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session-desktop/ts/util/i18n/functions/getMessage.ts

50 lines
1.9 KiB
TypeScript

/** NOTE: Because of docstring limitations changes MUST be manually synced between {@link setupI18n.getMessage } and {@link window.i18n } */
import type {
LocalizerToken,
LocalizerDictionary,
GetMessageArgs,
SetupI18nReturnType,
} from '../../../types/Localizer';
import { i18nLog } from '../shared';
import { formatMessageWithArgs } from './formatMessageWithArgs';
import { getRawMessage } from './getRawMessage';
import { inEnglish } from './inEnglish';
import { stripped } from './stripped';
import { localizeFromOld, type StringArgsRecord } from '../localizedString';
/**
* Retrieves a localized message string, substituting variables where necessary.
*
* @param token - The token identifying the message to retrieve.
* @param args - An optional record of substitution variables and their replacement values. This is required if the string has dynamic variables.
*
* @returns The localized message string with substitutions applied.
*
* @example
* // The string greeting is 'Hello, {name}!' in the current locale
* window.i18n('greeting', { name: 'Alice' });
* // => 'Hello, Alice!'
*
* // The string search is '{count, plural, one [{found_count} of # match] other [{found_count} of # matches]}' in the current locale
* window.i18n('search', { count: 1, found_count: 1 });
* // => '1 of 1 match'
*/
function getMessageDefault<T extends LocalizerToken, R extends LocalizerDictionary[T]>(
...[token, args]: GetMessageArgs<T>
): R | T {
try {
return localizeFromOld<T>(token as T, args as StringArgsRecord<R>).toString() as T | R;
} catch (error) {
i18nLog(error.message);
return token as R;
}
}
getMessageDefault.inEnglish = inEnglish;
getMessageDefault.stripped = stripped;
getMessageDefault.getRawMessage = getRawMessage;
getMessageDefault.formatMessageWithArgs = formatMessageWithArgs;
export const getMessage: SetupI18nReturnType = getMessageDefault as SetupI18nReturnType;