// Mock data for Chijie admin console.
// Models the shape returned by GET /api/nodes, /api/traffic, /api/fingerprints, /api/stats.

const REGION_NAMES = {
  HK: "Hong Kong", TW: "Taiwan", MO: "Macau", CN: "Mainland China",
  JP: "Japan", KR: "South Korea",
  SG: "Singapore", TH: "Thailand", VN: "Vietnam", ID: "Indonesia", MY: "Malaysia",
  PH: "Philippines", KH: "Cambodia", LA: "Laos", MM: "Myanmar", BN: "Brunei",
  IN: "India", PK: "Pakistan", BD: "Bangladesh", LK: "Sri Lanka",
  US: "United States", CA: "Canada", MX: "Mexico",
  BR: "Brazil", AR: "Argentina", CL: "Chile", CO: "Colombia", PE: "Peru",
  GB: "United Kingdom", UK: "United Kingdom", IE: "Ireland", FR: "France", DE: "Germany",
  NL: "Netherlands", BE: "Belgium", LU: "Luxembourg",
  SE: "Sweden", NO: "Norway", FI: "Finland", DK: "Denmark", IS: "Iceland",
  ES: "Spain", PT: "Portugal", IT: "Italy", GR: "Greece",
  AT: "Austria", CH: "Switzerland", PL: "Poland", CZ: "Czechia", HU: "Hungary",
  SK: "Slovakia", SI: "Slovenia", HR: "Croatia", RO: "Romania", BG: "Bulgaria",
  RS: "Serbia", UA: "Ukraine", BY: "Belarus", LT: "Lithuania", LV: "Latvia",
  EE: "Estonia", MD: "Moldova", RU: "Russia", TR: "Turkey",
  AE: "United Arab Emirates", SA: "Saudi Arabia", IL: "Israel", QA: "Qatar",
  KW: "Kuwait", OM: "Oman", BH: "Bahrain", JO: "Jordan", LB: "Lebanon",
  IQ: "Iraq", IR: "Iran",
  AU: "Australia", NZ: "New Zealand",
  ZA: "South Africa", EG: "Egypt", NG: "Nigeria", KE: "Kenya", MA: "Morocco",
  DZ: "Algeria", TN: "Tunisia",
  UN: "Unassigned",
};
const REGION_FLAGS = {
  HK: "🇭🇰", TW: "🇹🇼", MO: "🇲🇴", CN: "🇨🇳",
  JP: "🇯🇵", KR: "🇰🇷",
  SG: "🇸🇬", TH: "🇹🇭", VN: "🇻🇳", ID: "🇮🇩", MY: "🇲🇾",
  PH: "🇵🇭", KH: "🇰🇭", LA: "🇱🇦", MM: "🇲🇲", BN: "🇧🇳",
  IN: "🇮🇳", PK: "🇵🇰", BD: "🇧🇩", LK: "🇱🇰",
  US: "🇺🇸", CA: "🇨🇦", MX: "🇲🇽",
  BR: "🇧🇷", AR: "🇦🇷", CL: "🇨🇱", CO: "🇨🇴", PE: "🇵🇪",
  GB: "🇬🇧", UK: "🇬🇧", IE: "🇮🇪", FR: "🇫🇷", DE: "🇩🇪",
  NL: "🇳🇱", BE: "🇧🇪", LU: "🇱🇺",
  SE: "🇸🇪", NO: "🇳🇴", FI: "🇫🇮", DK: "🇩🇰", IS: "🇮🇸",
  ES: "🇪🇸", PT: "🇵🇹", IT: "🇮🇹", GR: "🇬🇷",
  AT: "🇦🇹", CH: "🇨🇭", PL: "🇵🇱", CZ: "🇨🇿", HU: "🇭🇺",
  SK: "🇸🇰", SI: "🇸🇮", HR: "🇭🇷", RO: "🇷🇴", BG: "🇧🇬",
  RS: "🇷🇸", UA: "🇺🇦", BY: "🇧🇾", LT: "🇱🇹", LV: "🇱🇻",
  EE: "🇪🇪", MD: "🇲🇩", RU: "🇷🇺", TR: "🇹🇷",
  AE: "🇦🇪", SA: "🇸🇦", IL: "🇮🇱", QA: "🇶🇦",
  KW: "🇰🇼", OM: "🇴🇲", BH: "🇧🇭", JO: "🇯🇴", LB: "🇱🇧",
  IQ: "🇮🇶", IR: "🇮🇷",
  AU: "🇦🇺", NZ: "🇳🇿",
  ZA: "🇿🇦", EG: "🇪🇬", NG: "🇳🇬", KE: "🇰🇪", MA: "🇲🇦",
  DZ: "🇩🇿", TN: "🇹🇳",
  UN: "🏳️",
};

function normalizeRegionCodeForFlag(code) {
  const base = String(code || "").trim().toUpperCase().replace(/-RES$/, "");
  if (base === "UK") return "GB";
  return base;
}

function regionFlag(code) {
  const normalized = normalizeRegionCodeForFlag(code);
  if (REGION_FLAGS[normalized]) return REGION_FLAGS[normalized];
  if (!/^[A-Z]{2}$/.test(normalized) || normalized === "UN") return null;
  return normalized
    .split("")
    .map(ch => String.fromCodePoint(0x1F1E6 + ch.charCodeAt(0) - 65))
    .join("");
}

let _id = 0;
const uid = (p) => `${p}_${++_id}`;

// Node pools
const initialPools = [
  {
    name: "brightdata",
    source: "template",
    type: "http_proxy",
    server: "brd.superproxy.io",
    port: 33335,
    username_template: "brd-customer-hl_xxxxxxxx-zone-yyy-country-{region}",
    password: "••••••••",
    residential: false,
    enabled: true,
    tags: ["template", "fallback"],
    nodes: [],
  },
  {
    name: "brightdata-res",
    source: "template",
    type: "http_proxy",
    server: "brd.superproxy.io",
    port: 33335,
    username_template: "brd-customer-hl_xxxxxxxx-zone-res-country-{region}",
    password: "••••••••",
    residential: true,
    enabled: true,
    tags: ["template", "residential"],
    nodes: [],
  },
  {
    name: "direct",
    source: "direct",
    enabled: true,
    nodes: [],
  },
  {
    name: "hk-socks",
    source: "static",
    enabled: true,
    nodes: [
      { id: uid("n"), name: "hk-vps", type: "socks5", server: "10.20.30.40", port: 1080,
        region: "HK", residential: false, enabled: true, alive: true, latency: 38, fail_count: 0, tags: [] },
    ],
  },
  {
    name: "us-fleet",
    source: "static",
    enabled: true,
    nodes: [
      { id: uid("n"), name: "us-east-1", type: "socks5", server: "us1.proxy.internal", port: 1080,
        region: "US", residential: false, enabled: true, alive: true, latency: 142, fail_count: 0, tags: ["primary"] },
      { id: uid("n"), name: "us-west-2", type: "http_proxy", server: "us2.proxy.internal", port: 8080,
        region: "US", residential: false, enabled: true, alive: true, latency: 168, fail_count: 0, tags: [] },
      { id: uid("n"), name: "us-res-01", type: "socks5", server: "res-us.example.net", port: 1080,
        region: "US", residential: true, enabled: true, alive: true, latency: 312, fail_count: 0, tags: ["residential"] },
    ],
  },
  {
    name: "良心云",
    source: "subscription",
    url: "https://liangxin.xyz/api/v1/liangxin?OwO=•••",
    update_interval: "1h",
    last_updated: "12 min ago",
    last_error: "",
    enabled: true,
    reject_regex: ["流量|套餐|官网|剩余|到期"],
    nodes: [
      { id: uid("n"), name: "🇺🇸 美国洛杉矶 01 BGP", type: "vmess", region: "US", alias: "openai-us-primary",
        residential: false, enabled: true, alive: true, latency: 156, fail_count: 0, tags: [] },
      { id: uid("n"), name: "🇺🇸 美国硅谷 02 流媒体", type: "trojan", region: "US",
        residential: false, enabled: true, alive: true, latency: 188, fail_count: 0, tags: ["streaming"] },
      { id: uid("n"), name: "🇯🇵 日本东京 01", type: "vless", region: "JP",
        residential: false, enabled: true, alive: true, latency: 62, fail_count: 0, tags: [] },
      { id: uid("n"), name: "🇯🇵 日本大阪 02", type: "vmess", region: "JP",
        residential: false, enabled: true, alive: false, latency: 0, fail_count: 7, tags: [] },
      { id: uid("n"), name: "🇭🇰 香港中转 01", type: "trojan", region: "HK",
        residential: false, enabled: true, alive: true, latency: 22, fail_count: 0, tags: [] },
      { id: uid("n"), name: "🇭🇰 香港 IPLC 02", type: "vless", region: "HK",
        residential: false, enabled: true, alive: true, latency: 28, fail_count: 0, tags: ["iplc"] },
      { id: uid("n"), name: "🇸🇬 新加坡 01", type: "vmess", region: "SG",
        residential: false, enabled: true, alive: true, latency: 88, fail_count: 0, tags: [] },
      { id: uid("n"), name: "🇹🇼台湾高速01|BGP|流媒体", type: "trojan", region: "TW",
        residential: false, enabled: true, alive: true, latency: 44, fail_count: 0, tags: ["streaming"] },
      { id: uid("n"), name: "🇰🇷 韩国 01", type: "vless", region: "KR",
        residential: false, enabled: false, alive: false, latency: 0, fail_count: 0, tags: [] },
    ],
  },
  {
    name: "res-fleet",
    source: "subscription",
    url: "https://res.example.com/sub?token=•••",
    update_interval: "30m",
    last_updated: "4 min ago",
    last_error: "",
    enabled: true,
    residential: true,
    nodes: [
      { id: uid("n"), name: "US-Residential-NYC", type: "socks5", region: "US",
        residential: true, enabled: true, alive: true, latency: 280, fail_count: 0, tags: ["residential"] },
      { id: uid("n"), name: "US-Residential-LAX", type: "socks5", region: "US",
        residential: true, enabled: true, alive: true, latency: 311, fail_count: 1, tags: ["residential"] },
      { id: uid("n"), name: "HK-Residential-01", type: "http_proxy", region: "HK",
        residential: true, enabled: true, alive: true, latency: 198, fail_count: 0, tags: ["residential"] },
      { id: uid("n"), name: "JP-Residential-01", type: "socks5", region: "JP",
        residential: true, enabled: true, alive: false, latency: 0, fail_count: 12, tags: ["residential"] },
    ],
  },
];

// Build region groups from pools
function buildRegionGroups(pools) {
  const groups = {};
  for (const pool of pools) {
    if (pool.source !== "static" && pool.source !== "subscription") continue;
    if (!pool.enabled) continue;
    for (const n of pool.nodes || []) {
      if (!n.region || n.region === "UN") continue;
      const code = n.residential ? `${n.region}-RES` : n.region;
      if (!groups[code]) {
        groups[code] = {
          code, region: n.region, residential: !!n.residential,
          name: REGION_NAMES[n.region] || n.region,
          flag: regionFlag(n.region) || "🏳️",
          count: 0, online: 0, sources: new Set(), latencies: [],
        };
      }
      groups[code].count += 1;
      groups[code].sources.add(pool.name);
      if (n.enabled && n.alive) {
        groups[code].online += 1;
        if (n.latency > 0) groups[code].latencies.push(n.latency);
      }
    }
  }
  // Template fallback availability
  const hasNormalTpl = pools.some(p => p.source === "template" && p.enabled && !p.residential);
  const hasResTpl = pools.some(p => p.source === "template" && p.enabled && p.residential);
  return Object.values(groups).map(g => ({
    ...g,
    sources: Array.from(g.sources),
    minLatency: g.latencies.length ? Math.min(...g.latencies) : null,
    templateBackup: g.residential ? hasResTpl : hasNormalTpl,
  })).sort((a, b) => {
    if (a.residential !== b.residential) return a.residential ? 1 : -1;
    return a.region.localeCompare(b.region);
  });
}

// TLS fingerprints
const initialFingerprints = [
  { name: "chrome", preset: "chrome", custom: false, tested: true, lastTest: "2m ago" },
  { name: "edge", preset: "edge", custom: false, tested: true, lastTest: "2m ago" },
  { name: "firefox", preset: "firefox", custom: false, tested: true, lastTest: "2m ago" },
  { name: "safari", preset: "safari", custom: false, tested: true, lastTest: "5m ago" },
  { name: "ios", preset: "ios", custom: false, tested: true, lastTest: "5m ago" },
  { name: "random", preset: "random", custom: false, tested: true, lastTest: "5m ago" },
  { name: "chrome-131-strict", preset: null, custom: true, tested: false,
    ja3: "771,4865-4866-4867-49195-49199,0-23-65281-10-11-35-16-5-13-18-51-45-43-27-17513,29-23-24,0", lastTest: "—" },
];

// Traffic — recent requests + minute-level series
const TYPES = ["http", "tunnel"];
const METHODS = ["GET", "POST", "PUT", "DELETE", "GET", "POST", "GET"];
const TARGETS = [
  "api.openai.com", "api.anthropic.com", "x.com", "instagram.com",
  "api.cloudflare.com", "discord.com", "telegram.org", "tiktok.com",
  "youtube.com", "api.stripe.com", "google.com",
];
const STRATEGIES = ["least-latency", "round-robin", "random"];

function buildTraffic(pools) {
  const realNodes = pools.flatMap(p =>
    (p.source === "static" || p.source === "subscription") && p.enabled
      ? p.nodes.filter(n => n.enabled && n.alive).map(n => ({ ...n, pool: p.name }))
      : []
  );
  const tplPools = pools.filter(p => p.source === "template" && p.enabled);
  const requests = [];
  const now = Date.now();
  for (let i = 0; i < 64; i++) {
    const useTemplate = Math.random() < 0.18;
    const residential = Math.random() < 0.22;
    const candidates = useTemplate
      ? tplPools.filter(p => !!p.residential === residential)
      : realNodes.filter(n => !!n.residential === residential);
    let region, pool, node, isTpl = false;
    if (useTemplate && candidates.length) {
      const codes = ["US","HK","JP","TW","SG","NG","IN","BR","KR","DE"];
      region = codes[Math.floor(Math.random() * codes.length)];
      pool = candidates[0].name;
      node = `template:${region.toLowerCase()}`;
      isTpl = true;
    } else if (candidates.length) {
      const c = candidates[Math.floor(Math.random() * candidates.length)];
      region = c.region; pool = c.pool; node = c.name;
    } else {
      region = "US"; pool = "us-fleet"; node = "us-east-1";
    }
    const okRoll = Math.random();
    let status = 200;
    let err = "";
    if (okRoll < 0.04) { status = 502; err = "upstream connect timeout"; }
    else if (okRoll < 0.07) { status = 429; err = "rate limited"; }
    else if (okRoll < 0.09) { status = 0; err = "egress dial failed"; }
    else if (okRoll < 0.12) status = 401;
    else if (okRoll < 0.18) status = 304;
    requests.push({
      id: uid("r"),
      ts: now - i * (8000 + Math.random() * 22000),
      type: TYPES[Math.random() < 0.92 ? 0 : 1],
      method: METHODS[Math.floor(Math.random() * METHODS.length)],
      url: `https://${TARGETS[Math.floor(Math.random() * TARGETS.length)]}/v1/path/${(Math.random()+1).toString(36).substring(2,8)}`,
      region,
      group: residential ? `${region}-RES` : region,
      strategy: STRATEGIES[Math.floor(Math.random() * STRATEGIES.length)],
      residential,
      pool,
      node,
      template: isTpl,
      tls: ["chrome","ios","safari","firefox",""][Math.floor(Math.random()*5)],
      status,
      duration_ms: Math.round(60 + Math.random() * 1400),
      bytes: Math.round(400 + Math.random() * 240000),
      error: err,
    });
  }
  // minute series
  const series = [];
  for (let i = 59; i >= 0; i--) {
    const total = Math.round(80 + Math.sin(i / 6) * 30 + Math.random() * 40);
    const errors = Math.round(Math.max(0, Math.random() * 6 - 1));
    series.push({
      t: i,
      total,
      success: total - errors,
      errors,
      p95: Math.round(280 + Math.sin(i / 9) * 90 + Math.random() * 80),
    });
  }
  return { requests: requests.sort((a,b) => b.ts - a.ts), series };
}

window.PG = {
  REGION_NAMES, REGION_FLAGS, regionFlag,
  initialPools, initialFingerprints,
  buildRegionGroups, buildTraffic,
  uid,
};