93 lines
2.8 KiB
JavaScript
93 lines
2.8 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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var 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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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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var tokens = input.match(/{{(.*?)}}/gm);
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if (!tokens) return input;
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var output = input;
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tokens.forEach(function (token) {
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var key = token.slice(2).slice(0, -2).trim();
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var 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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function getTranslations(callback) {
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assert.strictEqual(typeof callback, 'function');
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var fallback = {};
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try {
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fallback = JSON.parse(fs.readFileSync(path.join(TRANSLATION_FOLDER, 'en.json'), 'utf8'));
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} catch (e) {
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debug('getTranslations: Fallback language en not found', e);
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}
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settings.getLanguage(function (error, lang) {
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if (error) return callback(error);
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var translations = {};
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try {
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translations = JSON.parse(fs.readFileSync(path.join(TRANSLATION_FOLDER, lang + '.json'), 'utf8'));
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} catch (e) {
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debug(`getTranslations: Requested language ${lang} not found`, e);
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}
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return callback(null, { translations, fallback });
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});
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}
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function getLanguages(callback) {
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assert.strictEqual(typeof callback, 'function');
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// we always return english to avoid dashboard breakage
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var languages = ['en'];
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fs.readdir(TRANSLATION_FOLDER, function (error, result) {
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if (error) {
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debug('getLanguages: Failed to list translations', error);
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return callback(null, languages);
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}
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var 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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debug('Languages found:', jsonFiles);
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callback(null, languages);
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});
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}
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