feat: add sync preferences and sync job.

app/src/main/java/eu/kanade/domain/sync/SyncPreferences.kt

@@ -0,0 +1,93 @@
+
+package eu.kanade.domain.sync
+
+import eu.kanade.domain.sync.models.SyncSettings
+import eu.kanade.tachiyomi.data.sync.models.SyncTriggerOptions
+import tachiyomi.core.preference.Preference
+import tachiyomi.core.preference.PreferenceStore
+import java.util.UUID
+
+class SyncPreferences(
+    private val preferenceStore: PreferenceStore,
+) {
+    fun clientHost() = preferenceStore.getString("sync_client_host", "https://sync.tachiyomi.org")
+    fun clientAPIKey() = preferenceStore.getString("sync_client_api_key", "")
+    fun lastSyncTimestamp() = preferenceStore.getLong(Preference.appStateKey("last_sync_timestamp"), 0L)
+
+    fun syncInterval() = preferenceStore.getInt("sync_interval", 0)
+    fun syncService() = preferenceStore.getInt("sync_service", 0)
+
+    fun googleDriveAccessToken() = preferenceStore.getString(
+        Preference.appStateKey("google_drive_access_token"),
+        "",
+    )
+
+    fun googleDriveRefreshToken() = preferenceStore.getString(
+        Preference.appStateKey("google_drive_refresh_token"),
+        "",
+    )
+
+    fun uniqueDeviceID(): String {
+        val uniqueIDPreference = preferenceStore.getString("unique_device_id", "")
+
+        // Retrieve the current value of the preference
+        var uniqueID = uniqueIDPreference.get()
+        if (uniqueID.isBlank()) {
+            uniqueID = UUID.randomUUID().toString()
+            uniqueIDPreference.set(uniqueID)
+        }
+
+        return uniqueID
+    }
+
+    fun isSyncEnabled(): Boolean {
+        return syncService().get() != 0
+    }
+
+    fun getSyncSettings(): SyncSettings {
+        return SyncSettings(
+            libraryEntries = preferenceStore.getBoolean("library_entries", true).get(),
+            categories = preferenceStore.getBoolean("categories", true).get(),
+            chapters = preferenceStore.getBoolean("chapters", true).get(),
+            tracking = preferenceStore.getBoolean("tracking", true).get(),
+            history = preferenceStore.getBoolean("history", true).get(),
+            appSettings = preferenceStore.getBoolean("appSettings", true).get(),
+            sourceSettings = preferenceStore.getBoolean("sourceSettings", true).get(),
+            privateSettings = preferenceStore.getBoolean("privateSettings", true).get(),
+        )
+    }
+
+    fun setSyncSettings(syncSettings: SyncSettings) {
+        preferenceStore.getBoolean("library_entries", true).set(syncSettings.libraryEntries)
+        preferenceStore.getBoolean("categories", true).set(syncSettings.categories)
+        preferenceStore.getBoolean("chapters", true).set(syncSettings.chapters)
+        preferenceStore.getBoolean("tracking", true).set(syncSettings.tracking)
+        preferenceStore.getBoolean("history", true).set(syncSettings.history)
+        preferenceStore.getBoolean("appSettings", true).set(syncSettings.appSettings)
+        preferenceStore.getBoolean("sourceSettings", true).set(syncSettings.sourceSettings)
+        preferenceStore.getBoolean("privateSettings", true).set(syncSettings.privateSettings)
+    }
+
+    fun getSyncTriggerOptions(): SyncTriggerOptions {
+        return SyncTriggerOptions(
+            syncOnChapterRead = preferenceStore.getBoolean("sync_on_chapter_read", false).get(),
+            syncOnChapterOpen = preferenceStore.getBoolean("sync_on_chapter_open", false).get(),
+            syncOnAppStart = preferenceStore.getBoolean("sync_on_app_start", false).get(),
+            syncOnAppResume = preferenceStore.getBoolean("sync_on_app_resume", false).get(),
+            syncOnLibraryUpdate = preferenceStore.getBoolean("sync_on_library_update", false).get(),
+        )
+    }
+
+    fun setSyncTriggerOptions(syncTriggerOptions: SyncTriggerOptions) {
+        preferenceStore.getBoolean("sync_on_chapter_read", false)
+            .set(syncTriggerOptions.syncOnChapterRead)
+        preferenceStore.getBoolean("sync_on_chapter_open", false)
+            .set(syncTriggerOptions.syncOnChapterOpen)
+        preferenceStore.getBoolean("sync_on_app_start", false)
+            .set(syncTriggerOptions.syncOnAppStart)
+        preferenceStore.getBoolean("sync_on_app_resume", false)
+            .set(syncTriggerOptions.syncOnAppResume)
+        preferenceStore.getBoolean("sync_on_library_update", false)
+            .set(syncTriggerOptions.syncOnLibraryUpdate)
+    }
+}

app/src/main/java/eu/kanade/domain/sync/models/SyncSettings.kt

@@ -0,0 +1,12 @@
+package eu.kanade.domain.sync.models
+
+data class SyncSettings(
+    val libraryEntries: Boolean = true,
+    val categories: Boolean = true,
+    val chapters: Boolean = true,
+    val tracking: Boolean = true,
+    val history: Boolean = true,
+    val appSettings: Boolean = true,
+    val sourceSettings: Boolean = true,
+    val privateSettings: Boolean = false,
+)

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

@@ -24,6 +24,7 @@ import cafe.adriel.voyager.navigator.LocalNavigator
 import cafe.adriel.voyager.navigator.currentOrThrow
 import eu.kanade.domain.base.BasePreferences
 import eu.kanade.domain.extension.interactor.TrustExtension
+import eu.kanade.domain.sync.SyncPreferences
 import eu.kanade.presentation.more.settings.Preference
 import eu.kanade.presentation.more.settings.screen.advanced.ClearDatabaseScreen
 import eu.kanade.presentation.more.settings.screen.debug.DebugInfoScreen
@@ -124,6 +125,7 @@ object SettingsAdvancedScreen : SearchableSettings {
             getNetworkGroup(networkPreferences = networkPreferences),
             getLibraryGroup(),
             getExtensionsGroup(basePreferences = basePreferences),
+            getSyncGroup(),
         )
     }
 
@@ -384,4 +386,23 @@ object SettingsAdvancedScreen : SearchableSettings {
             ),
         )
     }
+
+    @Composable
+    private fun getSyncGroup(): Preference.PreferenceGroup {
+        val context = LocalContext.current
+        val syncPreferences = remember { Injekt.get<SyncPreferences>() }
+        return Preference.PreferenceGroup(
+            title = stringResource(MR.strings.label_sync),
+            preferenceItems = persistentListOf(
+                Preference.PreferenceItem.TextPreference(
+                    title = stringResource(MR.strings.pref_reset_sync_timestamp),
+                    subtitle = stringResource(MR.strings.pref_reset_sync_timestamp_subtitle),
+                    onClick = {
+                        syncPreferences.lastSyncTimestamp().set(0)
+                        context.toast(MR.strings.success_reset_sync_timestamp)
+                    },
+                ),
+            ),
+        )
+    }
 }

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

@@ -0,0 +1,142 @@
+package eu.kanade.presentation.more.settings.screen.data
+
+import android.content.Context
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.platform.LocalContext
+import cafe.adriel.voyager.core.model.StateScreenModel
+import cafe.adriel.voyager.core.model.rememberScreenModel
+import cafe.adriel.voyager.navigator.LocalNavigator
+import cafe.adriel.voyager.navigator.currentOrThrow
+import eu.kanade.domain.sync.SyncPreferences
+import eu.kanade.domain.sync.models.SyncSettings
+import eu.kanade.presentation.components.AppBar
+import eu.kanade.presentation.util.Screen
+import eu.kanade.tachiyomi.data.backup.create.BackupOptions
+import eu.kanade.tachiyomi.data.sync.SyncDataJob
+import eu.kanade.tachiyomi.util.system.toast
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.coroutines.flow.update
+import tachiyomi.i18n.MR
+import tachiyomi.presentation.core.components.LabeledCheckbox
+import tachiyomi.presentation.core.components.LazyColumnWithAction
+import tachiyomi.presentation.core.components.SectionCard
+import tachiyomi.presentation.core.components.material.Scaffold
+import tachiyomi.presentation.core.i18n.stringResource
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
+
+class SyncSettingsSelector : Screen() {
+    @Composable
+    override fun Content() {
+        val context = LocalContext.current
+        val navigator = LocalNavigator.currentOrThrow
+        val model = rememberScreenModel { SyncSettingsSelectorModel() }
+        val state by model.state.collectAsState()
+
+        Scaffold(
+            topBar = {
+                AppBar(
+                    title = stringResource(MR.strings.pref_choose_what_to_sync),
+                    navigateUp = navigator::pop,
+                    scrollBehavior = it,
+                )
+            },
+        ) { contentPadding ->
+            LazyColumnWithAction(
+                contentPadding = contentPadding,
+                actionLabel = stringResource(MR.strings.label_sync),
+                actionEnabled = state.options.anyEnabled(),
+                onClickAction = {
+                    if (!SyncDataJob.isAnyJobRunning(context)) {
+                        model.syncNow(context)
+                        navigator.pop()
+                    } else {
+                        context.toast(MR.strings.sync_in_progress)
+                    }
+                },
+            ) {
+                item {
+                    SectionCard(MR.strings.label_library) {
+                        Options(BackupOptions.libraryOptions, state, model)
+                    }
+                }
+
+                item {
+                    SectionCard(MR.strings.label_settings) {
+                        Options(BackupOptions.settingsOptions, state, model)
+                    }
+                }
+            }
+        }
+    }
+
+    @Composable
+    private fun Options(
+        options: ImmutableList<BackupOptions.Entry>,
+        state: SyncSettingsSelectorModel.State,
+        model: SyncSettingsSelectorModel,
+    ) {
+        options.forEach { option ->
+            LabeledCheckbox(
+                label = stringResource(option.label),
+                checked = option.getter(state.options),
+                onCheckedChange = {
+                    model.toggle(option.setter, it)
+                },
+                enabled = option.enabled(state.options),
+            )
+        }
+    }
+}
+
+private class SyncSettingsSelectorModel(
+    val syncPreferences: SyncPreferences = Injekt.get(),
+) : StateScreenModel<SyncSettingsSelectorModel.State>(
+    State(syncOptionsToBackupOptions(syncPreferences.getSyncSettings())),
+) {
+    fun toggle(setter: (BackupOptions, Boolean) -> BackupOptions, enabled: Boolean) {
+        mutableState.update {
+            val updatedOptions = setter(it.options, enabled)
+            syncPreferences.setSyncSettings(backupOptionsToSyncOptions(updatedOptions))
+            it.copy(options = updatedOptions)
+        }
+    }
+
+    fun syncNow(context: Context) {
+        SyncDataJob.startNow(context)
+    }
+
+    @Immutable
+    data class State(
+        val options: BackupOptions = BackupOptions(),
+    ) companion object {
+        private fun syncOptionsToBackupOptions(syncSettings: SyncSettings): BackupOptions {
+            return BackupOptions(
+                libraryEntries = syncSettings.libraryEntries,
+                categories = syncSettings.categories,
+                chapters = syncSettings.chapters,
+                tracking = syncSettings.tracking,
+                history = syncSettings.history,
+                appSettings = syncSettings.appSettings,
+                sourceSettings = syncSettings.sourceSettings,
+                privateSettings = syncSettings.privateSettings,
+            )
+        }
+
+        private fun backupOptionsToSyncOptions(backupOptions: BackupOptions): SyncSettings {
+            return SyncSettings(
+                libraryEntries = backupOptions.libraryEntries,
+                categories = backupOptions.categories,
+                chapters = backupOptions.chapters,
+                tracking = backupOptions.tracking,
+                history = backupOptions.history,
+                appSettings = backupOptions.appSettings,
+                sourceSettings = backupOptions.sourceSettings,
+                privateSettings = backupOptions.privateSettings,
+            )
+        }
+    }
+}

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

@@ -0,0 +1,101 @@
+package eu.kanade.presentation.more.settings.screen.data
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import cafe.adriel.voyager.core.model.StateScreenModel
+import cafe.adriel.voyager.core.model.rememberScreenModel
+import cafe.adriel.voyager.navigator.LocalNavigator
+import cafe.adriel.voyager.navigator.currentOrThrow
+import eu.kanade.domain.sync.SyncPreferences
+import eu.kanade.presentation.components.AppBar
+import eu.kanade.presentation.util.Screen
+import eu.kanade.tachiyomi.data.sync.models.SyncTriggerOptions
+import kotlinx.collections.immutable.ImmutableList
+import kotlinx.coroutines.flow.update
+import tachiyomi.i18n.MR
+import tachiyomi.presentation.core.components.LabeledCheckbox
+import tachiyomi.presentation.core.components.LazyColumnWithAction
+import tachiyomi.presentation.core.components.SectionCard
+import tachiyomi.presentation.core.components.material.Scaffold
+import tachiyomi.presentation.core.i18n.stringResource
+import uy.kohesive.injekt.Injekt
+import uy.kohesive.injekt.api.get
+
+class SyncTriggerOptionsScreen : Screen() {
+
+    @Composable
+    override fun Content() {
+        val navigator = LocalNavigator.currentOrThrow
+        val model = rememberScreenModel { SyncOptionsScreenModel() }
+        val state by model.state.collectAsState()
+
+        Scaffold(
+            topBar = {
+                AppBar(
+                    title = stringResource(MR.strings.pref_sync_options),
+                    navigateUp = navigator::pop,
+                    scrollBehavior = it,
+                )
+            },
+        ) { contentPadding ->
+            LazyColumnWithAction(
+                contentPadding = contentPadding,
+                actionLabel = stringResource(MR.strings.action_save),
+                actionEnabled = state.options.anyEnabled(),
+                onClickAction = {
+                    navigator.pop()
+                },
+            ) {
+                item {
+                    SectionCard(MR.strings.label_triggers) {
+                        Options(SyncTriggerOptions.mainOptions, state, model)
+                    }
+                }
+            }
+        }
+    }
+
+    @Composable
+    private fun Options(
+        options: ImmutableList<SyncTriggerOptions.Entry>,
+        state: SyncOptionsScreenModel.State,
+        model: SyncOptionsScreenModel,
+    ) {
+        options.forEach { option ->
+            LabeledCheckbox(
+                label = stringResource(option.label),
+                checked = option.getter(state.options),
+                onCheckedChange = {
+                    model.toggle(option.setter, it)
+                },
+                enabled = option.enabled(state.options),
+            )
+        }
+    }
+}
+
+private class SyncOptionsScreenModel(
+    val syncPreferences: SyncPreferences = Injekt.get(),
+) : StateScreenModel<SyncOptionsScreenModel.State>(
+    State(
+        syncPreferences.getSyncTriggerOptions(),
+    ),
+) {
+
+    fun toggle(setter: (SyncTriggerOptions, Boolean) -> SyncTriggerOptions, enabled: Boolean) {
+        mutableState.update {
+            val updatedTriggerOptions = setter(it.options, enabled)
+            syncPreferences.setSyncTriggerOptions(updatedTriggerOptions)
+            it.copy(
+                options = updatedTriggerOptions,
+            )
+        }
+    }
+
+    @Immutable
+    data class State(
+        val options: SyncTriggerOptions = SyncTriggerOptions(),
+    )
+}