/* 贪蛇出动 - UI：HUD 刷新 / 道具转盘 / 复活 / 结算 / Toast 与交互详情弹窗（双模式） */
(function () {
  'use strict';
  window.GS = window.GS || {};
  const U = GS.U;

  /* ---------- 道具图标：程序化 SVG ---------- */
  function itemSvg(key) {
    switch (key) {
      case 'helmet':
        return '<svg viewBox="0 0 64 64"><path d="M10 38a22 22 0 0 1 44 0v6H36l-4-8-4 8H10z" fill="#e04a3a"/><path d="M14 38a18 18 0 0 1 36 0" fill="none" stroke="#fff" stroke-width="3" opacity=".55"/><rect x="8" y="42" width="48" height="6" rx="3" fill="#b83224"/></svg>';
      case 'rocket':
        return '<svg viewBox="0 0 64 64"><path d="M32 4c8 8 10 20 10 28l-10 10-10-10c0-8 2-20 10-28z" fill="#e8ecf5"/><circle cx="32" cy="24" r="5" fill="#5a8dd0"/><path d="M22 32l-8 12 10-2zM42 32l8 12-10-2z" fill="#e04a3a"/><path d="M28 44l4 12 4-12z" fill="#ffb62e"/></svg>';
      case 'magnet':
        return '<svg viewBox="0 0 64 64"><path d="M18 12v20a14 14 0 0 0 28 0V12H36v20a4 4 0 0 1-8 0V12z" fill="#e04a3a"/><rect x="18" y="12" width="10" height="10" fill="#e8ecf5"/><rect x="36" y="12" width="10" height="10" fill="#e8ecf5"/></svg>';
      case 'expcard':
        return '<svg viewBox="0 0 64 64"><rect x="8" y="16" width="48" height="32" rx="5" fill="#ffd23e"/><rect x="8" y="16" width="48" height="32" rx="5" fill="none" stroke="#c98f00" stroke-width="2"/><circle cx="24" cy="32" r="8" fill="#fff3c4"/><path d="M38 26h12M38 32h12M38 38h8" stroke="#c98f00" stroke-width="3" stroke-linecap="round"/></svg>';
      default: return '';
    }
  }

  class UI {
    constructor() {
      this.el = id => document.getElementById(id);
      this.statsEl = this.el('gs-hud-stats');
      this.coinsEl = this.el('gs-stat-coins');
      this.luckyEl = this.el('gs-stat-lucky');
      this.killsEl = this.el('gs-stat-kills');
      this.progEl = this.el('gs-hud-progress');
      this.progFill = this.el('gs-progress-fill');
      this.progText = this.el('gs-progress-text');
      this.boardEl = this.el('gs-hud-board');
      this.boardList = this.el('gs-board-list');
      this.bestName = this.el('gs-best-name');
      this.bestScore = this.el('gs-best-score');
      this.rouletteEl = this.el('gs-roulette');
      this.reviveEl = this.el('gs-revive');
      this.resultEl = this.el('gs-result');
      this.toastEl = this.el('gs-toast');
      this.dlgEl = this.el('gs-dialog');
      this._bulbs();
      this._toastTimer = null;
      this._dlgTimer = null;
    }

    /* 转盘灯泡装饰 */
    _bulbs() {
      document.querySelectorAll('.gs-bulbs').forEach(box => {
        const vert = box.classList.contains('gs-bulbs-left') || box.classList.contains('gs-bulbs-right');
        const n = vert ? 7 : 12;
        for (let i = 0; i < n; i++) box.appendChild(document.createElement('i'));
      });
      setInterval(() => {
        document.querySelectorAll('.gs-bulbs i').forEach((b, i) => b.classList.toggle('off', (i + Math.floor(Date.now() / 400)) % 2 === 0));
      }, 400);
    }

    setUiMode(mode) { GS.CFG.uiMode = mode; }

    /* ---------- HUD ---------- */
    showHud(v) {
      this.statsEl.classList.toggle('gs-hidden', !v);
      this.boardEl.classList.toggle('gs-hidden', !v);
    }

    updateStats(totalCoins, lucky, kills) {
      this.coinsEl.textContent = U.fmt(totalCoins);
      this.luckyEl.textContent = U.fmt(lucky);
      this.killsEl.textContent = U.fmt(kills);
    }

    updateProgress(score, target, visible) {
      this.progEl.classList.toggle('gs-hidden', !visible);
      if (!visible) return;
      this.progFill.style.width = U.clamp(score / target * 100, 0, 100) + '%';
      this.progText.textContent = Math.floor(Math.min(score, target)) + '/' + target;
    }

    updateBoard(rows, me, best) {
      if (best) {
        this.bestName.textContent = best.name || '-';
        this.bestScore.textContent = U.fmt(best.score || 0);
      }
      let html = '';
      rows.forEach((r, i) => {
        const rank = i + 1;
        const medal = rank === 1 ? '👑' : (rank <= 3 ? ['①', '②', '③'][rank - 1] : rank);
        html += `<div class="gs-board-row${r.me ? ' me' : ''}">
          <span class="gs-board-rank r${rank}">${medal}</span>
          <span class="gs-board-name">${this._esc(r.name)}</span>
          <span class="gs-board-score">${U.fmt(r.score)}</span></div>`;
      });
      this.boardList.innerHTML = html;
    }

    _esc(s) { return String(s).replace(/[<>&"]/g, c => ({ '<': '&lt;', '>': '&gt;', '&': '&amp;', '"': '&quot;' }[c])); }

    /* ---------- 转盘 ---------- */
    showRoulette(gems) {
      this.rouletteEl.classList.remove('gs-hidden');
      this.el('gs-reroll-text').textContent = GS.CFG.rerollCost + ' 换一换';
      this.updateGems(gems);
    }
    hideRoulette() { this.rouletteEl.classList.add('gs-hidden'); }
    updateGems(gems) {
      const btn = this.el('gs-reroll');
      btn.disabled = gems < GS.CFG.rerollCost;
    }
    setReels(keys, selected) {
      document.querySelectorAll('.gs-reel').forEach((reel, i) => {
        reel.classList.toggle('selected', selected === i);
        reel.querySelector('.gs-reel-icon').innerHTML = itemSvg(keys[i]);
        reel.title = GS.ITEMS[keys[i]].name + '：' + GS.ITEMS[keys[i]].desc;
      });
    }
    spinReels(keys) {
      // 滚动动画：快速切换图标后落定
      const reels = document.querySelectorAll('.gs-reel');
      reels.forEach((reel, i) => {
        const icon = reel.querySelector('.gs-reel-icon');
        let n = 0;
        const timer = setInterval(() => {
          icon.innerHTML = itemSvg(U.pick(GS.ITEM_KEYS));
          if (++n > 8 + i * 4) { clearInterval(timer); icon.innerHTML = itemSvg(keys[i]); }
        }, 70);
      });
    }

    /* ---------- 复活 ---------- */
    showRevive(killerName, usedFree) {
      this.reviveEl.classList.remove('gs-hidden');
      this.el('gs-revive-killer').textContent = killerName || '对手';
      const btn = this.el('gs-revive-btn');
      btn.disabled = usedFree;
      btn.textContent = usedFree ? '已复活过' : '▶ 免费复活';
    }
    hideRevive() { this.reviveEl.classList.add('gs-hidden'); }
    updateReviveCount(n, pct) {
      this.el('gs-revive-count').textContent = n;
      this.el('gs-revive-count-ring').style.setProperty('--p', (pct * 100) + '%');
    }

    /* ---------- 结算 ---------- */
    showResult(data) {
      this.resultEl.classList.remove('gs-hidden');
      this.el('gs-result-score').textContent = U.fmt(data.score);
      this.el('gs-result-coins').textContent = U.fmt(data.coins);
      this.el('gs-result-kills').textContent = U.fmt(data.kills);
      this.el('gs-result-lucky').textContent = U.fmt(data.lucky);
      this.el('gs-result-best-num').textContent = U.fmt(data.best);
    }
    hideResult() { this.resultEl.classList.add('gs-hidden'); }

    /* ---------- Toast（normal 模式 / 强提示） ---------- */
    toast(msg, type) {
      const el = this.toastEl;
      el.textContent = msg;
      el.className = type || '';
      el.classList.remove('gs-hidden');
      clearTimeout(this._toastTimer);
      this._toastTimer = setTimeout(() => el.classList.add('gs-hidden'), 2000);
    }

    /* ---------- 交互详情弹窗（debug 模式） ---------- */
    showDialog(info, mode) {
      // mode: view=查看类（normal 降级 toast） / error=异常（双模式保留）
      const isDebug = GS.CFG.uiMode === 'debug';
      if (!isDebug && mode === 'view') { this.toast(info.action + ' 成功', 'success'); return; }
      if (!isDebug && mode !== 'error') { this.toast(info.action + (info.ok ? ' 成功' : ' 失败'), info.ok ? 'success' : 'error'); return; }
      const body = this.el('gs-dialog-body');
      body.textContent =
        '触发动作：' + info.action + '\n' +
        '时间：' + U.nowStr() + '\n' +
        '接口地址：' + (info.url || '-') + '\n' +
        'HTTP 方法：' + (info.method || '-') + '\n' +
        '请求参数：' + (info.req || '-') + '\n' +
        '返回结果：' + (info.res || '-') + '\n' +
        '错误信息：' + (info.err || '-') + '\n' +
        '耗时：' + (info.ms != null ? info.ms + 'ms' : '-') + '\n' +
        '当前状态：' + (info.ok ? '成功' : '失败');
      this.dlgEl.classList.remove('gs-hidden');
      this._dlgInfo = info;
      clearTimeout(this._dlgTimer);
      if (mode !== 'error') this._dlgTimer = setTimeout(() => this.hideDialog(), 3000);
    }
    hideDialog() { this.dlgEl.classList.add('gs-hidden'); }

    /* 带交互记录的 fetch 包装（双模式） */
    async trackFetch(action, url, opts) {
      const t0 = performance.now();
      let info = { action, url, method: (opts && opts.method) || 'GET', req: opts && opts.body ? opts.body : '-' };
      try {
        const res = await fetch(url, opts);
        const text = await res.text();
        info.ms = Math.round(performance.now() - t0);
        info.res = text.slice(0, 400);
        info.ok = res.ok;
        if (!res.ok) info.err = 'HTTP ' + res.status;
        this.showDialog(info, res.ok ? 'view' : 'error');
        return res.ok ? JSON.parse(text) : null;
      } catch (e) {
        info.ms = Math.round(performance.now() - t0);
        info.ok = false;
        info.err = String(e && e.message || e);
        this.showDialog(info, 'error');
        return null;
      }
    }
  }

  GS.UI = UI;
  GS.itemSvg = itemSvg;
})();