All: Started moving sync glue logic to SyncTarget classes

CliClient/app/command-sync.js

@@ -16,7 +16,7 @@ class Command extends BaseCommand {
 
 	constructor() {
 		super();
-		this.syncTarget_ = null;
+		this.syncTargetId_ = null;
 		this.releaseLockFn_ = null;
 		this.oneDriveApiUtils_ = null;
 	}
@@ -62,6 +62,27 @@ class Command extends BaseCommand {
 		});
 	}
 
+	async doAuth(syncTargetId) {
+		const syncTarget = reg.syncTarget(this.syncTargetId_);
+		this.oneDriveApiUtils_ = new OneDriveApiNodeUtils(syncTarget.oneDriveApi());
+		const auth = await this.oneDriveApiUtils_.oauthDance({
+			log: (...s) => { return this.stdout(...s); }
+		});
+		this.oneDriveApiUtils_ = null;
+		return auth;
+	}
+
+	cancelAuth() {
+		if (this.oneDriveApiUtils_) {
+			this.oneDriveApiUtils_.cancelOAuthDance();
+			return;
+		}
+	}
+
+	doingAuth() {
+		return !!this.oneDriveApiUtils_;
+	}
+
 	async action(args) {
 		this.releaseLockFn_ = null;
 
@@ -91,25 +112,24 @@ class Command extends BaseCommand {
 		};
 
 		try {
-			this.syncTarget_ = Setting.value('sync.target');
-			if (args.options.target) this.syncTarget_ = args.options.target;
+			this.syncTargetId_ = Setting.value('sync.target');
+			if (args.options.target) this.syncTargetId_ = args.options.target;
 
-			if (this.syncTarget_ == Setting.SYNC_TARGET_ONEDRIVE && !reg.syncHasAuth(this.syncTarget_)) {
+			const syncTarget = reg.syncTarget(this.syncTargetId_);
+
+			if (syncTarget.isAuthenticated()) {
 				app().gui().showConsole();
 				app().gui().maximizeConsole();
-				this.oneDriveApiUtils_ = new OneDriveApiNodeUtils(reg.oneDriveApi());
-				const auth = await this.oneDriveApiUtils_.oauthDance({
-					log: (...s) => { return this.stdout(...s); }
-				});
-				this.oneDriveApiUtils_ = null;
-				Setting.setValue('sync.3.auth', auth ? JSON.stringify(auth) : null);
+
+				const auth = await this.doAuth(this.syncTargetId_);
+				Setting.setValue('sync.' + this.syncTargetId_ + '.auth', auth ? JSON.stringify(auth) : null);
 				if (!auth) {
 					this.stdout(_('Authentication was not completed (did not receive an authentication token).'));
 					return cleanUp();
 				}
 			}
 			
-			let sync = await reg.synchronizer(this.syncTarget_);
+			const sync = await syncTarget.synchronizer();
 
 			let options = {
 				onProgress: (report) => {
@@ -123,13 +143,13 @@ class Command extends BaseCommand {
 				randomFailures: args.options['random-failures'] === true,
 			};
 
-			this.stdout(_('Synchronisation target: %s (%s)', Setting.enumOptionLabel('sync.target', this.syncTarget_), this.syncTarget_));
+			this.stdout(_('Synchronisation target: %s (%s)', Setting.enumOptionLabel('sync.target', this.syncTargetId_), this.syncTargetId_));
 
 			if (!sync) throw new Error(_('Cannot initialize synchroniser.'));
 
 			this.stdout(_('Starting synchronisation...'));
 
-			const contextKey = 'sync.' + this.syncTarget_ + '.context';
+			const contextKey = 'sync.' + this.syncTargetId_ + '.context';
 			let context = Setting.value(contextKey);
 
 			context = context ? JSON.parse(context) : {};
@@ -156,26 +176,28 @@ class Command extends BaseCommand {
 	}
 
 	async cancel() {
-		if (this.oneDriveApiUtils_) {
-			this.oneDriveApiUtils_.cancelOAuthDance();
+		if (this.doingAuth()) {
+			this.cancelAuth();
 			return;
 		}
 
-		const target = this.syncTarget_ ? this.syncTarget_ : Setting.value('sync.target');
+		const syncTargetId = this.syncTargetId_ ? this.syncTargetId_ : Setting.value('sync.target');
 
 		cliUtils.redrawDone();
 
 		this.stdout(_('Cancelling... Please wait.'));
 
-		if (reg.syncHasAuth(target)) {
-			let sync = await reg.synchronizer(target);
+		const syncTarget = reg.syncTarget(syncTargetId);
+
+		if (syncTarget.isAuthenticated()) {
+			const sync = await syncTarget.synchronizer();
 			if (sync) await sync.cancel();
 		} else {
 			if (this.releaseLockFn_) this.releaseLockFn_();
 			this.releaseLockFn_ = null;
 		}
 
-		this.syncTarget_ = null;
+		this.syncTargetId_ = null;
 	}
 
 	cancellable() {

CliClient/locales/en_GB.po

@@ -568,12 +568,15 @@ msgstr ""
 msgid "Add or remove tags"
 msgstr ""
 
-msgid "Switch between note and to-do"
+msgid "Switch between note and to-do type"
 msgstr ""
 
 msgid "Delete"
 msgstr ""
 
+msgid "Delete notes?"
+msgstr ""
+
 msgid "No notes in here. Create one by clicking on \"New note\"."
 msgstr ""
 
@@ -628,6 +631,9 @@ msgstr ""
 msgid "Unknown flag: %s"
 msgstr ""
 
+msgid "OneDrive"
+msgstr ""
+
 #, javascript-format
 msgid "Unknown log level: %s"
 msgstr ""
@@ -641,11 +647,6 @@ msgid ""
 "synchronisation again may fix the problem."
 msgstr ""
 
-msgid ""
-"Please set the \"sync.2.path\" config value to the desired synchronisation "
-"destination."
-msgstr ""
-
 #, javascript-format
 msgid "Cannot access %s"
 msgstr ""
@@ -737,9 +738,6 @@ msgstr ""
 msgid "File system"
 msgstr ""
 
-msgid "OneDrive"
-msgstr ""
-
 msgid "Text editor"
 msgstr ""
 
@@ -784,10 +782,10 @@ msgstr ""
 msgid "%d hours"
 msgstr ""
 
-msgid "Show advanced options"
+msgid "Automatically update the application"
 msgstr ""
 
-msgid "Automatically update the application"
+msgid "Show advanced options"
 msgstr ""
 
 msgid "Sync status (synced items / total items)"
@@ -819,6 +817,9 @@ msgstr ""
 msgid "There are currently no notes. Create one by clicking on the (+) button."
 msgstr ""
 
+msgid "Delete these notes?"
+msgstr ""
+
 msgid "Log"
 msgstr ""
 
@@ -828,6 +829,13 @@ msgstr ""
 msgid "Export Debug Report"
 msgstr ""
 
+msgid "Move to notebook..."
+msgstr ""
+
+#, javascript-format
+msgid "Move %d notes to notebook \"%s\"?"
+msgstr ""
+
 msgid "Cancel synchronisation"
 msgstr ""
 

CliClient/locales/fr_FR.po

@@ -620,12 +620,17 @@ msgstr "Disposition"
 msgid "Add or remove tags"
 msgstr "Gérer les étiquettes"
 
-msgid "Switch between note and to-do"
+#, fuzzy
+msgid "Switch between note and to-do type"
 msgstr "Alterner entre note et tâche"
 
 msgid "Delete"
 msgstr "Supprimer"
 
+#, fuzzy
+msgid "Delete notes?"
+msgstr "Supprimer la note ?"
+
 msgid "No notes in here. Create one by clicking on \"New note\"."
 msgstr ""
 "Pas de notes ici. Créez-en une en pressant le bouton \"Nouvelle note\"."
@@ -681,6 +686,9 @@ msgstr "Utilisation : %s"
 msgid "Unknown flag: %s"
 msgstr "Paramètre inconnu : %s"
 
+msgid "OneDrive"
+msgstr "OneDrive"
+
 #, javascript-format
 msgid "Unknown log level: %s"
 msgstr "Paramètre inconnu : %s"
@@ -696,13 +704,6 @@ msgstr ""
 "Impossible de rafraîchir la connexion à OneDrive. Démarrez la "
 "synchronisation à nouveau pour corriger le problème."
 
-msgid ""
-"Please set the \"sync.2.path\" config value to the desired synchronisation "
-"destination."
-msgstr ""
-"Veuillez attribuer une valeur au paramètre de configuration \"sync.2.path\" "
-"pour indiquer le dossier où devra se faire la synchronisation."
-
 #, javascript-format
 msgid "Cannot access %s"
 msgstr "Impossible d'accéder à %s"
@@ -798,9 +799,6 @@ msgstr ""
 msgid "File system"
 msgstr "Système de fichier"
 
-msgid "OneDrive"
-msgstr "OneDrive"
-
 msgid "Text editor"
 msgstr "Éditeur de texte"
 
@@ -847,13 +845,13 @@ msgstr "%d heure"
 msgid "%d hours"
 msgstr "%d heures"
 
-msgid "Show advanced options"
-msgstr "Montrer les options avancées"
-
 #, fuzzy
 msgid "Automatically update the application"
 msgstr "Quitter le logiciel."
 
+msgid "Show advanced options"
+msgstr "Montrer les options avancées"
+
 msgid "Sync status (synced items / total items)"
 msgstr "Status de la synchronisation (objets synchro. / total)"
 
@@ -885,6 +883,10 @@ msgstr ""
 "Ce carnet ne contient aucune note. Créez-en une en appuyant sur le bouton "
 "(+)."
 
+#, fuzzy
+msgid "Delete these notes?"
+msgstr "Supprimer la note ?"
+
 msgid "Log"
 msgstr "Journal"
 
@@ -894,6 +896,14 @@ msgstr "État"
 msgid "Export Debug Report"
 msgstr "Exporter rapport de débogage"
 
+#, fuzzy
+msgid "Move to notebook..."
+msgstr "Déplacer la note vers un carnet."
+
+#, fuzzy, javascript-format
+msgid "Move %d notes to notebook \"%s\"?"
+msgstr "Déplacer la note vers un carnet."
+
 msgid "Cancel synchronisation"
 msgstr "Annuler synchronisation"
 
@@ -962,6 +972,13 @@ msgstr ""
 msgid "Welcome"
 msgstr "Bienvenue"
 
+#~ msgid ""
+#~ "Please set the \"sync.2.path\" config value to the desired "
+#~ "synchronisation destination."
+#~ msgstr ""
+#~ "Veuillez attribuer une valeur au paramètre de configuration \"sync.2.path"
+#~ "\" pour indiquer le dossier où devra se faire la synchronisation."
+
 #~ msgid "Seach:"
 #~ msgstr "Chercher :"
 

CliClient/locales/joplin.pot

@@ -568,12 +568,15 @@ msgstr ""
 msgid "Add or remove tags"
 msgstr ""
 
-msgid "Switch between note and to-do"
+msgid "Switch between note and to-do type"
 msgstr ""
 
 msgid "Delete"
 msgstr ""
 
+msgid "Delete notes?"
+msgstr ""
+
 msgid "No notes in here. Create one by clicking on \"New note\"."
 msgstr ""
 
@@ -628,6 +631,9 @@ msgstr ""
 msgid "Unknown flag: %s"
 msgstr ""
 
+msgid "OneDrive"
+msgstr ""
+
 #, javascript-format
 msgid "Unknown log level: %s"
 msgstr ""
@@ -641,11 +647,6 @@ msgid ""
 "synchronisation again may fix the problem."
 msgstr ""
 
-msgid ""
-"Please set the \"sync.2.path\" config value to the desired synchronisation "
-"destination."
-msgstr ""
-
 #, javascript-format
 msgid "Cannot access %s"
 msgstr ""
@@ -737,9 +738,6 @@ msgstr ""
 msgid "File system"
 msgstr ""
 
-msgid "OneDrive"
-msgstr ""
-
 msgid "Text editor"
 msgstr ""
 
@@ -784,10 +782,10 @@ msgstr ""
 msgid "%d hours"
 msgstr ""
 
-msgid "Show advanced options"
+msgid "Automatically update the application"
 msgstr ""
 
-msgid "Automatically update the application"
+msgid "Show advanced options"
 msgstr ""
 
 msgid "Sync status (synced items / total items)"
@@ -819,6 +817,9 @@ msgstr ""
 msgid "There are currently no notes. Create one by clicking on the (+) button."
 msgstr ""
 
+msgid "Delete these notes?"
+msgstr ""
+
 msgid "Log"
 msgstr ""
 
@@ -828,6 +829,13 @@ msgstr ""
 msgid "Export Debug Report"
 msgstr ""
 
+msgid "Move to notebook..."
+msgstr ""
+
+#, javascript-format
+msgid "Move %d notes to notebook \"%s\"?"
+msgstr ""
+
 msgid "Cancel synchronisation"
 msgstr ""
 

CliClient/tests/test-utils.js

@@ -30,8 +30,6 @@ const logDir = __dirname + '/../tests/logs';
 fs.mkdirpSync(logDir, 0o755);
 
 const syncTargetId_ = Setting.SYNC_TARGET_MEMORY;
-//const syncTargetId_ = Setting.SYNC_TARGET_FILESYSTEM;
-//const syncTargetId_ = Setting.SYNC_TARGET_ONEDRIVE;
 const syncDir = __dirname + '/../tests/sync';
 
 const sleepTime = syncTargetId_ == Setting.SYNC_TARGET_FILESYSTEM ? 1001 : 400;

ReactNativeClient/lib/BaseApplication.js

@@ -14,6 +14,7 @@ const { Logger } = require('lib/logger.js');
 const { splitCommandString } = require('lib/string-utils.js');
 const { sprintf } = require('sprintf-js');
 const { reg } = require('lib/registry.js');
+const BaseSyncTarget = require('lib/BaseSyncTarget.js');
 const { fileExtension } = require('lib/path-utils.js');
 const { shim } = require('lib/shim.js');
 const { _, setLocale, defaultLocale, closestSupportedLocale } = require('lib/locale.js');
@@ -276,6 +277,7 @@ class BaseApplication {
 		BaseModel.dispatch = this.store().dispatch;
 		FoldersScreenUtils.dispatch = this.store().dispatch;
 		reg.dispatch = this.store().dispatch;
+		BaseSyncTarget.dispatch = this.store().dispatch;
 	}
 
 	async readFlagsFromFile(flagPath) {

ReactNativeClient/lib/BaseSyncTarget.js

@@ -0,0 +1,82 @@
+const { reg } = require('lib/registry.js');
+
+class BaseSyncTarget {
+
+	constructor(db) {
+		this.db_ = db;
+		this.synchronizer_ = null;
+		this.initState_ = null;
+		this.logger_ = null;
+	}
+
+	logger() {
+		return this.logger_;
+	}
+
+	setLogger(v) {
+		this.logger_ = v;
+	}
+
+	db() {
+		return this.db_;
+	}
+
+	isAuthenticated() {
+		return false;
+	}
+
+	name() {
+		throw new Error('Not implemented');
+	}
+
+	label() {
+		throw new Error('Not implemented');
+	}
+
+	async initSynchronizer() {
+		throw new Error('Not implemented');
+	}
+
+	async synchronizer() {
+		if (this.synchronizer_) return this.synchronizer_;
+
+		if (this.initState_ == 'started') {
+			// Synchronizer is already being initialized, so wait here till it's done.
+			return new Promise((resolve, reject) => {
+				const iid = setInterval(() => {
+					if (this.initState_ == 'ready') {
+						clearInterval(iid);
+						resolve(this.synchronizer_);
+					}
+					if (this.initState_ == 'error') {
+						clearInterval(iid);
+						reject(new Error('Could not initialise synchroniser'));
+					}
+				}, 1000);
+			});
+		} else {
+			this.initState_ = 'started';
+
+			try {
+				this.synchronizer_ = await this.initSynchronizer();
+				this.synchronizer_.setLogger(this.logger());
+				this.synchronizer_.dispatch = BaseSyncTarget.dispatch;
+				this.initState_ = 'ready';
+				return this.synchronizer_;
+			} catch (error) {
+				this.initState_ = 'error';
+				throw error;
+			}
+		}
+	}
+
+	async syncStarted() {
+		if (!this.synchronizer_) return false;
+		if (!this.isAuthenticated()) return false;
+		const sync = await this.synchronizer();
+		return sync.state() != 'idle';
+	}
+
+}
+
+module.exports = BaseSyncTarget;

ReactNativeClient/lib/SyncTarget1.js

@@ -0,0 +1,23 @@
+const BaseSyncTarget = require('lib/BaseSyncTarget.js');
+
+class SyncTarget1 extends BaseSyncTarget {
+
+	id() {
+		return 1;
+	}
+
+	name() {
+		return 'Memory';
+	}
+
+	label() {
+		return 'Memory';
+	}
+
+	isAuthenticated() {
+		return true;
+	}
+
+}
+
+module.exports = SyncTarget1;

ReactNativeClient/lib/SyncTarget3.js

@@ -0,0 +1,80 @@
+const BaseSyncTarget = require('lib/BaseSyncTarget.js');
+const { _ } = require('lib/locale.js');
+const { OneDriveApi } = require('lib/onedrive-api.js');
+const { Setting } = require('lib/models/setting.js');
+const { parameters } = require('lib/parameters.js');
+const { FileApi } = require('lib/file-api.js');
+const { Synchronizer } = require('lib/synchronizer.js');
+const { FileApiDriverOneDrive } = require('lib/file-api-driver-onedrive.js');
+
+class SyncTarget3 extends BaseSyncTarget {
+
+	constructor(db) {
+		super();
+		this.oneDriveApi_ = null;
+	}
+
+	id() {
+		return 3;
+	}
+
+	name() {
+		return 'OneDrive';
+	}
+
+	label() {
+		return _('OneDrive');
+	}
+
+	isAuthenticated() {
+		return this.oneDriveApi_ && this.oneDriveApi_.auth();
+	}
+
+	oneDriveApi() {
+		if (this.oneDriveApi_) return this.oneDriveApi_;
+
+		const isPublic = Setting.value('appType') != 'cli';
+
+		this.oneDriveApi_ = new OneDriveApi(parameters().oneDrive.id, parameters().oneDrive.secret, isPublic);
+		this.oneDriveApi_.setLogger(this.logger());
+
+		this.oneDriveApi_.on('authRefreshed', (a) => {
+			this.logger().info('Saving updated OneDrive auth.');
+			Setting.setValue('sync.' + this.id() + '.auth', a ? JSON.stringify(a) : null);
+		});
+
+		let auth = Setting.value('sync.' + this.id() + '.auth');
+		if (auth) {
+			try {
+				auth = JSON.parse(auth);
+			} catch (error) {
+				this.logger().warn('Could not parse OneDrive auth token');
+				this.logger().warn(error);
+				auth = null;
+			}
+
+			this.oneDriveApi_.setAuth(auth);
+		}
+		
+		return this.oneDriveApi_;
+	}
+
+	async initSynchronizer() {
+		let fileApi = null;
+
+		if (!this.oneDriveApi().auth()) throw new Error('User is not authentified');
+		const appDir = await this.oneDriveApi().appDirectory();
+		fileApi = new FileApi(appDir, new FileApiDriverOneDrive(this.oneDriveApi()));
+		fileApi.setSyncTargetId(this.id());
+		fileApi.setLogger(this.logger());
+
+		return new Synchronizer(this.db(), fileApi, Setting.value('appType'));
+	}
+
+	isAuthenticated() {
+		return true;
+	}
+
+}
+
+module.exports = SyncTarget3;

ReactNativeClient/lib/models/setting.js

@@ -72,16 +72,19 @@ class Setting extends BaseModel {
 		});
 	}
 
-	static dispatchUpdateAll() {
+	static toPlainObject() {
 		const keys = this.keys();
 		let keyToValues = {};
 		for (let i = 0; i < keys.length; i++) {
 			keyToValues[keys[i]] = this.value(keys[i]);
 		}
+		return keyToValues;
+	}
 
+	static dispatchUpdateAll() {
 		this.dispatch({
 			type: 'SETTING_UPDATE_ALL',
-			settings: keyToValues,
+			settings: this.toPlainObject(),
 		});
 	}
 
@@ -326,6 +329,7 @@ class Setting extends BaseModel {
 Setting.SYNC_TARGET_MEMORY = 1;
 Setting.SYNC_TARGET_FILESYSTEM = 2;
 Setting.SYNC_TARGET_ONEDRIVE = 3;
+//Setting.SYNC_TARGET_ONEDRIVE_DEV = 4;
 
 Setting.TYPE_INT = 1;
 Setting.TYPE_STRING = 2;
@@ -341,11 +345,13 @@ Setting.metadata_ = {
 	'firstStart': { value: true, type: Setting.TYPE_BOOL, public: false },
 	'sync.2.path': { value: '', type: Setting.TYPE_STRING, public: true, appTypes: ['cli'], label: () => _('File system synchronisation target directory'), description: () => _('The path to synchronise with when file system synchronisation is enabled. See `sync.target`.') },
 	'sync.3.auth': { value: '', type: Setting.TYPE_STRING, public: false },
+	'sync.4.auth': { value: '', type: Setting.TYPE_STRING, public: false },
 	'sync.target': { value: Setting.SYNC_TARGET_ONEDRIVE, type: Setting.TYPE_INT, isEnum: true, public: true, label: () => _('Synchronisation target'), description: () => _('The target to synchonise to. If synchronising with the file system, set `sync.2.path` to specify the target directory.'), options: () => {
 		let output = {};
 		output[Setting.SYNC_TARGET_MEMORY] = 'Memory';
 		output[Setting.SYNC_TARGET_FILESYSTEM] = _('File system');
 		output[Setting.SYNC_TARGET_ONEDRIVE] = _('OneDrive');
+		//output[Setting.SYNC_TARGET_ONEDRIVE_DEV] = _('OneDrive (Testing Only)');
 		return output;
 	}},
 	'sync.1.context': { value: '', type: Setting.TYPE_STRING, public: false },

ReactNativeClient/lib/registry.js

@@ -1,10 +1,11 @@
 const { Logger } = require('lib/logger.js');
 const { Setting } = require('lib/models/setting.js');
-const { OneDriveApi } = require('lib/onedrive-api.js');
 const { parameters } = require('lib/parameters.js');
 const { FileApi } = require('lib/file-api.js');
 const { Database } = require('lib/database.js');
 const { Synchronizer } = require('lib/synchronizer.js');
+const SyncTarget1 = require('lib/SyncTarget1.js');
+const SyncTarget3 = require('lib/SyncTarget3.js');
 const { FileApiDriverOneDrive } = require('lib/file-api-driver-onedrive.js');
 const { shim } = require('lib/shim.js');
 const { time } = require('lib/time-utils.js');
@@ -14,6 +15,12 @@ const { _ } = require('lib/locale.js');
 const reg = {};
 
 reg.initSynchronizerStates_ = {};
+reg.syncTargetClasses_ = {
+	1: SyncTarget1,
+	// 2: SyncTarget2,
+	3: SyncTarget3,
+};
+reg.syncTargets_ = {};
 reg.synchronizers_ = {};
 
 reg.logger = () => {
@@ -29,71 +36,17 @@ reg.setLogger = (l) => {
 	reg.logger_ = l;
 }
 
-reg.oneDriveApi = () => {
-	if (reg.oneDriveApi_) return reg.oneDriveApi_;
+reg.syncTarget = (syncTargetId = null) => {
+	if (syncTargetId === null) syncTargetId = Setting.value('sync.target');
+	if (reg.syncTargets_[syncTargetId]) return reg.syncTargets_[syncTargetId];
 
-	const isPublic = Setting.value('appType') != 'cli';
+	const SyncTargetClass = reg.syncTargetClasses_[syncTargetId];
+	if (!reg.db()) throw new Error('Cannot initialize sync without a db');
 
-	reg.oneDriveApi_ = new OneDriveApi(parameters().oneDrive.id, parameters().oneDrive.secret, isPublic);
-	reg.oneDriveApi_.setLogger(reg.logger());
-
-	reg.oneDriveApi_.on('authRefreshed', (a) => {
-		reg.logger().info('Saving updated OneDrive auth.');
-		Setting.setValue('sync.3.auth', a ? JSON.stringify(a) : null);
-	});
-
-	let auth = Setting.value('sync.3.auth');
-	if (auth) {
-		try {
-			auth = JSON.parse(auth);
-		} catch (error) {
-			reg.logger().warn('Could not parse OneDrive auth token');
-			reg.logger().warn(error);
-			auth = null;
-		}
-
-		reg.oneDriveApi_.setAuth(auth);
-	}
-	
-	return reg.oneDriveApi_;
-}
-
-reg.initSynchronizer_ = async (syncTargetId) => {
-	if (!reg.db()) throw new Error('Cannot initialize synchronizer: db not initialized');
-
-	let fileApi = null;
-
-	if (syncTargetId == Setting.SYNC_TARGET_ONEDRIVE) {
-
-		if (!reg.oneDriveApi().auth()) throw new Error('User is not authentified');
-		let appDir = await reg.oneDriveApi().appDirectory();
-		fileApi = new FileApi(appDir, new FileApiDriverOneDrive(reg.oneDriveApi()));
-
-	} else if (syncTargetId == Setting.SYNC_TARGET_MEMORY) {
-
-		fileApi = new FileApi('joplin', new FileApiDriverMemory());
-
-	} else if (syncTargetId == Setting.SYNC_TARGET_FILESYSTEM) {
-
-		let syncDir = Setting.value('sync.2.path');
-		if (!syncDir) throw new Error(_('Please set the "sync.2.path" config value to the desired synchronisation destination.'));
-		await shim.fs.mkdirp(syncDir, 0o755);
-		fileApi = new FileApi(syncDir, new shim.FileApiDriverLocal());
-
-	} else {
-
-		throw new Error('Unknown sync target: ' + syncTargetId);
-
-	}
-
-	fileApi.setSyncTargetId(syncTargetId);
-	fileApi.setLogger(reg.logger());
-
-	let sync = new Synchronizer(reg.db(), fileApi, Setting.value('appType'));
-	sync.setLogger(reg.logger());
-	sync.dispatch = reg.dispatch;
-
-	return sync;
+	const target = new SyncTargetClass(reg.db());
+	target.setLogger(reg.logger());
+	reg.syncTargets_[syncTargetId] = target;
+	return target;
 }
 
 reg.synchronizer = async (syncTargetId) => {
@@ -130,11 +83,7 @@ reg.synchronizer = async (syncTargetId) => {
 }
 
 reg.syncHasAuth = (syncTargetId) => {
-	if (syncTargetId == Setting.SYNC_TARGET_ONEDRIVE && !reg.oneDriveApi().auth()) {
-		return false;
-	}
-
-	return true;
+	return reg.syncTargets(syncTargetId).isAuthenticated();
 }
 
 reg.scheduleSync = async (delay = null) => {
@@ -164,7 +113,7 @@ reg.scheduleSync = async (delay = null) => {
 		}
 
 		try {
-			const sync = await reg.synchronizer(syncTargetId);
+			const sync = await reg.syncTarget(syncTargetId).synchronizer();
 
 			const contextKey = 'sync.' + syncTargetId + '.context';
 			let context = Setting.value(contextKey);
@@ -195,11 +144,7 @@ reg.scheduleSync = async (delay = null) => {
 }
 
 reg.syncStarted = async () => {
-	const syncTarget = Setting.value('sync.target');
-	if (!reg.synchronizers_[syncTarget]) return false;
-	if (!reg.syncHasAuth(syncTarget)) return false;
-	const sync = await reg.synchronizer(syncTarget);
-	return sync.state() != 'idle';
+	return reg.syncTarget().syncStarted();
 }
 
 reg.setupRecurrentSync = () => {