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joplin/packages/lib/registry.ts

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import Logger from './Logger';
import Setting from './models/Setting';
import shim from './shim';
const SyncTargetRegistry = require('./SyncTargetRegistry.js');
class Registry {
private syncTargets_: any = {};
private logger_: Logger = null;
private schedSyncCalls_: boolean[] = [];
private waitForReSyncCalls_: boolean[]= [];
private setupRecurrentCalls_: boolean[] = [];
private timerCallbackCalls_: boolean[] = [];
private showErrorMessageBoxHandler_: any;
private scheduleSyncId_: any;
private recurrentSyncId_: any;
private db_: any;
private isOnMobileData_ = false;
logger() {
if (!this.logger_) {
// console.warn('Calling logger before it is initialized');
return new Logger();
}
return this.logger_;
}
setLogger(l: Logger) {
this.logger_ = l;
}
setShowErrorMessageBoxHandler(v: any) {
this.showErrorMessageBoxHandler_ = v;
}
showErrorMessageBox(message: string) {
if (!this.showErrorMessageBoxHandler_) return;
this.showErrorMessageBoxHandler_(message);
}
// If isOnMobileData is true, the doWifiConnectionCheck is not set
// and the sync.mobileWifiOnly setting is true it will cancel the sync.
setIsOnMobileData(isOnMobileData: boolean) {
this.isOnMobileData_ = isOnMobileData;
}
resetSyncTarget(syncTargetId: number = null) {
if (syncTargetId === null) syncTargetId = Setting.value('sync.target');
delete this.syncTargets_[syncTargetId];
}
syncTargetNextcloud() {
return this.syncTarget(SyncTargetRegistry.nameToId('nextcloud'));
}
syncTarget = (syncTargetId: number = null) => {
if (syncTargetId === null) syncTargetId = Setting.value('sync.target');
if (this.syncTargets_[syncTargetId]) return this.syncTargets_[syncTargetId];
const SyncTargetClass = SyncTargetRegistry.classById(syncTargetId);
if (!this.db()) throw new Error('Cannot initialize sync without a db');
const target = new SyncTargetClass(this.db());
target.setLogger(this.logger());
this.syncTargets_[syncTargetId] = target;
return target;
};
// This can be used when some data has been modified and we want to make
// sure it gets synced. So we wait for the current sync operation to
// finish (if one is running), then we trigger a sync just after.
waitForSyncFinishedThenSync = async () => {
this.waitForReSyncCalls_.push(true);
try {
const synchronizer = await this.syncTarget().synchronizer();
await synchronizer.waitForSyncToFinish();
await this.scheduleSync(0);
} finally {
this.waitForReSyncCalls_.pop();
}
};
scheduleSync = async (delay: number = null, syncOptions: any = null, doWifiConnectionCheck: boolean = false) => {
this.schedSyncCalls_.push(true);
try {
if (delay === null) delay = 1000 * 10;
if (syncOptions === null) syncOptions = {};
let promiseResolve: Function = null;
const promise = new Promise((resolve) => {
promiseResolve = resolve;
});
if (this.scheduleSyncId_) {
shim.clearTimeout(this.scheduleSyncId_);
this.scheduleSyncId_ = null;
}
if (Setting.value('env') === 'dev' && delay !== 0) {
// this.logger().info('Schedule sync DISABLED!!!');
// return;
}
this.logger().debug('Scheduling sync operation...', delay);
const timeoutCallback = async () => {
this.timerCallbackCalls_.push(true);
try {
this.scheduleSyncId_ = null;
this.logger().info('Preparing scheduled sync');
if (doWifiConnectionCheck && Setting.value('sync.mobileWifiOnly') && this.isOnMobileData_) {
this.logger().info('Sync cancelled because we\'re on mobile data');
promiseResolve();
return;
}
const syncTargetId = Setting.value('sync.target');
if (!(await this.syncTarget(syncTargetId).isAuthenticated())) {
this.logger().info('Synchroniser is missing credentials - manual sync required to authenticate.');
promiseResolve();
return;
}
try {
const sync = await this.syncTarget(syncTargetId).synchronizer();
const contextKey = `sync.${syncTargetId}.context`;
let context = Setting.value(contextKey);
try {
context = context ? JSON.parse(context) : {};
} catch (error) {
// Clearing the context is inefficient since it means all items are going to be re-downloaded
// however it won't result in duplicate items since the synchroniser is going to compare each
// item to the current state.
this.logger().warn(`Could not parse JSON sync context ${contextKey}:`, context);
this.logger().info('Clearing context and starting from scratch');
context = null;
}
try {
this.logger().info('Starting scheduled sync');
const options = Object.assign({}, syncOptions, { context: context });
if (!options.saveContextHandler) {
options.saveContextHandler = (newContext: any) => {
Setting.setValue(contextKey, JSON.stringify(newContext));
};
}
const newContext = await sync.start(options);
Setting.setValue(contextKey, JSON.stringify(newContext));
} catch (error) {
if (error.code == 'alreadyStarted') {
this.logger().info(error.message);
} else {
promiseResolve();
throw error;
}
}
} catch (error) {
this.logger().info('Could not run background sync:');
this.logger().info(error);
}
this.setupRecurrentSync();
promiseResolve();
} finally {
this.timerCallbackCalls_.pop();
}
};
if (delay === 0) {
void timeoutCallback();
} else {
this.scheduleSyncId_ = shim.setTimeout(timeoutCallback, delay);
}
return promise;
} finally {
this.schedSyncCalls_.pop();
}
};
setupRecurrentSync() {
this.setupRecurrentCalls_.push(true);
try {
if (this.recurrentSyncId_) {
shim.clearInterval(this.recurrentSyncId_);
this.recurrentSyncId_ = null;
}
if (!Setting.value('sync.interval')) {
this.logger().debug('Recurrent sync is disabled');
} else {
this.logger().debug(`Setting up recurrent sync with interval ${Setting.value('sync.interval')}`);
if (Setting.value('env') === 'dev') {
this.logger().info('Recurrent sync operation DISABLED!!!');
return;
}
this.recurrentSyncId_ = shim.setInterval(() => {
this.logger().info('Running background sync on timer...');
void this.scheduleSync(0, null, true);
}, 1000 * Setting.value('sync.interval'));
}
} finally {
this.setupRecurrentCalls_.pop();
}
}
setDb = (v: any) => {
this.db_ = v;
};
db() {
return this.db_;
}
cancelTimers_() {
if (this.recurrentSyncId_) {
shim.clearInterval(this.recurrentSyncId_);
this.recurrentSyncId_ = null;
}
if (this.scheduleSyncId_) {
shim.clearTimeout(this.scheduleSyncId_);
this.scheduleSyncId_ = null;
}
}
cancelTimers = async () => {
this.logger().info('Cancelling sync timers');
this.cancelTimers_();
return new Promise((resolve) => {
shim.setInterval(() => {
// ensure processing complete
if (!this.setupRecurrentCalls_.length && !this.schedSyncCalls_.length && !this.timerCallbackCalls_.length && !this.waitForReSyncCalls_.length) {
this.cancelTimers_();
resolve(null);
}
}, 100);
});
};
}
const reg = new Registry();
// eslint-disable-next-line import/prefer-default-export
export { reg };