DDD1988

---
name: qq-music-web
description: "Control QQ Music playback in any browser that exposes a DevTools/CDP endpoint. Supports play/pause/next/prev, search songs/artists/albums, play liked songs, random play, like/unlike, playlist management (list/create/add-to), and browser-target discovery across platforms."
metadata:
  openclaw:
    emoji: "🎵"
---

# QQ Music Control

Use this skill to control QQ Music (y.qq.com) through a browser DevTools/CDP endpoint.

## What it supports

- Cross-platform: Windows, macOS, Linux
- Cross-browser: Chrome, Chromium, Edge, Brave, Arc, or any browser exposing a DevTools/CDP endpoint
- Transport: play, pause, toggle, next, previous
- Search & play: songs, artists, albums
- Liked songs: play all, play random, like/unlike current track
- Playlists: list created playlists, create new playlists, add current song to a playlist, play a playlist by ID
- Mode control: list loop, single loop, shuffle, sequential
- Status: current track, artist, time, play state
- Screenshot capture

## Requirements

- **Node.js 18+** (uses built-in `fetch` and `WebSocket`)
- A Chromium-based browser with remote debugging enabled (see setup below)
- A QQ Music account logged in at `y.qq.com` (needed for liked songs, playlists, and like/unlike)

## Setup guide

The skill communicates with the browser via the Chrome DevTools Protocol (CDP). You need to launch your browser with remote debugging enabled so the skill can connect.

### Step 1: Launch browser with remote debugging

Pick one port (e.g. `9222`) and launch your browser with that port. Only one instance can bind to a port.

#### Windows

**Chrome:**
```
"C:\Program Files\Google\Chrome\Application\chrome.exe" --remote-debugging-port=9222
```

**Edge:**
```
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --remote-debugging-port=9222
```

**Brave:**
```
"C:\Program Files\BraveSoftware\Brave-Browser\Application\brave.exe" --remote-debugging-port=9222
```

> On Windows you can also create a desktop shortcut with the flag appended.

#### macOS

**Chrome:**
```bash
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --remote-debugging-port=9222
```

**Edge:**
```bash
/Applications/Microsoft\ Edge.app/Contents/MacOS/Microsoft\ Edge --remote-debugging-port=9222
```

**Brave:**
```bash
/Applications/Brave\ Browser.app/Contents/MacOS/Brave\ Browser --remote-debugging-port=9222
```

#### Linux

```bash
google-chrome --remote-debugging-port=9222
# or
chromium-browser --remote-debugging-port=9222
# or
brave-browser --remote-debugging-port=9222
```

> **Tip:** Close all existing instances of the browser before launching with the flag, or use a separate profile:
> `--user-data-dir=/tmp/qq-music-profile --remote-debugging-port=9222`

### Step 2: Log in to QQ Music

1. Open `https://y.qq.com/` in the browser you just launched.
2. Log in with your QQ / WeChat account.
3. Optionally open `https://y.qq.com/n/ryqq_v2/player` in another tab for a dedicated player view.

### Step 3: Verify the connection

```bash
node qq-music-ctl.js tabs
```

You should see your browser tabs listed, including the QQ Music ones.

### Step 4 (optional): OpenClaw configuration

If using this skill via OpenClaw and you want the agent to call the script directly:

1. Ensure `plugins.allow` includes `browser` (if using OpenClaw's built-in browser tool as fallback).
2. Add `*.qq.com` and `*.y.qq.com` to `browser.ssrfPolicy.hostnameAllowlist` if SSRF policy is active.
3. Set `browser.ssrfPolicy.dangerouslyAllowPrivateNetwork: true` if the CDP endpoint is on localhost.

## Controller script

All actions go through the bundled script:

```bash
node qq-music-ctl.js <action> [args...]
```

All output is JSON on stdout. Exit code 0 = success, 1 = error.

### Environment variables

| Variable | Default | Description |
|---|---|---|
| `QQ_MUSIC_DEVTOOLS_URL` | _(auto-discover)_ | Explicit DevTools base URL, e.g. `http://127.0.0.1:9222` |
| `QQ_MUSIC_DEVTOOLS_HOST` | `127.0.0.1` | Host to probe for DevTools endpoints |
| `QQ_MUSIC_DEVTOOLS_PORTS` | `19011,9222,9223,9224,9225,9333` | Comma-separated ports to probe |
| `QQ_MUSIC_SCREENSHOT_PATH` | `qq-music-screenshot.png` | Default screenshot output path |
| `QQ_MUSIC_PROBE_TIMEOUT_MS` | `1200` | Per-endpoint probe timeout in ms |
| `QQ_MUSIC_PAGE_WAIT_MS` | `3500` | Wait time after page navigation in ms |

## Action reference

### Playback control

| Action | Description |
|---|---|
| `play` | Resume playback (idempotent) |
| `pause` | Pause playback (idempotent) |
| `toggle` | Toggle play/pause |
| `next` | Next track |
| `prev` | Previous track |
| `status` | Current track, artist, time, duration, play state |

### Search & play

| Action | Description |
|---|---|
| `search <keyword>` | Search for a song and play best match |
| `search-artist <name>` | Search for an artist and open their page |
| `play-artist-all-songs <name>` | Play all songs by an artist |
| `search-album <name>` | Search for an album and play it |

### Liked songs

| Action | Description |
|---|---|
| `play-liked` | Play all liked songs (clicks "播放全部") |
| `play-liked-random` | Randomly play one liked song from the visible page |
| `like` | Like current song (idempotent; returns `already_liked` if already liked) |
| `unlike` | Unlike current song (idempotent; returns `already_unliked` if not liked) |

### Playlists

| Action | Description |
|---|---|
| `list-playlists` | List all created playlists with name, song count, and numeric ID |
| `create-playlist <name>` | Create a new playlist (max 20 characters) |
| `add-to-playlist <name>` | Add the currently playing song to a playlist by name |
| `play-playlist <id>` | Play a playlist by its numeric ID |

### Play mode

| Action | Description |
|---|---|
| `mode` | Show current play mode |
| `mode list` | Set to list loop (列表循环) |
| `mode single` | Set to single loop (单曲循环) |
| `mode random` | Set to shuffle (随机播放) |
| `mode order` | Set to sequential (顺序循环) |

### Utility

| Action | Description |
|---|---|
| `screenshot [path]` | Capture a screenshot of the QQ Music tab |
| `tabs` | List all detectable browser tabs |
| `init` | Open QQ Music if no tab exists |

## How it works

1. **Endpoint discovery**: The script probes localhost ports for a DevTools HTTP endpoint (`/json/version` + `/json/list`). It prefers the endpoint that already has QQ Music tabs open.
2. **Tab selection**: Player-tab (`/player` URL) is preferred for transport controls (play/pause/next/prev/status). A separate browse-tab is used for search, navigation, and playlist operations.
3. **DOM automation**: All interactions use `Runtime.evaluate` over CDP to run JavaScript in the page context. No Puppeteer or Playwright dependency.
4. **No external dependencies**: The script is a single file using only Node.js built-ins (`fs`, `WebSocket`, `fetch`). No `npm install` needed.

## Selection rules

- Prefer the player tab for transport controls.
- Prefer the browse tab for search and playlist discovery.
- If there is no QQ Music tab, `init` opens a blank tab and navigates to `https://y.qq.com/`.
- For song search, the first exact or containing title match wins; otherwise the first visible result is played.
- For liked songs, random play picks from the currently visible page (~10 songs; the web version does not expose all liked songs without scrolling).
- For `add-to-playlist`, if a newly created playlist is not yet visible in the player's menu, the player page is automatically reloaded to refresh the cache and retry.
- `like` and `unlike` are idempotent and report the current state.
- `create-playlist` accepts names up to 20 characters (QQ Music web limit).

## Limitations

- The QQ Music web version shows at most ~10 liked songs per page. `play-liked` uses the "播放全部" button which queues all liked songs in the player, but `play-liked-random` can only pick from the visible ~10.
- System audio volume control is out of scope (OS-level, not browser-controlled).
- Some features (like VIP-only songs) depend on the user's QQ Music subscription.
- The skill does not handle QQ Music login; the user must log in manually first.

## Troubleshooting

- **"No DevTools endpoint found"**: Make sure the browser is running with `--remote-debugging-port=<port>` and no other instance is using that port.
- **"Player not found"**: Play a song first (via `search` or `play-liked`) to make the player tab appear.
- **Timeouts**: Increase `QQ_MUSIC_PAGE_WAIT_MS` for slow connections, or `QQ_MUSIC_PROBE_TIMEOUT_MS` for slow endpoint discovery.
- **"CDP connection closed"**: The page may have navigated or crashed. Retry the command.

## Notes

- The skill does not assume a specific browser brand or OS.
- The skill does not hardcode any personal paths, usernames, or tokens.
- If the browser exposes multiple DevTools endpoints, the controller probes common ports and prefers the one with QQ Music tabs.

FILE:qq-music-ctl.js
#!/usr/bin/env node

/**
 * QQ Music browser controller.
 *
 * Cross-platform and browser-agnostic as long as the browser exposes a
 * DevTools / CDP endpoint.
 *
 * Usage:
 *   node qq-music-ctl.js <action> [args...]
 *
 * Environment:
 *   QQ_MUSIC_DEVTOOLS_URL   Explicit DevTools base URL, e.g. http://127.0.0.1:9222
 *   QQ_MUSIC_DEVTOOLS_HOST  Host to probe (default: 127.0.0.1)
 *   QQ_MUSIC_DEVTOOLS_PORTS Comma-separated probe ports (default: 19011,9222,9223,9224,9225,9333)
 *   QQ_MUSIC_SCREENSHOT_PATH Output path for screenshots (default: qq-music-screenshot.png)
 *   QQ_MUSIC_PROBE_TIMEOUT_MS Probe timeout per endpoint (default: 1200)
 *   QQ_MUSIC_PAGE_WAIT_MS    Wait after navigation (default: 3500)
 */

const fs = require('fs');

const DEFAULT_HOST = process.env.QQ_MUSIC_DEVTOOLS_HOST || '127.0.0.1';
const DEFAULT_PORTS = parsePortList(process.env.QQ_MUSIC_DEVTOOLS_PORTS || '19011,9222,9223,9224,9225,9333');
const SCREENSHOT_PATH = process.env.QQ_MUSIC_SCREENSHOT_PATH || 'qq-music-screenshot.png';
const PROBE_TIMEOUT_MS = Number(process.env.QQ_MUSIC_PROBE_TIMEOUT_MS || 1200);
const PAGE_WAIT_MS = Number(process.env.QQ_MUSIC_PAGE_WAIT_MS || 3500);

function parsePortList(value) {
  return [...new Set(String(value).split(',').map(s => Number(s.trim())).filter(n => Number.isInteger(n) && n > 0))];
}

function sleep(ms) {
  return new Promise(r => setTimeout(r, ms));
}

function timeoutError(label) {
  return new Error(`label timed out`);
}

async function fetchJson(url, timeoutMs = PROBE_TIMEOUT_MS) {
  const controller = new AbortController();
  const timer = setTimeout(() => controller.abort(), timeoutMs);
  try {
    const res = await fetch(url, { signal: controller.signal });
    if (!res.ok) throw new Error(`HTTP res.status`);
    return await res.json();
  } finally {
    clearTimeout(timer);
  }
}

function baseOrigin(input) {
  const url = new URL(input);
  return url.origin;
}

function scoreEndpoint(entry) {
  const list = entry.list || [];
  const urls = list.map(t => t.url || '');
  let score = 0;
  if (urls.some(u => u.includes('y.qq.com'))) score += 100;
  if (urls.some(u => u.includes('/player'))) score += 30;
  if (list.some(t => t.type === 'page')) score += 10;
  return score;
}

async function discoverEndpoint() {
  const candidates = [];
  if (process.env.QQ_MUSIC_DEVTOOLS_URL) candidates.push(baseOrigin(process.env.QQ_MUSIC_DEVTOOLS_URL));
  for (const port of DEFAULT_PORTS) candidates.push(`http://DEFAULT_HOST:port`);

  const seen = new Set();
  const discovered = [];

  for (const baseUrl of candidates) {
    if (seen.has(baseUrl)) continue;
    seen.add(baseUrl);
    try {
      const [version, list] = await Promise.all([
        fetchJson(`baseUrl/json/version`),
        fetchJson(`baseUrl/json/list`),
      ]);
      discovered.push({ baseUrl, version, list });
    } catch {
      // ignore and continue probing
    }
  }

  if (!discovered.length) {
    throw new Error(
      `No DevTools endpoint found. Set QQ_MUSIC_DEVTOOLS_URL or start a browser with remote debugging. ` +
      `Probed ports: DEFAULT_PORTS.join(', ')`
    );
  }

  discovered.sort((a, b) => scoreEndpoint(b) - scoreEndpoint(a));
  return discovered[0];
}

function pageTargets(entry) {
  return (entry.list || []).filter(t => t.type === 'page');
}

function firstTarget(list, predicate) {
  return list.find(predicate) || null;
}

function isQQMusicTarget(target) {
  return target && typeof target.url === 'string' && target.url.includes('y.qq.com');
}

function isPlayerTarget(target) {
  return isQQMusicTarget(target) && target.url.includes('/player');
}

function isBrowseTarget(target) {
  return isQQMusicTarget(target) && !target.url.includes('/player');
}

function prettyUrl(target) {
  return target ? target.url : '';
}

function connectCDP(wsUrl) {
  return new Promise((resolve, reject) => {
    const ws = new WebSocket(wsUrl);
    let seq = 0;
    let closed = false;
    const pending = new Map();

    function failAll(err) {
      if (closed) return;
      closed = true;
      for (const { reject: rej, timer } of pending.values()) {
        clearTimeout(timer);
        rej(err);
      }
      pending.clear();
    }

    function send(method, params = {}) {
      if (closed) return Promise.reject(new Error('CDP session closed'));
      return new Promise((resolveSend, rejectSend) => {
        const id = ++seq;
        const timer = setTimeout(() => {
          pending.delete(id);
          rejectSend(timeoutError(method));
        }, 10000);
        pending.set(id, { resolve: resolveSend, reject: rejectSend, timer });
        ws.send(JSON.stringify({ id, method, params }));
      });
    }

    async function evaluate(expression) {
      const res = await send('Runtime.evaluate', {
        expression,
        returnByValue: true,
        awaitPromise: true,
      });
      return res.result ? res.result.value : undefined;
    }

    ws.onopen = () => resolve({ ws, send, evaluate, close: () => { closed = true; ws.close(); } });
    ws.onmessage = evt => {
      const msg = JSON.parse(evt.data);
      if (!msg.id || !pending.has(msg.id)) return;
      const item = pending.get(msg.id);
      pending.delete(msg.id);
      clearTimeout(item.timer);
      if (msg.error) item.reject(new Error(msg.error.message || 'CDP command failed'));
      else item.resolve(msg.result);
    };
    ws.onerror = err => failAll(new Error(err.message || 'CDP connection error'));
    ws.onclose = () => failAll(new Error('CDP connection closed'));
  });
}

async function browserSession(entry) {
  const url = entry.version.webSocketDebuggerUrl;
  if (!url) throw new Error('Browser-level WebSocket URL not available. Target.createTarget may not work.');
  return connectCDP(url);
}

async function pageSession(target) {
  return connectCDP(target.webSocketDebuggerUrl);
}

function output(obj) {
  console.log(JSON.stringify(obj, null, 2));
}

async function createTarget(entry, url = 'about:blank') {
  const browser = await browserSession(entry);
  try {
    const result = await browser.send('Target.createTarget', { url });
    return result.targetId;
  } finally {
    browser.close();
  }
}

async function openOrReuseBrowseTarget(entry) {
  const pages = pageTargets(entry);
  const browse = firstTarget(pages, isBrowseTarget);
  if (browse) return browse;

  const anyQQ = firstTarget(pages, isQQMusicTarget);
  if (anyQQ) return anyQQ;

  const blank = firstTarget(pages, t => t.url === 'about:blank' || t.url.startsWith('chrome://'));
  if (blank) return blank;

  const newTargetId = await createTarget(entry, 'about:blank');
  const refreshed = await fetchJson(`entry.baseUrl/json/list`);
  return firstTarget(refreshed, t => t.id === newTargetId) || firstTarget(refreshed, t => t.url === 'about:blank') || null;
}

function songQueryJS(keyword) {
  const q = JSON.stringify(String(keyword || '').trim().toLowerCase());
  return `
    (function() {
      const want = q;
      const items = Array.from(document.querySelectorAll('.songlist__item'));
      if (!items.length) return JSON.stringify({ ok: false, msg: 'No search results' });

      function clean(s) { return String(s || '').trim().toLowerCase().replace(/\s+/g, ''); }
      function titleOf(item) {
        const el = item.querySelector('.songlist__songname_txt a[title]');
        return el ? String(el.title || el.textContent || '').trim() : '';
      }
      function artistOf(item) {
        const el = item.querySelector('.songlist__artist a');
        return el ? String(el.title || el.textContent || '').trim() : '';
      }
      function play(item) {
        const btn = item.querySelector('.list_menu__play');
        if (btn) { btn.click(); return 'play-btn'; }
        const song = item.querySelector('.songlist__songname_txt');
        if (song) { song.dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true })); return 'dblclick'; }
        return 'none';
      }

      let chosen = items[0];
      if (want) {
        const exact = items.find(item => clean(titleOf(item)) === want);
        const contains = items.find(item => clean(titleOf(item)).includes(want));
        chosen = exact || contains || items[0];
      }

      const name = titleOf(chosen);
      const artist = artistOf(chosen);
      const method = play(chosen);
      return JSON.stringify({ ok: true, song: name, artist, results: items.length, method });
    })()
  `;
}

function firstVisibleSongJS() {
  return `
    (function() {
      const items = Array.from(document.querySelectorAll('.songlist__item'));
      if (!items.length) return JSON.stringify({ ok: false, msg: 'No songs found' });
      const idx = Math.floor(Math.random() * items.length);
      const item = items[idx];
      const nameEl = item.querySelector('.songlist__songname_txt a[title]');
      const artistEl = item.querySelector('.songlist__artist a');
      const playBtn = item.querySelector('.list_menu__play');
      const song = nameEl ? String(nameEl.title || nameEl.textContent || '').trim() : '';
      const artist = artistEl ? String(artistEl.title || artistEl.textContent || '').trim() : '';
      if (playBtn) playBtn.click(); else item.dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true }));
      return JSON.stringify({ ok: true, song, artist, index: idx, total: items.length });
    })()
  `;
}

function playlistPlayJS() {
  return `
    (function() {
      const playAll = document.querySelector('.mod_btn_green');
      if (playAll) {
        playAll.click();
        const items = Array.from(document.querySelectorAll('.songlist__item'));
        const first = items[0] ? items[0].querySelector('.songlist__songname_txt a[title]') : null;
        return JSON.stringify({ ok: true, action: 'play_all', firstSong: first ? String(first.title || '').trim() : '', total: items.length });
      }
      const items = Array.from(document.querySelectorAll('.songlist__item'));
      if (!items.length) return JSON.stringify({ ok: false, msg: 'Playlist empty or not found' });
      const btn = items[0].querySelector('.list_menu__play');
      if (btn) btn.click(); else items[0].dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true }));
      return JSON.stringify({ ok: true, action: 'first_song', total: items.length });
    })()
  `;
}

async function actionTabs() {
  const entry = await discoverEndpoint();
  output({
    browser: entry.version.Browser || entry.version['Browser'] || '',
    baseUrl: entry.baseUrl,
    tabs: pageTargets(entry).map(t => ({
      id: t.id,
      title: t.title,
      url: t.url,
      isPlayer: isPlayerTarget(t),
      isQQMusic: isQQMusicTarget(t),
    })),
  });
}

async function actionInit() {
  const entry = await discoverEndpoint();
  const browse = await openOrReuseBrowseTarget(entry);
  if (!browse) throw new Error('No browser tab available');
  output({ ok: true, baseUrl: entry.baseUrl, targetId: browse.id, url: prettyUrl(browse) });
}

async function withPlayer(fn) {
  const entry = await discoverEndpoint();
  const target = firstTarget(pageTargets(entry), isPlayerTarget);
  if (!target) return output({ error: 'Player not found. Play a song first.' });
  const session = await pageSession(target);
  try {
    return await fn(session, target, entry);
  } finally {
    session.close();
  }
}

async function withBrowse(fn) {
  const entry = await discoverEndpoint();
  const target = await openOrReuseBrowseTarget(entry);
  if (!target) throw new Error('No browser tab available');
  const session = await pageSession(target);
  try {
    return await fn(session, target, entry);
  } finally {
    session.close();
  }
}

async function actionStatus() {
  const entry = await discoverEndpoint();
  const target = firstTarget(pageTargets(entry), isPlayerTarget);
  if (!target) return output({ status: 'no_player', msg: 'QQ Music player not open.' });
  const session = await pageSession(target);
  try {
    const result = await session.evaluate(`
      (function() {
        const infoEl = document.querySelector('.player_music__info');
        const nameEl = infoEl ? infoEl.querySelector('a:first-child') : null;
        const artistEl = infoEl ? infoEl.querySelector('a.playlist__author') : null;
        const timeEl = document.querySelector('.player_music__time');
        const playBtn = document.querySelector('.btn_big_play');
        const isPlaying = playBtn ? playBtn.classList.contains('btn_big_play--pause') : null;
        const activeSong = document.querySelector('.songlist__item--active .songlist__songname_txt a[title]');
        const activeArtist = document.querySelector('.songlist__item--active .songlist__artist a');
        let time = '';
        let duration = '';
        if (timeEl) {
          const parts = timeEl.textContent.trim().split('/');
          time = (parts[0] || '').trim();
          duration = (parts[1] || '').trim();
        }
        return JSON.stringify({
          song: (nameEl ? nameEl.textContent.trim() : '') || (activeSong ? String(activeSong.title || '').trim() : ''),
          artist: (artistEl ? artistEl.textContent.trim() : '') || (activeArtist ? String(activeArtist.title || '').trim() : ''),
          time,
          duration,
          isPlaying,
          status: isPlaying === true ? 'playing' : isPlaying === false ? 'paused' : 'unknown'
        });
      })()
    `);
    output(JSON.parse(result));
  } finally {
    session.close();
  }
}

async function actionPlay() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_play');
        if (!btn) return JSON.stringify({ ok: false, msg: 'Play button not found' });
        const wasPlaying = btn.classList.contains('btn_big_play--pause');
        if (!wasPlaying) btn.click();
        return JSON.stringify({ ok: true, action: wasPlaying ? 'already_playing' : 'resumed' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionPause() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_play');
        if (!btn) return JSON.stringify({ ok: false, msg: 'Play button not found' });
        const wasPlaying = btn.classList.contains('btn_big_play--pause');
        if (wasPlaying) btn.click();
        return JSON.stringify({ ok: true, action: wasPlaying ? 'paused' : 'already_paused' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionToggle() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_play');
        if (!btn) return JSON.stringify({ ok: false, msg: 'Play button not found' });
        const wasPlaying = btn.classList.contains('btn_big_play--pause');
        btn.click();
        return JSON.stringify({ ok: true, action: wasPlaying ? 'pause' : 'play' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionNext() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_next');
        if (btn) { btn.click(); return JSON.stringify({ ok: true, action: 'next' }); }
        return JSON.stringify({ ok: false, msg: 'Next button not found' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionPrev() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_prev');
        if (btn) { btn.click(); return JSON.stringify({ ok: true, action: 'prev' }); }
        return JSON.stringify({ ok: false, msg: 'Prev button not found' });
      })()
    `);
    output(JSON.parse(result));
  });
}

function normalizeMusicText(value) {
  return String(value || '')
    .trim()
    .toLowerCase()
    .replace(/\s+/g, '')
    .replace(/[·•]/g, '')
    .replace(/[（）()\[\]【】{}]/g, '');
}

async function waitForEvalResult(session, buildEvalJs, { timeoutMs = 12000, intervalMs = 350, label = 'condition' } = {}) {
  const deadline = Date.now() + timeoutMs;
  let last = null;
  while (Date.now() < deadline) {
    try {
      const raw = await session.evaluate(buildEvalJs());
      last = JSON.parse(raw);
    } catch (err) {
      last = { ok: false, stage: 'evaluate_error', error: err.message || String(err) };
    }
    if (last && last.ok) return last;
    await sleep(intervalMs);
  }
  const error = new Error(`label timed out`);
  error.last = last;
  throw error;
}

function buildArtistSearchEval(keyword) {
  const want = JSON.stringify(normalizeMusicText(keyword));
  return `
    (function() {
      const want = want;
      const norm = s => String(s || '')
        .trim()
        .toLowerCase()
        .replace(/\\s+/g, '')
        .replace(/[·•]/g, '')
        .replace(/[（）()\\[\\]【】{}]/g, '');

      const selectors = [
        '.search_result__singer a',
        '.singer_list__item a',
        '.mod_singer_list a',
        'a[href*="/singer/"]',
        'a[href*="/ryqq/singer/"]'
      ];

      const seen = new Set();
      const candidates = Array.from(document.querySelectorAll(selectors.join(','))).filter(el => {
        const href = String(el.href || el.getAttribute('href') || '').trim();
        const text = norm(el.title || el.textContent || el.getAttribute('aria-label') || '');
        if (!href && !text) return false;
        const key = href + '|' + text;
        if (seen.has(key)) return false;
        seen.add(key);
        return true;
      });

      const match = candidates.find(el => {
        const text = norm(el.title || el.textContent || el.getAttribute('aria-label') || '');
        return want && text && (text === want || text.includes(want) || want.includes(text));
      });

      if (!match) {
        return JSON.stringify({
          ok: false,
          stage: 'searching',
          count: candidates.length
        });
      }

      const rawHref = match.href || match.getAttribute('href') || '';
      let href = '';
      try {
        href = rawHref ? new URL(rawHref, location.href).href : '';
      } catch {
        href = rawHref;
      }

      return JSON.stringify({
        ok: true,
        name: String(match.title || match.textContent || match.getAttribute('aria-label') || '').trim(),
        href,
        count: candidates.length
      });
    })()
  `;
}

function buildPlayAllEval() {
  return `
    (function() {
      const norm = s => String(s || '').trim();
      const selectors = [
        '.mod_btn_green',
        '.btn_green',
        '.songlist__play',
        '[title*="播放全部"]',
        '[title*="全部播放"]',
        '[aria-label*="播放全部"]',
        '[aria-label*="全部播放"]'
      ];

      const candidates = Array.from(document.querySelectorAll(selectors.join(',')));
      const button = candidates.find(el => {
        const text = norm(el.title || el.textContent || el.getAttribute('aria-label') || '');
        return text.includes('播放全部') || text.includes('全部播放') || text.includes('播放歌手热门歌曲') || (text.includes('播放') && text.includes('全部'));
      });

      if (!button) {
        return JSON.stringify({ ok: false, stage: 'play_all_not_found', count: candidates.length });
      }

      button.scrollIntoView({ block: 'center' });
      button.click();

      return JSON.stringify({
        ok: true,
        action: 'play_all_clicked',
        label: norm(button.title || button.textContent || button.getAttribute('aria-label') || '')
      });
    })()
  `;
}

async function openArtistPage(session, keyword) {
  const query = String(keyword || '').trim();
  if (!query) throw new Error('Artist keyword is required');

  const searchUrl = `https://y.qq.com/n/ryqq/search?w=encodeURIComponent(query)&t=singer`;
  await session.send('Page.navigate', { url: searchUrl });
  await sleep(800);

  const result = await waitForEvalResult(
    session,
    () => buildArtistSearchEval(query),
    { timeoutMs: 15000, intervalMs: 400, label: `search artist query` }
  );

  if (!result.href) {
    throw new Error(`Artist link not found for query`);
  }

  await session.send('Page.navigate', { url: result.href });
  await sleep(1000);
  return result;
}

async function actionSearch(keyword, type = 'song') {
  await withBrowse(async session => {
    const typeMap = { song: 'song', album: 'album' };
    const t = typeMap[type] || 'song';
    const url = `https://y.qq.com/n/ryqq/search?w=encodeURIComponent(String(keyword || '').trim())&t=t`;
    await session.send('Page.navigate', { url });
    await sleep(PAGE_WAIT_MS);

    if (type === 'album') {
      const playAll = await session.evaluate(buildPlayAllEval());
      const parsedPlayAll = JSON.parse(playAll);
      if (parsedPlayAll.ok) {
        output({ ok: true, scope: 'album', ...parsedPlayAll });
        return;
      }

      const result = await session.evaluate(`
        (function() {
          const items = Array.from(document.querySelectorAll('.songlist__item'));
          if (!items.length) return JSON.stringify({ ok: false, msg: 'No results' });
          const item = items[0];
          const nameEl = item.querySelector('.songlist__songname_txt a[title]');
          const artistEl = item.querySelector('.songlist__artist a');
          const playBtn = item.querySelector('.list_menu__play');
          if (playBtn) playBtn.click(); else item.dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true }));
          return JSON.stringify({ ok: true, song: nameEl ? String(nameEl.title || '').trim() : '', artist: artistEl ? String(artistEl.title || '').trim() : '', fallback: 'first_song' });
        })()
      `);
      output(JSON.parse(result));
      return;
    }

    const result = await session.evaluate(songQueryJS(keyword));
    output(JSON.parse(result));
  });
}

async function actionSearchArtist(keyword) {
  await withBrowse(async session => {
    const artist = await openArtistPage(session, keyword);
    output({
      ok: true,
      action: 'opened_artist_page',
      artist: artist.name,
      href: artist.href,
      count: artist.count,
    });
  });
}

async function actionPlayArtistAllSongs(keyword) {
  await withBrowse(async session => {
    const artist = await openArtistPage(session, keyword);
    const result = await waitForEvalResult(
      session,
      buildPlayAllEval,
      { timeoutMs: 15000, intervalMs: 450, label: `play all songs for artist.name || String(keyword || '').trim()` }
    );

    output({
      ok: true,
      action: 'play_artist_all_songs',
      artist: artist.name,
      href: artist.href,
      ...result,
    });
  });
}


async function actionPlayLiked(random = false) {
  await withBrowse(async session => {
    await session.send('Page.navigate', { url: 'https://y.qq.com/n/ryqq_v2/profile/like/song' });
    await sleep(PAGE_WAIT_MS);
    if (random) {
      const result = await session.evaluate(firstVisibleSongJS());
      output(JSON.parse(result));
    } else {
      // Click "播放全部" to queue all liked songs
      const playAllResult = await session.evaluate(buildPlayAllEval());
      const parsed = JSON.parse(playAllResult);
      if (parsed.ok) {
        output({ ok: true, action: 'play_all_liked', ...parsed });
      } else {
        // Fallback: play first song
        const result = await session.evaluate(`
          (function() {
            const items = Array.from(document.querySelectorAll('.songlist__item'));
            if (!items.length) return JSON.stringify({ ok: false, msg: 'No liked songs found' });
            const item = items[0];
            const nameEl = item.querySelector('.songlist__songname_txt a[title]');
            const artistEl = item.querySelector('.songlist__artist a');
            const playBtn = item.querySelector('.list_menu__play');
            if (playBtn) playBtn.click(); else item.dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true }));
            return JSON.stringify({ ok: true, song: nameEl ? String(nameEl.title || '').trim() : '', artist: artistEl ? String(artistEl.title || '').trim() : '', index: 0, total: items.length });
          })()
        `);
        output(JSON.parse(result));
      }
    }
  });
}

async function actionPlayPlaylist(playlistId) {
  await withBrowse(async session => {
    await session.send('Page.navigate', { url: `https://y.qq.com/n/ryqq/playlist/encodeURIComponent(String(playlistId || '').trim())` });
    await sleep(PAGE_WAIT_MS);
    const result = await session.evaluate(playlistPlayJS());
    output(JSON.parse(result));
  });
}

async function actionLike() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_like');
        if (!btn) return JSON.stringify({ ok: false, msg: 'Like button not found' });
        const wasLiked = btn.classList.contains('btn_big_like--like');
        if (wasLiked) return JSON.stringify({ ok: true, action: 'already_liked', liked: true });
        btn.click();
        return JSON.stringify({ ok: true, action: 'liked', liked: true });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionUnlike() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_like');
        if (!btn) return JSON.stringify({ ok: false, msg: 'Like button not found' });
        const wasLiked = btn.classList.contains('btn_big_like--like');
        if (!wasLiked) return JSON.stringify({ ok: true, action: 'already_unliked', liked: false });
        btn.click();
        return JSON.stringify({ ok: true, action: 'unliked', liked: false });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionListPlaylists() {
  await withBrowse(async session => {
    await session.send('Page.navigate', { url: 'https://y.qq.com/n/ryqq_v2/profile/create' });
    await sleep(PAGE_WAIT_MS);
    const result = await waitForEvalResult(
      session,
      () => `
        (function() {
          const items = Array.from(document.querySelectorAll('.playlist__item'));
          if (!items.length) return JSON.stringify({ ok: false, msg: 'No playlists found' });
          const playlists = items.map(item => {
            const titleEl = item.querySelector('.playlist__title');
            const numberEl = item.querySelector('.playlist__number');
            const linkEl = item.querySelector('a[href*="playlist"]');
            const href = linkEl ? String(linkEl.href || '') : '';
            const parts = href.split('/');
            const id = parts[parts.length - 1] || '';
            return {
              name: titleEl ? titleEl.textContent.trim() : '',
              count: numberEl ? numberEl.textContent.trim() : '',
              id: id,
            };
          });
          return JSON.stringify({ ok: true, playlists });
        })()
      `,
      { timeoutMs: 15000, intervalMs: 500, label: 'list playlists' }
    );
    output(result);
  });
}

async function actionCreatePlaylist(name) {
  const playlistName = String(name || '').trim();
  if (!playlistName) throw new Error('Playlist name is required');
  await withBrowse(async session => {
    await session.send('Page.navigate', { url: 'https://y.qq.com/n/ryqq_v2/profile/create' });
    await sleep(PAGE_WAIT_MS);

    // Click "新建歌单" button
    await session.evaluate(`
      (function() {
        const btn = document.querySelector('.js_create_new');
        if (btn) btn.click();
      })()
    `);
    await sleep(1000);

    // Fill in name and confirm
    const nameEscaped = JSON.stringify(playlistName);
    const result = await session.evaluate(`
      (function() {
        const input = document.querySelector('#new_playlist');
        if (!input) return JSON.stringify({ ok: false, msg: 'Create dialog not found' });
        const nativeInputValueSetter = Object.getOwnPropertyDescriptor(window.HTMLInputElement.prototype, 'value').set;
        nativeInputValueSetter.call(input, nameEscaped);
        input.dispatchEvent(new Event('input', { bubbles: true }));
        input.dispatchEvent(new Event('change', { bubbles: true }));
        const confirmBtn = document.querySelector('.popup__ft .mod_btn_green');
        if (!confirmBtn) return JSON.stringify({ ok: false, msg: 'Confirm button not found' });
        confirmBtn.click();
        return JSON.stringify({ ok: true, action: 'created', name: nameEscaped });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function addToPlaylistAttempt(playerTarget, want) {
  const session = await pageSession(playerTarget);
  try {
    // Click add button on the currently playing song
    const raw = await session.evaluate(`
      (function() {
        const playing = document.querySelector('.songlist__item--playing');
        if (!playing) return JSON.stringify({ ok: false, msg: 'No song playing' });
        const addBtn = playing.querySelector('.list_menu__add');
        if (addBtn) addBtn.click();
        return JSON.stringify({ ok: true, clicked: !!addBtn });
      })()
    `);
    const clickResult = JSON.parse(raw);
    if (!clickResult.ok) return clickResult;
  } finally {
    session.close();
  }

  await sleep(1000);

  const session2 = await pageSession(playerTarget);
  try {
    const raw2 = await session2.evaluate(`
      (function() {
        const want = JSON.stringify(want);
        const menu = document.querySelector('.mod_operate_menu');
        if (!menu) return JSON.stringify({ ok: false, msg: 'Add-to-playlist menu not found' });
        const items = Array.from(menu.querySelectorAll('.operate_menu__item .operate_menu__link'));
        const match = items.find(a => a.textContent.trim().toLowerCase() === want);
        if (!match) {
          const available = items.map(a => a.textContent.trim());
          return JSON.stringify({ ok: false, msg: 'Playlist not found', available });
        }
        match.click();
        return JSON.stringify({ ok: true, action: 'added', playlist: match.textContent.trim() });
      })()
    `);
    return JSON.parse(raw2);
  } finally {
    session2.close();
  }
}

async function actionAddToPlaylist(playlistName) {
  const want = String(playlistName || '').trim().toLowerCase();
  if (!want) throw new Error('Playlist name is required');

  const entry = await discoverEndpoint();
  const playerTarget = firstTarget(pageTargets(entry), isPlayerTarget);
  if (!playerTarget) return output({ error: 'Player not found. Play a song first.' });

  let result = await addToPlaylistAttempt(playerTarget, want);

  // If playlist not found, reload player to refresh playlist cache and retry
  if (!result.ok && result.msg === 'Playlist not found') {
    const reloadSession = await pageSession(playerTarget);
    try {
      await reloadSession.evaluate('location.reload()');
    } finally {
      reloadSession.close();
    }
    await sleep(PAGE_WAIT_MS);
    result = await addToPlaylistAttempt(playerTarget, want);
  }

  output(result);
}

async function actionScreenshot(pathArg) {
  const entry = await discoverEndpoint();
  const target = firstTarget(pageTargets(entry), isPlayerTarget) || firstTarget(pageTargets(entry), isBrowseTarget);
  if (!target) return output({ error: 'No QQ Music tab found.' });
  const session = await pageSession(target);
  try {
    await sleep(1000);
    const result = await session.send('Page.captureScreenshot', { format: 'png' });
    const outPath = pathArg || SCREENSHOT_PATH;
    const buf = Buffer.from(result.data, 'base64');
    fs.writeFileSync(outPath, buf);
    output({ ok: true, path: outPath, bytes: buf.length });
  } finally {
    session.close();
  }
}

const PLAY_MODES = {
  'list':   { class: 'btn_big_style_list',   label: '列表循环' },
  'single': { class: 'btn_big_style_single', label: '单曲循环' },
  'random': { class: 'btn_big_style_random', label: '随机播放' },
  'order':  { class: 'btn_big_style_order',  label: '顺序循环' },
};

const MODE_CYCLE = ['list', 'single', 'random', 'order'];

function detectCurrentMode(className) {
  for (const [key, val] of Object.entries(PLAY_MODES)) {
    if (className.includes(val.class)) return key;
  }
  return null;
}

async function actionMode(targetMode) {
  await withPlayer(async session => {
    if (targetMode && !PLAY_MODES[targetMode]) {
      return output({ ok: false, msg: `Unknown mode: targetMode. Valid: Object.keys(PLAY_MODES).join(', ')` });
    }

    const current = await session.evaluate(`
      (() => {
        const el = document.querySelector('[class*=btn_big_style]');
        if (!el) return JSON.stringify({ error: 'Mode button not found' });
        return JSON.stringify({ className: el.className, title: el.title });
      })()
    `);
    const info = JSON.parse(current);
    if (info.error) return output({ ok: false, msg: info.error });

    const currentMode = detectCurrentMode(info.className);

    if (!targetMode) {
      return output({ ok: true, mode: currentMode, label: PLAY_MODES[currentMode]?.label || info.title });
    }

    if (currentMode === targetMode) {
      return output({ ok: true, mode: currentMode, label: PLAY_MODES[currentMode].label, action: 'already_set' });
    }

    const maxClicks = MODE_CYCLE.length;
    for (let i = 0; i < maxClicks; i++) {
      const result = await session.evaluate(`
        (() => {
          const el = document.querySelector('[class*=btn_big_style]');
          if (!el) return JSON.stringify({ error: 'Mode button not found' });
          el.click();
          return new Promise(r => setTimeout(() => {
            r(JSON.stringify({ className: el.className, title: el.title }));
          }, 500));
        })()
      `);
      const after = JSON.parse(result);
      if (after.error) return output({ ok: false, msg: after.error });
      const newMode = detectCurrentMode(after.className);
      if (newMode === targetMode) {
        return output({ ok: true, mode: newMode, label: PLAY_MODES[newMode].label, action: 'switched', clicks: i + 1 });
      }
    }

    return output({ ok: false, msg: `Failed to switch to targetMode after maxClicks clicks` });
  });
}

function printHelp() {
  output({
    usage: 'node qq-music-ctl.js <action> [args...]',
    actions: ['play','pause','toggle','next','prev','status','mode [list|single|random|order]','search <keyword>','search-artist <artist>','play-artist-all-songs <artist>','search-album <album>','play-liked','play-liked-random','play-playlist <id>','like','unlike','list-playlists','create-playlist <name>','add-to-playlist <name>','screenshot [path]','tabs','init'],
  });
}

async function main() {
  const action = process.argv[2];
  const args = process.argv.slice(3);

  if (!action || action === '--help' || action === '-h') {
    return printHelp();
  }

  switch (action) {
    case 'play': return actionPlay();
    case 'pause': return actionPause();
    case 'toggle': return actionToggle();
    case 'next': return actionNext();
    case 'prev': return actionPrev();
    case 'status': return actionStatus();
    case 'search': return actionSearch(args.join(' '), 'song');
    case 'search-artist': return actionSearchArtist(args.join(' '));
    case 'play-artist-all-songs': return actionPlayArtistAllSongs(args.join(' '));
    case 'search-album': return actionSearch(args.join(' '), 'album');
    case 'play-liked': return actionPlayLiked(false);
    case 'play-liked-random': return actionPlayLiked(true);
    case 'play-playlist': return actionPlayPlaylist(args[0]);
    case 'mode': return actionMode(args[0] || '');
    case 'like': return actionLike();
    case 'unlike': return actionUnlike();
    case 'list-playlists': return actionListPlaylists();
    case 'create-playlist': return actionCreatePlaylist(args.join(' '));
    case 'add-to-playlist': return actionAddToPlaylist(args.join(' '));
    case 'screenshot': return actionScreenshot(args[0]);
    case 'tabs': return actionTabs();
    case 'init': return actionInit();
    default:
      return printHelp();
  }
}

main().catch(err => {
  output({ error: err.message || String(err) });
  process.exit(1);
});

---
name: qq-music
description: "Control QQ Music playback in any browser that exposes a DevTools/CDP endpoint. Supports play/pause/next/prev, search songs/artists/albums, play liked songs, random play, like current song, playlist playback, screenshots, and browser-target discovery across platforms."
metadata:
  openclaw:
    emoji: "🎵"
---

# QQ Music Control

Use this skill to control QQ Music (y.qq.com) through a browser DevTools/CDP endpoint.

## What it supports

- Cross-platform operation on Windows, macOS, and Linux
- Cross-browser operation as long as the browser exposes a DevTools/CDP endpoint
- QQ Music search and playback flows
- Liked songs / favorites playback
- Playlist playback
- Pause / resume / next / previous
- Like current track
- Status lookup
- Screenshot capture

## Requirements

- A browser with remote debugging enabled, or a browser/profile already exposing a DevTools endpoint
- QQ Music logged in for playlist / liked-song actions
- A browser tab on `y.qq.com` or the ability to open one

## Controller script

All actions go through the bundled script:

```bash
node qq-music-ctl.js <action> [args...]
```

If the browser is not already connected, set one of these:

- `QQ_MUSIC_DEVTOOLS_URL` — explicit DevTools base URL, e.g. `http://127.0.0.1:9222`
- `QQ_MUSIC_DEVTOOLS_PORTS` — comma-separated ports to probe
- `QQ_MUSIC_DEVTOOLS_HOST` — host to probe

## Action map

| Action | Meaning |
|---|---|
| `play` | Resume playback |
| `pause` | Pause playback |
| `toggle` | Toggle play/pause |
| `next` | Next track |
| `prev` | Previous track |
| `status` | Current track/status |
| `search <keyword>` | Search song and play best match |
| `search-artist <name>` | Search artist and play top result |
| `search-album <name>` | Search album and play top result |
| `play-liked` | Play liked songs from the start |
| `play-liked-random` | Randomly play one liked song |
| `play-playlist <id>` | Play playlist by ID |
| `like` | Like current song |
| `screenshot [path]` | Capture a screenshot |
| `tabs` | List detectable browser tabs |
| `init` | Open QQ Music if needed |

## Selection rules

- Prefer the player tab when doing transport controls.
- Prefer the browse tab for search and playlist discovery.
- If there is no QQ Music tab, open a blank tab and navigate to `https://y.qq.com/`.
- For song search, the first exact or containing title match wins; otherwise use the first visible result.
- For liked songs, random play uses the currently visible page of liked songs.

## Notes

- The skill does not assume a specific browser brand.
- The skill does not assume Windows paths or `cmd /c`.
- If the browser exposes multiple DevTools endpoints, the controller probes common ports and prefers the endpoint that already has QQ Music tabs.
- Avoid hardcoding personal paths, usernames, tokens, or host-specific secrets in examples or bundled code.
- System audio volume is out of scope for this skill.

FILE:qq-music-ctl.js
#!/usr/bin/env node

/**
 * QQ Music browser controller.
 *
 * Cross-platform and browser-agnostic as long as the browser exposes a
 * DevTools / CDP endpoint.
 *
 * Usage:
 *   node qq-music-ctl.js <action> [args...]
 *
 * Environment:
 *   QQ_MUSIC_DEVTOOLS_URL   Explicit DevTools base URL, e.g. http://127.0.0.1:9222
 *   QQ_MUSIC_DEVTOOLS_HOST  Host to probe (default: 127.0.0.1)
 *   QQ_MUSIC_DEVTOOLS_PORTS Comma-separated probe ports (default: 19011,9222,9223,9224,9225,9333)
 *   QQ_MUSIC_SCREENSHOT_PATH Output path for screenshots (default: qq-music-screenshot.png)
 *   QQ_MUSIC_PROBE_TIMEOUT_MS Probe timeout per endpoint (default: 1200)
 *   QQ_MUSIC_PAGE_WAIT_MS    Wait after navigation (default: 3500)
 */

const fs = require('fs');

const DEFAULT_HOST = process.env.QQ_MUSIC_DEVTOOLS_HOST || '127.0.0.1';
const DEFAULT_PORTS = parsePortList(process.env.QQ_MUSIC_DEVTOOLS_PORTS || '19011,9222,9223,9224,9225,9333');
const SCREENSHOT_PATH = process.env.QQ_MUSIC_SCREENSHOT_PATH || 'qq-music-screenshot.png';
const PROBE_TIMEOUT_MS = Number(process.env.QQ_MUSIC_PROBE_TIMEOUT_MS || 1200);
const PAGE_WAIT_MS = Number(process.env.QQ_MUSIC_PAGE_WAIT_MS || 3500);

function parsePortList(value) {
  return [...new Set(String(value).split(',').map(s => Number(s.trim())).filter(n => Number.isInteger(n) && n > 0))];
}

function sleep(ms) {
  return new Promise(r => setTimeout(r, ms));
}

function timeoutError(label) {
  return new Error(`label timed out`);
}

async function fetchJson(url, timeoutMs = PROBE_TIMEOUT_MS) {
  const controller = new AbortController();
  const timer = setTimeout(() => controller.abort(), timeoutMs);
  try {
    const res = await fetch(url, { signal: controller.signal });
    if (!res.ok) throw new Error(`HTTP res.status`);
    return await res.json();
  } finally {
    clearTimeout(timer);
  }
}

function baseOrigin(input) {
  const url = new URL(input);
  return url.origin;
}

function scoreEndpoint(entry) {
  const list = entry.list || [];
  const urls = list.map(t => t.url || '');
  let score = 0;
  if (urls.some(u => u.includes('y.qq.com'))) score += 100;
  if (urls.some(u => u.includes('/player'))) score += 30;
  if (list.some(t => t.type === 'page')) score += 10;
  return score;
}

async function discoverEndpoint() {
  const candidates = [];
  if (process.env.QQ_MUSIC_DEVTOOLS_URL) candidates.push(baseOrigin(process.env.QQ_MUSIC_DEVTOOLS_URL));
  for (const port of DEFAULT_PORTS) candidates.push(`http://DEFAULT_HOST:port`);

  const seen = new Set();
  const discovered = [];

  for (const baseUrl of candidates) {
    if (seen.has(baseUrl)) continue;
    seen.add(baseUrl);
    try {
      const [version, list] = await Promise.all([
        fetchJson(`baseUrl/json/version`),
        fetchJson(`baseUrl/json/list`),
      ]);
      discovered.push({ baseUrl, version, list });
    } catch {
      // ignore and continue probing
    }
  }

  if (!discovered.length) {
    throw new Error(
      `No DevTools endpoint found. Set QQ_MUSIC_DEVTOOLS_URL or start a browser with remote debugging. ` +
      `Probed ports: DEFAULT_PORTS.join(', ')`
    );
  }

  discovered.sort((a, b) => scoreEndpoint(b) - scoreEndpoint(a));
  return discovered[0];
}

function pageTargets(entry) {
  return (entry.list || []).filter(t => t.type === 'page');
}

function firstTarget(list, predicate) {
  return list.find(predicate) || null;
}

function isQQMusicTarget(target) {
  return target && typeof target.url === 'string' && target.url.includes('y.qq.com');
}

function isPlayerTarget(target) {
  return isQQMusicTarget(target) && target.url.includes('/player');
}

function isBrowseTarget(target) {
  return isQQMusicTarget(target) && !target.url.includes('/player');
}

function prettyUrl(target) {
  return target ? target.url : '';
}

function connectCDP(wsUrl) {
  return new Promise((resolve, reject) => {
    const ws = new WebSocket(wsUrl);
    let seq = 0;
    let closed = false;
    const pending = new Map();

    function failAll(err) {
      if (closed) return;
      closed = true;
      for (const { reject: rej, timer } of pending.values()) {
        clearTimeout(timer);
        rej(err);
      }
      pending.clear();
    }

    function send(method, params = {}) {
      if (closed) return Promise.reject(new Error('CDP session closed'));
      return new Promise((resolveSend, rejectSend) => {
        const id = ++seq;
        const timer = setTimeout(() => {
          pending.delete(id);
          rejectSend(timeoutError(method));
        }, 10000);
        pending.set(id, { resolve: resolveSend, reject: rejectSend, timer });
        ws.send(JSON.stringify({ id, method, params }));
      });
    }

    async function evaluate(expression) {
      const res = await send('Runtime.evaluate', {
        expression,
        returnByValue: true,
        awaitPromise: true,
      });
      return res.result ? res.result.value : undefined;
    }

    ws.onopen = () => resolve({ ws, send, evaluate, close: () => { closed = true; ws.close(); } });
    ws.onmessage = evt => {
      const msg = JSON.parse(evt.data);
      if (!msg.id || !pending.has(msg.id)) return;
      const item = pending.get(msg.id);
      pending.delete(msg.id);
      clearTimeout(item.timer);
      if (msg.error) item.reject(new Error(msg.error.message || 'CDP command failed'));
      else item.resolve(msg.result);
    };
    ws.onerror = err => failAll(new Error(err.message || 'CDP connection error'));
    ws.onclose = () => failAll(new Error('CDP connection closed'));
  });
}

async function browserSession(entry) {
  return connectCDP(entry.version.webSocketDebuggerUrl);
}

async function pageSession(target) {
  return connectCDP(target.webSocketDebuggerUrl);
}

function output(obj) {
  console.log(JSON.stringify(obj, null, 2));
}

function jsonString(expr) {
  return `JSON.stringify(expr)`;
}

async function createTarget(entry, url = 'about:blank') {
  const browser = await browserSession(entry);
  try {
    const result = await browser.send('Target.createTarget', { url });
    return result.targetId;
  } finally {
    browser.close();
  }
}

async function openOrReuseBrowseTarget(entry) {
  const pages = pageTargets(entry);
  const browse = firstTarget(pages, isBrowseTarget);
  if (browse) return browse;

  const anyQQ = firstTarget(pages, isQQMusicTarget);
  if (anyQQ) return anyQQ;

  const blank = firstTarget(pages, t => t.url === 'about:blank' || t.url.startsWith('chrome://'));
  if (blank) return blank;

  const newTargetId = await createTarget(entry, 'about:blank');
  const refreshed = await fetchJson(`entry.baseUrl/json/list`);
  return firstTarget(refreshed, t => t.id === newTargetId) || firstTarget(refreshed, t => t.url === 'about:blank') || null;
}

async function openMusicPage(entry) {
  const target = await openOrReuseBrowseTarget(entry);
  if (!target) throw new Error('No browser tab available');
  const session = await pageSession(target);
  try {
    await session.send('Page.navigate', { url: 'https://y.qq.com/' });
    await sleep(PAGE_WAIT_MS);
  } finally {
    session.close();
  }
}

function songQueryJS(keyword) {
  const q = JSON.stringify(String(keyword || '').trim().toLowerCase());
  return `
    (function() {
      const want = q;
      const items = Array.from(document.querySelectorAll('.songlist__item'));
      if (!items.length) return false, msg: "No search results"')};

      function clean(s) { return String(s || '').trim().toLowerCase().replace(/\s+/g, ''); }
      function titleOf(item) {
        const el = item.querySelector('.songlist__songname_txt a[title]');
        return el ? String(el.title || el.textContent || '').trim() : '';
      }
      function artistOf(item) {
        const el = item.querySelector('.songlist__artist a');
        return el ? String(el.title || el.textContent || '').trim() : '';
      }
      function play(item) {
        const btn = item.querySelector('.list_menu__play');
        if (btn) { btn.click(); return 'play-btn'; }
        const song = item.querySelector('.songlist__songname_txt');
        if (song) { song.dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true })); return 'dblclick'; }
        return 'none';
      }

      let chosen = items[0];
      if (want) {
        const exact = items.find(item => clean(titleOf(item)) === want);
        const contains = items.find(item => clean(titleOf(item)).includes(want));
        chosen = exact || contains || items[0];
      }

      const name = titleOf(chosen);
      const artist = artistOf(chosen);
      const method = play(chosen);
      return JSON.stringify({ ok: true, song: name, artist, results: items.length, method });
    })()
  `;
}

function firstVisibleSongJS() {
  return `
    (function() {
      const items = Array.from(document.querySelectorAll('.songlist__item'));
      if (!items.length) return JSON.stringify({ ok: false, msg: 'No songs found' });
      const idx = Math.floor(Math.random() * items.length);
      const item = items[idx];
      const nameEl = item.querySelector('.songlist__songname_txt a[title]');
      const artistEl = item.querySelector('.songlist__artist a');
      const playBtn = item.querySelector('.list_menu__play');
      const song = nameEl ? String(nameEl.title || nameEl.textContent || '').trim() : '';
      const artist = artistEl ? String(artistEl.title || artistEl.textContent || '').trim() : '';
      if (playBtn) playBtn.click(); else item.dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true }));
      return JSON.stringify({ ok: true, song, artist, index: idx, total: items.length });
    })()
  `;
}

function playlistPlayJS() {
  return `
    (function() {
      const playAll = document.querySelector('.mod_btn_green');
      if (playAll) {
        playAll.click();
        const items = Array.from(document.querySelectorAll('.songlist__item'));
        const first = items[0] ? items[0].querySelector('.songlist__songname_txt a[title]') : null;
        return JSON.stringify({ ok: true, action: 'play_all', firstSong: first ? String(first.title || '').trim() : '', total: items.length });
      }
      const items = Array.from(document.querySelectorAll('.songlist__item'));
      if (!items.length) return JSON.stringify({ ok: false, msg: 'Playlist empty or not found' });
      const btn = items[0].querySelector('.list_menu__play');
      if (btn) btn.click(); else items[0].dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true }));
      return JSON.stringify({ ok: true, action: 'first_song', total: items.length });
    })()
  `;
}

async function actionTabs() {
  const entry = await discoverEndpoint();
  output({
    browser: entry.version.Browser || entry.version['Browser'] || '',
    baseUrl: entry.baseUrl,
    tabs: pageTargets(entry).map(t => ({
      id: t.id,
      title: t.title,
      url: t.url,
      isPlayer: isPlayerTarget(t),
      isQQMusic: isQQMusicTarget(t),
    })),
  });
}

async function actionInit() {
  const entry = await discoverEndpoint();
  const browse = await openOrReuseBrowseTarget(entry);
  if (!browse) throw new Error('No browser tab available');
  output({ ok: true, baseUrl: entry.baseUrl, targetId: browse.id, url: prettyUrl(browse) });
}

async function withPlayer(fn) {
  const entry = await discoverEndpoint();
  const target = firstTarget(pageTargets(entry), isPlayerTarget);
  if (!target) return output({ error: 'Player not found. Play a song first.' });
  const session = await pageSession(target);
  try {
    return await fn(session, target, entry);
  } finally {
    session.close();
  }
}

async function withBrowse(fn) {
  const entry = await discoverEndpoint();
  const target = await openOrReuseBrowseTarget(entry);
  if (!target) throw new Error('No browser tab available');
  const session = await pageSession(target);
  try {
    return await fn(session, target, entry);
  } finally {
    session.close();
  }
}

async function actionStatus() {
  const entry = await discoverEndpoint();
  const target = firstTarget(pageTargets(entry), isPlayerTarget);
  if (!target) return output({ status: 'no_player', msg: 'QQ Music player not open.' });
  const session = await pageSession(target);
  try {
    const result = await session.evaluate(`
      (function() {
        const nameEl = document.querySelector('.player_music__name a, .player_music__name, .mod_player_song__name a');
        const artistEl = document.querySelector('.player_music__artist a, .player_music__artist, .mod_player_song__artist a');
        const timeEl = document.querySelector('.player_music__time_now');
        const durationEl = document.querySelector('.player_music__time_max, .player_music__duration');
        const playBtn = document.querySelector('.btn_big_play');
        const isPlaying = playBtn ? playBtn.classList.contains('btn_big_play--pause') : null;
        const activeSong = document.querySelector('.songlist__item--active .songlist__songname_txt a[title]');
        const activeArtist = document.querySelector('.songlist__item--active .songlist__artist a');
        return JSON.stringify({
          song: (nameEl ? nameEl.textContent.trim() : '') || (activeSong ? String(activeSong.title || '').trim() : ''),
          artist: (artistEl ? artistEl.textContent.trim() : '') || (activeArtist ? String(activeArtist.title || '').trim() : ''),
          time: timeEl ? timeEl.textContent.trim() : '',
          duration: durationEl ? durationEl.textContent.trim() : '',
          isPlaying,
          status: isPlaying === true ? 'playing' : isPlaying === false ? 'paused' : 'unknown'
        });
      })()
    `);
    output(JSON.parse(result));
  } finally {
    session.close();
  }
}

async function actionPlay() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_play');
        if (!btn) return JSON.stringify({ ok: false, msg: 'Play button not found' });
        if (!btn.classList.contains('btn_big_play--pause')) btn.click();
        return JSON.stringify({ ok: true, action: btn.classList.contains('btn_big_play--pause') ? 'already_playing' : 'resumed' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionPause() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_play');
        if (!btn) return JSON.stringify({ ok: false, msg: 'Play button not found' });
        if (btn.classList.contains('btn_big_play--pause')) btn.click();
        return JSON.stringify({ ok: true, action: btn.classList.contains('btn_big_play--pause') ? 'already_playing' : 'paused' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionToggle() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_play');
        if (!btn) return JSON.stringify({ ok: false, msg: 'Play button not found' });
        const wasPlaying = btn.classList.contains('btn_big_play--pause');
        btn.click();
        return JSON.stringify({ ok: true, action: wasPlaying ? 'pause' : 'play' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionNext() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_next, [class*=btn_next], [title="下一首"]');
        if (btn) { btn.click(); return JSON.stringify({ ok: true, action: 'next' }); }
        const btns = document.querySelectorAll('.player_music__btn');
        for (const b of btns) {
          if (b.title && b.title.includes('下一首')) { b.click(); return JSON.stringify({ ok: true, action: 'next' }); }
        }
        return JSON.stringify({ ok: false, msg: 'Next button not found' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionPrev() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.btn_big_prev, [class*=btn_prev], [title="上一首"]');
        if (btn) { btn.click(); return JSON.stringify({ ok: true, action: 'prev' }); }
        const btns = document.querySelectorAll('.player_music__btn');
        for (const b of btns) {
          if (b.title && b.title.includes('上一首')) { b.click(); return JSON.stringify({ ok: true, action: 'prev' }); }
        }
        return JSON.stringify({ ok: false, msg: 'Prev button not found' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionSearch(keyword, type = 'song') {
  await withBrowse(async session => {
    const typeMap = { song: 'song', artist: 'singer', album: 'album' };
    const t = typeMap[type] || 'song';
    const url = `https://y.qq.com/n/ryqq/search?w=encodeURIComponent(String(keyword || '').trim())&t=t`;
    await session.send('Page.navigate', { url });
    await sleep(PAGE_WAIT_MS);

    if (type === 'artist') {
      const result = await session.evaluate(`
        (function() {
          const artistLinks = document.querySelectorAll('.singer_list__item a, .search_result__singer a, .mod_singer_list a');
          if (artistLinks.length > 0) {
            const href = artistLinks[0].href || '';
            const name = String(artistLinks[0].textContent || '').trim();
            return JSON.stringify({ found: true, href, name });
          }
          const items = Array.from(document.querySelectorAll('.songlist__item'));
          if (items.length > 0) {
            const nameEl = items[0].querySelector('.songlist__songname_txt a[title]');
            const playBtn = items[0].querySelector('.list_menu__play');
            if (playBtn) playBtn.click(); else items[0].dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true }));
            return JSON.stringify({ found: true, played: nameEl ? String(nameEl.title || '').trim() : '', method: 'first_song' });
          }
          return JSON.stringify({ found: false });
        })()
      `);
      output(JSON.parse(result));
      return;
    }

    if (type === 'album') {
      const result = await session.evaluate(`
        (function() {
          const items = Array.from(document.querySelectorAll('.songlist__item'));
          if (!items.length) return JSON.stringify({ ok: false, msg: 'No results' });
          const item = items[0];
          const nameEl = item.querySelector('.songlist__songname_txt a[title]');
          const artistEl = item.querySelector('.songlist__artist a');
          const playBtn = item.querySelector('.list_menu__play');
          if (playBtn) playBtn.click(); else item.dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true }));
          return JSON.stringify({ ok: true, song: nameEl ? String(nameEl.title || '').trim() : '', artist: artistEl ? String(artistEl.title || '').trim() : '' });
        })()
      `);
      output(JSON.parse(result));
      return;
    }

    const result = await session.evaluate(songQueryJS(keyword));
    output(JSON.parse(result));
  });
}

async function actionPlayLiked(random = false) {
  await withBrowse(async session => {
    await session.send('Page.navigate', { url: 'https://y.qq.com/n/ryqq_v2/profile/like/song' });
    await sleep(PAGE_WAIT_MS);
    const result = await session.evaluate(random ? firstVisibleSongJS() : `
      (function() {
        const items = Array.from(document.querySelectorAll('.songlist__item'));
        if (!items.length) return JSON.stringify({ ok: false, msg: 'No liked songs found' });
        const item = items[0];
        const nameEl = item.querySelector('.songlist__songname_txt a[title]');
        const artistEl = item.querySelector('.songlist__artist a');
        const playBtn = item.querySelector('.list_menu__play');
        if (playBtn) playBtn.click(); else item.dispatchEvent(new MouseEvent('dblclick', { bubbles: true, cancelable: true }));
        return JSON.stringify({ ok: true, song: nameEl ? String(nameEl.title || '').trim() : '', artist: artistEl ? String(artistEl.title || '').trim() : '', index: 0, total: items.length });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionPlayPlaylist(playlistId) {
  await withBrowse(async session => {
    await session.send('Page.navigate', { url: `https://y.qq.com/n/ryqq/playlist/encodeURIComponent(String(playlistId || '').trim())` });
    await sleep(PAGE_WAIT_MS);
    const result = await session.evaluate(playlistPlayJS());
    output(JSON.parse(result));
  });
}

async function actionLike() {
  await withPlayer(async session => {
    const result = await session.evaluate(`
      (function() {
        const btn = document.querySelector('.player_music__btn_like, [class*=btn_like], [title="我喜欢"], [title="收藏"]');
        if (btn) { btn.click(); return JSON.stringify({ ok: true, action: 'liked' }); }
        const all = document.querySelectorAll('a, button, i, span');
        for (const el of all) {
          if (el.title && (el.title.includes('喜欢') || el.title.includes('收藏'))) {
            el.click();
            return JSON.stringify({ ok: true, action: 'liked', title: el.title });
          }
        }
        return JSON.stringify({ ok: false, msg: 'Like button not found' });
      })()
    `);
    output(JSON.parse(result));
  });
}

async function actionScreenshot(pathArg) {
  const entry = await discoverEndpoint();
  const target = firstTarget(pageTargets(entry), isPlayerTarget) || firstTarget(pageTargets(entry), isBrowseTarget);
  if (!target) return output({ error: 'No QQ Music tab found.' });
  const session = await pageSession(target);
  try {
    await sleep(1000);
    const result = await session.send('Page.captureScreenshot', { format: 'png' });
    const outPath = pathArg || SCREENSHOT_PATH;
    const buf = Buffer.from(result.data, 'base64');
    fs.writeFileSync(outPath, buf);
    output({ ok: true, path: outPath, bytes: buf.length });
  } finally {
    session.close();
  }
}

function printHelp() {
  output({
    usage: 'node qq-music-ctl.js <action> [args...]',
    actions: ['play','pause','toggle','next','prev','status','search <keyword>','search-artist <artist>','search-album <album>','play-liked','play-liked-random','play-playlist <id>','like','screenshot [path]','tabs','init'],
  });
}

async function main() {
  const action = process.argv[2];
  const args = process.argv.slice(3);

  if (!action || action === '--help' || action === '-h') {
    return printHelp();
  }

  switch (action) {
    case 'play': return actionPlay();
    case 'pause': return actionPause();
    case 'toggle': return actionToggle();
    case 'next': return actionNext();
    case 'prev': return actionPrev();
    case 'status': return actionStatus();
    case 'search': return actionSearch(args.join(' '), 'song');
    case 'search-artist': return actionSearch(args.join(' '), 'artist');
    case 'search-album': return actionSearch(args.join(' '), 'album');
    case 'play-liked': return actionPlayLiked(false);
    case 'play-liked-random': return actionPlayLiked(true);
    case 'play-playlist': return actionPlayPlaylist(args[0]);
    case 'like': return actionLike();
    case 'screenshot': return actionScreenshot(args[0]);
    case 'tabs': return actionTabs();
    case 'init': return actionInit();
    default:
      return printHelp();
  }
}

main().catch(err => {
  output({ error: err.message || String(err) });
  process.exit(1);
});