/**
 * YinYun 专用节点清理脚本
 * - 将中文地区名压成国家短码并补齐国旗
 * - 忽略 YinYun 原始的 优选、数字编号和 (T)/(R) 线路标记
 * - 按地区出现顺序连续编号，方便全局 rename.js 再追加订阅后缀
 */
// noinspection JSUnusedGlobalSymbols
const COMMON_SCRIPT_VERSION = '20260702-1';
const COMMON_SCRIPT_URL = `https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=${COMMON_SCRIPT_VERSION}`;
const hasCurrentRenameUtils = utils => Boolean(
    utils && utils.version === COMMON_SCRIPT_VERSION
);

async function loadRenameUtils() {
    if (typeof globalThis !== 'undefined' && hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
        return globalThis.SubStoreRenameUtils;
    }

    const cache = typeof scriptResourceCache !== 'undefined' ? scriptResourceCache : null;
    let script = cache && cache.get(COMMON_SCRIPT_URL);
    if (!script) {
        const response = await $substore.http.get({ url: COMMON_SCRIPT_URL });
        script = response && (response.body || response.data || response);
        if (cache) cache.set(COMMON_SCRIPT_URL, script);
    }

    new Function(String(script))();
    if (!hasCurrentRenameUtils(globalThis.SubStoreRenameUtils)) {
        throw new Error('Loaded common.js is missing current rename utilities');
    }
    return globalThis.SubStoreRenameUtils;
}

async function operator(proxies) {
    const utils = await loadRenameUtils();
    const regionAliases = [
        ['哈萨克斯坦', 'KZ'],
        ['印度尼西亚', 'ID'],
        ['孟加拉国', 'BD'],
        ['澳大利亚', 'AU'],
        ['保加利亚', 'BG'],
        ['格鲁吉亚', 'GE'],
        ['立陶宛', 'LT'],
        ['俄罗斯', 'RU'],
        ['新加坡', 'SG'],
        ['马来西亚', 'MY'],
        ['罗马尼亚', 'RO'],
        ['亚美尼亚', 'AM'],
        ['葡萄牙', 'PT'],
        ['拉脱维亚', 'LV'],
        ['加拿大', 'CA'],
        ['澳洲', 'AU'],
        ['捷克', 'CZ'],
        ['南非', 'ZA'],
        ['芬兰', 'FI'],
        ['瑞士', 'CH'],
        ['墨西哥', 'MX'],
        ['瑞典', 'SE'],
        ['比利时', 'BE'],
        ['阿联酋', 'AE'],
        ['法国', 'FR'],
        ['波兰', 'PL'],
        ['荷兰', 'NL'],
        ['奥地利', 'AT'],
        ['巴西', 'BR'],
        ['土耳其', 'TR'],
        ['以色列', 'IL'],
        ['意大利', 'IT'],
        ['西班牙', 'ES'],
        ['乌克兰', 'UA'],
        ['德国', 'DE'],
        ['英国', 'UK'],
        ['印度', 'IN'],
        ['泰国', 'TH'],
        ['香港', 'HK'],
        ['美国', 'US'],
        ['日本', 'JP'],
        ['韩国', 'KR'],
        ['台湾', 'TW']
    ];
    const regionResolver = utils.createRegionResolver(regionAliases);

    const stripBackupLabel = name => String(name)
        .replace(/\s*(?:ᴮᴬᴷ|BAK|BACKUP)\s*$/iu, '')
        .trim();

    const stripLineType = name => String(name)
        .replace(/\s*[（(]\s*[TR]\s*[)）]\s*$/i, '')
        .trim();

    const regionPrefixOf = name => {
        if (/魔法节点/i.test(name)) return 'MAGIC';
        return regionResolver.aliasRegionPrefixOf(name) || utils.leadingRegionPrefixOf(name);
    };

    const nextSequence = utils.createSequenceCounter();

    return proxies.map(proxy => {
        if (typeof proxy.name !== 'string') {
            return proxy;
        }

        const cleanName = utils.stripSubscriptionSuffix(proxy.name, 'YinYun');
        const { text } = utils.splitLeadingOrInlineFlag(cleanName);
        const coreName = stripLineType(stripBackupLabel(text));
        const regionPrefix = regionPrefixOf(coreName);
        if (!regionPrefix) {
            proxy.name = coreName;
            return proxy;
        }

        const regionCode = regionPrefix.split(/\s+/)[0];
        const flag = regionPrefix === 'MAGIC' ? '' : utils.regionCodeToFlag(regionCode);
        proxy.name = [
            flag,
            regionPrefix,
            nextSequence(regionPrefix)
        ].filter(Boolean).join(' ').trim();

        return proxy;
    });
}