/**
 * 设备监控管理API - 后台管理
 * 提供设备状态监控和管理功能
 */

const Framework = require("../../framework/node-core-framework.js");

module.exports = {
  /**
   * @swagger
   * /admin_api/device/list:
   *   post:
   *     summary: 获取设备列表
   *     description: 分页获取所有设备列表（管理后台）
   *     tags: [后台-设备管理]
   *     requestBody:
   *       required: true
   *       content:
   *         application/json:
   *           schema:
   *             type: object
   *             properties:
   *               page:
   *                 type: integer
   *                 description: 页码
   *               pageSize:
   *                 type: integer
   *                 description: 每页数量
   *               isOnline:
   *                 type: boolean
   *                 description: 是否在线(可选)
   *               healthStatus:
   *                 type: string
   *                 description: 健康状态(可选)
   *     responses:
   *       200:
   *         description: 获取成功
   */
  'POST /device/list': async (ctx) => {
    const models = Framework.getModels();
    const { device_status, op } = models;
    const body = ctx.getBody();
    const { isOnline, healthStatus, platform, searchText} = ctx.getBody();
    
    // 获取分页参数
    const { limit, offset } = ctx.getPageSize();

    
const where = {};
if (isOnline !== undefined) where.isOnline = isOnline;
if (healthStatus) where.healthStatus = healthStatus;
if (platform) where.platform = platform;

// 支持搜索设备名称或SN码
if (searchText) {
  where[op.or] = [
    { deviceName: { [op.like]: `%${searchText}%` } },
    { sn_code: { [op.like]: `%${searchText}%` } }
  ];
}

const result = await device_status.findAndCountAll({
  where,
  limit,
        offset,
  order: [
    ['isOnline', 'DESC'],
    ['last_modify_time', 'DESC']
  ]
});

return ctx.success({
  total: result.count,
        list: result.rows
});
    
  },

  /**
   * @swagger
   * /admin_api/device/overview:
   *   get:
   *     summary: 获取设备概览
   *     description: 获取所有设备的统计概览
   *     tags: [后台-设备管理]
   *     responses:
   *       200:
   *         description: 获取成功
   */
  'GET /device/overview': async (ctx) => {
    const models = Framework.getModels();
    const { device_status, op } = models;

    
const [
  totalDevices,
  onlineDevices,
  runningDevices,
  healthyDevices,
  warningDevices,
  errorDevices
] = await Promise.all([
  device_status.count(),
  device_status.count({ where: { isOnline: true } }),
  device_status.count({ where: { isRunning: true } }),
  device_status.count({ where: { healthStatus: 'healthy' } }),
  device_status.count({ where: { healthStatus: 'warning' } }),
  device_status.count({ where: { healthStatus: 'error' } })
]);

// 计算平均健康分数
const avgHealthScore = await device_status.findAll({
  attributes: [
    [models.sequelize.fn('AVG', models.sequelize.col('healthScore')), 'avgScore']
  ],
  raw: true
});

// 获取最近离线的设备
const recentOffline = await device_status.findAll({
  where: { isOnline: false },
  limit: 5,
  order: [['lastOfflineTime', 'DESC']],
  attributes: ['sn_code', 'deviceName', 'lastOfflineTime', 'lastError']
});

return ctx.success({
  totalDevices,
  onlineDevices,
  offlineDevices: totalDevices - onlineDevices,
  runningDevices,
  idleDevices: onlineDevices - runningDevices,
  healthyDevices,
  warningDevices,
  errorDevices,
  onlineRate: totalDevices > 0 ? ((onlineDevices / totalDevices) * 100).toFixed(2) : 0,
  healthyRate: totalDevices > 0 ? ((healthyDevices / totalDevices) * 100).toFixed(2) : 0,
  averageHealthScore: parseFloat(avgHealthScore[0]?.avgScore || 0).toFixed(2),
  recentOffline
});
    
  },

  /**
   * @swagger
   * /admin_api/device/update-config:
   *   post:
   *     summary: 更新设备配置
   *     description: 更新指定设备的配置信息
   *     tags: [后台-设备管理]
   *     requestBody:
   *       required: true
   *       content:
   *         application/json:
   *           schema:
   *             type: object
   *             required:
   *               - sn_code
   *               - config
   *             properties:
   *               sn_code:
   *                 type: string
   *                 description: 设备SN码
   *               config:
   *                 type: object
   *                 description: 配置数据
   *     responses:
   *       200:
   *         description: 更新成功
   */
  'POST /device/update-config': async (ctx) => {
    const models = Framework.getModels();
    const { device_status } = models;
    const body = ctx.getBody();
    const { sn_code, config } = body;

    if (!sn_code || !config) {
      return ctx.fail('设备SN码和配置数据不能为空');
    }

    await device_status.update({
      config: JSON.stringify(config)
    }, { where: { sn_code } });

    return ctx.success({ message: '设备配置更新成功' });
  },

  /**
   * @swagger
   * /admin_api/device/reset-error:
   *   post:
   *     summary: 重置设备错误
   *     description: 清除设备的错误信息和计数
   *     tags: [后台-设备管理]
   *     requestBody:
   *       required: true
   *       content:
   *         application/json:
   *           schema:
   *             type: object
   *             required:
   *               - sn_code
   *             properties:
   *               sn_code:
   *                 type: string
   *                 description: 设备SN码
   *     responses:
   *       200:
   *         description: 重置成功
   */
  'POST /device/reset-error': async (ctx) => {
    const models = Framework.getModels();
    const { device_status } = models;
    const body = ctx.getBody();
    const { sn_code } = body;

    if (!sn_code) {
      return ctx.fail('设备SN码不能为空');
    }

    
await device_status.update({
  lastError: '',
  errorCount: 0,
  healthStatus: 'healthy',
  healthScore: 100
}, { where: { sn_code } });

return ctx.success({ message: '设备错误已重置' });
    
  },

  /**
   * @swagger
   * /admin_api/device/delete:
   *   post:
   *     summary: 删除设备
   *     description: 删除指定的设备记录
   *     tags: [后台-设备管理]
   *     requestBody:
   *       required: true
   *       content:
   *         application/json:
   *           schema:
   *             type: object
   *             required:
   *               - sn_code
   *             properties:
   *               sn_code:
   *                 type: string
   *                 description: 设备SN码
   *     responses:
   *       200:
   *         description: 删除成功
   */
  'POST /device/delete': async (ctx) => {
    const models = Framework.getModels();
    const { device_status } = models;
    const body = ctx.getBody();
    const { sn_code } = body;

    if (!sn_code) {
      return ctx.fail('设备SN码不能为空');
    }

    
const result = await device_status.destroy({ where: { sn_code } });

if (result === 0) {
  return ctx.fail('设备不存在');
}

return ctx.success({ message: '设备删除成功' });
    
  }
};