@lzwme/m3u8-dl/cjs/lib/i18n.js

A free, open-source, and powerful m3u8 video batch downloader with multi-threaded downloading, play-while-downloading, WebUI management, video parsing, and more.

"use strict";
/**
 * Shared i18n utility for backend (CLI, SDK, Server)
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.LANG_CODES = void 0;
exports.detectLanguage = detectLanguage;
exports.setLanguage = setLanguage;
exports.getLanguage = getLanguage;
exports.getLang = getLang;
exports.t = t;
exports.LANG_CODES = new Set(['zh-CN', 'en']);
let globalLang = null;
/**
 * Detect language from OS or environment
 */
function detectLanguage() {
    // Check environment variable first
    const envLang = process.env.M3U8DL_LANG || process.env.LANG;
    if (envLang) {
        const langCode = envLang.toLowerCase();
        // 支持 zh-CN, zh-TW, zh 等变体映射到 zh-CN
        if (langCode.startsWith('zh')) {
            return 'zh-CN';
        }
        const baseLangCode = langCode.split('-')[0].split('_')[0];
        if (exports.LANG_CODES.has(baseLangCode)) {
            return baseLangCode;
        }
    }
    // Try to detect from OS locale
    try {
        const osLocale = Intl.DateTimeFormat().resolvedOptions().locale;
        const langCode = osLocale.toLowerCase();
        // 支持 zh-CN, zh-TW 等变体映射到 zh-CN
        if (langCode.startsWith('zh')) {
            return 'zh-CN';
        }
        const baseLangCode = langCode.split('-')[0];
        if (exports.LANG_CODES.has(baseLangCode)) {
            return baseLangCode;
        }
    }
    catch {
        // Ignore errors
    }
    // Fallback to English
    return 'en';
}
/**
 * Set global language context
 */
function setLanguage(lang) {
    globalLang = lang;
}
/**
 * Get global language context
 */
function getLanguage() {
    return globalLang;
}
/**
 * Get language from various sources
 */
function getLang(lang) {
    if (lang) {
        const normalizedLang = lang.toLowerCase();
        // 支持向后兼容：将 zh 映射到 zh-CN
        if (normalizedLang === 'zh' || normalizedLang.startsWith('zh')) {
            return 'zh-CN';
        }
        if (exports.LANG_CODES.has(normalizedLang)) {
            return normalizedLang;
        }
    }
    if (globalLang) {
        return globalLang;
    }
    return detectLanguage();
}
/**
 * Translation function
 */
function t(key, lang, params) {
    const targetLang = getLang(lang);
    // 将 zh-CN 映射到文件名 zh-CN.ts
    const langFile = targetLang === 'zh-CN' ? 'zh-CN' : targetLang;
    const translations = require(`../i18n/locales/${langFile}.js`);
    // Navigate through nested keys (e.g., 'cli.command.download.description')
    const keys = key.split('.');
    let value = translations.default || translations;
    for (const k of keys) {
        if (value && typeof value === 'object' && k in value) {
            value = value[k];
        }
        else {
            // Key not found, return the key itself
            return key;
        }
    }
    // If value is a string, replace params if provided
    if (typeof value === 'string' && params) {
        return value.replace(/\{(\w+)\}/g, (match, paramKey) => {
            return params[paramKey] !== undefined ? String(params[paramKey]) : match;
        });
    }
    return typeof value === 'string' ? value : key;
}