const BaseSyncTarget = require('lib/BaseSyncTarget.js');
const { _ } = require('lib/locale.js');
const DropboxApi = require('lib/DropboxApi');
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 { FileApiDriverDropbox } = require('lib/file-api-driver-dropbox.js');

class SyncTargetDropbox extends BaseSyncTarget {
	static id() {
		return 7;
	}

	constructor(db, options = null) {
		super(db, options);
		this.api_ = null;
	}

	static targetName() {
		return 'dropbox';
	}

	static label() {
		return _('Dropbox');
	}

	authRouteName() {
		return 'DropboxLogin';
	}

	async isAuthenticated() {
		const f = await this.fileApi();
		return !!f
			.driver()
			.api()
			.authToken();
	}

	async api() {
		const fileApi = await this.fileApi();
		return fileApi.driver().api();
	}

	async initFileApi() {
		const params = parameters().dropbox;

		const api = new DropboxApi({
			id: params.id,
			secret: params.secret,
		});

		api.on('authRefreshed', auth => {
			this.logger().info('Saving updated Dropbox auth.');
			Setting.setValue(`sync.${SyncTargetDropbox.id()}.auth`, auth ? auth : null);
		});

		const authToken = Setting.value(`sync.${SyncTargetDropbox.id()}.auth`);
		api.setAuthToken(authToken);

		const appDir = '';
		const fileApi = new FileApi(appDir, new FileApiDriverDropbox(api));
		fileApi.setSyncTargetId(SyncTargetDropbox.id());
		fileApi.setLogger(this.logger());
		return fileApi;
	}

	async initSynchronizer() {
		if (!(await this.isAuthenticated())) throw new Error('User is not authentified');
		return new Synchronizer(this.db(), await this.fileApi(), Setting.value('appType'));
	}
}

module.exports = SyncTargetDropbox;