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/**
* @license
* Copyright (C) 2017-2018 "IoT.bzh"
* Author Sebastien Douheret <sebastien@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { Injectable } from '@angular/core';
import { CookieService } from 'ngx-cookie';
import { NbThemeService } from '@nebular/theme';
import { Observable } from 'rxjs/Observable';
import { BehaviorSubject } from 'rxjs/BehaviorSubject';
export interface IConfig {
language: string;
theme: string;
}
@Injectable()
export class ConfigService {
public Conf$: Observable<IConfig>;
private confSubject: BehaviorSubject<IConfig>;
private confStore: IConfig;
constructor(
private cookie: CookieService,
private themeService: NbThemeService,
) {
this.confSubject = <BehaviorSubject<IConfig>>new BehaviorSubject(this.confStore);
this.Conf$ = this.confSubject.asObservable();
// Load initial config and apply it
this.load();
this.themeService.changeTheme(this.confStore.theme);
// Save selected theme in cookie
this.themeService.onThemeChange().subscribe(tm => {
if (tm.name !== this.confStore.theme) {
this.confStore.theme = tm.name;
this.save();
}
});
}
// Load config
load() {
// Try to retrieve previous config from cookie
const cookConf = this.cookie.getObject('xds-config');
if (cookConf != null) {
this.confStore = <IConfig>cookConf;
} else {
// Set default config
this.confStore = {
language: 'ENG',
theme: 'default',
};
}
}
// Save config into cookie
save() {
// Notify subscribers
this.confSubject.next(Object.assign({}, this.confStore));
this.cookie.putObject('xds-config', this.confStore);
}
}
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