import fs from 'node:fs';
import crypto from 'node:crypto';
import path from 'node:path';
import { spawn } from 'node:child_process';
import { fileURLToPath } from 'node:url';
import express from 'express';
import { listUsagePaged, listLedgerPaged } from './pagination.mjs';

const projectRoot = path.join(path.dirname(fileURLToPath(import.meta.url)), '..');

const RESTART_ACTIONS = {
  local_restart: {
    label: 'local_restart',
    script: path.join(projectRoot, 'scripts', 'local_restart.sh'),
    logFile: path.join(projectRoot, 'adm-local-restart.log'),
    detached: true,
  },
  pro_restart: {
    label: 'pro_restart',
    script: path.join(projectRoot, 'scripts', 'pro_restart.sh'),
    logFile: path.join(projectRoot, 'adm-pro-restart.log'),
    detached: false,
  },
};

function isRestartAction(value) {
  return value === 'local_restart' || value === 'pro_restart';
}

function spawnDetachedScript({ script, logFile, delaySeconds = 0 }) {
  const stdout = fs.openSync(logFile, 'a');
  const stderr = fs.openSync(logFile, 'a');
  const command = delaySeconds > 0 ? `sleep ${delaySeconds}; exec "${script}"` : `exec "${script}"`;
  const child = spawn('bash', ['-lc', command], {
    cwd: projectRoot,
    detached: true,
    stdio: ['ignore', stdout, stderr],
    env: process.env,
  });
  child.unref();
  return child.pid ?? null;
}

function runManagedScript({ script, logFile }) {
  return new Promise((resolve, reject) => {
    const stdout = fs.openSync(logFile, 'a');
    const stderr = fs.openSync(logFile, 'a');
    let combined = '';
    const child = spawn('bash', [script], {
      cwd: projectRoot,
      env: process.env,
      stdio: ['ignore', 'pipe', 'pipe'],
    });

    child.stdout.on('data', (chunk) => {
      const text = chunk.toString();
      combined += text;
      fs.writeSync(stdout, text);
    });
    child.stderr.on('data', (chunk) => {
      const text = chunk.toString();
      combined += text;
      fs.writeSync(stderr, text);
    });
    child.on('error', reject);
    child.on('close', (code) => {
      fs.closeSync(stdout);
      fs.closeSync(stderr);
      resolve({ code: code ?? 0, output: combined.trim() });
    });
  });
}

function asyncHandler(handler) {
  return (req, res, next) => Promise.resolve(handler(req, res, next)).catch(next);
}

function wrapRouterAsync(router) {
  for (const method of ['get', 'post', 'put', 'patch', 'delete']) {
    const original = router[method].bind(router);
    router[method] = (path, ...handlers) =>
      original(
        path,
        ...handlers.map((handler) =>
          typeof handler === 'function' && handler.length < 4 ? asyncHandler(handler) : handler,
        ),
      );
  }
}

export function createAdminApp(services) {
  const {
    userAuth,
    llmProviderService,
    assetGatewayConfigService,
    pool,
    ready,
    wechatAdmin,
    loadMindSpaceConfig,
    updateMindSpaceConfig,
    memoryV2ConfigService,
    mindSearchConfigService,
    orchestratorConfigService,
    orchestratorObservabilityService,
    personalMemoryCandidateStore,
    skillRuntimeConfigService,
    wechatScheduleLlmConfigService,
    adminSystemTestService,
    systemTestAccountService,
    wordFilterService,
    planCatalogService,
    subscriptionService,
    planSyncService,
  } = services;
  const app = express();
  app.set('trust proxy', 1);

  const isSecureRequest = (req) =>
    req.secure || req.get('x-forwarded-proto')?.split(',')[0]?.trim() === 'https';
  const jsonBody = express.json({ limit: '1mb' });

  let cookieHelpers = null;
  const cookieReady = ready.then(async () => {
    cookieHelpers = {
      parseCookies: services.parseCookies,
      USER_COOKIE: services.USER_COOKIE,
      userLoginCookies: services.userLoginCookies,
      clearUserSessionCookie: services.clearUserSessionCookie,
      resolveCookieDomainForRequest: services.resolveCookieDomainForRequest,
    };
  });

  function userToken(req) {
    const { parseCookies, USER_COOKIE } = cookieHelpers;
    return parseCookies(req.get('cookie'))[USER_COOKIE];
  }

  function setUserLoginCookies(res, req, token) {
    const { userLoginCookies, resolveCookieDomainForRequest } = cookieHelpers;
    res.set(
      'Set-Cookie',
      userLoginCookies(token, isSecureRequest(req), resolveCookieDomainForRequest(req)),
    );
  }

  function clearUserLoginCookies(res, req) {
    const { clearUserSessionCookie, resolveCookieDomainForRequest } = cookieHelpers;
    res.set(
      'Set-Cookie',
      clearUserSessionCookie(isSecureRequest(req), resolveCookieDomainForRequest(req)),
    );
  }

  app.get('/health', (_req, res) => {
    res.json({ ok: true, service: 'memind_adm' });
  });

  app.get('/healthz', (_req, res) => {
    res.json({ ok: true, service: 'memind_adm' });
  });

  app.get('/auth/status', asyncHandler(async (req, res) => {
    await cookieReady;
    await ready;
    const me = await userAuth.getMe(userToken(req));
    if (!me) return res.json({ authenticated: false, mode: 'user' });
    return res.json({ authenticated: true, user: me, mode: 'user' });
  }));

  app.post('/auth/login', jsonBody, asyncHandler(async (req, res) => {
    await cookieReady;
    await ready;
    const { username, password } = req.body ?? {};
    if (!username || !password) {
      return res.status(400).json({ message: '用户名和密码不能为空' });
    }
    const result = await userAuth.login({ username, password, ip: req.ip });
    if (!result.ok) {
      if (result.retryAfterMs > 0) {
        res.set('Retry-After', String(Math.ceil(result.retryAfterMs / 1000)));
        return res.status(429).json({ message: result.message });
      }
      return res.status(401).json({ message: result.message });
    }
    setUserLoginCookies(res, req, result.token);
    return res.json({ authenticated: true, user: result.user, mode: 'user' });
  }));

  app.post('/auth/logout', asyncHandler(async (req, res) => {
    await cookieReady;
    await ready;
    await userAuth.revoke(userToken(req));
    clearUserLoginCookies(res, req);
    res.status(204).end();
  }));

  const adminApi = express.Router();
  wrapRouterAsync(adminApi);
  adminApi.use(jsonBody);

  adminApi.use(asyncHandler(async (req, res, next) => {
    await cookieReady;
    await ready;
    const me = await userAuth.getMe(userToken(req));
    if (!me) return res.status(401).json({ message: '未登录' });
    req.currentUser = me;
    next();
  }));

  const requireAdmin = (req, res, next) => {
    if (!req.currentUser || req.currentUser.role !== 'admin') {
      res.status(403).json({ message: '需要管理员权限' });
      return;
    }
    next();
  };

  function resolveSessionUser(req, res, next) {
    if (!req.currentUser) {
      res.status(401).json({ message: '未授权，请重新登录' });
      return;
    }
    next();
  }

  adminApi.get('/analytics/sso', requireAdmin, async (req, res) => {
    const sharedSecret = process.env.MEMIND_UMAMI_SSO_SECRET?.trim();
    if (!sharedSecret) return res.status(503).json({ message: '未配置 Umami 单点登录密钥' });
    const config = loadMindSpaceConfig ? await loadMindSpaceConfig(pool) : null;
    const baseUrl = String(config?.analytics?.analyticsUrl || process.env.UMAMI_URL || 'http://127.0.0.1:3100').replace(/\/$/, '');
    const username = process.env.UMAMI_SSO_USERNAME?.trim() || 'admin';
    const encoded = Buffer.from(JSON.stringify({ username, exp: Math.floor(Date.now() / 1000) + 60, nonce: crypto.randomUUID() })).toString('base64url');
    const signature = crypto.createHmac('sha256', sharedSecret).update(encoded).digest('base64url');
    res.json({ url: `${baseUrl}/auth/memind?ticket=${encoded}.${signature}` });
  });

  adminApi.get('/analytics/rybbit-sso', requireAdmin, async (_req, res) => {
    const sharedSecret = process.env.MEMIND_RYBBIT_SSO_SECRET?.trim();
    if (!sharedSecret) return res.status(503).json({ message: '未配置 Rybbit 单点登录密钥' });
    const email = process.env.RYBBIT_SSO_EMAIL?.trim().toLowerCase();
    if (!email) return res.status(503).json({ message: '未配置 Rybbit 单点登录账号' });
    const baseUrl = String(process.env.RYBBIT_URL || 'https://rybbit.tkmind.cn').replace(/\/$/, '');
    const encoded = Buffer.from(JSON.stringify({
      email,
      exp: Math.floor(Date.now() / 1000) + 60,
      nonce: crypto.randomUUID(),
    })).toString('base64url');
    const signature = crypto.createHmac('sha256', sharedSecret).update(encoded).digest('base64url');
    res.json({ url: `${baseUrl}/api/auth/memind?ticket=${encoded}.${signature}` });
  });

  adminApi.get('/users', requireAdmin, async (req, res) => {
    const result = await userAuth.listUsers({
      page: Number(req.query.page) || 1,
      pageSize: Number(req.query.pageSize) || 20,
      search: typeof req.query.search === 'string' ? req.query.search.trim() : '',
      role: typeof req.query.role === 'string' ? req.query.role.trim() : '',
      status: typeof req.query.status === 'string' ? req.query.status.trim() : '',
    });
    res.json(result);
  });

  adminApi.get('/users/:userId', requireAdmin, async (req, res) => {
    const user = await userAuth.getUserPublic(req.params.userId);
    if (!user) return res.status(404).json({ message: '用户不存在' });
    res.json({ user });
  });

  adminApi.get('/summary', requireAdmin, async (_req, res) => {
    const summary = await userAuth.getAdminSummary();
    let llm = null;
    if (llmProviderService) {
      const keys = await llmProviderService.listKeys();
      const global = await llmProviderService.getGlobalSettings();
      const selected = keys.find((key) => key.isSelected);
      llm = {
        keyCount: keys.length,
        selectedKeyName: selected?.name ?? null,
        globalModel: global?.model ?? null,
      };
    }
    res.json({ summary: { ...summary, llm } });
  });

  adminApi.post('/users', requireAdmin, async (req, res) => {
    const result = await userAuth.createUser(req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.status(201).json({ user: result.user });
  });

  adminApi.patch('/users/:userId', requireAdmin, async (req, res) => {
    const result = await userAuth.updateUser(req.params.userId, req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json({ user: result.user });
  });

  adminApi.post('/users/:userId/recharge', requireAdmin, async (req, res) => {
    const amountCents = Number(req.body?.amountCents);
    const note = typeof req.body?.note === 'string' ? req.body.note : '';
    const result = await userAuth.recharge(
      req.params.userId,
      amountCents,
      req.currentUser.id,
      note,
    );
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json({ user: result.user });
  });

  adminApi.get('/usage', requireAdmin, async (req, res) => {
    const result = await listUsagePaged(pool, req.query);
    res.json(result);
  });

  adminApi.get('/ledger', requireAdmin, async (req, res) => {
    const result = await listLedgerPaged(pool, req.query);
    res.json(result);
  });

  adminApi.get('/wechat/summary', requireAdmin, async (_req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    const summary = await wechatAdmin.getSummary();
    const scheduleLlmConfig = wechatScheduleLlmConfigService
      ? await wechatScheduleLlmConfigService.getConfig()
      : { scheduleLlmEnabled: false };
    res.json({
      ...summary,
      config: {
        ...summary.config,
        scheduleLlmEnabled: scheduleLlmConfig.scheduleLlmEnabled,
      },
    });
  });

  adminApi.patch('/wechat/schedule-llm-config', requireAdmin, async (req, res) => {
    if (!wechatScheduleLlmConfigService) {
      return res.status(503).json({ message: '服务号提醒 LLM 配置未启用' });
    }
    const result = await wechatScheduleLlmConfigService.updateConfig(req.body ?? {}, {
      updatedBy: req.currentUser.id,
    });
    res.json(result);
  });

  adminApi.get('/mindspace/config', requireAdmin, async (_req, res) => {
    if (!loadMindSpaceConfig) return res.status(503).json({ message: 'MindSpace 配置未启用' });
    const config = await loadMindSpaceConfig(pool);
    res.json({
      config,
    });
  });

  adminApi.patch('/mindspace/config', requireAdmin, async (req, res) => {
    if (!updateMindSpaceConfig) return res.status(503).json({ message: 'MindSpace 配置未启用' });
    const result = await updateMindSpaceConfig(pool, {
      publicPageLimit: req.body?.publicPageLimit,
      analytics: req.body?.analytics,
    });
    res.json({ config: result });
  });

  adminApi.get('/asset-gateway/config', requireAdmin, async (_req, res) => {
    if (!assetGatewayConfigService?.getConfig) {
      return res.status(503).json({ message: '资产能力配置服务未启用' });
    }
    res.json(await assetGatewayConfigService.getConfig());
  });

  adminApi.put('/asset-gateway/config', requireAdmin, async (req, res) => {
    if (!assetGatewayConfigService?.updateGlobalConfig) {
      return res.status(503).json({ message: '资产能力配置服务未启用' });
    }
    res.json(await assetGatewayConfigService.updateGlobalConfig(req.body ?? {}, {
      updatedBy: req.currentUser.id,
    }));
  });

  adminApi.put('/asset-gateway/plugins/:pluginId', requireAdmin, async (req, res) => {
    if (!assetGatewayConfigService?.updatePluginConfig) {
      return res.status(503).json({ message: '资产能力配置服务未启用' });
    }
    const result = await assetGatewayConfigService.updatePluginConfig(req.params.pluginId, req.body ?? {}, {
      updatedBy: req.currentUser.id,
    });
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.get('/memory-v2/config', requireAdmin, async (_req, res) => {
    if (!memoryV2ConfigService) return res.status(503).json({ message: 'Memory V2 配置未启用' });
    res.json(await memoryV2ConfigService.getAdminConfig());
  });

  adminApi.patch('/memory-v2/config', requireAdmin, async (req, res) => {
    if (!memoryV2ConfigService) return res.status(503).json({ message: 'Memory V2 配置未启用' });
    const result = await memoryV2ConfigService.updateAdminConfig(req.body ?? {}, {
      updatedBy: req.currentUser.id,
    });
    res.json(result);
  });

  adminApi.get('/mindsearch/config', requireAdmin, async (_req, res) => {
    if (!mindSearchConfigService?.getAdminConfig) return res.status(503).json({ message: 'MindSearch 配置未启用' });
    res.json(await mindSearchConfigService.getAdminConfig());
  });

  adminApi.patch('/mindsearch/config', requireAdmin, async (req, res) => {
    if (!mindSearchConfigService?.updateAdminConfig) return res.status(503).json({ message: 'MindSearch 配置未启用' });
    res.json(await mindSearchConfigService.updateAdminConfig(req.body ?? {}, { updatedBy: req.currentUser.id }));
  });

  adminApi.put('/mindsearch/config', requireAdmin, async (req, res) => {
    if (!mindSearchConfigService?.updateAdminConfig) return res.status(503).json({ message: 'MindSearch 配置未启用' });
    res.json(await mindSearchConfigService.updateAdminConfig(req.body ?? {}, { updatedBy: req.currentUser.id }));
  });

  adminApi.get('/mindsearch/runtime', requireAdmin, async (_req, res) => {
    if (!mindSearchConfigService?.getRuntimeState) return res.status(503).json({ message: 'MindSearch 配置未启用' });
    res.json(await mindSearchConfigService.getRuntimeState());
  });
  adminApi.post('/mindsearch/services/:serviceId/test', requireAdmin, async (req, res) => {
    if (!mindSearchConfigService?.testService) return res.status(503).json({ message: 'MindSearch 服务测试未启用' });
    try {
      return res.json(await mindSearchConfigService.testService(req.params.serviceId));
    } catch (error) {
      if (error?.code === 'SEARCH_SERVICE_NOT_FOUND') return res.status(404).json({ message: error.message });
      throw error;
    }
  });

  adminApi.get('/orchestrator/config', requireAdmin, async (_req, res) => {
    if (!orchestratorConfigService?.getAdminConfig) {
      return res.status(503).json({ message: 'Orchestrator 配置服务未启用' });
    }
    return res.json(await orchestratorConfigService.getAdminConfig());
  });

  const updateOrchestratorConfig = async (req, res) => {
    if (!orchestratorConfigService?.updateAdminConfig) {
      return res.status(503).json({ message: 'Orchestrator 配置服务未启用' });
    }
    return res.json(await orchestratorConfigService.updateAdminConfig(
      req.body?.config ?? req.body ?? {},
      { updatedBy: req.currentUser.id },
    ));
  };

  adminApi.put('/orchestrator/config', requireAdmin, updateOrchestratorConfig);
  adminApi.patch('/orchestrator/config', requireAdmin, updateOrchestratorConfig);

  adminApi.get('/orchestrator/runtime', requireAdmin, async (_req, res) => {
    if (!orchestratorConfigService?.getRuntimeState) {
      return res.status(503).json({ message: 'Orchestrator 配置服务未启用' });
    }
    return res.json(await orchestratorConfigService.getRuntimeState({ probe: true }));
  });

  adminApi.get('/orchestrator/shadow-runs', requireAdmin, async (req, res) => {
    if (!orchestratorObservabilityService?.listShadowRuns) {
      return res.status(503).json({ message: 'Orchestrator 观测服务未启用' });
    }
    return res.json(await orchestratorObservabilityService.listShadowRuns({
      hours: req.query.hours,
      limit: req.query.limit,
      status: req.query.status,
    }));
  });

  adminApi.get('/orchestrator/execution-plans', requireAdmin, async (req, res) => {
    if (!orchestratorObservabilityService?.listExecutionPlans) {
      return res.status(503).json({ message: 'Orchestrator Dry-run 观测服务未启用' });
    }
    return res.json(await orchestratorObservabilityService.listExecutionPlans({
      hours: req.query.hours,
      limit: req.query.limit,
      selection: req.query.selection,
    }));
  });

  adminApi.get('/orchestrator/canary-readiness', requireAdmin, async (_req, res) => {
    if (!orchestratorObservabilityService?.getCanaryReadiness) {
      return res.status(503).json({ message: 'Orchestrator 观测服务未启用' });
    }
    return res.json(await orchestratorObservabilityService.getCanaryReadiness());
  });

  adminApi.get('/orchestrator/shadow-runs/:runId', requireAdmin, async (req, res) => {
    if (!orchestratorObservabilityService?.getShadowRun) {
      return res.status(503).json({ message: 'Orchestrator 观测服务未启用' });
    }
    const result = await orchestratorObservabilityService.getShadowRun(req.params.runId);
    if (!result) return res.status(404).json({ message: 'Shadow run 不存在' });
    return res.json(result);
  });

  adminApi.get('/memory-v2/status', requireAdmin, async (_req, res) => {
    const portalBaseUrl = `http://127.0.0.1:${process.env.H5_PORT ?? 8081}`;
    try {
      const response = await fetch(`${portalBaseUrl}/api/runtime/status`, {
        headers: { accept: 'application/json' },
        signal: AbortSignal.timeout(2500),
      });
      if (!response.ok) {
        return res.status(502).json({
          ok: false,
          message: `Memory V2 运行时状态返回 HTTP ${response.status}`,
        });
      }
      const payload = await response.json();
      return res.json({
        ok: true,
        checkedAt: Date.now(),
        memory: payload?.memory ?? null,
      });
    } catch (err) {
      return res.status(503).json({
        ok: false,
        checkedAt: Date.now(),
        message: err instanceof Error ? err.message : 'Memory V2 运行时不可用',
      });
    }
  });

  adminApi.get('/memory-v2/candidates', requireAdmin, async (req, res) => {
    if (!personalMemoryCandidateStore?.listCandidates) {
      return res.status(503).json({ message: '候选记忆存储未启用' });
    }
    try {
      const status = String(req.query.status ?? 'candidate');
      const userId = String(req.query.userId ?? '').trim() || null;
      const limit = Number(req.query.limit ?? 50);
      const [items, counts] = await Promise.all([
        personalMemoryCandidateStore.listCandidates({ status, userId, limit }),
        personalMemoryCandidateStore.countByStatus(),
      ]);
      return res.json({ items, counts });
    } catch (err) {
      const missingTable = err?.code === 'ER_NO_SUCH_TABLE';
      return res.status(missingTable ? 503 : 400).json({
        message: missingTable ? '候选记忆表尚未执行本地迁移' : (err instanceof Error ? err.message : '候选记忆读取失败'),
      });
    }
  });

  adminApi.post('/memory-v2/candidates/:id/accept', requireAdmin, async (req, res) => {
    if (!personalMemoryCandidateStore?.reviewCandidate) {
      return res.status(503).json({ message: '候选记忆存储未启用' });
    }
    const result = await personalMemoryCandidateStore.reviewCandidate(req.params.id, 'accepted', {
      reviewedBy: req.currentUser.id,
    });
    if (!result.updated) return res.status(409).json({ message: '候选记忆已处理或不存在' });
    return res.json(result);
  });

  adminApi.post('/memory-v2/candidates/:id/reject', requireAdmin, async (req, res) => {
    if (!personalMemoryCandidateStore?.reviewCandidate) {
      return res.status(503).json({ message: '候选记忆存储未启用' });
    }
    const result = await personalMemoryCandidateStore.reviewCandidate(req.params.id, 'rejected', {
      reviewedBy: req.currentUser.id,
    });
    if (!result.updated) return res.status(409).json({ message: '候选记忆已处理或不存在' });
    return res.json(result);
  });

  adminApi.get('/skill-runtime/config', requireAdmin, async (_req, res) => {
    if (!skillRuntimeConfigService?.getAdminConfig) {
      return res.status(503).json({ message: 'Skill Runtime 配置服务未启用' });
    }
    res.json(await skillRuntimeConfigService.getAdminConfig());
  });

  const updateSkillRuntimeConfig = async (req, res) => {
    if (!skillRuntimeConfigService?.updateAdminConfig) {
      return res.status(503).json({ message: 'Skill Runtime 配置服务未启用' });
    }
    const result = await skillRuntimeConfigService.updateAdminConfig(req.body?.config ?? req.body ?? {}, {
      updatedBy: req.currentUser.id,
    });
    res.json(result);
  };

  adminApi.put('/skill-runtime/config', requireAdmin, updateSkillRuntimeConfig);
  adminApi.patch('/skill-runtime/config', requireAdmin, updateSkillRuntimeConfig);

  adminApi.get('/skill-runtime/catalog', requireAdmin, async (_req, res) => {
    if (!skillRuntimeConfigService?.listCatalogSummary) {
      return res.status(503).json({ message: 'Skill Runtime 配置服务未启用' });
    }
    res.json({ catalog: await skillRuntimeConfigService.listCatalogSummary() });
  });

  adminApi.get('/skill-runtime/runtime', requireAdmin, async (_req, res) => {
    if (!skillRuntimeConfigService?.getPublicRuntimeConfig) {
      return res.status(503).json({ message: 'Skill Runtime 配置服务未启用' });
    }
    res.json(await skillRuntimeConfigService.getPublicRuntimeConfig());
  });

  adminApi.get('/system-tests/accounts', requireAdmin, async (_req, res) => {
    if (!systemTestAccountService) {
      return res.status(503).json({ message: '系统测试账号服务未启用' });
    }
    const accounts = await systemTestAccountService.listAccounts();
    res.json({ accounts });
  });

  adminApi.post('/system-tests/accounts', requireAdmin, async (req, res) => {
    if (!systemTestAccountService) {
      return res.status(503).json({ message: '系统测试账号服务未启用' });
    }
    const result = await systemTestAccountService.createAccount({
      label: req.body?.label,
      username: req.body?.username,
      password: req.body?.password,
      updatedBy: req.currentUser.id,
    });
    if (!result.ok) {
      return res.status(400).json({ message: result.message ?? '保存测试账号失败' });
    }
    res.status(201).json({ account: result.account });
  });

  adminApi.delete('/system-tests/accounts/:accountId', requireAdmin, async (req, res) => {
    if (!systemTestAccountService) {
      return res.status(503).json({ message: '系统测试账号服务未启用' });
    }
    const result = await systemTestAccountService.deleteAccount(req.params.accountId);
    if (!result.ok) {
      return res.status(404).json({ message: result.message ?? '测试账号不存在' });
    }
    res.status(204).end();
  });

  adminApi.post('/system-tests/skill-validation', requireAdmin, async (req, res) => {
    if (!adminSystemTestService?.runSkillValidation) {
      return res.status(503).json({ message: '系统测试服务未启用' });
    }
    const accountId = String(req.body?.accountId ?? '').trim();
    let username = String(req.body?.username ?? '').trim();
    let password = String(req.body?.password ?? '');
    const skillName = String(req.body?.skillName ?? '').trim();
    if (accountId) {
      if (!systemTestAccountService) {
        return res.status(503).json({ message: '系统测试账号服务未启用' });
      }
      const account = await systemTestAccountService.getAccountSecret(accountId);
      if (!account) {
        return res.status(404).json({ message: '所选测试账号不存在，请刷新后重试' });
      }
      username = account.username;
      password = account.password;
    }
    if (!username || !password) {
      return res.status(400).json({ message: '请输入账号和密码' });
    }
    const result = await adminSystemTestService.runSkillValidation({
      username,
      password,
      skillName,
    });
    res.json(result);
  });

  adminApi.get('/wechat/bindings', requireAdmin, async (req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    res.json(await wechatAdmin.listBindings(req.query));
  });

  adminApi.get('/wechat/messages', requireAdmin, async (req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    res.json(await wechatAdmin.listMessages(req.query));
  });

  adminApi.get('/wechat/digests', requireAdmin, async (req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    res.json(await wechatAdmin.listDigests(req.query));
  });

  adminApi.get('/wechat/deliveries', requireAdmin, async (req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    res.json(await wechatAdmin.listDeliveries(req.query));
  });

  adminApi.get('/wechat/web-notifications', requireAdmin, async (req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    res.json(await wechatAdmin.listWebNotifications(req.query));
  });

  adminApi.post('/wechat/web-notifications', requireAdmin, async (req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    const result = await wechatAdmin.createWebNotification(req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message ?? '发送失败' });
    res.status(201).json(result);
  });

  adminApi.post('/wechat/users/:userId/route/clear', requireAdmin, async (req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    const result = await wechatAdmin.clearRouteForUser(req.params.userId);
    if (!result.ok) return res.status(404).json({ message: result.message ?? '清除失败' });
    res.json(result);
  });

  adminApi.post('/wechat/digests/:id/cancel', requireAdmin, async (req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    const result = await wechatAdmin.cancelDigest(req.params.id);
    if (!result.ok) return res.status(404).json({ message: '订阅不存在或已暂停' });
    res.json(result);
  });

  adminApi.post('/wechat/digests/:id/resume', requireAdmin, async (req, res) => {
    if (!wechatAdmin) return res.status(503).json({ message: '服务号管理未启用' });
    const result = await wechatAdmin.resumeDigest(req.params.id);
    if (!result.ok) return res.status(404).json({ message: result.message ?? '恢复失败' });
    res.json(result);
  });

  adminApi.get('/capabilities/catalog', requireAdmin, (_req, res) => {
    res.json({ catalog: userAuth.capabilityCatalog });
  });

  adminApi.get('/capabilities/role/:role', requireAdmin, async (req, res) => {
    const role = req.params.role === 'admin' ? 'admin' : 'user';
    if (role === 'admin') {
      return res.json({
        role,
        capabilities: Object.fromEntries(
          userAuth.capabilityCatalog.map((item) => [item.key, true]),
        ),
        unrestricted: true,
      });
    }
    res.json(await userAuth.getRoleCapabilities('user'));
  });

  adminApi.put('/capabilities/role/:role', requireAdmin, async (req, res) => {
    const role = req.params.role === 'admin' ? 'admin' : 'user';
    const result = await userAuth.setRoleCapabilities(role, req.body?.capabilities ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.get('/users/:userId/capabilities', requireAdmin, async (req, res) => {
    const result = await userAuth.getUserCapabilities(req.params.userId);
    if (!result.ok) return res.status(404).json({ message: result.message });
    res.json(result);
  });

  adminApi.put('/users/:userId/capabilities', requireAdmin, async (req, res) => {
    const result = await userAuth.setUserCapabilities(
      req.params.userId,
      req.body?.capabilities ?? {},
    );
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.delete('/users/:userId/capabilities', requireAdmin, async (req, res) => {
    const result = await userAuth.clearUserCapabilityOverrides(req.params.userId);
    if (!result.ok) return res.status(404).json({ message: result.message });
    res.json(result);
  });

  adminApi.get('/policies/catalog', requireAdmin, (_req, res) => {
    res.json({ catalog: userAuth.policyCatalog });
  });

  adminApi.get('/policies/role/:role', requireAdmin, async (req, res) => {
    const role = req.params.role === 'admin' ? 'admin' : 'user';
    if (role === 'admin') {
      return res.json({ role, policies: {}, unrestricted: true });
    }
    res.json(await userAuth.getRolePolicies('user'));
  });

  adminApi.put('/policies/role/:role', requireAdmin, async (req, res) => {
    const role = req.params.role === 'admin' ? 'admin' : 'user';
    const result = await userAuth.setRolePolicies(role, req.body?.policies ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.get('/users/:userId/policies', requireAdmin, async (req, res) => {
    const result = await userAuth.getUserPolicies(req.params.userId);
    if (!result.ok) return res.status(404).json({ message: result.message });
    res.json(result);
  });

  adminApi.put('/users/:userId/policies', requireAdmin, async (req, res) => {
    const result = await userAuth.setUserPolicies(req.params.userId, req.body?.policies ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.delete('/users/:userId/policies', requireAdmin, async (req, res) => {
    const result = await userAuth.clearUserPolicyOverrides(req.params.userId);
    if (!result.ok) return res.status(404).json({ message: result.message });
    res.json(result);
  });

  adminApi.get('/skills/catalog', requireAdmin, (_req, res) => {
    res.json({ catalog: userAuth.skillCatalog });
  });

  adminApi.get('/skills/role/:role', requireAdmin, async (req, res) => {
    const role = req.params.role === 'admin' ? 'admin' : 'user';
    if (role === 'admin') {
      return res.json({
        role,
        skills: Object.fromEntries(userAuth.skillCatalog.map((item) => [item.name, true])),
      });
    }
    res.json(await userAuth.getRoleSkills('user'));
  });

  adminApi.put('/skills/role/:role', requireAdmin, async (req, res) => {
    const role = req.params.role === 'admin' ? 'admin' : 'user';
    const result = await userAuth.setRoleSkills(role, req.body?.skills ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.get('/users/:userId/skills', requireAdmin, async (req, res) => {
    const result = await userAuth.getUserSkills(req.params.userId);
    if (!result.ok) return res.status(404).json({ message: result.message });
    res.json(result);
  });

  adminApi.put('/users/:userId/skills', requireAdmin, async (req, res) => {
    const result = await userAuth.setUserSkills(req.params.userId, req.body?.skills ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.delete('/users/:userId/skills', requireAdmin, async (req, res) => {
    const result = await userAuth.clearUserSkillOverrides(req.params.userId);
    if (!result.ok) return res.status(404).json({ message: result.message });
    res.json(result);
  });

  adminApi.get('/llm-providers/catalog', requireAdmin, (_req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    res.json({
      catalog: llmProviderService.catalog,
      executors: llmProviderService.executorCatalog ?? [],
    });
  });

  adminApi.get('/llm-providers/keys', requireAdmin, async (_req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    res.json({ keys: await llmProviderService.listKeys() });
  });

  adminApi.post('/llm-providers/keys', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.createKey(req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.status(201).json({ key: result.key });
  });

  adminApi.patch('/llm-providers/keys/:keyId', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.updateKey(req.params.keyId, req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json({ key: result.key });
  });

  adminApi.post('/llm-providers/keys/:keyId/select', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.selectKey(req.params.keyId);
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json({ key: result.key });
  });

  adminApi.delete('/llm-providers/keys/:keyId', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.deleteKey(req.params.keyId);
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json({ ok: true });
  });

  adminApi.post('/llm-providers/sync', requireAdmin, async (_req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    try {
      res.json(await llmProviderService.syncSelectedToGoosed());
    } catch (err) {
      res.status(500).json({ message: err instanceof Error ? err.message : '同步失败' });
    }
  });

  adminApi.get('/llm-providers/global', requireAdmin, async (_req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    res.json({ global: await llmProviderService.getGlobalSettings() });
  });

  adminApi.get('/llm-providers/vision', requireAdmin, async (_req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    res.json({ vision: await llmProviderService.getVisionSettings() });
  });

  adminApi.put('/llm-providers/vision', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.setVisionKey(req.body?.keyId, req.body?.model);
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.delete('/llm-providers/vision', requireAdmin, async (_req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.clearVisionKey();
    res.json(result);
  });

  adminApi.get('/llm-providers/executor-bindings', requireAdmin, async (_req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    res.json({ bindings: await llmProviderService.listExecutorBindings() });
  });

  adminApi.put('/llm-providers/executor-bindings/:executor', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.setExecutorBinding(req.params.executor, req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.get('/llm-providers/executor-runtime', requireAdmin, async (_req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    res.json({ runtimes: await llmProviderService.listExecutorRuntimeConfigs() });
  });

  adminApi.get('/llm-providers/executor-launch-plan', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const plans = await llmProviderService.listExecutorLaunchPlans({
      purpose: typeof req.query.purpose === 'string' ? req.query.purpose : 'default',
      mode: typeof req.query.mode === 'string' ? req.query.mode : 'serve',
      cwd: typeof req.query.cwd === 'string' ? req.query.cwd : undefined,
      instruction: typeof req.query.instruction === 'string' ? req.query.instruction : '',
      includeSecret: false,
    });
    res.json({ plans });
  });

  adminApi.get('/llm-providers/executor-launch-status', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const launches = await llmProviderService.listExecutorLaunchStates({
      purpose: typeof req.query.purpose === 'string' ? req.query.purpose : 'default',
    });
    res.json({ launches });
  });

  adminApi.post('/llm-providers/executor-launch/:executor', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.launchExecutor(req.params.executor, req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message, launch: result });
    res.json({ launch: result.launch ?? result });
  });

  adminApi.post('/llm-providers/executor-stop/:executor', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.stopExecutor(req.params.executor, req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json({ launch: result.launch });
  });

  adminApi.post('/llm-providers/executor-restart/:executor', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.restartExecutor(req.params.executor, req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message, launch: result });
    res.json({ launch: result.launch ?? result });
  });

  adminApi.post('/service-restart/:action', requireAdmin, async (req, res) => {
    const action = req.params.action;
    if (!isRestartAction(action)) {
      return res.status(400).json({ message: '仅支持 local_restart 或 pro_restart' });
    }
    const target = RESTART_ACTIONS[action];
    if (!fs.existsSync(target.script)) {
      return res.status(500).json({ message: `${target.label} 脚本不存在: ${target.script}` });
    }

    if (target.detached) {
      const pid = spawnDetachedScript({ script: target.script, logFile: target.logFile, delaySeconds: 1 });
      return res.status(202).json({
        ok: true,
        action,
        message: '已触发本机重启，当前页面会在几秒内短暂断开，请稍后刷新。',
        pid,
        logFile: target.logFile,
      });
    }

    const result = await runManagedScript({ script: target.script, logFile: target.logFile });
    if (result.code !== 0) {
      return res.status(500).json({
        ok: false,
        action,
        message: `${action} 执行失败`,
        output: result.output,
        logFile: target.logFile,
      });
    }
    return res.json({
      ok: true,
      action,
      message: '远程服务已重启',
      output: result.output,
      logFile: target.logFile,
    });
  });

  adminApi.put('/llm-providers/global', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    const result = await llmProviderService.setGlobalModel(req.body?.model);
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json(result);
  });

  adminApi.post('/llm-providers/test', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    try {
      res.json(await llmProviderService.testDraft(req.body ?? {}));
    } catch (err) {
      res.status(500).json({ ok: false, message: err instanceof Error ? err.message : '联通测试失败' });
    }
  });

  adminApi.post('/llm-providers/keys/:keyId/test', requireAdmin, async (req, res) => {
    if (!llmProviderService) return res.status(503).json({ message: '未启用 LLM 配置' });
    try {
      res.json(await llmProviderService.testKey(req.params.keyId, req.body?.model));
    } catch (err) {
      res.status(500).json({ ok: false, message: err instanceof Error ? err.message : '联通测试失败' });
    }
  });

  // ── Blocked words ─────────────────────────────────────────────────────────

  adminApi.get('/blocked-words', requireAdmin, async (_req, res) => {
    if (!wordFilterService) return res.status(503).json({ message: '词语过滤未启用' });
    const words = await wordFilterService.listBlockedWords();
    res.json({ words });
  });

  adminApi.post('/blocked-words', requireAdmin, async (req, res) => {
    if (!wordFilterService) return res.status(503).json({ message: '词语过滤未启用' });
    const result = await wordFilterService.createBlockedWord(req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.status(201).json({ blockedWord: result.blockedWord });
  });

  adminApi.patch('/blocked-words/:id', requireAdmin, async (req, res) => {
    if (!wordFilterService) return res.status(503).json({ message: '词语过滤未启用' });
    const result = await wordFilterService.updateBlockedWord(req.params.id, req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.json({ blockedWord: result.blockedWord });
  });

  adminApi.delete('/blocked-words/:id', requireAdmin, async (req, res) => {
    if (!wordFilterService) return res.status(503).json({ message: '词语过滤未启用' });
    const result = await wordFilterService.deleteBlockedWord(req.params.id);
    if (!result.ok) return res.status(404).json({ message: result.message });
    res.json({ ok: true });
  });

  // ── Subscription Plan Catalog ───────────────────────────────────────────────

  adminApi.get('/subscriptions/plans', requireAdmin, async (_req, res) => {
    if (!planCatalogService) return res.status(503).json({ message: '套餐服务未启用' });
    const plans = await planCatalogService.listPlans({ includeInactive: true });
    res.json({ plans });
  });

  const shouldSkipPlanSync = (req) => req.get('x-plan-sync-hop') === '1';

  adminApi.post('/subscriptions/plans', requireAdmin, async (req, res) => {
    if (!planCatalogService) return res.status(503).json({ message: '套餐服务未启用' });
    const { planType, ...data } = req.body ?? {};
    if (!planType) return res.status(400).json({ message: '缺少 planType' });
    const result = await planCatalogService.upsertPlan(planType, data);
    if (!result.ok) return res.status(400).json({ message: result.message });
    const sync = shouldSkipPlanSync(req) ? undefined : await planSyncService?.syncPlanUpsert(planType, result.plan);
    res.status(201).json({ plan: result.plan, sync });
  });

  adminApi.put('/subscriptions/plans/:planType', requireAdmin, async (req, res) => {
    if (!planCatalogService) return res.status(503).json({ message: '套餐服务未启用' });
    const result = await planCatalogService.upsertPlan(req.params.planType, req.body ?? {});
    if (!result.ok) return res.status(400).json({ message: result.message });
    const sync = shouldSkipPlanSync(req) ? undefined : await planSyncService?.syncPlanUpsert(req.params.planType, result.plan);
    res.json({ plan: result.plan, sync });
  });

  adminApi.delete('/subscriptions/plans/:planType', requireAdmin, async (req, res) => {
    if (!planCatalogService) return res.status(503).json({ message: '套餐服务未启用' });
    const result = await planCatalogService.deletePlan(req.params.planType);
    if (!result.ok) return res.status(400).json({ message: result.message });
    const sync = shouldSkipPlanSync(req) ? undefined : await planSyncService?.syncPlanDelete(req.params.planType);
    res.json({ ok: true, sync });
  });

  adminApi.post('/subscriptions/plans/sync-production', requireAdmin, async (_req, res) => {
    if (!planCatalogService) return res.status(503).json({ message: '套餐服务未启用' });
    if (!planSyncService?.enabled) {
      return res.status(503).json({ message: planSyncService?.reason || '未配置生产套餐同步' });
    }
    const plans = await planCatalogService.listPlans({ includeInactive: true });
    const sync = await planSyncService.syncAllPlans(plans);
    res.json({ sync });
  });

  // ── Subscription Management ─────────────────────────────────────────────────

  adminApi.get('/subscriptions', requireAdmin, async (req, res) => {
    if (!subscriptionService) return res.status(503).json({ message: '套餐服务未启用' });
    const result = await subscriptionService.listSubscriptions({
      userId: req.query.userId || null,
      status: req.query.status || null,
      page: Number(req.query.page) || 1,
      pageSize: Math.min(Number(req.query.pageSize) || 20, 100),
    });
    res.json(result);
  });

  adminApi.get('/users/:userId/subscription', requireAdmin, async (req, res) => {
    if (!subscriptionService) return res.status(503).json({ message: '套餐服务未启用' });
    const subscription = await subscriptionService.getActiveSubscription(req.params.userId);
    res.json({ subscription });
  });

  adminApi.post('/users/:userId/subscription', requireAdmin, async (req, res) => {
    if (!subscriptionService) return res.status(503).json({ message: '套餐服务未启用' });
    const { planType, durationDays, note } = req.body ?? {};
    if (!planType) return res.status(400).json({ message: '缺少 planType' });
    const result = await subscriptionService.grantSubscription(
      req.params.userId,
      planType,
      durationDays ? Number(durationDays) : undefined,
      req.currentUser.id,
      note || '',
    );
    if (!result.ok) return res.status(400).json({ message: result.message });
    res.status(201).json({ subscription: result.subscription });
  });

  adminApi.delete('/users/:userId/subscription', requireAdmin, async (req, res) => {
    if (!subscriptionService) return res.status(503).json({ message: '套餐服务未启用' });
    const result = await subscriptionService.cancelSubscription(
      req.params.userId,
      req.currentUser.id,
    );
    res.json(result);
  });

  app.use('/admin-api', adminApi);

  if (services.createOpsApi) {
    const opsApi = express.Router();
    wrapRouterAsync(opsApi);
    opsApi.use(asyncHandler(async (req, res, next) => {
      await cookieReady;
      await ready;
      const me = await userAuth.getMe(userToken(req));
      if (!me) return res.status(401).json({ message: '未授权，请重新登录' });
      req.currentUser = me;
      next();
    }));
    opsApi.use(resolveSessionUser);
    opsApi.use('/ops/v1', services.createOpsApi({ jsonBody, plazaOps: services.plazaOps }));
    app.use('/api', opsApi);
  }

  app.use((err, _req, res, _next) => {
    console.error('Admin API request failed:', err);
    if (res.headersSent) return;
    res.status(500).json({ message: err instanceof Error ? err.message : '管理后台请求失败' });
  });

  return app;
}