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joplin/ReactNativeClient/lib/BaseSyncTarget.js
Laurent Cozic 55c5ddedf4 Revert "Applied prettier to code base"
This reverts commit c4f19465a6.
2018-03-09 20:59:12 +00:00

121 lines
2.7 KiB
JavaScript

const EncryptionService = require('lib/services/EncryptionService.js');
class BaseSyncTarget {
constructor(db, options = null) {
this.db_ = db;
this.synchronizer_ = null;
this.initState_ = null;
this.logger_ = null;
this.options_ = options;
}
static supportsConfigCheck() {
return false;
}
option(name, defaultValue = null) {
return this.options_ && (name in this.options_) ? this.options_[name] : defaultValue;
}
logger() {
return this.logger_;
}
setLogger(v) {
this.logger_ = v;
}
db() {
return this.db_;
}
isAuthenticated() {
return false;
}
authRouteName() {
return null;
}
static id() {
throw new Error('id() not implemented');
}
// Note: it cannot be called just "name()" because that's a reserved keyword and
// it would throw an obscure error in React Native.
static targetName() {
throw new Error('targetName() not implemented');
}
static label() {
throw new Error('label() not implemented');
}
async initSynchronizer() {
throw new Error('initSynchronizer() not implemented');
}
async initFileApi() {
throw new Error('initFileApi() not implemented');
}
async fileApi() {
if (this.fileApi_) return this.fileApi_;
this.fileApi_ = await this.initFileApi();
return this.fileApi_;
}
// Usually each sync target should create and setup its own file API via initFileApi()
// but for testing purposes it might be convenient to provide it here so that multiple
// clients can share and sync to the same file api (see test-utils.js)
setFileApi(v) {
this.fileApi_ = v;
}
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_.setEncryptionService(EncryptionService.instance());
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';
}
}
BaseSyncTarget.dispatch = (action) => {};
module.exports = BaseSyncTarget;