const http = require('http');
const fs = require('fs');
const path = require('path');
const { URL } = require('url');
const { outputsRoot, categoryDir } = require('../core/output-paths');
const { resolveWorkspaceRoot, workspaceIdentity } = require('../core/runtime-context');
const {
  qiweiSyncExternalGroups,
  qiweiListExternalGroups,
  qiweiAnalyzeGroupMembers,
  qiweiConfirmExternalGroup,
  qiweiAddExternalGroup,
  qiweiConfigureGroupKeywords,
  qiweiRejectExternalGroup,
  qiweiSyncGroupMessages
} = require('../tools/qiwei-group-management-run');
const {
  qiweiGroupOpsGetContext,
  qiweiGroupOpsGeneratePlan,
  qiweiGroupOpsBatchGeneratePlans,
  qiweiGroupOpsReviewMessages,
  qiweiGroupOpsManagePlaybook,
  qiweiGroupOpsExecuteItem,
  qiweiGroupOpsUpdateFinding,
  qiweiGroupOpsInsights,
  qiweiGroupOpsManageTask,
  qiweiGroupOpsAutomation
} = require('../tools/qiwei-group-operations-run');
const {
  qiweiLoginStatus,
  qiweiLoginStart,
  qiweiLoginCheck,
  qiweiLoginVerify
} = require('../tools/qiwei-login-run');
const { qiweiSubscriptionStatus } = require('../tools/qiwei-subscription-run');
const { createAccountConnectionMonitor } = require('../core/account-connection-monitor');
const {
  qiweiBatchAddFriends,
  qiweiCheckFriendStatus,
  qiweiGetCustomerProfile,
  qiweiAutoCreateGroup,
  qiweiUpdateCustomerInfo
} = require('../tools/qiwei-customer-ops-run');
const {
  qiweiUpdateCustomerPortrait,
  qiweiSaveCustomerPortrait,
  qiweiBatchUpdateCustomerPortrait,
  qiweiExportCustomerPortraits,
  qiweiListCustomerTags,
  qiweiListAllTags,
  qiweiAddCustomerTags,
  qiweiRemoveCustomerTags,
  qiweiSyncPersonalLabels,
  qiweiCreatePersonalLabel,
  qiweiUpdatePersonalLabel,
  qiweiDeletePersonalLabel,
  qiweiApplyPersonalLabels
} = require('../tools/qiwei-portrait-tags-run');
const {
  qiweiPreviewTransferPackage,
  qiweiExecuteTransfer
} = require('../tools/qiwei-customer-transfer-run');
const {
  getStateSection,
  rebuildStateFromOutputs
} = require('../core/dashboard-state');
const {
  switchActiveAccount,
  getAgentStatus,
  getAllowlistCandidates,
  updateAllowlist,
  getConversations,
  getResponseMonitor,
  getGroupAgents,
  changeGroupMode,
  generateGroupReply,
  approveGroupDraft,
  rejectGroupDraft,
  regenerateGroupDraft,
  syncConversations,
  changeGlobalMode,
  changeConversationMode,
  approveReply,
  approveDraft,
  rejectDraft,
  regenerateDraft,
  generateLatestDraft,
  manualSend,
  getVoiceStatus,
  enrollVoice,
  revokeVoiceProfile,
  sendClonedVoice,
  getSentVoiceAudio,
  updateCustomerTask,
  syncCustomerTaskToOfficialTodo,
  updateCustomerAlert,
  getAudit,
  startListener,
  stopListener
} = require('./agent-service');
const {
  listKnowledgeTree,
  readKnowledgeFile,
  listProperties,
  getProperty,
  listSkillRegistry,
  getSkillDetail
} = require('./workspace-library-service');
const {
  getMeetingKnowledgeHub,
  syncMeetingKnowledge,
  analyzeMeetingKnowledge,
  getMeetingKnowledge
} = require('./meeting-knowledge-service');
const {
  getDocumentKnowledgeHub,
  importDocumentKnowledge,
  createDocumentKnowledge,
  analyzeDocumentKnowledge,
  refreshDocumentKnowledge,
  getDocumentKnowledge,
  getTodoKnowledgeHub,
  searchTodoUsers,
  syncTodoKnowledge,
  refreshTodoKnowledgeDetails,
  createTodoKnowledge,
  completeTodoKnowledge
} = require('./official-office-knowledge-service');
const {
  getUnifiedTaskHub,
  createUnifiedLocalTask,
  createUnifiedDiagnosisCandidate,
  updateUnifiedDiagnosisOutcome,
  updateUnifiedTask
} = require('./unified-task-service');
const {
  getCustomerMasterHub,
  updateCustomerMaster,
  updateCustomerRecommendationFeedback
} = require('./customer-master-service');
const { qiweiBusinessDiagnosis } = require('../tools/qiwei-business-diagnosis-run');

const DASHBOARD_PORT = process.env.QIWEI_DASHBOARD_PORT || 4320;
const STATIC_DIR = path.join(__dirname);
const TMP_DIR = path.join(outputsRoot(), 'tmp');
const WORKSPACE_ID = workspaceIdentity(resolveWorkspaceRoot());

const jobs = new Map();

const accountConnectionMonitor = createAccountConnectionMonitor({
  checkStatus: () => qiweiLoginStatus({}),
  recoverLogin: () => qiweiLoginCheck({ manual: true, persistConfig: false }),
  // 后台每 15 秒主动探测一次；页面读取复用最近结果，避免再次阻塞远端登录状态接口。
  cacheTtlMs: 20000
});
accountConnectionMonitor.start();
void accountConnectionMonitor.getStatus().catch(() => {});

const SUBSCRIPTION_STATUS_CACHE_TTL_MS = 2 * 60 * 1000;
let subscriptionStatusCache = null;
let subscriptionStatusCachedAt = 0;
let subscriptionStatusInFlight = null;

async function getCachedSubscriptionStatus({ force = false } = {}) {
  const fresh = subscriptionStatusCache && Date.now() - subscriptionStatusCachedAt < SUBSCRIPTION_STATUS_CACHE_TTL_MS;
  if (!force && fresh) return subscriptionStatusCache;
  if (subscriptionStatusInFlight) return subscriptionStatusInFlight;
  subscriptionStatusInFlight = qiweiSubscriptionStatus({})
    .then(result => {
      subscriptionStatusCache = result;
      subscriptionStatusCachedAt = Date.now();
      return result;
    })
    .finally(() => { subscriptionStatusInFlight = null; });
  return subscriptionStatusInFlight;
}

// Dashboard 启动后立即预热较慢的远程订阅状态，用户进入账号页时通常可直接命中缓存。
void getCachedSubscriptionStatus().catch(() => {});

const CUSTOMER_DIRECTORY_CACHE_TTL_MS = 60 * 1000;
let customerDirectoryCache = null;
let customerDirectoryCachedAt = 0;
let customerDirectoryInFlight = null;

async function buildDashboardCustomerDirectory() {
  const merged = new Map();
  const mergeCustomer = customer => {
    const externalUserId = String(customer.externalUserId || customer.customerId || '').trim();
    if (!externalUserId) return;
    const current = merged.get(externalUserId) || {};
    merged.set(externalUserId, {
      ...current,
      ...customer,
      externalUserId,
      customerId: customer.customerId || current.customerId || externalUserId,
      name: customer.name || customer.displayName || current.name || '',
      phone: customer.phone || current.phone || '',
      tags: Array.isArray(customer.tags) ? customer.tags : (current.tags || []),
      hasPortrait: customer.hasPortrait !== undefined
        ? Boolean(customer.hasPortrait)
        : Boolean((customer.fields || current.fields || []).length || current.hasPortrait),
    });
  };

  try {
    const allowlist = await getAllowlistCandidates();
    for (const contact of allowlist.data?.contacts || []) {
      mergeCustomer({
        externalUserId: contact.id,
        name: contact.displayName,
        selected: contact.selected === true,
        friendRequestStatus: 'ACCEPTED',
        source: 'qiwei-contact',
      });
    }
  } catch {
    // Local and conversation-backed customers remain available during a remote outage.
  }

  const local = getStateSection('customers');
  for (const customer of Object.values(local.customers || {})) mergeCustomer(customer);

  const master = getCustomerMasterHub();
  for (const customer of master.data?.customers || []) {
    mergeCustomer({
      ...customer,
      name: customer.displayName,
      hasPortrait: Array.isArray(customer.fields) && customer.fields.length > 0,
    });
  }

  return Array.from(merged.values());
}

async function getDashboardCustomerDirectory({ force = false } = {}) {
  const fresh = customerDirectoryCache && Date.now() - customerDirectoryCachedAt < CUSTOMER_DIRECTORY_CACHE_TTL_MS;
  if (!force && fresh) return customerDirectoryCache;
  if (customerDirectoryInFlight) return customerDirectoryInFlight;
  customerDirectoryInFlight = buildDashboardCustomerDirectory()
    .then(customers => {
      customerDirectoryCache = customers;
      customerDirectoryCachedAt = Date.now();
      return customers;
    })
    .finally(() => { customerDirectoryInFlight = null; });
  return customerDirectoryInFlight;
}

// 预热共享客户目录，画像、交接和客户选择器进入时可直接复用。
void getDashboardCustomerDirectory().catch(() => {});

function ensureTmpDir() {
  fs.mkdirSync(TMP_DIR, { recursive: true });
}

function readBody(req, maxBytes = 30 * 1024 * 1024) {
  return new Promise((resolve, reject) => {
    const chunks = [];
    let size = 0;
    let exceeded = false;
    req.on('data', chunk => {
      if (exceeded) return;
      size += chunk.length;
      if (size > maxBytes) {
        exceeded = true;
        reject(new Error('请求内容过大'));
        return;
      }
      chunks.push(chunk);
    });
    req.on('end', () => {
      if (exceeded) return;
      try {
        resolve(JSON.parse(Buffer.concat(chunks).toString('utf8') || '{}'));
      } catch {
        resolve({});
      }
    });
    req.on('error', reject);
  });
}

function json(res, status, body) {
  res.writeHead(status, { 'Content-Type': 'application/json; charset=utf-8' });
  res.end(JSON.stringify(body));
}

function createJob(runFn) {
  const id = `${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 8)}`;
  const job = { id, status: 'running', progress: 0, result: null, error: null, startedAt: Date.now() };
  jobs.set(id, job);
  runFn()
    .then(r => { job.status = 'done'; job.progress = 100; job.result = r; })
    .catch(e => { job.status = 'error'; job.error = e.message || String(e); });
  return id;
}

function getJob(id) {
  const job = jobs.get(id);
  if (!job) return null;
  if (job.status === 'running') {
    const elapsed = Date.now() - job.startedAt;
    job.progress = Math.min(95, Math.floor((elapsed / 30000) * 100));
  }
  return job;
}

function serveStatic(req, res, filePath, contentType) {
  fs.readFile(filePath, (err, data) => {
    if (err) {
      res.writeHead(404);
      res.end('not found');
      return;
    }
    res.writeHead(200, {
      'Content-Type': contentType,
      'Cache-Control': 'no-store'
    });
    res.end(data);
  });
}

function saveUploadBody(body) {
  const base64 = String(body.data || '');
  const requestedName = path.basename(String(body.name || `upload-${Date.now()}`)).replace(/[^A-Za-z0-9._\-\u4e00-\u9fa5]/g, '_');
  const name = !requestedName || requestedName === '.' || requestedName === '..' ? `upload-${Date.now()}` : requestedName;
  if (!base64) throw new Error('缺少文件数据');
  const maxBytes = 20 * 1024 * 1024;
  if (base64.length > Math.ceil(maxBytes / 3) * 4 + 16) throw new Error('上传文件不能超过 20MB');
  ensureTmpDir();
  const buffer = Buffer.from(base64, 'base64');
  if (buffer.length > maxBytes) throw new Error('上传文件不能超过 20MB');
  const filePath = path.join(TMP_DIR, name);
  fs.writeFileSync(filePath, buffer);
  return { path: filePath };
}

async function handleUpload(req) {
  return saveUploadBody(await readBody(req));
}

function handleOutputsDownload(req, res, query) {
  const requested = String(query.path || '');
  if (!requested) {
    json(res, 400, { status: 'error', message: '缺少 path 参数' });
    return;
  }
  const resolved = path.resolve(requested);
  const root = path.resolve(outputsRoot());
  if (!resolved.startsWith(root)) {
    json(res, 403, { status: 'error', message: '禁止访问 outputs 目录之外的文件' });
    return;
  }
  if (!fs.existsSync(resolved)) {
    json(res, 404, { status: 'error', message: '文件不存在' });
    return;
  }
  const data = fs.readFileSync(resolved);
  const ext = path.extname(resolved).toLowerCase();
  const contentType = {
    '.json': 'application/json',
    '.xlsx': 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
    '.xls': 'application/vnd.ms-excel',
    '.png': 'image/png',
    '.jpg': 'image/jpeg',
    '.jpeg': 'image/jpeg',
    '.mp3': 'audio/mpeg',
    '.mp4': 'video/mp4'
  }[ext] || 'application/octet-stream';
  res.writeHead(200, {
    'Content-Type': contentType,
    'Content-Disposition': `attachment; filename="${path.basename(resolved)}"`
  });
  res.end(data);
}

function serveSentVoiceAudio(req, res, requested) {
  const resolved = path.resolve(String(requested || ''));
  const root = path.resolve(categoryDir('voice'));
  const relative = path.relative(root, resolved);
  if (!relative || relative.startsWith('..') || path.isAbsolute(relative)
    || path.basename(resolved).toLowerCase() !== 'speech.wav'
    || !relative.split(path.sep).some(part => /^\d{6}-clone-[a-z0-9-]+$/i.test(part))
    || !fs.existsSync(resolved)) {
    json(res, 404, { status: 'error', message: '已发送语音文件不存在' });
    return;
  }
  const size = fs.statSync(resolved).size;
  const range = String(req.headers.range || '').match(/^bytes=(\d*)-(\d*)$/);
  let start = 0;
  let end = size - 1;
  if (range) {
    if (range[1]) start = Number(range[1]);
    if (range[2]) end = Number(range[2]);
    if (!range[1] && range[2]) start = Math.max(0, size - Number(range[2]));
    if (!Number.isFinite(start) || !Number.isFinite(end) || start < 0 || end < start || start >= size) {
      res.writeHead(416, { 'Content-Range': `bytes */${size}` });
      res.end();
      return;
    }
    end = Math.min(end, size - 1);
  }
  const headers = {
    'Content-Type': 'audio/wav',
    'Content-Length': end - start + 1,
    'Accept-Ranges': 'bytes',
    'Cache-Control': 'private, no-store',
    'Content-Disposition': 'inline; filename="speech.wav"',
  };
  if (range) headers['Content-Range'] = `bytes ${start}-${end}/${size}`;
  res.writeHead(range ? 206 : 200, headers);
  fs.createReadStream(resolved, { start, end }).pipe(res);
}

function getContentType(filePath) {
  const ext = path.extname(filePath).toLowerCase();
  const map = {
    '.html': 'text/html; charset=utf-8',
    '.css': 'text/css; charset=utf-8',
    '.js': 'application/javascript; charset=utf-8',
    '.png': 'image/png',
    '.jpg': 'image/jpeg',
    '.jpeg': 'image/jpeg',
    '.svg': 'image/svg+xml'
  };
  return map[ext] || 'application/octet-stream';
}

async function combinedStatus({ fast = false } = {}) {
  const statusPromise = Promise.all([
    accountConnectionMonitor.getStatus(),
    getCachedSubscriptionStatus()
  ]);
  let login;
  let subscription;
  if (fast) {
    const timeout = Symbol('status-timeout');
    const result = await Promise.race([
      statusPromise,
      new Promise(resolve => setTimeout(() => resolve(timeout), 180))
    ]);
    if (result === timeout) {
      login = accountConnectionMonitor.state.lastOutput || { status: 'pending', summary: {}, data: {} };
      subscription = subscriptionStatusCache || { status: 'pending', summary: {}, data: {} };
    } else {
      [login, subscription] = result;
    }
  } else {
    [login, subscription] = await statusPromise;
  }
  const loginPending = login?.status === 'pending';
  const subscriptionPending = subscription?.status === 'pending';
  return {
    status: 'ok',
    summary: {
      authConfigured: loginPending ? null : login.status !== 'needs_auth',
      online: loginPending ? null : !!login.summary?.online,
      subscribed: subscriptionPending ? null : !!subscription.summary?.subscribed,
      loginPending,
      subscriptionPending
    },
    data: { login, subscription }
  };
}

async function handleRequest(req, res) {
  const url = new URL(req.url, 'http://localhost');
  const pathname = url.pathname;

  try {
    if (pathname === '/' || pathname === '/index.html') {
      serveStatic(req, res, path.join(STATIC_DIR, 'index.html'), 'text/html; charset=utf-8');
      return;
    }
    if (pathname.startsWith('/dashboard/')) {
      const fileName = pathname.slice('/dashboard/'.length).replace(/\.{2,}/g, '');
      const filePath = path.join(STATIC_DIR, fileName);
      if (!filePath.startsWith(STATIC_DIR)) {
        json(res, 403, { status: 'error', message: '禁止访问' });
        return;
      }
      serveStatic(req, res, filePath, getContentType(filePath));
      return;
    }
    if (pathname === '/api/health') {
      json(res, 200, { status: 'ok', data: { workspaceId: WORKSPACE_ID, port: Number(DASHBOARD_PORT) } });
      return;
    }
    if (pathname === '/api/status' && req.method === 'GET') {
      json(res, 200, await combinedStatus({ fast: url.searchParams.get('fast') === 'true' }));
      return;
    }
    if (pathname === '/api/skills' && req.method === 'GET') {
      json(res, 200, listSkillRegistry());
      return;
    }
    if (pathname === '/api/knowledge/tree' && req.method === 'GET') {
      json(res, 200, listKnowledgeTree());
      return;
    }
    if (pathname === '/api/knowledge/file' && req.method === 'GET') {
      json(res, 200, readKnowledgeFile(url.searchParams.get('id')));
      return;
    }
    if (pathname === '/api/knowledge/meetings' && req.method === 'GET') {
      json(res, 200, await getMeetingKnowledgeHub());
      return;
    }
    if (pathname === '/api/knowledge/meetings/sync' && req.method === 'POST') {
      json(res, 200, await syncMeetingKnowledge(await readBody(req)));
      return;
    }
    const meetingAnalyzeRoute = pathname.match(/^\/api\/knowledge\/meetings\/([^/]+)\/analyze$/);
    if (meetingAnalyzeRoute && req.method === 'POST') {
      json(res, 200, await analyzeMeetingKnowledge(decodeURIComponent(meetingAnalyzeRoute[1])));
      return;
    }
    const meetingDetailRoute = pathname.match(/^\/api\/knowledge\/meetings\/([^/]+)$/);
    if (meetingDetailRoute && req.method === 'GET') {
      json(res, 200, getMeetingKnowledge(decodeURIComponent(meetingDetailRoute[1])));
      return;
    }
    if (pathname === '/api/knowledge/docs' && req.method === 'GET') {
      json(res, 200, await getDocumentKnowledgeHub());
      return;
    }
    if (pathname === '/api/knowledge/docs/import' && req.method === 'POST') {
      json(res, 200, await importDocumentKnowledge(await readBody(req)));
      return;
    }
    if (pathname === '/api/knowledge/docs/create' && req.method === 'POST') {
      json(res, 200, await createDocumentKnowledge(await readBody(req)));
      return;
    }
    const documentAnalyzeRoute = pathname.match(/^\/api\/knowledge\/docs\/([^/]+)\/analyze$/);
    if (documentAnalyzeRoute && req.method === 'POST') {
      json(res, 200, await analyzeDocumentKnowledge(decodeURIComponent(documentAnalyzeRoute[1])));
      return;
    }
    const documentRefreshRoute = pathname.match(/^\/api\/knowledge\/docs\/([^/]+)\/refresh$/);
    if (documentRefreshRoute && req.method === 'POST') {
      json(res, 200, await refreshDocumentKnowledge(decodeURIComponent(documentRefreshRoute[1])));
      return;
    }
    const documentDetailRoute = pathname.match(/^\/api\/knowledge\/docs\/([^/]+)$/);
    if (documentDetailRoute && req.method === 'GET') {
      json(res, 200, getDocumentKnowledge(decodeURIComponent(documentDetailRoute[1])));
      return;
    }
    if (pathname === '/api/knowledge/todos' && req.method === 'GET') {
      json(res, 200, await getTodoKnowledgeHub());
      return;
    }
    if (pathname === '/api/knowledge/tasks' && req.method === 'GET') {
      json(res, 200, getUnifiedTaskHub());
      return;
    }
    if (pathname === '/api/knowledge/tasks/create' && req.method === 'POST') {
      json(res, 200, createUnifiedLocalTask(await readBody(req)));
      return;
    }
    if (pathname === '/api/knowledge/tasks/diagnosis-candidate' && req.method === 'POST') {
      json(res, 200, createUnifiedDiagnosisCandidate(await readBody(req)));
      return;
    }
    if (pathname === '/api/knowledge/tasks/diagnosis-feedback' && req.method === 'POST') {
      json(res, 200, updateUnifiedDiagnosisOutcome(await readBody(req)));
      return;
    }
    if (pathname === '/api/knowledge/tasks/update' && req.method === 'POST') {
      json(res, 200, await updateUnifiedTask(await readBody(req)));
      return;
    }
    if (pathname === '/api/knowledge/todos/search-users' && req.method === 'POST') {
      json(res, 200, await searchTodoUsers(await readBody(req)));
      return;
    }
    if (pathname === '/api/knowledge/todos/sync' && req.method === 'POST') {
      json(res, 200, await syncTodoKnowledge(await readBody(req)));
      return;
    }
    if (pathname === '/api/knowledge/todos/details' && req.method === 'POST') {
      json(res, 200, await refreshTodoKnowledgeDetails(await readBody(req)));
      return;
    }
    if (pathname === '/api/knowledge/todos/create' && req.method === 'POST') {
      json(res, 200, await createTodoKnowledge(await readBody(req)));
      return;
    }
    const todoCompleteRoute = pathname.match(/^\/api\/knowledge\/todos\/([^/]+)\/complete$/);
    if (todoCompleteRoute && req.method === 'POST') {
      json(res, 200, await completeTodoKnowledge(decodeURIComponent(todoCompleteRoute[1])));
      return;
    }
    if (pathname === '/api/knowledge/properties' && req.method === 'GET') {
      json(res, 200, listProperties(Object.fromEntries(url.searchParams.entries())));
      return;
    }
    const propertyRoute = pathname.match(/^\/api\/knowledge\/properties\/([^/]+)$/);
    if (propertyRoute && req.method === 'GET') {
      json(res, 200, getProperty(decodeURIComponent(propertyRoute[1])));
      return;
    }
    const skillRoute = pathname.match(/^\/api\/skills\/(.+)$/);
    if (skillRoute && req.method === 'GET') {
      json(res, 200, getSkillDetail(decodeURIComponent(skillRoute[1])));
      return;
    }
    if (pathname === '/api/agent/status' && req.method === 'GET') {
      json(res, 200, await getAgentStatus());
      return;
    }
    if (pathname === '/api/agent/voice/status' && req.method === 'GET') {
      json(res, 200, getVoiceStatus());
      return;
    }
    if (pathname === '/api/agent/voice/profile' && req.method === 'POST') {
      const body = await readBody(req);
      const upload = saveUploadBody(body);
      try {
        json(res, 200, await enrollVoice({
          filePath: upload.path,
          originalName: body.name,
          mime: body.type,
        }));
      } finally {
        fs.rmSync(upload.path, { force: true });
      }
      return;
    }
    if (pathname === '/api/agent/voice/profile' && req.method === 'DELETE') {
      json(res, 200, revokeVoiceProfile());
      return;
    }
    if (pathname === '/api/agent/allowlist' && req.method === 'GET') {
      json(res, 200, await getAllowlistCandidates());
      return;
    }
    if (pathname === '/api/agent/allowlist' && req.method === 'POST') {
      json(res, 200, updateAllowlist(await readBody(req)));
      return;
    }
    if (pathname === '/api/accounts/switch' && req.method === 'POST') {
      json(res, 200, await switchActiveAccount(await readBody(req)));
      return;
    }
    if (pathname === '/api/agent/conversations' && req.method === 'GET') {
      json(res, 200, getConversations());
      return;
    }
    if (pathname === '/api/agent/response-monitor' && req.method === 'GET') {
      json(res, 200, getResponseMonitor());
      return;
    }
    if (pathname === '/api/agent/groups' && req.method === 'GET') {
      json(res, 200, getGroupAgents());
      return;
    }
    const groupAgentModeRoute = pathname.match(/^\/api\/agent\/groups\/([^/]+)\/mode$/);
    if (groupAgentModeRoute && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, changeGroupMode(decodeURIComponent(groupAgentModeRoute[1]), body.mode, body.confirmation));
      return;
    }
    const groupAgentGenerateRoute = pathname.match(/^\/api\/agent\/groups\/([^/]+)\/generate$/);
    if (groupAgentGenerateRoute && req.method === 'POST') {
      json(res, 200, await generateGroupReply(decodeURIComponent(groupAgentGenerateRoute[1]), await readBody(req)));
      return;
    }
    const groupAgentDraftRoute = pathname.match(/^\/api\/agent\/groups\/([^/]+)\/drafts\/([^/]+)\/(approve|reject|regenerate)$/);
    if (groupAgentDraftRoute && req.method === 'POST') {
      const [, roomId, draftId, action] = groupAgentDraftRoute;
      const body = await readBody(req);
      if (action === 'approve') json(res, 200, await approveGroupDraft(decodeURIComponent(roomId), decodeURIComponent(draftId), body.content));
      else if (action === 'reject') json(res, 200, rejectGroupDraft(decodeURIComponent(roomId), decodeURIComponent(draftId), body.reason));
      else json(res, 200, await regenerateGroupDraft(decodeURIComponent(roomId), decodeURIComponent(draftId)));
      return;
    }
    if (pathname === '/api/agent/conversations/sync' && req.method === 'POST') {
      json(res, 200, await syncConversations());
      return;
    }
    if (pathname === '/api/agent/audit' && req.method === 'GET') {
      json(res, 200, getAudit(url.searchParams.get('limit')));
      return;
    }
    if (pathname === '/api/agent/mode' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, changeGlobalMode(body.mode));
      return;
    }
    if (pathname === '/api/agent/listener/start' && req.method === 'POST') {
      json(res, 200, await startListener());
      return;
    }
    if (pathname === '/api/agent/listener/stop' && req.method === 'POST') {
      json(res, 200, stopListener());
      return;
    }
    const customerTaskSyncRoute = pathname.match(/^\/api\/agent\/tasks\/([^/]+)\/sync-official$/);
    if (customerTaskSyncRoute && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await syncCustomerTaskToOfficialTodo(customerTaskSyncRoute[1], body));
      return;
    }
    const customerTaskRoute = pathname.match(/^\/api\/agent\/tasks\/([^/]+)$/);
    if (customerTaskRoute && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await updateCustomerTask(customerTaskRoute[1], body));
      return;
    }
    const customerAlertRoute = pathname.match(/^\/api\/agent\/alerts\/([^/]+)$/);
    if (customerAlertRoute && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, updateCustomerAlert(customerAlertRoute[1], body));
      return;
    }
    const agentConversationRoute = pathname.match(/^\/api\/agent\/conversations\/([^/]+)\/(takeover|resume|pause|auto|approve-reply|generate|manual-send)$/);
    if (agentConversationRoute && req.method === 'POST') {
      const [, conversationId, action] = agentConversationRoute;
      const body = await readBody(req);
      if (action === 'takeover') json(res, 200, changeConversationMode(conversationId, 'human'));
      else if (action === 'resume') json(res, 200, changeConversationMode(conversationId, 'review'));
      else if (action === 'pause') json(res, 200, changeConversationMode(conversationId, 'paused'));
      else if (action === 'auto') json(res, 200, changeConversationMode(conversationId, 'auto'));
      else if (action === 'generate') json(res, 200, await generateLatestDraft(conversationId));
      else if (action === 'manual-send') json(res, 200, await manualSend(conversationId, body.content));
      else json(res, 200, await approveReply(conversationId, body.content));
      return;
    }
    const voiceConversationRoute = pathname.match(/^\/api\/agent\/conversations\/([^/]+)\/voice-send$/);
    if (voiceConversationRoute && req.method === 'POST') {
      const [, conversationId] = voiceConversationRoute;
      const body = await readBody(req);
      json(res, 200, await sendClonedVoice(conversationId, body));
      return;
    }
    const voiceAudioRoute = pathname.match(/^\/api\/agent\/messages\/([^/]+)\/voice-audio$/);
    if (voiceAudioRoute && req.method === 'GET') {
      const audio = getSentVoiceAudio(decodeURIComponent(voiceAudioRoute[1]));
      serveSentVoiceAudio(req, res, audio.filePath);
      return;
    }
    const agentDraftRoute = pathname.match(/^\/api\/agent\/drafts\/([^/]+)\/(approve|reject|regenerate)$/);
    if (agentDraftRoute && req.method === 'POST') {
      const [, draftId, action] = agentDraftRoute;
      const body = await readBody(req);
      if (action === 'approve') json(res, 200, await approveDraft(draftId, body.content));
      else if (action === 'reject') json(res, 200, rejectDraft(draftId, body.reason));
      else json(res, 200, await regenerateDraft(draftId));
      return;
    }
    if (pathname === '/api/dashboard/summary' && req.method === 'GET') {
      json(res, 200, { status: 'ok', data: getStateSection('summary') });
      return;
    }
    if (pathname === '/api/business-diagnosis' && req.method === 'POST') {
      json(res, 200, await qiweiBusinessDiagnosis(await readBody(req)));
      return;
    }
    if (pathname === '/api/dashboard/customers/search' && req.method === 'GET') {
      const keyword = String(url.searchParams.get('keyword') || '').trim().toLowerCase();
      const hasPortrait = url.searchParams.has('hasPortrait') ? url.searchParams.get('hasPortrait') === 'true' : undefined;
      const scope = String(url.searchParams.get('scope') || '').trim();
      const forceRefresh = url.searchParams.get('refresh') === '1';
      let customers = (await getDashboardCustomerDirectory({ force: forceRefresh })).filter(customer => {
        if (scope === 'portrait' && customer.selected !== true && customer.discoveredFromGroups !== true && customer.groupStatus !== 'IN_GROUP') return false;
        if (keyword) {
          const text = `${customer.name || ''} ${customer.phone || ''} ${customer.externalUserId || ''}`.toLowerCase();
          if (!text.includes(keyword)) return false;
        }
        if (hasPortrait !== undefined && Boolean(customer.hasPortrait) !== hasPortrait) return false;
        return true;
      });
      const sortBy = url.searchParams.get('sortBy') || 'default';
      if (sortBy === 'lastActive') {
        customers.sort((a, b) => String(b.lastSeenInGroupAt || b.updatedAt || '').localeCompare(String(a.lastSeenInGroupAt || a.updatedAt || '')));
      } else if (sortBy === 'portraitDesc') {
        customers.sort((a, b) => Number(Boolean(b.hasPortrait)) - Number(Boolean(a.hasPortrait)));
      } else if (sortBy === 'portraitAsc') {
        customers.sort((a, b) => Number(Boolean(a.hasPortrait)) - Number(Boolean(b.hasPortrait)));
      } else if (sortBy === 'nameAsc') {
        customers.sort((a, b) => String(a.name || '').localeCompare(String(b.name || ''), 'zh-CN'));
      }
      const total = customers.length;
      const limit = Math.min(100, Math.max(1, Number(url.searchParams.get('limit')) || 20));
      const offset = Math.max(0, Number(url.searchParams.get('offset')) || 0);
      customers = customers.slice(offset, offset + limit);
      json(res, 200, { status: 'ok', data: { customers, total, limit, offset } });
      return;
    }
    if (pathname === '/api/dashboard/customers' && req.method === 'GET') {
      const filter = {
        keyword: url.searchParams.get('keyword') || '',
        hasPortrait: url.searchParams.has('hasPortrait') ? url.searchParams.get('hasPortrait') === 'true' : undefined,
        friendRequestStatus: url.searchParams.get('friendRequestStatus') || '',
        tag: url.searchParams.get('tag') || ''
      };
      json(res, 200, { status: 'ok', data: getStateSection('customers', { filter }) });
      return;
    }
    if (pathname === '/api/dashboard/portraits' && req.method === 'GET') {
      json(res, 200, { status: 'ok', data: getStateSection('portraits') });
      return;
    }
    if (pathname === '/api/dashboard/tags' && req.method === 'GET') {
      json(res, 200, { status: 'ok', data: getStateSection('tags') });
      return;
    }
    if (pathname === '/api/dashboard/transfers' && req.method === 'GET') {
      json(res, 200, { status: 'ok', data: getStateSection('transfers', { limit: url.searchParams.get('limit') }) });
      return;
    }
    if (pathname === '/api/dashboard/groups' && req.method === 'GET') {
      json(res, 200, { status: 'ok', data: getStateSection('groups') });
      return;
    }
    if (pathname === '/api/dashboard/operations' && req.method === 'GET') {
      json(res, 200, { status: 'ok', data: getStateSection('operations', { limit: url.searchParams.get('limit') }) });
      return;
    }
    if (pathname === '/api/dashboard/rebuild' && req.method === 'POST') {
      const state = rebuildStateFromOutputs();
      json(res, 200, { status: 'ok', data: { message: '索引已重建', summary: getStateSection('summary'), updatedAt: state.updatedAt } });
      return;
    }
    if (pathname === '/api/login/start' && req.method === 'POST') {
      const body = await readBody(req);
      const result = await qiweiLoginStart({
        flowUi: false,
        openBrowser: false,
        ...body
      });
      json(res, 200, result);
      return;
    }
    if (pathname === '/api/login/check' && req.method === 'POST') {
      const body = await readBody(req);
      const result = await qiweiLoginCheck(body);
      json(res, 200, result);
      return;
    }
    if (pathname === '/api/login/verify' && req.method === 'POST') {
      const body = await readBody(req);
      const result = await qiweiLoginVerify(body);
      json(res, 200, result);
      return;
    }
    if (pathname === '/api/groups/sync' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiSyncExternalGroups(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }
    if (pathname === '/api/groups/list' && req.method === 'GET') {
      const params = {};
      if (url.searchParams.has('keyword')) params.keyword = url.searchParams.get('keyword');
      if (url.searchParams.has('status')) params.status = url.searchParams.get('status');
      if (url.searchParams.has('source')) params.source = url.searchParams.get('source');
      if (url.searchParams.has('includeRejected')) params.includeRejected = url.searchParams.get('includeRejected') === 'true';
      json(res, 200, await qiweiListExternalGroups(params));
      return;
    }
    if (pathname === '/api/groups/analyze' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiAnalyzeGroupMembers(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }
    if (pathname === '/api/groups/confirm' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiConfirmExternalGroup(body));
      return;
    }
    if (pathname === '/api/groups/add' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiAddExternalGroup(body));
      return;
    }
    if (pathname === '/api/groups/reject' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiRejectExternalGroup(body));
      return;
    }
    if (pathname === '/api/groups/keywords' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiConfigureGroupKeywords(body));
      return;
    }
    if (pathname === '/api/groups/messages/sync' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiSyncGroupMessages(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }

    // Group Operations
    if (pathname === '/api/group-ops/overview' && req.method === 'GET') {
      json(res, 200, await qiweiGroupOpsGetContext({
        accountKey: url.searchParams.get('accountKey') || undefined,
        date: url.searchParams.get('date') || undefined
      }));
      return;
    }
    if (pathname === '/api/group-ops/playbooks' && req.method === 'GET') {
      json(res, 200, await qiweiGroupOpsManagePlaybook({ accountKey: url.searchParams.get('accountKey') || undefined, action: 'list' }));
      return;
    }
    if (pathname === '/api/group-ops/playbooks' && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsManagePlaybook({ ...(await readBody(req)), action: 'create' }));
      return;
    }
    const groupOpsPreviewRoute = pathname.match(/^\/api\/group-ops\/playbooks\/([^/]+)\/(preview|versions)$/);
    if (groupOpsPreviewRoute && req.method === 'GET') {
      json(res, 200, await qiweiGroupOpsManagePlaybook({ accountKey: url.searchParams.get('accountKey') || undefined, playbookId: groupOpsPreviewRoute[1], version: url.searchParams.get('version') ? Number(url.searchParams.get('version')) : undefined, action: groupOpsPreviewRoute[2] }));
      return;
    }
    const groupOpsVersionRoute = pathname.match(/^\/api\/group-ops\/playbooks\/([^/]+)\/versions$/);
    if (groupOpsVersionRoute && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsManagePlaybook({ ...(await readBody(req)), playbookId: groupOpsVersionRoute[1], action: 'new_version' }));
      return;
    }
    const groupOpsPublishRoute = pathname.match(/^\/api\/group-ops\/playbooks\/([^/]+)\/(publish|rollback)$/);
    if (groupOpsPublishRoute && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsManagePlaybook({ ...(await readBody(req)), playbookId: groupOpsPublishRoute[1], action: groupOpsPublishRoute[2] }));
      return;
    }
    const groupOpsPlanRoute = pathname.match(/^\/api\/group-ops\/groups\/([^/]+)\/generate-plan$/);
    if (groupOpsPlanRoute && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsGeneratePlan({ ...(await readBody(req)), roomId: decodeURIComponent(groupOpsPlanRoute[1]) }));
      return;
    }
    if (pathname === '/api/group-ops/plans/batch' && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsBatchGeneratePlans(await readBody(req)));
      return;
    }
    const groupOpsReviewRoute = pathname.match(/^\/api\/group-ops\/groups\/([^/]+)\/review$/);
    if (groupOpsReviewRoute && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsReviewMessages({ ...(await readBody(req)), roomId: decodeURIComponent(groupOpsReviewRoute[1]) }));
      return;
    }
    const groupOpsItemRoute = pathname.match(/^\/api\/group-ops\/plan-items\/([^/]+)\/(approve|reject|skip|mark-sent)$/);
    if (groupOpsItemRoute && req.method === 'POST') {
      const action = groupOpsItemRoute[2] === 'mark-sent' ? 'mark_sent' : groupOpsItemRoute[2];
      json(res, 200, await qiweiGroupOpsExecuteItem({ ...(await readBody(req)), itemId: groupOpsItemRoute[1], action }));
      return;
    }
    const groupOpsFindingRoute = pathname.match(/^\/api\/group-ops\/findings\/([^/]+)$/);
    if (groupOpsFindingRoute && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsUpdateFinding({ ...(await readBody(req)), findingId: groupOpsFindingRoute[1] }));
      return;
    }
    if (pathname === '/api/group-ops/quality-settings' && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsInsights({ ...(await readBody(req)), action: 'update_settings' }));
      return;
    }
    if (pathname === '/api/group-ops/tasks' && req.method === 'GET') {
      json(res, 200, await qiweiGroupOpsManageTask({ accountKey: url.searchParams.get('accountKey') || undefined, status: url.searchParams.get('status') || undefined, action: 'list' }));
      return;
    }
    if (pathname === '/api/group-ops/tasks' && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsManageTask({ ...(await readBody(req)), action: 'create' }));
      return;
    }
    const groupOpsTaskRoute = pathname.match(/^\/api\/group-ops\/tasks\/([^/]+)\/(update|sync-official)$/);
    if (groupOpsTaskRoute && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsManageTask({ ...(await readBody(req)), taskId: groupOpsTaskRoute[1], action: groupOpsTaskRoute[2] === 'sync-official' ? 'sync_official' : 'update' }));
      return;
    }
    if (pathname === '/api/group-ops/automation' && req.method === 'POST') {
      json(res, 200, await qiweiGroupOpsAutomation(await readBody(req)));
      return;
    }

    // Customer Operations
    if (pathname === '/api/customers' && req.method === 'GET') {
      json(res, 200, getCustomerMasterHub());
      return;
    }
    const customerMasterRoute = pathname.match(/^\/api\/customers\/([^/]+)\/profile$/);
    if (customerMasterRoute && req.method === 'POST') {
      json(res, 200, updateCustomerMaster(decodeURIComponent(customerMasterRoute[1]), await readBody(req)));
      return;
    }
    const customerRecommendationRoute = pathname.match(/^\/api\/customers\/([^/]+)\/recommendations\/([^/]+)$/);
    if (customerRecommendationRoute && req.method === 'POST') {
      json(res, 200, updateCustomerRecommendationFeedback(decodeURIComponent(customerRecommendationRoute[1]), decodeURIComponent(customerRecommendationRoute[2]), await readBody(req)));
      return;
    }
    if (pathname === '/api/customer-ops/batch-add-friends' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiBatchAddFriends(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }
    if (pathname === '/api/customer-ops/check-friend-status' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiCheckFriendStatus(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }
    if (pathname === '/api/customer-ops/customer-profile' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiGetCustomerProfile(body));
      return;
    }
    if (pathname === '/api/customer-ops/update' && req.method === 'POST') {
      json(res, 200, await qiweiUpdateCustomerInfo(await readBody(req)));
      return;
    }
    if (pathname === '/api/customer-ops/auto-create-group' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiAutoCreateGroup(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }

    // Portraits & Tags
    if (pathname === '/api/portraits/update' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiUpdateCustomerPortrait(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }
    if (pathname === '/api/portraits/save' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiSaveCustomerPortrait(body));
      return;
    }
    if (pathname === '/api/portraits/batch' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiBatchUpdateCustomerPortrait(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }
    if (pathname === '/api/portraits/export' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiExportCustomerPortraits(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }
    if (pathname === '/api/tags/list' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiListCustomerTags(body));
      return;
    }
    if (pathname === '/api/tags/all' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiListAllTags(body));
      return;
    }
    if (pathname === '/api/tags/add' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiAddCustomerTags(body));
      return;
    }
    if (pathname === '/api/tags/remove' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiRemoveCustomerTags(body));
      return;
    }
    if (pathname === '/api/personal-labels/sync' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiSyncPersonalLabels(body));
      return;
    }
    if (pathname === '/api/personal-labels/create' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiCreatePersonalLabel(body));
      return;
    }
    if (pathname === '/api/personal-labels/update' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiUpdatePersonalLabel(body));
      return;
    }
    if (pathname === '/api/personal-labels/delete' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiDeletePersonalLabel(body));
      return;
    }
    if (pathname === '/api/personal-labels/apply' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiApplyPersonalLabels(body));
      return;
    }

    // Customer Transfers
    if (pathname === '/api/transfers/preview' && req.method === 'POST') {
      const body = await readBody(req);
      json(res, 200, await qiweiPreviewTransferPackage(body));
      return;
    }
    if (pathname === '/api/transfers/execute' && req.method === 'POST') {
      const body = await readBody(req);
      const id = createJob(() => qiweiExecuteTransfer(body));
      json(res, 200, { status: 'ok', data: { jobId: id } });
      return;
    }

    if (pathname === '/api/upload' && req.method === 'POST') {
      const result = await handleUpload(req);
      json(res, 200, { status: 'ok', data: result });
      return;
    }
    if (pathname === '/api/outputs' && req.method === 'GET') {
      handleOutputsDownload(req, res, url.searchParams);
      return;
    }
    if (pathname.startsWith('/api/jobs/') && req.method === 'GET') {
      const id = pathname.slice('/api/jobs/'.length);
      const job = getJob(id);
      if (!job) {
        json(res, 404, { status: 'error', message: '任务不存在' });
        return;
      }
      json(res, 200, { status: 'ok', data: job });
      return;
    }

    json(res, 404, { status: 'error', message: 'not found' });
  } catch (error) {
    json(res, 500, { status: 'error', message: error.message || String(error) });
  }
}

function startServer(port = DASHBOARD_PORT) {
  const server = http.createServer(handleRequest);
  return new Promise((resolve, reject) => {
    server.once('error', reject);
    server.listen(port, '127.0.0.1', () => {
      console.log(`Qiwei Dashboard 已启动：http://127.0.0.1:${port}/`);
      resolve({ server, url: `http://127.0.0.1:${port}/`, port });
    });
  });
}

if (require.main === module) {
  startServer().catch(error => {
    console.error('Dashboard 启动失败:', error);
    process.exit(1);
  });
}

module.exports = { startServer };