mirror of
https://gitlab.com/openstapps/openstapps.git
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101 lines
3.6 KiB
TypeScript
101 lines
3.6 KiB
TypeScript
/*
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* Copyright (C) 2020-2021 StApps
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation, version 3.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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import {Injectable, OnDestroy} from '@angular/core';
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import {LangChangeEvent, TranslateService} from '@ngx-translate/core';
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import {SCLanguage, SCThings, SCThingTranslator, SCThingType, SCTranslations} from '@openstapps/core';
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import {Subscription} from 'rxjs';
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import {isDefined, ThingTranslateParser} from './thing-translate.parser';
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// export const DEFAULT_LANGUAGE = new InjectionToken<string>('DEFAULT_LANGUAGE');
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// tslint:disable: member-ordering prefer-function-over-method newline-per-chained-call completed-docs
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@Injectable({
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providedIn: 'root',
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})
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export class ThingTranslateService implements OnDestroy {
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onLangChange: Subscription;
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translator: SCThingTranslator;
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/**
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*
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* @param translateService Instance of Angular TranslateService
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* @param parser An instance of the parser currently used
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* @param language TODO
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*/
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constructor(private readonly translateService: TranslateService,
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public parser: ThingTranslateParser){
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this.translator = new SCThingTranslator('de' ?? this.translateService.currentLang as keyof SCTranslations<SCLanguage>);
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/** set the default language from configuration */
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this.onLangChange = this.translateService.onLangChange.subscribe((event: LangChangeEvent) => {
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this.translator.language = event.lang as keyof SCTranslations<SCLanguage>;
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});
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}
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/**
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* Returns the parsed result of the translations
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*/
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// tslint:disable-next-line: no-any
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getParsedResult(target: object, key: string): any {
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return this.parser.getValueFromKeyPath(target, key);
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}
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/**
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* Gets the translated value of a key (or an array of keys)
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* @returns the translated key, or an object of translated keys
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*/
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public get(thing: SCThings, keyPath: string | string[]): string | number | boolean | object {
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if (!isDefined(keyPath) || keyPath.length === 0) {
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throw new Error(`Parameter "keyPath" required`);
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}
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if (keyPath instanceof Array) {
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return this.getParsedResult(this.translator.translate(thing), keyPath.join('.'));
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}
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return this.getParsedResult(this.translator.translate(thing), keyPath);
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}
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/**
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* Gets the translated value of a key (or an array of keys)
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* @returns the translated key, or an object of translated keys
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*/
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public getPropertyName(type: SCThingType, keyPath: string | string[]): string {
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const translatedPropertyNames = this.translator.translatedPropertyNames(type);
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if (!isDefined(translatedPropertyNames)) {
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throw new Error(`Parameter "type" is an invalid SCThingType`);
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}
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if (!isDefined(keyPath) || keyPath.length === 0) {
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throw new Error(`Parameter "keyPath" required`);
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}
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if (keyPath instanceof Array) {
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return this.getParsedResult(translatedPropertyNames!, keyPath.join('.'));
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}
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return this.getParsedResult(translatedPropertyNames!, keyPath);
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}
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// tslint:disable-next-line: completed-docs
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ngOnDestroy() {
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if (!this.onLangChange.closed) {
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this.onLangChange.unsubscribe();
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}
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}
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}
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