/**
 * Sub-Store 节点名称属性注入脚本 (全自动配置驱动版)
 * 核心架构：动态按长度排序编译正则 + 智能边界识别 + O(1) 映射提取
 * 维护说明：仅需修改 featureMap 字典即可，底部逻辑永远无需改动。
 */
// noinspection JSUnusedGlobalSymbols
const COMMON_SCRIPT_URL = 'https://git.orionc.me/orion/script/raw/branch/main/substore/common.js?v=20260603-6';
const hasCurrentRenameUtils = utils => Boolean(
    utils && typeof utils.normalizeLeadingMojibakeFlag === 'function'
);

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();

    // ================= 唯一配置区 =================
    // 在这里新增或修改关键词。格式："节点关键词": "想要注入的标签"
    // 支持大小写混合，支持包含空格或特殊符号。
    // 日后如果要加 IEPL，只需在这里写 "IEPL": "专线"
    const featureMap = {
        "GTM 0.5x": "三网",
        "GTM":      "三网",
        "CT":       "CFW",
        "S1":       "广移",
        "S2":       "广电",
        "S3":       "广移",
        "S4":       "广联",
        "BGP":      "cn2",
        "D":        "直连",
        "Anytls":   "直连",
        "Hy2":      "直连"
    };

    // 已经由标签表达含义的特征码，会自动从展示名中移除。
    // 维护方式：只改 featureMap 即可，这里不需要单独配置隐藏词。
    // 示例：🇭🇰 HK06-GTM Oilguy专线 [三网] - SNTP
    // 输出：🇭🇰 HK 06 O专线 [三网]-SNTP
    // ==============================================


    // ================= 核心逻辑区 (无需修改) =================

    // 1. 初始化预处理：生成稳定的查找字典 (全大写+去空格)
    // 目的：无论节点名叫 "gtm 0.5x" 还是 "GTM0.5X"，都能稳定映射
    const normalizedFeatureMap = {};
    const featureKeywords = Object.keys(featureMap);
    const normalizeFeatureKeyword = keyword => keyword.toUpperCase().replace(/\s+/g, '');
    const normalizeHiddenFeatureKeyword = keyword => keyword.trim().replace(/\s+\d+(?:\.\d+)?x$/i, '');
    for (const featureKeyword of featureKeywords) {
        normalizedFeatureMap[normalizeFeatureKeyword(featureKeyword)] = featureMap[featureKeyword];
    }

    const buildKeywordPattern = keyword => {
        const keywordPattern = keyword.trim().split(/\s+/).filter(Boolean).map(utils.escapeRegex).join('\\s*');
        const trimmedKeyword = keyword.trim();
        if (/^[A-Za-z0-9]/.test(trimmedKeyword) && /[A-Za-z0-9]$/.test(trimmedKeyword)) {
            return `\\b${keywordPattern}\\b`;
        }
        return keywordPattern;
    };

    const hiddenFeatureKeywords = [...new Set(featureKeywords.map(normalizeHiddenFeatureKeyword))];
    const hiddenFeatureRegexList = [...hiddenFeatureKeywords]
        .sort((firstKeyword, secondKeyword) => secondKeyword.length - firstKeyword.length)
        .map(hiddenFeatureKeyword => new RegExp(`(^|[\\s-]+)${buildKeywordPattern(hiddenFeatureKeyword)}(?=$|[\\s-]+)`, 'ig'));

    const stripHiddenFeatureKeywords = proxyName => hiddenFeatureRegexList
        .reduce((strippedName, hiddenFeatureRegex) => strippedName.replace(hiddenFeatureRegex, ''), proxyName)
        .replace(/\s{2,}/g, ' ')
        .replace(/\s+-/g, '-')
        .replace(/-\s+/g, ' ')
        .replace(/^-+|-+$/g, '')
        .trim();

    const abbreviateDedicatedLineProvider = proxyName => proxyName.replace(
        /\b([A-Za-z])[A-Za-z]*\s*专线/g,
        (match, providerInitial) => `${providerInitial.toUpperCase()}专线`
    );

    const normalizeDisplayName = proxyName => abbreviateDedicatedLineProvider(
        utils.normalizeRegionSequence(proxyName.replace(/\b(\d+(?:\.\d+)?)x\b/gi, '$1X'))
            .replace(/\b(\d+(?:\.\d+)?)X\b/g, '$1x')
    );

    // 2. 动态构建复合正则表达式 (核心引擎)
    // 按字符串长度降序排序，彻底解决 "短路匹配" (Short-Circuit) 问题
    const sortedFeatureKeywords = [...featureKeywords].sort(
        (firstFeatureKeyword, secondFeatureKeyword) => secondFeatureKeyword.length - firstFeatureKeyword.length
    );

    const featureRegexParts = sortedFeatureKeywords.map(featureKeyword => {
        // 自动转义正则特殊字符 (防注入报错)
        return buildKeywordPattern(featureKeyword);
    });

    // 动态拼接出类似: /(GTM\s*0\.5x|\bAnytls\b|\bBGP\b|...)/i
    const featureRegex = new RegExp(`(${featureRegexParts.join('|')})`, 'i');

    // 缓存后缀匹配正则，避免循环内重复创建
    const suffixRegex = /\s*-\s*(SNTP.*)$/i;
    const normalizeSntpSuffixSpacing = proxyName => proxyName.replace(suffixRegex, '-$1');
    const normalizeCloudflareLabel = proxyName => proxyName
        .replace(/\s*\[(?:CF|Cloudflare)]\s*/gi, ' [CFW] ')
        .replace(/\s{2,}/g, ' ')
        .trim();

    // 3. 执行节点遍历与注入
    return proxies.map(proxy => {
        if (typeof proxy.name !== 'string') return proxy;
        let proxyName = normalizeCloudflareLabel(normalizeSntpSuffixSpacing(proxy.name));

        // 单次复合正则扫描提取
        const featureMatch = proxyName.match(featureRegex);
        if (!featureMatch) {
            proxy.name = normalizeDisplayName(proxyName);
            return proxy; // 未命中配置库，仅保留缩写结果后放行
        }

        // 清洗提取到的特征词，并去 O(1) 字典中取值
        const normalizedMatchedKeyword = normalizeFeatureKeyword(featureMatch[1]);
        const injectedFeatureLabel = normalizedFeatureMap[normalizedMatchedKeyword];

        if (!injectedFeatureLabel) return proxy; // 兜底安全校验

        proxyName = normalizeDisplayName(stripHiddenFeatureKeywords(proxyName));

        // 格式化组装与幂等校验 (防重复注入 Bug)
        const formattedFeatureLabel = ` [${injectedFeatureLabel}]`;
        if (proxyName.includes(formattedFeatureLabel)) {
            proxy.name = proxyName;
            return proxy;
        }

        // 实施中缀注入 (Infix Injection)
        if (suffixRegex.test(proxyName)) {
            proxy.name = proxyName.replace(suffixRegex, `${formattedFeatureLabel}-$1`);
        } else {
            // 纯净节点无后缀时，直接挂载在末尾
            proxy.name = proxyName + formattedFeatureLabel;
        }

        return proxy;
    });
}