/**
 * 节拍行者（rhythm）无头试玩测试 —— docs/design/13-playtest-criteria.md §4 + §7。
 *
 * 方法：mock 浏览器/WebAudio 最小接口（window/document/navigator/localStorage/
 * fetch/AudioContext），加载**真实** engine（audio.js/settings.js/haptics.js）
 * 与 game.js；手势直接注入 game.onGesture（任务书允许的更稳路径）；虚拟时钟
 * 驱动 setTimeout/setInterval/performance.now/ctx.currentTime，voice 链由引擎
 * 真实 SoundTouch 结束定时器推进，零真实等待。
 *
 * 运行（仓库根）：tools/node/bin/node web/rhythm/test/playtest.mjs
 */
import { readFileSync, existsSync } from 'node:fs';

// ================= 虚拟时钟 =================
let nowMs = 0;
let timerSeq = 1;
const timers = new Map(); // id -> { t, fn, iv }

globalThis.setTimeout = (fn, ms = 0, ...args) => {
  const id = timerSeq++;
  timers.set(id, { t: nowMs + Math.max(0, ms), fn: () => fn(...args), iv: 0 });
  return id;
};
globalThis.setInterval = (fn, ms = 1) => {
  const id = timerSeq++;
  timers.set(id, { t: nowMs + ms, fn, iv: ms });
  return id;
};
globalThis.clearTimeout = (id) => timers.delete(id);
globalThis.clearInterval = (id) => timers.delete(id);
Object.defineProperty(globalThis, 'performance', { value: { now: () => nowMs }, configurable: true });

async function flush() {
  for (let i = 0; i < 4; i++) await new Promise((r) => setImmediate(r));
}
/** 推进虚拟时钟 ms 毫秒，沿途触发到期的 timeout/interval 并冲刷微任务。 */
async function advance(ms) {
  const target = nowMs + ms;
  for (;;) {
    await flush();
    let nid = -1; let nt = Infinity;
    for (const [id, t] of timers) if (t.t < nt) { nt = t.t; nid = id; }
    if (nid < 0 || nt > target) break;
    const timer = timers.get(nid);
    nowMs = nt;
    if (timer.iv) timer.t = nt + timer.iv; else timers.delete(nid);
    timer.fn();
  }
  nowMs = target;
  await flush();
}
const nowSec = () => nowMs / 1000;
async function runUntil(tSec) { await advance(Math.max(0, tSec * 1000 - nowMs)); }
async function waitFor(cond, label, maxMs = 40000) {
  let t = 0;
  while (!cond()) {
    if (t >= maxMs) throw new Error('waitFor 超时: ' + label);
    await advance(100); t += 100;
  }
}

// ================= 浏览器环境 mock =================
const store = new Map();
globalThis.localStorage = {
  getItem: (k) => (store.has(k) ? store.get(k) : null),
  setItem: (k, v) => store.set(k, String(v)),
  removeItem: (k) => store.delete(k),
  clear: () => store.clear(),
};

const vibLog = []; // navigator.vibrate 调用记录（震型数组）
Object.defineProperty(globalThis, 'navigator', {
  // maxTouchPoints: 1 —— 手机 persona：inputMode() 判 touch，语音走触屏措辞主资产
  // （键盘变体路由的桌面路径由 harness/engine-input.test.mjs K9 专测）
  value: { maxTouchPoints: 1, vibrate: (p) => { vibLog.push(p); return true; } },
  configurable: true,
});

const mkEl = () => ({
  id: '', className: '', textContent: '', src: '', alt: '', offsetWidth: 0,
  style: { setProperty() {} },
  appendChild() {}, remove() {}, addEventListener() {},
});
globalThis.document = {
  createElement: mkEl, getElementById: () => null, body: mkEl(),
};
globalThis.window = {
  addEventListener() {}, location: { href: '' }, AudioContext: null, // 下方填充
};

// ================= Web Audio mock =================
const VOICE_DUR = 1.2; // 假 voice 时长（秒），短时长让虚拟时钟跑得快
const BGM_DUR = 64;
const SFX_DUR = 0.3;
const durFor = (url) => (url.includes('/voice/') ? VOICE_DUR : url.includes('/bgm/') ? BGM_DUR : SFX_DUR);

const srcLog = []; // BufferSource.start 记录 { url, when, offset }
class MockParam {
  constructor(v = 0) { this.value = v; }
  cancelScheduledValues() {}
  setValueAtTime(v) { this.value = v; }
  linearRampToValueAtTime(v) { this.value = v; }
}
class MockAudioContext {
  constructor() { this.state = 'suspended'; this.destination = {}; this.sampleRate = 44100; }
  get currentTime() { return nowSec(); }
  async resume() { this.state = 'running'; }
  createGain() { return { gain: new MockParam(1), connect() {}, disconnect() {} }; }
  createDynamicsCompressor() {
    return { threshold: new MockParam(), ratio: new MockParam(), attack: new MockParam(), release: new MockParam(), connect() {} };
  }
  createBufferSource() {
    return {
      buffer: null, loop: false, onended: null,
      connect() {}, disconnect() {},
      start(when = 0, offset = 0) { srcLog.push({ url: this.buffer?.__url ?? null, when, offset, at: nowMs }); },
      stop() {},
    };
  }
  createScriptProcessor() { return { connect() {}, disconnect() {}, onaudioprocess: null }; }
  async decodeAudioData(raw) { return { duration: durFor(raw.__url || ''), __url: raw.__url }; }
}
window.AudioContext = MockAudioContext;

// ================= fetch mock（资产存在性由末尾 fs 校验单独保证） =================
const fetchLog = [];
const blocked = []; // 子串命中即 404（看门狗测试用）
globalThis.fetch = async (url, _opts) => {
  fetchLog.push(url);
  if (typeof url === 'string' && url.startsWith('/api/')) return { ok: true, json: async () => ({}) };
  if (blocked.some((b) => String(url).includes(b))) return { ok: false, status: 404 };
  return { ok: true, arrayBuffer: async () => ({ __url: url }) };
};

// ================= 断言框架 =================
let passed = 0; let failed = 0;
function assert(cond, msg) {
  if (cond) { passed++; console.log('  ✓', msg); } else { failed++; console.error('  ✗ 失败:', msg); }
}
const uncaught = [];
process.on('uncaughtException', (e) => { uncaught.push(e); process.exitCode = 1; origConsoleError('UNCAUGHT', e); });
process.on('unhandledRejection', (e) => { uncaught.push(e); process.exitCode = 1; origConsoleError('UNHANDLED', e); });
const origConsoleError = console.error.bind(console);
let consoleErrors = 0;
console.error = (...a) => { consoleErrors++; origConsoleError(...a); };

// ================= 加载真实引擎与游戏 =================
const { WebAudioEngine } = await import('../../engine/audio.js');
const { settings } = await import('../../engine/settings.js');
const { RhythmGame } = await import('../game.js');

const PROGRESS_KEY = 'soundgame.rhythm.progress';
let audio = null; let game = null; let playLog = []; let gestures = 0;

async function newWorld(progress = null) {
  store.clear();
  if (progress) store.set(PROGRESS_KEY, JSON.stringify(progress));
  settings.set({ guide: 'off', voice: 'female', speed: 1.0, bgm: 1.0 });
  nowMs = 0; timers.clear(); vibLog.length = 0; srcLog.length = 0; fetchLog.length = 0; blocked.length = 0;
  audio = new WebAudioEngine('audio/');
  playLog = [];
  const origPlay = audio.play.bind(audio);
  audio.play = (id, opts = {}) => { playLog.push({ id, t: nowMs }); return origPlay(id, opts); };
  await audio.unlock();
  game = new RhythmGame(audio, mkEl());
  if (process.env.DEBUG) {
    for (const m of ['_beginTutorial', '_tutLead', '_tutEvaluate', '_startSong', '_finish', '_enterSelect', '_openMenu', '_closeMenu']) {
      const orig = game[m].bind(game);
      game[m] = (...a) => { console.log(`  [trace ${nowMs}ms] ${m} tutIdx=${game._tutIdx} fails=${game._tutFails} phase=${game.phase}`); return orig(...a); };
    }
  }
  gestures = 0;
  return game;
}
function G(g) { gestures++; game.onGesture(g); }
// voice 链断言用 playLog（play 调用顺序即播报顺序；fetchLog 会被 prewarm 预取污染）
const voicePlays = () => playLog.filter((p) => p.id.startsWith('voice/')).map((p) => p.id);
const lastVoice = () => { const v = voicePlays(); return v[v.length - 1] || ''; };
const voicePlayed = (id) => voicePlays().includes(id);

// 按 cue 期望时刻注入应答；模拟真实识别延迟（immediateTap：tap 按下即达 +0；
// 滑动识别在 touchend +0.15 = SWIPE_DELAY；双击 +0.20 = DOUBLE_DELAY）——
// game.js 判定补偿回到触摸时刻后 dt≈0（§13 替换口径）。
// 双击前先注入序曲 tap——immediateTap 的真实行为（第一下按下即发 tap），
// 否则游戏的旧引擎闩锁（双击前 350ms 无 tap = 旧引擎）会把测试误判成旧引擎
async function answerCue(cue) {
  if (cue.judged) return;
  const lag = cue.gesture === 'tap' ? 0 : cue.gesture === 'doubletap' ? 0.20 : 0.15;
  await runUntil(cue.expected + lag);
  if (cue.gesture === 'doubletap') G('tap'); // 序曲 tap（附近无 0.35s 内未判定 tap 音符，出声不判定）
  G(cue.gesture);
  await flush();
}

// ================= 场景 A：首局关键路径（教学→曲目一 S→解锁→结算 BGM→重开→下一首） =================
console.log('\n[场景 A] 首局：教学 T1-T3 → 曲目一全 Perfect → S 级解锁 → 结算');
await newWorld();
assert(game.phase === 'idle', '初始 phase idle');
game.start();
await flush();
assert(game.phase === 'intro', 'start 后进 intro');
assert(voicePlayed('voice/welcome'), 'welcome 旁白开始播放');

// —— 旁白跳过①：intro 阶段 voice 播放中单击 = skipVoice（immediateTap 下延迟
// 500ms 裁决——防序曲 tap；advance 后链推进到 tut_1，不重头）——
assert(!!audio._voice, 'welcome 播放中（voice token 存在）');
G('tap'); // 单击跳过 welcome
await advance(600);
assert(lastVoice() === 'voice/tut_1', '单击跳过 welcome → 链推进到 tut_1');

// —— 教学 5 步（§13：单击 → 左右 → 上滑 → 下滑 → 三音带双击）：按 cues.expected
// 做手势（识别延迟注入，补偿后 dt≈0）——
for (let step = 0; step < 5; step++) {
  await waitFor(() => game._tutIdx === step && game.phase === 'tut'
    && game._cues.length > 0 && game._tutAttempts.length === 0, `T${step + 1} 领奏排程`);
  assert(game._tutIdx === step, `教学步进 T${step + 1}（_tutIdx=${step}）`);
  const leadNoteCount = srcLog.filter((s) => s.url && s.url.includes('/sfx/inst_')).length;
  if (step === 2) { // 上滑步：先注入序曲 tap（immediateTap 副作用），不得产生尝试记录
    await runUntil(game._cues[0].expected);
    G('tap');
    await flush();
    assert(game._tutAttempts.length === 0, 'T3 序曲 tap 不产生尝试记录（tap 只认领 tap 音符）');
  }
  for (const cue of game._cues) await answerCue(cue);
  assert(game._tutAttempts.every((a) => a.correct && Math.abs(a.dt) <= 0.35), `T${step + 1} 应答全部正确且在 Good 窗口内`);
  if (step === 3) assert(game.phase === 'tut', 'T4 下滑步：临近 down 音符时下滑 = 演奏应答，不跳教学');
  assert(srcLog.filter((s) => s.url && s.url.includes('/sfx/inst_')).length > leadNoteCount, `T${step + 1} 领奏音符已排程播放`);
  await runUntil(game._phaseEnd + 0.2); // 触发 _tutEvaluate
  await flush();
}
assert(game._progress.tutorialDone === true, 'tutorialDone === true');
assert(JSON.parse(store.get(PROGRESS_KEY)).tutorialDone === true, 'localStorage 进度已持久化 tutorialDone');
assert(voicePlayed('voice/tut_done'), 'tut_done 播报');

// —— 曲目一 main：全部 Perfect ——
await waitFor(() => game.phase === 'main' && game._cues.length > 0, '曲目一 main 开始');
assert(game._song.id === 'song1' && game._songIdx === 0, '教学后进入曲目一');
assert(srcLog.some((s) => s.url && s.url.includes('/bgm/track90')), '曲目一 BGM track90 按网格启动');
// —— 旧引擎 tap 补偿（§13 闩锁回退路径）：_immediateTap=false 时回调 -0.30s 判定 ——
const legacyTapCue = game._cues.find((c) => c.gesture === 'tap');
game._immediateTap = false;
await runUntil(legacyTapCue.expected + 0.30);
G('tap');
await flush();
assert(legacyTapCue.result === 'perfect', '旧引擎 tap 补偿：闩锁回退后 expected+0.30s 注入的 tap 仍判 Perfect');
game._immediateTap = true;
for (const cue of game._cues) await answerCue(cue);
assert(game._stats.perfect === game._cues.length, `曲目一 31 个音符全部 Perfect（perfect=${game._stats.perfect}）`);
assert(game._stats.miss === 0 && game._stats.combo === game._cues.length, '无 Miss 且连击不断');

await waitFor(() => game.phase === 'end', '曲目一结算');
assert(game._grade() === 's', '全 Perfect 评级 S');
assert(game._progress.grades.song1 === 's', 'grades.song1 === "s"');
assert(game._progress.unlocked === 2, 'unlocked === 2（B 以上解锁下一首）');
await flush();
assert(voicePlayed('voice/grade_s'), 'grade_s 播报（结算语音链首句）');

// —— 旁白跳过②：结算语音链播放中单击 = 跳下一句（immediateTap 下延迟 500ms
// 裁决生效），不是"再来一遍" ——
await waitFor(() => !!audio._voice, '结算语音链开始');
G('tap');
await advance(600);
assert(game.phase === 'end', '结算播报中单击 = 跳句（phase 保持 end，未误触重开）');
assert(lastVoice() === 'voice/new_best_combo', '单击跳过 grade_s → 链推进到 new_best_combo');

// —— 结算 BGM：语音链播完后淡入 bgm/menu（10 文档 §5）；§13：起播点不早于链末句 ——
await waitFor(() => audio._bgm && audio._bgm.id === 'bgm/menu', '结算语音链播完后 menu pad 淡入');
assert(voicePlayed('voice/unlock_song2'), 'unlock_song2 播报（语音链后段）');
{
  const menuPlayIdx = playLog.findIndex((p) => p.id === 'bgm/menu');
  const restartIdx = playLog.map((p) => p.id).lastIndexOf('voice/restart');
  assert(menuPlayIdx > restartIdx && restartIdx >= 0, '结算 menu pad 在语音链末句之后起播（不骑链尾）');
}

// —— 结算单击 = 同曲再来一遍；menu pad 应被 stopBgm(400) 停掉 ——
G('tap');
await advance(600);
await flush();
assert(game.phase === 'main' && game._songIdx === 0, '结算单击 = 同曲再来一遍');
assert(audio._bgmWanted === null && audio._bgm === null, '选定曲目后 menu pad 停止（stopBgm(400)）');
assert(srcLog.filter((s) => s.url && s.url.includes('/bgm/track90')).length >= 2, '曲目一 BGM 重新按网格启动');

// —— 钩子快进结算 → 右滑 = 下一首（song2 已解锁） ——
game._finish(game._runId);
await flush();
assert(game.phase === 'end', '钩子：曲目一二次结算');
G('right');
await flush();
assert(game.phase === 'main' && game._song.id === 'song2', '结算右滑 = 下一首（song2 进入 main）');
assert(srcLog.some((s) => s.url && s.url.includes('/bgm/track105')), 'song2 BGM track105 启动');

// —— 菜单暂停恢复：下滑呼出（无临近 down 音符）→ 关菜单后时刻平移 + BGM 断点续播 ——
await waitFor(() => game._cues.length > 0 && game._bgmT0 > 0, 'song2 排程就绪');
await runUntil(game._bgmT0 + 1.5); // BGM 已起、首个 cue 尚远（首个 cue ≈ bgmT0+5.6s）
const expBefore = game._cues.map((c) => c.expected);
const bgmT0Before = game._bgmT0;
const phaseEndBefore = game._phaseEnd;
const menuOpenAt = nowMs;
G('down');
await flush();
assert(game.phase === 'menu', '下滑折中：无临近 down 音符时下滑 = 呼出菜单');
assert(!playLog.some((p) => p.id === 'bgm/menu' && p.t >= menuOpenAt), '暂停菜单保持静默（不叠 menu pad，10 文档 §5）');
assert(voicePlayed('voice/menu_main'), '菜单语音 menu_main 播报');
// —— 暂停真冻结（§13，live round1 P1）：菜单期间判定与谱面全停 ——
const missAtMenu = game._stats.miss;
const srcAtMenu = srcLog.length;
await advance(2000); // 菜单停留 2s（menu_main 播完、menu_resume 在播）
assert(game._stats.miss === missAtMenu, '菜单开启 2s：无新 Miss（判定冻结）');
assert(srcLog.length === srcAtMenu, '菜单开启 2s：无新排程音符（谱面冻结）');
G('down'); // 关菜单
await flush();
assert(!audio.isVoicePlaying(), '关菜单即停菜单语音链（菜单语音不骑恢复后的领奏）');
const pauseDur = (nowMs + 100 - menuOpenAt) / 1000; // resumeAt = 关菜单时刻 +0.1
assert(game.phase === 'main', '关菜单恢复 main');
const shift = game._bgmT0 - bgmT0Before;
assert(Math.abs(shift - pauseDur) < 1e-6, `_bgmT0 平移量 = 暂停时长（${shift.toFixed(3)}s ≈ ${pauseDur.toFixed(3)}s）`);
assert(game._cues.every((c, i) => Math.abs(c.expected - expBefore[i] - shift) < 1e-6), '全部 cue.expected 同步平移');
assert(Math.abs(game._phaseEnd - phaseEndBefore - shift) < 1e-6, '_phaseEnd 同步平移');
const lastTrack105 = srcLog.filter((s) => s.url && s.url.includes('/bgm/track105')).pop();
assert(lastTrack105 && lastTrack105.offset > 0, `BGM 断点续播（offset=${lastTrack105 && lastTrack105.offset.toFixed(2)}s > 0）`);

// —— Miss：窗口内做错手势 → 不播该音符的乐器音 + 闷镲 Miss 音 + error 震动 + combo 清零 ——
const missCue = game._cues.find((c) => !c.judged && c.gesture === 'tap');
await runUntil(missCue.expected + 0.1);
const kickPlaysBefore = playLog.filter((p) => p.id === 'sfx/inst_kick').length;
const srcBeforeMiss = srcLog.length;
const vibBefore = vibLog.length;
game._stats.combo = 5; // 制造非零 combo，验证清零
G('left'); // 错手势（该 cue 期望 tap，附近无 left cue）
await flush();
assert(missCue.result === 'miss', '窗口内错手势判 Miss');
assert(playLog.filter((p) => p.id === 'sfx/inst_kick').length === kickPlaysBefore, 'Miss 不播该音符的乐器音（错过=没出声）');
assert(srcLog.slice(srcBeforeMiss).some((s) => s.url && s.url.includes('inst_hat_l')), 'Miss 有闷镲反馈音（inst_hat_l 降调复用，§13）');
assert(vibLog.slice(vibBefore).some((p) => Array.isArray(p) && p[0] === 60), 'Miss 触发 error 震动');
assert(game._stats.combo === 0, 'Miss 后 combo 清零');

// —— 下滑折中②：临近 down 应答音符时下滑 = 演奏判定，不开菜单 ——
for (const cue of game._cues) { // 把 down cue 之前的未判定音符应答掉
  if (cue.judged || cue.gesture === 'down') continue;
  await answerCue(cue);
  if (game._cues.some((c) => c.gesture === 'down' && !c.judged && c.expected - nowSec() < 4)) break;
}
const downCue = game._cues.find((c) => !c.judged && c.gesture === 'down');
assert(!!downCue, '找到 song2 的 down 应答音符');
await runUntil(downCue.expected + 0.15); // 真实滑动识别延迟 +0.15s（补偿后 dt≈0）
G('down');
await flush();
assert(downCue.result === 'perfect', '临近 down 音符时下滑 = 演奏判定（Perfect）');
assert(game.phase === 'main', '演奏判定后不开菜单（phase 保持 main）');
assert(playLog.some((p) => p.id === 'sfx/inst_tom_lo'), 'down 命中播放 inst_tom_lo');

// —— 下滑折中③（§13，live round1 P0）：慢滑（识别 +0.35s）踩点下滑仍判演奏 ——
const downCue2 = game._cues.find((c) => !c.judged && c.gesture === 'down');
assert(!!downCue2, '找到 song2 的第二个 down 应答音符');
await runUntil(downCue2.expected + 0.35);
G('down');
await flush();
assert(downCue2.result === 'good', '慢滑（识别 +0.35s）踩点下滑判 Good，不弹菜单');
assert(game.phase === 'main', '慢滑下滑后 phase 保持 main（未开菜单）');

// —— 长按定义（§13，live round1 P0）：Miss 反馈音 + error 震动，不判定不归属 ——
const judgedBeforeLp = game._cues.filter((c) => c.judged).length;
const srcBeforeLp = srcLog.length;
const vibBeforeLp = vibLog.length;
G('longpress');
await flush();
assert(game._cues.filter((c) => c.judged).length === judgedBeforeLp, '长按不判定任何音符');
assert(srcLog.slice(srcBeforeLp).some((s) => s.url && s.url.includes('inst_hat_l')), '长按播 Miss 反馈音（死输入给定义）');
assert(vibLog.slice(vibBeforeLp).some((p) => Array.isArray(p) && p[0] === 60), '长按触发 error 震动');
G('longpressend');
await flush();

// —— 结算末位：song3 结算页右滑 → 播 restart，不播 song_locked（round3-4 裁定①回归） ——
game._startSong(game._runId, 2);
game._finish(game._runId);
await flush();
assert(game.phase === 'end' && game._songIdx === 2, '钩子：song3 结算页');
const playMark = playLog.length;
G('right');
await flush();
const newVoices = playLog.slice(playMark).map((p) => p.id);
assert(newVoices.includes('voice/restart'), '末位曲目右滑 → 播 voice/restart');
assert(!newVoices.includes('voice/song_locked'), '末位曲目右滑 → 不播 song_locked');

// —— 回大厅（§13，live round1 P1）：确认语音 + leaving 收尾态 + 真实跳转 ——
G('down');
await flush();
assert(game.phase === 'leaving', '结算屏下滑进入 leaving（收尾态，不再受理手势）');
assert(voicePlayed('voice/menu_lobby'), '回大厅前播确认语音 menu_lobby');
await waitFor(() => window.location.href === '../', '确认语音后跳转大厅');

assert(gestures <= 200, `手势预算内（${gestures} ≤ 200）`);

// ================= 场景 B：二周目选曲界面（menu pad + 选曲播报跳过 + 负偏移保护） =================
console.log('\n[场景 B] 二周目：选曲界面 menu pad / 播报跳过 / 锁定曲 / 暂停负偏移保护');
await newWorld({ tutorialDone: true, unlocked: 1, grades: {}, bestCombo: 0 });
game.start();
await flush();
assert(lastVoice() === 'voice/welcome_back', '二周目播 welcome_back（缩减开场）');
await waitFor(() => game.phase === 'select', '进入选曲界面');
assert(audio._bgm && audio._bgm.id === 'bgm/menu', '选曲界面播放 bgm/menu（10 文档 §5）');

await waitFor(() => !!audio._voice, 'select_hint 播报中');
G('tap'); // 跳过 select_hint → song1_name（immediateTap 下延迟 500ms 裁决）
await advance(600);
assert(game.phase === 'select' && lastVoice() === 'voice/song1_name', '选曲播报单击 = 跳下一句（phase 保持 select）');
G('right'); // 切到 song2（未解锁）
await advance(600); // 序曲 tap 裁决窗：右滑不得误触发"选定曲目"
assert(game.phase === 'select', '选曲右滑的序曲 tap 被作废（phase 保持 select，未误选）');
assert(game._songIdx === 1 && lastVoice() === 'voice/song_locked', '右滑切到未解锁曲目 → song_locked');
G('tap'); // 跳过 song_locked
await advance(600);
assert(game.phase === 'select', 'song_locked 可跳过且不离开选曲');
G('tap'); // 序曲 tap（模拟 immediateTap 副作用：左滑的触摸起点）
G('left'); // 随后滑动到达 → 序曲 tap 应被作废
await advance(600);
assert(game.phase === 'select' && game._songIdx === 0, '序曲 tap 被随后滑动作废；左滑正常切回 song1');
await waitFor(() => !audio._voice, '选曲播报播完');
G('tap'); // 无语音时单击 = 确认选曲
await advance(600);
await flush();
assert(game.phase === 'main' && game._song.id === 'song1', '无语音时单击 = 选定曲目进 main');
assert(audio._bgmWanted === null && audio._bgm === null, '进曲目后 menu pad 停止');

// 负偏移保护：BGM 起点（now+1.0）前开菜单，恢复时 offset 不得为负（真实环境负 offset 会抛异常）
await waitFor(() => game._cues.length > 0 && game._bgmT0 > 0, 'song1 排程就绪');
G('down');
await flush();
assert(game.phase === 'menu', 'BGM 起点前开菜单');
await advance(1500);
G('down');
await flush();
const restarted = srcLog.filter((s) => s.url && s.url.includes('/bgm/track90')).pop();
assert(game.phase === 'main' && restarted && restarted.offset >= 0, `断点续播 offset 非负（${restarted && restarted.offset}）——负偏移保护生效`);

// ================= 场景 C：教学失败 2 次 → retry_skip 跳过该步 =================
console.log('\n[场景 C] 教学失败重教 → 2 次失败跳过该步 → 下滑跳教学');
await newWorld();
game.start();
await flush();
G('tap'); // 跳 welcome（immediateTap 下延迟 500ms 裁决）
await advance(600);
await waitFor(() => game.phase === 'tut' && game._cues.length > 0, 'T1 领奏');
// 失败①：做错手势
await runUntil(game._cues[0].expected + 0.3);
G('left'); // T1 期望 tap
await runUntil(game._phaseEnd + 0.2);
await flush();
assert(game._tutFails === 1 && lastVoice() === 'voice/retry_gesture', '失败 1 次 → retry_gesture 纠正重教');
await waitFor(() => game._tutAttempts.length === 0 && game._cues.length > 0 && game.phase === 'tut', 'T1 重新领奏');
// 失败②：完全不出手
await runUntil(game._phaseEnd + 0.2);
await flush();
assert(game._tutFails === 2, '同一步失败 2 次');
assert(voicePlayed('voice/retry_skip'), '播 retry_skip，跳过该步不卡死');
await waitFor(() => game._tutIdx === 1 && game.phase === 'tut' && game._cues.length > 0, '进入 T2');
assert(true, '流程推进到 T2');
// 下滑 = 跳过整个教学
G('down');
await flush();
assert(voicePlayed('voice/tut_skip'), '下滑跳教学播 tut_skip');
await waitFor(() => game.phase === 'main', '跳教学后进入曲目一');
assert(game._progress.tutorialDone === true, '跳教学同样持久化 tutorialDone');

// ================= 场景 C2：教学全程零通过 → 收尾播中性句不夸"很好"（§13） =================
console.log('\n[场景 C2] 教学 5 步全部失败跳过 → retry_skip 收尾，不播 tut_done');
await newWorld();
game.start();
await flush();
G('tap'); // 跳 welcome
await advance(600);
for (let step = 0; step < 5; step++) {
  await waitFor(() => game._tutIdx === step && game.phase === 'tut' && game._cues.length > 0, `C2 T${step + 1} 领奏`);
  const leadMark = game._cues[0].expected;
  await runUntil(game._phaseEnd + 0.2); // 失败①：完全不出手
  await flush();
  // 零尝试时 attempts 恒为空——必须等"重教的新领奏"（cues 预期时刻刷新），
  // 否则条件瞬间为真、下一步 runUntil(Infinity) 直接跑完整个教学
  await waitFor(() => game._tutFails === 1 && game._cues.length > 0
    && game._cues[0].expected !== leadMark && game.phase === 'tut', `C2 T${step + 1} 重教`);
  await runUntil(game._phaseEnd + 0.2); // 失败②：完全不出手 → 跳过该步
  await flush();
}
await waitFor(() => game.phase === 'main', 'C2 零通过后进入曲目一');
assert(game._tutPassedAny === false, 'C2 全程零通过（_tutPassedAny === false）');
assert(voicePlayed('voice/retry_skip'), 'C2 零通过收尾播 retry_skip（中性句）');
assert(!voicePlayed('voice/tut_done'), 'C2 零通过不播 tut_done（不夸"很好"）');

// ================= 场景 C3：滞留语音链看门狗作废（§13，live 实测深修回归） =================
console.log('\n[场景 C3] 教学纠正链被跳教学顶掉后，滞留看门狗不得把游戏拖回 tut');
await newWorld();
game.start();
await flush();
G('tap'); // 跳 welcome
await advance(600);
await waitFor(() => game.phase === 'tut' && game._cues.length > 0, 'C3 T1 领奏');
await runUntil(game._phaseEnd + 0.2); // 失败①：不出手 → 纠正链 [retry_listen, retry_listen]
await flush();
assert(game._tutFails === 1 && audio.isVoicePlaying(), 'C3 纠正链在播（fail=1）');
G('down'); // 下滑跳教学：tut_skip 链顶掉纠正链（其看门狗 10s 后到期）
await flush();
assert(voicePlayed('voice/tut_skip'), 'C3 下滑跳教学播 tut_skip');
await waitFor(() => game.phase === 'main', 'C3 跳教学后进入曲目一');
await advance(12000); // 越过滞留看门狗的 10s 窗口
assert(game.phase === 'main', 'C3 滞留看门狗已作废：12s 后仍在 main（未被拖回 tut）');

// ================= 场景 D：语音资产缺失 → 看门狗推进，不卡死不崩 =================
console.log('\n[场景 D] 看门狗：屏蔽 welcome 资产');
await newWorld();
blocked.push('/welcome.');
const errBefore = consoleErrors;
game.start();
await flush();
await waitFor(() => game.phase === 'tut' && game._cues.length > 0, 'welcome 缺失时看门狗 8s 推进到 T1 领奏');
assert(consoleErrors > errBefore, '缺失资产仅 console.error');
assert(game.phase === 'tut', 'welcome 缺失不卡死（看门狗触发进教学）');

// ================= 场景 E：全局通用断言（§7 摘取引擎可测项） =================
console.log('\n[场景 E] 全局：解锁前静默 / 设置边界');
{
  const locked = new WebAudioEngine('audio/');
  const fetchMark = fetchLog.length;
  locked.play('voice/tut_1');
  await flush();
  assert(fetchLog.length === fetchMark, '音频解锁前 play 静默跳过（§7.1）');
}
await newWorld();
settings.set({ voice: 'male' });
audio.play('voice/rules');
await flush();
assert(fetchLog.some((u) => String(u).includes('/voice/male/rules.')), 'settings.voice=male 后按男性目录解析（§7.3）');
settings.set({ speed: 1.7 });
audio.play('voice/rules');
await flush();
assert(audio._voice && audio._voice.st.tempo === 1.7, 'settings.speed=1.7 时下一句 tempo=1.7（SoundTouch 不变调）');
settings.set({ voice: 'female', speed: 1.0 });
const bgmFetchMark = fetchLog.length;
settings.set({ bgm: 0 });
audio.play('bgm/menu');
await flush();
assert(!fetchLog.slice(bgmFetchMark).some((u) => String(u).includes('/bgm/menu')), 'bgm=0 时 BGM 不加载（§7.3）');
assert(audio._bgm === null && audio._bgmWanted && audio._bgmWanted.id === 'bgm/menu', 'bgm=0 只记"想播"意图');
settings.set({ bgm: 1.0 });
await flush();
assert(audio._bgm && audio._bgm.id === 'bgm/menu', 'bgm 调回非 0 自动补播最后状态 BGM');

// ================= 场景 F：live round2 判定治理（序曲 tap 撤销 / 超时复活 / 下滑不弹菜单 / 菜单去抖） =================
console.log('\n[场景 F] live round2：tapcancel 撤销 / 超时 Miss 复活 / 正片下滑不弹菜单 / 菜单去抖独占');
// —— F3 教学：tapcancel 撤销序曲 tap 尝试记录（转滑动/长按的序曲不算出手）——
await newWorld();
game.start();
await flush();
G('tap'); // 跳 welcome（延迟 500ms 裁决）
await advance(600);
await waitFor(() => game.phase === 'tut' && game._cues.length > 0, 'F3 T1 领奏');
await runUntil(game._cues[0].expected);
G('tap'); // 序曲 tap（T1 是 tap 音符，先记尝试）
await flush();
assert(game._tutAttempts.length === 1, 'F3 序曲 tap 先记教学尝试');
G('tapcancel'); // 引擎补发：本次按下转滑动/长按 → 序曲 tap 作废
await flush();
assert(game._tutAttempts.length === 0, 'F3 tapcancel 撤销教学尝试记录（live round2 P0）');

// —— 正片判定治理：钩子直进 song2（105BPM，含 3 个 down 音符）——
await newWorld({ tutorialDone: true, unlocked: 3, grades: {}, bestCombo: 0 });
game.start();
await flush();
await waitFor(() => game.phase === 'select', 'F 进入选曲');
game._startSong(game._runId, 1);
await flush();
await waitFor(() => game.phase === 'main' && game._cues.length > 0, 'F song2 排程就绪');

// —— F1 tapcancel 撤销序曲 tap 命中（声音已出收不回，判定必须撤销）——
const fTapCue = game._cues.find((c) => c.gesture === 'tap');
await runUntil(fTapCue.expected);
G('tap');
await flush();
assert(fTapCue.result === 'perfect', 'F1 序曲 tap 先按 tap 音符判定（Perfect）');
assert(game._tapJudg.length === 1, 'F1 序曲 tap 判定已记账');
G('tapcancel'); // 引擎补发：转滑动/长按 → 序曲 tap 作废
await flush();
assert(fTapCue.judged === false && fTapCue.result === null, 'F1 tapcancel 撤销序曲 tap 判定（音符回到未判定，不计 Miss）');
assert(game._stats.perfect === 0 && game._stats.combo === 0, 'F1 命中统计回滚（perfect/combo 归零）');
await runUntil(fTapCue.expected + 0.2);
G('tap'); // 重新接打（撤销不是免判）
await flush();
assert(fTapCue.result === 'good', 'F1 撤销后重新接打 → Good');

// —— F2 双击序曲治理（tap+tap+doubletap 序列的判定归属）——
const fDblCue = game._cues.find((c) => !c.judged && c.gesture === 'doubletap'); // phrase2 beat2
await runUntil(fDblCue.expected - 0.2);
G('tap'); // 序曲 tap1（双击第一下按下，自由演奏）
await flush();
await advance(200);
G('tap'); // 序曲 tap2（双击第二下按下）
await flush();
await advance(250);
const fMiss2 = game._stats.miss;
G('doubletap'); // 双击改判到达（识别在第二次 touchend）
await flush();
assert(fDblCue.result === 'perfect', 'F2 双击改判 Perfect（序曲 tap 撤销后判定）');
assert(game._stats.miss === fMiss2, 'F2 序曲 tap 不产生 Miss（爆音不进判定链）');
assert(fTapCue.result === 'good', 'F2 双击撤销窗不误伤更早的真实 tap 命中');
assert(game._tapJudg.length === 1, 'F2 两笔序曲 tap 账已撤销（账簿只剩真实命中）');

// —— F2c 序曲 tap 误认领命中 → 双击到达时撤销；撤销后真不接 → 超时 Miss 兜底 ——
const fTapCue2 = game._cues.find((c) => !c.judged && c.gesture === 'tap'); // phrase2 beat3
await runUntil(fTapCue2.expected);
G('tap'); // 序曲 tap1 误认领（其实是双击第一下）
await flush();
assert(fTapCue2.result === 'perfect', 'F2c 序曲 tap 先认领命中');
const fPerf2c = game._stats.perfect;
await advance(200);
G('tap'); // 序曲 tap2（自由演奏）
await flush();
await advance(250);
G('doubletap'); // 双击改判 → 两笔序曲判定一并撤销（本次双击附近无 doubletap 音符，自由演奏）
await flush();
assert(fTapCue2.judged === false && fTapCue2.result === null, 'F2c 双击到达撤销序曲 tap 误认领的命中');
assert(game._stats.perfect === fPerf2c - 1, 'F2c Perfect 统计回滚');
await runUntil(fTapCue2.expected + 0.55); // 越过 tap 超时死线（+0.45）
await flush();
assert(fTapCue2.result === 'miss', 'F2c 撤销后真不接 → 超时 Miss 兜底（撤销不是免死）');

// —— F4 超时 Miss 复活：识别延迟把音符拖死、手势还在路上（live round2 事件流实证）——
const fUpCue = game._cues.find((c) => !c.judged && c.gesture === 'up'); // phrase3 beat1
await runUntil(fUpCue.expected + 0.64); // 超时死线 +0.60 已过：泵先判 Miss（滑动回调尚未到达）
await flush();
assert(fUpCue.result === 'miss' && fUpCue.missKind === 'timeout', 'F4 上滑音符先被超时拖死（事件流同款时序）');
const fMiss4 = game._stats.miss;
G('up'); // 慢滑回调此刻才到（触摸 expected+0.49、触程 0.15）
await flush();
assert(fUpCue.result === 'good', 'F4 超时误判复活改判 Good（补偿 dt=+0.49 ≤ REVIVE_DT_S）');
assert(game._stats.miss === fMiss4 - 1, 'F4 复活回滚 Miss 统计');

// —— F5 正片踩点下滑不弹菜单（live round2 P1 续修：超时拖死 ≠ 无临近 down 音符）——
const fDownCue = game._cues.find((c) => !c.judged && c.gesture === 'down'); // phrase3 beat3
await runUntil(fDownCue.expected + 0.64); // 死线 +0.60 已过，下滑回调 +0.64 才到（round2 实测差 2~114ms）
await flush();
assert(fDownCue.result === 'miss' && fDownCue.missKind === 'timeout', 'F5 down 音符先被超时拖死');
const fTomMark = playLog.length;
G('down');
await flush();
assert(game.phase === 'main', 'F5 正片踩点下滑不弹菜单（live round2 P1 续修）');
assert(fDownCue.result === 'good', 'F5 下滑复活改判 Good');
assert(playLog.slice(fTomMark).some((p) => p.id === 'sfx/inst_tom_lo'), 'F5 下滑复活播放 inst_tom_lo');

// —— F5b 窗口内晚下滑（超复活时差上限）：不弹菜单、Miss 维持、tom_lo 自由演奏 ——
const fDownCue2 = game._cues.find((c) => !c.judged && c.gesture === 'down'); // phrase7 beat3
await runUntil(fDownCue2.expected + 1.1); // 死线过 ~0.5s（账龄仍在 REVIVE_WINDOW_S 内），dt 超 REVIVE_DT_S
await flush();
assert(fDownCue2.result === 'miss', 'F5b down 音符先被超时拖死');
const fTomMark2 = playLog.length;
G('down');
await flush();
assert(game.phase === 'main', 'F5b 窗口内晚下滑仍不弹菜单（瞄准 down 音符证据明确）');
assert(fDownCue2.result === 'miss', 'F5b 超复活时差上限，Miss 维持不复活');
assert(playLog.slice(fTomMark2).some((p) => p.id === 'sfx/inst_tom_lo'), 'F5b tom_lo 自由演奏出声');

// —— F5c 窗口过后下滑正常呼出菜单（折中不破）——
await advance(300); // downCue2 的 Miss 账龄 > REVIVE_WINDOW_S
G('down');
await flush();
assert(game.phase === 'menu', 'F5c 窗口过后下滑正常呼出菜单');

// —— F6 菜单去抖独占期（live round2 P1 瞬穿）：开菜单 1s 内手势不穿透 ——
assert(audio.isVoicePlaying(), 'F6 菜单语音 menu_main 在播');
G('doubletap'); // 开菜单 <1s：路上手势（双击）不得穿透菜单确认
await flush();
assert(game.phase === 'menu', 'F6 去抖期内双击不穿透菜单（phase 保持 menu）');
assert(audio.isVoicePlaying(), 'F6 去抖期内菜单语音不被掐断');
G('down'); // 去抖期内下滑也不得关菜单
await flush();
assert(game.phase === 'menu', 'F6 去抖期内下滑不穿透菜单');
await advance(1100); // 越过 1s 去抖独占期
G('doubletap'); // 双击确认"继续演奏"
await flush();
assert(game.phase === 'main', 'F6 去抖期后双击正常确认（恢复演奏）');

// ================= 资产引用校验（fs：ogg+m4a 双格式零缺失） =================
console.log('\n[资产校验] game.js 引用的 id 对照 audio/ 目录');
{
  const src = readFileSync(new URL('../game.js', import.meta.url), 'utf8');
  const ids = new Set();
  for (const m of src.matchAll(/['"`]((?:voice|sfx|bgm)\/[a-z0-9_]+)['"`]/g)) ids.add(m[1]);
  if (src.includes('voice/grade_${grade}')) for (const g of ['s', 'a', 'b', 'c']) ids.add(`voice/grade_${g}`);
  const missing = [];
  const has = (p) => existsSync(new URL(p, import.meta.url));
  for (const id of ids) {
    const [layer, name] = id.split('/');
    if (layer === 'voice') {
      const dual = ['male', 'female'].every((g) => has(`../audio/voice/${g}/${name}.ogg`) && has(`../audio/voice/${g}/${name}.m4a`));
      const flat = has(`../audio/voice/${name}.ogg`) && has(`../audio/voice/${name}.m4a`);
      if (!dual && !flat) missing.push(id + '（voice 需双性别或平铺 ogg+m4a）');
    } else if (!has(`../audio/${layer}/${name}.ogg`) || !has(`../audio/${layer}/${name}.m4a`)) {
      missing.push(id + '（缺 ogg 或 m4a）');
    }
  }
  console.log(`  共引用 ${ids.size} 个资产 id`);
  assert(missing.length === 0, `资产零缺失${missing.length ? '——缺失: ' + missing.join(', ') : ''}`);
}

// ================= 汇总 =================
console.log('\n========== 汇总 ==========');
assert(uncaught.length === 0, `全程无未捕获异常（§7.2）${uncaught.length ? '——' + uncaught.map(String).join('; ') : ''}`);
console.log(`通过 ${passed} 项，失败 ${failed} 项`);
process.exit(failed > 0 ? 1 : 0);