const { DataTypes } = require('sequelize');
const sequelize = require('../config/database');

const DeviceWarning = sequelize.define('DeviceWarning', {
  id: {
    type: DataTypes.INTEGER,
    autoIncrement: true,
    primaryKey: true,
  },
  farmName: {
    type: DataTypes.STRING,
    allowNull: false,
    comment: '养殖场名称',
    field: 'farmName'
  },
  farmerName: {
    type: DataTypes.STRING,
    allowNull: false,
    comment: '养殖户名称',
    field: 'farmerName'
  },
  phone: {
    type: DataTypes.STRING,
    allowNull: false,
    comment: '联系电话',
    field: 'phone'
  },
  deviceType: {
    type: DataTypes.ENUM('智能耳标', '智能项圈', '智能主机'),
    allowNull: false,
    comment: '设备类型',
    field: 'deviceType'
  },
  deviceNumber: {
    type: DataTypes.STRING,
    allowNull: false,
    comment: '设备编号',
    field: 'deviceNumber'
  },
  alertType: {
    type: DataTypes.ENUM('设备离线', '电量不足', '信号异常', '温度异常', '其他'),
    allowNull: false,
    comment: '预警类型',
    field: 'alertType'
  },
  alertLevel: {
    type: DataTypes.ENUM('high', 'medium', 'low'),
    allowNull: false,
    defaultValue: 'medium',
    comment: '预警级别 (高, 中, 低)',
    field: 'alertLevel'
  },
  alertTime: {
    type: DataTypes.DATE,
    allowNull: false,
    defaultValue: DataTypes.NOW,
    comment: '预警时间',
    field: 'alertTime'
  },
  status: {
    type: DataTypes.ENUM('active', 'resolved', 'ignored'),
    allowNull: false,
    defaultValue: 'active',
    comment: '预警状态 (活跃, 已解决, 已忽略)',
    field: 'status'
  },
  description: {
    type: DataTypes.TEXT,
    comment: '预警描述',
  },
  location: {
    type: DataTypes.STRING,
    comment: '设备位置',
  },
  batteryLevel: {
    type: DataTypes.INTEGER,
    comment: '电池电量百分比',
  },
  signalStrength: {
    type: DataTypes.INTEGER,
    comment: '信号强度',
  },
  temperature: {
    type: DataTypes.FLOAT,
    comment: '温度值',
  },
  resolvedBy: {
    type: DataTypes.STRING,
    comment: '解决人',
  },
  resolvedAt: {
    type: DataTypes.DATE,
    comment: '解决时间',
  },
  remarks: {
    type: DataTypes.TEXT,
    comment: '备注',
  },
}, {
  tableName: 'device_warnings',
  timestamps: true,
  createdAt: 'createdAt',
  updatedAt: 'updatedAt',
  paranoid: false,
});

module.exports = DeviceWarning;