'use strict';

const assert = require('assert/strict');
const fs = require('fs');
const os = require('os');
const path = require('path');

const root = fs.mkdtempSync(path.join(os.tmpdir(), 'qiwei-voice-clone-smoke-'));
process.env.QIWEI_OUTPUTS_DIR = path.join(root, 'outputs');

const {
  VoiceCloneService,
  inferVoiceTone,
  resolveTone,
  readResponseBuffer,
} = require('../mcp/src/core/voice-clone-service');
const { __testing: voiceToolTesting } = require('../mcp/src/tools/qiwei-voice-run');

function wavBuffer({ duration = 1, sampleRate = 16000, frequency = 220 } = {}) {
  const samples = Math.floor(duration * sampleRate);
  const dataSize = samples * 2;
  const buffer = Buffer.alloc(44 + dataSize);
  buffer.write('RIFF', 0);
  buffer.writeUInt32LE(36 + dataSize, 4);
  buffer.write('WAVEfmt ', 8);
  buffer.writeUInt32LE(16, 16);
  buffer.writeUInt16LE(1, 20);
  buffer.writeUInt16LE(1, 22);
  buffer.writeUInt32LE(sampleRate, 24);
  buffer.writeUInt32LE(sampleRate * 2, 28);
  buffer.writeUInt16LE(2, 32);
  buffer.writeUInt16LE(16, 34);
  buffer.write('data', 36);
  buffer.writeUInt32LE(dataSize, 40);
  for (let index = 0; index < samples; index += 1) {
    const value = Math.round(Math.sin((2 * Math.PI * frequency * index) / sampleRate) * 4000);
    buffer.writeInt16LE(value, 44 + index * 2);
  }
  return buffer;
}

async function main() {
  assert.equal(inferVoiceTone('非常抱歉给您带来了不好的体验').id, 'apology');
  assert.equal(inferVoiceTone('恭喜，您的申请已经审核通过').id, 'friendly');
  assert.equal(inferVoiceTone('提醒您，请于明天下午前提交资料').id, 'reminder');
  assert.equal(inferVoiceTone('理解您的心情，这段时间辛苦了').id, 'empathetic');
  assert.equal(inferVoiceTone('资料已经收到，我稍后回复您').id, 'natural');
  assert.equal(resolveTone('natural', '恭喜').automatic, false);
  assert.throws(() => resolveTone('angry', '测试'), /不支持/);
  assert.equal(voiceToolTesting.isPrivateAddress('127.0.0.1'), true);
  assert.equal(voiceToolTesting.isPrivateAddress('10.0.0.8'), true);
  assert.equal(voiceToolTesting.isPrivateAddress('8.8.8.8'), false);
  await assert.rejects(() => voiceToolTesting.fetchVoice('http://example.com/voice.wav'), /只允许使用/);
  await assert.rejects(
    () => readResponseBuffer(new Response('small', { headers: { 'Content-Length': String(51 * 1024 * 1024) } }), 50 * 1024 * 1024),
    /响应过大/
  );

  const referencePath = path.join(root, 'reference.wav');
  fs.writeFileSync(referencePath, wavBuffer({ duration: 6 }));
  const calls = [];
  let sendSuccess = true;
  const qiwei = {
    context: () => ({ uid: 'account-smoke', guid: 'guid-smoke' }),
    isConfigured: () => true,
    async uploadVoiceFile(filePath) {
      calls.push({ type: 'upload', filePath });
      assert.equal(fs.existsSync(filePath), true);
      return { fileId: 'file-smoke', fileAesKey: 'aes-smoke', fileSize: fs.statSync(filePath).size };
    },
    async sendVoice(toId, media) {
      calls.push({ type: 'send', toId, media });
      return sendSuccess ? { isSendSuccess: 1, msgType: 16, msgServerId: 1001 } : { isSendSuccess: 0 };
    },
  };
  const service = new VoiceCloneService({
    qiwei,
    config: {
      endpoint: 'https://tts.example/indextts2',
      apiKey: 'test-key',
      model: 'IndexTeam/IndexTTS-2',
    },
  });

  await service.enroll({ filePath: referencePath, originalName: '本人录音.wav', mime: 'audio/wav' });
  const status = service.status();
  assert.equal(status.enrolled, true);
  assert.equal(status.previewEnabled, false);
  assert.equal(status.profile.sampleRate, 16000);
  assert.ok(status.profile.duration >= 5.9 && status.profile.duration <= 6.1);
  await service.enroll({ filePath: referencePath, originalName: '本人录音-更新.wav', mime: 'audio/wav' });
  assert.equal(service.status().enrolled, true);

  const originalFetch = global.fetch;
  const generated = wavBuffer({ duration: 1.2, sampleRate: 22050, frequency: 330 });
  global.fetch = async (_url, options = {}) => {
    const payload = JSON.parse(options.body.get('payload'));
    assert.equal(payload.use_random, false);
    assert.equal([0, 3].includes(payload.emo_control_method), true);
    if (payload.emo_control_method === 3) assert.equal(payload.emo_text.includes('歉意'), true);
    assert.equal(options.body.get('stream_mode'), 'true');
    return new Response(generated, { status: 200, headers: { 'Content-Type': 'audio/wav' } });
  };

  try {
    await assert.rejects(
      service.synthesizeAndSend({ text: '未经确认', tone: 'natural', toId: 'contact-smoke' }),
      /必须获得人工确认/
    );

    const result = await service.synthesizeAndSend({
      text: '非常抱歉，我们马上为您处理。',
      tone: 'auto',
      toId: 'contact-smoke',
      confirmed: true,
    });
    assert.equal(result.tone.id, 'apology');
    assert.ok(result.duration >= 1.1 && result.duration <= 1.3);
    assert.equal(calls[0].type, 'upload');
    assert.equal(calls[1].type, 'send');
    assert.equal(calls[1].toId, 'contact-smoke');
    assert.equal(calls[1].media.voiceTime, 1);
    assert.equal(fs.existsSync(path.join(result.runDir, 'speech.wav')), true);
    assert.equal(fs.existsSync(path.join(result.runDir, 'speech.silk')), false);
    assert.match(path.basename(result.runDir), /-clone-[a-f0-9]{8}$/);
    const manifest = JSON.parse(fs.readFileSync(path.join(result.runDir, 'manifest.json'), 'utf8'));
    assert.equal(manifest.outcome, 'sent');
    assert.equal(Object.hasOwn(manifest, 'text'), false);

    sendSuccess = false;
    await assert.rejects(
      service.synthesizeAndSend({ text: '这次发送应失败', tone: 'natural', toId: 'contact-smoke', confirmed: true }),
      /未明确确认/
    );
    const retainedWavs = fs.readdirSync(path.dirname(result.runDir), { withFileTypes: true })
      .filter(item => item.isDirectory())
      .map(item => path.join(path.dirname(result.runDir), item.name, 'speech.wav'))
      .filter(filePath => fs.existsSync(filePath));
    assert.deepEqual(retainedWavs, [result.audioPath]);
  } finally {
    global.fetch = originalFetch;
  }

  service.revoke();
  assert.equal(service.status().enrolled, false);
  console.log('[ok] voice clone tone, enrollment, retained sent WAV, SILK and send orchestration');
}

main()
  .catch(error => {
    console.error(error);
    process.exitCode = 1;
  })
  .finally(() => fs.rmSync(root, { recursive: true, force: true }));