'use strict';

var cookie = require('js-cookie');

const languageCodes = [
    "af", "sq", "am", "ar", "hy", "as", "ay", "az", "bm", "ba", "eu", "be", "bn", "bh", "bi", "bs", "br", "bg", "my", "ca", "ch", "ce", "ny", "zh", "cv", "kw", "co", "cr", "hr", "cs", "da", "dv", "nl", "dz", "en", "eo", "et", "ee", "fo", "fj", "fi", "fr", "fy", "ga", "gd", "gl", "lg", "ka", "de", "ki", "el", "gn", "gu", "ht", "ha", "he", "hz", "hi", "ho", "hu", "is", "ig", "id", "ia", "ie", "iu", "ik", "in", "ga", "it", "ja", "jv", "kl", "kn", "kr", "ks", "kk", "km", "ki", "rw", "ko", "ku", "kj", "lo", "la", "lv", "li", "ln", "lt", "lb", "mk", "mg", "ms", "ml", "mt", "mi", "mr", "mh", "mn", "na", "nv", "nd", "ne", "ng", "nb", "nn", "no", "ii", "oc", "oj", "or", "om", "os", "pa", "pi", "fa", "pl", "pt", "ps", "qu", "rm", "ro", "ru", "sm", "sg", "sa", "sc", "sr", "sn", "sd", "si", "sk", "sl", "so", "st", "es", "su", "sw", "ss", "sv", "tl", "ty", "tg", "ta", "tt", "te", "th", "bo", "ti", "to", "tn", "tr", "tk", "tw", "ug", "uk", "ur", "uz", "ve", "vi", "vo", "cy", "wa", "wo", "xh", "yi", "yo", "zu"
];
let I18nObject = {
    locale: {},
    locales: {},
    localeId: 'languageId',
    defaultLocale: 'zh',
    useLocales: languageCodes
};
const NotificationCenter = new Map(); // 消息中心
class Locale {
    language;
    dirNames = [];
    dirNameKeys = '';
    dirNameValues = {};
    constructor(dirNames, language) {
        this.language = getLanguage(language);
        this.initDirNameKeys(dirNames);
        this.initDirNameValues();
    }
    initDirNameKeys(dirNames) {
        if (typeof dirNames === 'string') {
            dirNames = [dirNames];
        }
        // 根据首字母排序
        if (dirNames.length > 1) {
            dirNames.sort((a, b) => {
                let firstCharA = a.charAt(0).toLowerCase();
                let firstCharB = b.charAt(0).toLowerCase();
                if (firstCharA < firstCharB) {
                    return -1;
                }
                if (firstCharA > firstCharB) {
                    return 1;
                }
                return 0;
            });
        }
        this.dirNames = dirNames;
        this.dirNameKeys = dirNames.join("-");
    }
    initDirNameValues() {
        let locale = getLocale(this.language);
        for (let i = 0; i < this.dirNames.length; i++) {
            const name = this.dirNames[i];
            if (locale && locale[name]) {
                const curLocale = locale[name] || {};
                this.dirNameValues = { ...this.dirNameValues, ...curLocale };
            }
        }
    }
    update(language) {
        this.language = getLanguage(language);
        this.initDirNameValues();
    }
}
const initI18n = (options) => {
    if (options.locales)
        I18nObject['locales'] = options.locales;
    if (options.useLocales)
        I18nObject['useLocales'] = options.useLocales;
    if (options.localeId)
        I18nObject['localeId'] = options.localeId;
    if (options.defaultLocale)
        I18nObject['defaultLocale'] = options.defaultLocale;
};
const getModules = (modules, type) => {
    if (type == "require") {
        return getModuleByRequireContext(modules);
    }
    else if (type == "glob") {
        return getModuleByMetaGlob(modules);
    }
};
const getModuleByMetaGlob = (modules) => {
    let resources = {};
    if (!modules)
        return {};
    Object.keys(modules).forEach((key) => {
        if (modules[key].default) {
            const urlArr = key.split('/');
            const matched = key.match(/([A-Za-z0-9-_]+)\./i);
            if (matched && matched.length > 1) {
                const dirName = urlArr.splice(-2, 1)[0]; // 获取目录名
                const lang = matched[1]; // 语言类型
                const context = modules[key].default;
                if (!resources[lang])
                    resources[lang] = {};
                resources[lang][dirName] = context;
            }
        }
    });
    return resources;
};
const getModuleByRequireContext = (modules) => {
    let resources = {};
    if (!modules)
        return {};
    modules.keys().forEach((key) => {
        if (modules(key)) {
            const urlArr = key.split('/');
            const matched = key.match(/([A-Za-z0-9-_]+)\./i);
            if (matched && matched.length > 1) {
                const dirName = urlArr.splice(-2, 1)[0]; // 获取目录名
                const lang = matched[1]; // 语言类型
                const context = modules(key);
                if (!resources[lang])
                    resources[lang] = {};
                resources[lang][dirName] = context;
            }
        }
    });
    return resources;
};
const getLocale = (language) => {
    const languageId = getLanguage(language);
    const locales = getLocales();
    if (locales && languageId && locales[languageId]) {
        return locales[languageId];
    }
    return {};
};
const getLocales = () => I18nObject.locales;
const getLanguage = (language) => {
    let langId = language ? language : cookie.get(I18nObject.localeId) || I18nObject.defaultLocale;
    if (!I18nObject.useLocales.includes(langId)) {
        console.warn('not found lang: ' + langId);
        langId = I18nObject.defaultLocale;
    }
    return langId;
};
const setLanguage = (language) => {
    cookie.set(I18nObject.localeId, language);
    I18nObject.defaultLocale = language;
    // update watcher
    NotificationCenter.forEach((update) => update(language));
};
const getLang = (key, language) => {
    const local = getLocale(language);
    if (local && local[key]) {
        return local[key];
    }
    return key;
};
const useLang = (dirNames, language) => {
    if (Object.keys(I18nObject.locales).length == 0) {
        console.warn('Please initialize first and execute initI18n()');
    }
    // 初始化页面级别的 hooks
    const locale = new Locale(dirNames, language);
    // 通过消息中心管理所有的 locale
    if (!NotificationCenter.has(locale.dirNameKeys)) {
        NotificationCenter.set(locale.dirNameKeys, (lang) => locale.update(lang));
    }
    const t = (key, data) => {
        const lang = locale["dirNameValues"];
        if (!lang[key]) {
            console.warn('missing lang key: ' + key);
            return '';
        }
        let _lang = lang[key];
        if (data && Object.keys(data).length > 0) {
            Object.keys(data).map((item) => {
                _lang = _lang.replace(`{${item}}`, data[item]);
            });
            return _lang;
        }
        else
            return lang[key];
    };
    return {
        t,
        defaultLocale: locale.language,
        locale: locale.dirNameValues,
        locales: I18nObject.locales,
        localeId: I18nObject.localeId,
        useLocales: I18nObject.useLocales
    };
};
const resetI18n = ({ removeCookie = true }) => {
    I18nObject = {
        locale: {},
        locales: {},
        localeId: 'languageId',
        defaultLocale: 'zh',
        useLocales: languageCodes
    };
    NotificationCenter.clear();
    if (removeCookie) {
        cookie.remove(I18nObject.localeId);
    }
};

exports.getLang = getLang;
exports.getLanguage = getLanguage;
exports.getLocale = getLocale;
exports.getLocales = getLocales;
exports.getModuleByMetaGlob = getModuleByMetaGlob;
exports.getModuleByRequireContext = getModuleByRequireContext;
exports.getModules = getModules;
exports.initI18n = initI18n;
exports.languageCodes = languageCodes;
exports.resetI18n = resetI18n;
exports.setLanguage = setLanguage;
exports.useLang = useLang;