83 lines
2.6 KiB
JavaScript
83 lines
2.6 KiB
JavaScript
'use strict';
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exports = module.exports = {
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translate,
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getTranslations,
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getLanguages
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};
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const assert = require('assert'),
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debug = require('debug')('box:translation'),
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fs = require('fs'),
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path = require('path'),
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paths = require('./paths.js'),
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safe = require('safetydance'),
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settings = require('./settings.js');
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const TRANSLATION_FOLDER = path.join(paths.DASHBOARD_DIR, 'translation');
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// to be used together with getTranslations() => { translations, fallback }
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function translate(input, translations, fallbackTranslations) {
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assert.strictEqual(typeof input, 'string');
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assert.strictEqual(typeof translations, 'object');
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assert.strictEqual(typeof fallbackTranslations, 'object');
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const tokens = input.match(/{{(.*?)}}/gm);
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if (!tokens) return input;
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let output = input;
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tokens.forEach(function (token) {
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const key = token.slice(2).slice(0, -2).trim();
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let value = key.split('.').reduce(function (acc, cur) {
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if (acc === null) return null;
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return typeof acc[cur] !== 'undefined' ? acc[cur] : null;
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}, translations);
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// try fallback
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if (value === null) value = key.split('.').reduce(function (acc, cur) {
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if (acc === null) return null;
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return typeof acc[cur] !== 'undefined' ? acc[cur] : null;
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}, fallbackTranslations);
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if (value === null) value = token;
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output = output.replace(token, value);
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});
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return output;
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}
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async function getTranslations() {
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let fallback = safe.JSON.parse(fs.readFileSync(path.join(TRANSLATION_FOLDER, 'en.json'), 'utf8'));
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if (!fallback) {
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debug('getTranslations: Fallback language en not found', safe.error);
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fallback = {};
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}
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const lang = await settings.getLanguage();
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let translations = safe.JSON.parse(fs.readFileSync(path.join(TRANSLATION_FOLDER, lang + '.json'), 'utf8'));
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if (!translations) {
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debug(`getTranslations: Requested language ${lang} not found`, safe.error);
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translations = {};
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}
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return { translations, fallback };
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}
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async function getLanguages() {
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// we always return english to avoid dashboard breakage
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let languages = ['en'];
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const [error, result] = await safe(fs.promises.readdir(TRANSLATION_FOLDER));
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if (error) {
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debug('getLanguages: Failed to list translations', error);
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return languages;
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}
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const jsonFiles = result.filter(function (file) { return path.extname(file) === '.json'; });
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languages = jsonFiles.map(function (file) { return path.basename(file, '.json'); });
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return languages;
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}
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