldRepo: ExtensionRepo, val newRepo: ExtensionRepo) : Result
+        data object InvalidUrl : Result
+        data object RepoAlreadyExists : Result
+        data object Success : Result
+        data object Error : Result
+    }
+}

domain/src/main/java/mihon/domain/extensionrepo/interactor/DeleteExtensionRepo.kt

@@ -0,0 +1,11 @@
+package mihon.domain.extensionrepo.interactor
+
+import mihon.domain.extensionrepo.repository.ExtensionRepoRepository
+
+class DeleteExtensionRepo(
+    private val extensionRepoRepository: ExtensionRepoRepository,
+) {
+    suspend fun await(baseUrl: String) {
+        extensionRepoRepository.deleteRepository(baseUrl)
+    }
+}

domain/src/main/java/mihon/domain/extensionrepo/interactor/GetExtensionRepo.kt

@@ -0,0 +1,13 @@
+package mihon.domain.extensionrepo.interactor
+
+import kotlinx.coroutines.flow.Flow
+import mihon.domain.extensionrepo.model.ExtensionRepo
+import mihon.domain.extensionrepo.repository.ExtensionRepoRepository
+
+class GetExtensionRepo(
+    private val extensionRepoRepository: ExtensionRepoRepository,
+) {
+    fun subscribeAll(): Flow<List<ExtensionRepo>> = extensionRepoRepository.subscribeAll()
+
+    suspend fun getAll(): List<ExtensionRepo> = extensionRepoRepository.getAll()
+}

domain/src/main/java/mihon/domain/extensionrepo/interactor/GetExtensionRepoCount.kt

@@ -0,0 +1,9 @@
+package mihon.domain.extensionrepo.interactor
+
+import mihon.domain.extensionrepo.repository.ExtensionRepoRepository
+
+class GetExtensionRepoCount(
+    private val extensionRepoRepository: ExtensionRepoRepository,
+) {
+    fun subscribe() = extensionRepoRepository.getCount()
+}

domain/src/main/java/mihon/domain/extensionrepo/interactor/ReplaceExtensionRepo.kt

@@ -0,0 +1,12 @@
+package mihon.domain.extensionrepo.interactor
+
+import mihon.domain.extensionrepo.model.ExtensionRepo
+import mihon.domain.extensionrepo.repository.ExtensionRepoRepository
+
+class ReplaceExtensionRepo(
+    private val extensionRepoRepository: ExtensionRepoRepository,
+) {
+    suspend fun await(repo: ExtensionRepo) {
+        extensionRepoRepository.replaceRepository(repo)
+    }
+}

domain/src/main/java/mihon/domain/extensionrepo/interactor/UpdateExtensionRepo.kt

@@ -0,0 +1,33 @@
+package mihon.domain.extensionrepo.interactor
+
+import eu.kanade.tachiyomi.network.NetworkHelper
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
+import kotlinx.coroutines.coroutineScope
+import mihon.domain.extensionrepo.model.ExtensionRepo
+import mihon.domain.extensionrepo.repository.ExtensionRepoRepository
+import mihon.domain.extensionrepo.service.ExtensionRepoService
+
+class UpdateExtensionRepo(
+    private val extensionRepoRepository: ExtensionRepoRepository,
+    networkService: NetworkHelper,
+) {
+
+    private val extensionRepoService = ExtensionRepoService(networkService.client)
+
+    suspend fun awaitAll() = coroutineScope {
+        extensionRepoRepository.getAll()
+            .map { async { await(it) } }
+            .awaitAll()
+    }
+
+    suspend fun await(repo: ExtensionRepo) {
+        val newRepo = extensionRepoService.fetchRepoDetails(repo.baseUrl) ?: return
+        if (
+            repo.signingKeyFingerprint.startsWith("NOFINGERPRINT") ||
+            repo.signingKeyFingerprint == newRepo.signingKeyFingerprint
+        ) {
+            extensionRepoRepository.upsertRepository(newRepo)
+        }
+    }
+}

domain/src/main/java/mihon/domain/extensionrepo/model/ExtensionRepo.kt

@@ -0,0 +1,9 @@
+package mihon.domain.extensionrepo.model
+
+data class ExtensionRepo(
+    val baseUrl: String,
+    val name: String,
+    val shortName: String?,
+    val website: String,
+    val signingKeyFingerprint: String,
+)

domain/src/main/java/mihon/domain/extensionrepo/repository/ExtensionRepoRepository.kt

@@ -0,0 +1,47 @@
+package mihon.domain.extensionrepo.repository
+
+import kotlinx.coroutines.flow.Flow
+import mihon.domain.extensionrepo.model.ExtensionRepo
+
+interface ExtensionRepoRepository {
+
+    fun subscribeAll(): Flow<List<ExtensionRepo>>
+
+    suspend fun getAll(): List<ExtensionRepo>
+
+    suspend fun getRepository(baseUrl: String): ExtensionRepo?
+
+    suspend fun getRepositoryBySigningKeyFingerprint(fingerprint: String): ExtensionRepo?
+
+    fun getCount(): Flow<Int>
+
+    suspend fun insertRepository(
+        baseUrl: String,
+        name: String,
+        shortName: String?,
+        website: String,
+        signingKeyFingerprint: String,
+    )
+
+    suspend fun upsertRepository(
+        baseUrl: String,
+        name: String,
+        shortName: String?,
+        website: String,
+        signingKeyFingerprint: String,
+    )
+
+    suspend fun upsertRepository(repo: ExtensionRepo) {
+        upsertRepository(
+            baseUrl = repo.baseUrl,
+            name = repo.name,
+            shortName = repo.shortName,
+            website = repo.website,
+            signingKeyFingerprint = repo.signingKeyFingerprint,
+        )
+    }
+
+    suspend fun replaceRepository(newRepo: ExtensionRepo)
+
+    suspend fun deleteRepository(baseUrl: String)
+}

domain/src/main/java/mihon/domain/extensionrepo/service/ExtensionRepoService.kt

@@ -0,0 +1,57 @@
+package mihon.domain.extensionrepo.service
+
+import androidx.core.net.toUri
+import eu.kanade.tachiyomi.network.GET
+import eu.kanade.tachiyomi.network.HttpException
+import eu.kanade.tachiyomi.network.awaitSuccess
+import eu.kanade.tachiyomi.network.parseAs
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.JsonObject
+import kotlinx.serialization.json.jsonObject
+import kotlinx.serialization.json.jsonPrimitive
+import mihon.domain.extensionrepo.model.ExtensionRepo
+import okhttp3.OkHttpClient
+import tachiyomi.core.common.util.lang.withIOContext
+import uy.kohesive.injekt.injectLazy
+
+class ExtensionRepoService(
+    private val client: OkHttpClient,
+) {
+
+    private val json: Json by injectLazy()
+
+    suspend fun fetchRepoDetails(
+        repo: String,
+    ): ExtensionRepo? {
+        return withIOContext {
+            val url = "$repo/repo.json".toUri()
+
+            try {
+                val response = with(json) {
+                    client.newCall(GET(url.toString()))
+                        .awaitSuccess()
+                        .parseAs<JsonObject>()
+                }
+                response["meta"]
+                    ?.jsonObject
+                    ?.let { jsonToExtensionRepo(baseUrl = repo, it) }
+            } catch (_: HttpException) {
+                null
+            }
+        }
+    }
+
+    private fun jsonToExtensionRepo(baseUrl: String, obj: JsonObject): ExtensionRepo? {
+        return try {
+            ExtensionRepo(
+                baseUrl = baseUrl,
+                name = obj["name"]!!.jsonPrimitive.content,
+                shortName = obj["shortName"]?.jsonPrimitive?.content,
+                website = obj["website"]!!.jsonPrimitive.content,
+                signingKeyFingerprint = obj["signingKeyFingerprint"]!!.jsonPrimitive.content,
+            )
+        } catch (_: NullPointerException) {
+            null
+        }
+    }
+}

i18n/src/commonMain/resources/MR/base/strings.xml

@@ -347,6 +347,9 @@
     <string name="invalid_repo_name">Invalid repo URL</string>
     <string name="delete_repo_confirmation">Do you wish to delete the repo \"%s\"?</string>
     <string name="action_open_repo">Open source repo</string>
+    <string name="action_replace_repo">Replace</string>
+    <string name="action_replace_repo_title">Signing Key Fingerprint Already Exists</string>
+    <string name="action_replace_repo_message">Repository %1$s has the same Signing Key Fingerprint as %2$s.\nIf this is expected, %2$s will be replaced, otherwise contact your repo maintainer.</string>
 
       <!-- Reader section -->
     <string name="pref_fullscreen">Fullscreen</string>