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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | 1x 1x 1x 1x 1x 2x 1x 5x 1x 2x 1x 1x 17x 15x 2x 2x 8x 8x 8x 8x 4x 4x 4x 4x 4x 8x 4x 4x 4x 4x | import { ImplementsStatic } from 'src/classes/decorators/ImplementsStatic';
import type { ILogger, ILogger_ } from 'src/interfaces/ILogger';
import { Translations } from 'src/translations/Translations';
import type { IPrjSettings } from 'src/types/PrjSettings';
import ILanguageTranslations from './interfaces/ILanguageTranslations';
import ITranslationService, {
ITranslationService_,
} from './interfaces/ITranslationService';
import { Inject } from '../DependencyInjection/decorators/Inject';
import { RegisterInstance } from '../DependencyInjection/decorators/RegisterInstance';
/**
* A service that provides translations for the application.
*/
@ImplementsStatic<ITranslationService_>()
@RegisterInstance('ITranslationService', (x) => new x(Translations))
export class TranslationService implements ITranslationService {
static instance: TranslationService | undefined;
@Inject('IPrjSettings', (x: IPrjSettings) => x.language)
private readonly _language!: IPrjSettings['language'];
@Inject(
'ILogger_',
(x: ILogger_) => x.getLogger('TranslationService'),
false,
)
private readonly _logger?: ILogger;
private readonly _translations: ILanguageTranslations[];
/**
* Gets the singleton instance of the translation service.
* @returns The instance of the TranslationService.
*/
static getInstance(): TranslationService {
if (!TranslationService.instance) {
throw new Error('TranslationService not initialized');
}
return TranslationService.instance;
}
/**
* Gets the singleton instance of the translation service..
* @param translations The translations to use.
*/
constructor(translations: ILanguageTranslations[]) {
if (TranslationService.instance) {
return TranslationService.instance;
}
TranslationService.instance = this;
this._translations = translations;
}
/**
* Returns a translation for the given key.
* @param key The key to translate.
* @returns The translation.
* @remarks - If the translation is not found, the key is returned.
* - Look at the `translations.json` file to see all available translations.
*/
public get(key: string): string {
const language = this._translations.find(
(v) => v.lang === this._language,
);
if (language) {
if (language.translations.hasOwnProperty(key)) {
return language.translations[key] as string;
}
}
this._logger?.warn(`Translation for key ${key} not found`);
return key;
}
/**
* Returns all translations for the given key.
* @param key The key to translate.
* @returns The translations.
* @remarks - If the translation is not found, the key is returned.
* - Look at the `translations.json` file to see all available translations.
*/
public getAll(key: string): string[] {
const translationStrings: string[] = [];
for (const language of this._translations) {
if (language.translations.hasOwnProperty(key)) {
translationStrings.push(language.translations[key]);
} else {
this._logger?.warn(
`Translation for key ${key} not found in language ${language.lang}`,
);
translationStrings.push(key);
}
}
return translationStrings;
}
}
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