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

const ShareCodeLog = sequelize.define('ShareCodeLog', {
  id: {
    type: DataTypes.INTEGER,
    primaryKey: true,
    autoIncrement: true,
    comment: '主键',
  },
  mac_addr: {
    type: DataTypes.STRING(17),
    allowNull: false,
    comment: '设备 MAC 地址，如 AA:BB:CC:DD:EE:FF',
  },
  share_code: {
    type: DataTypes.CHAR(5),
    allowNull: false,
    comment: '分享码（5位字符）',
  },
  action: {
    type: DataTypes.ENUM('export', 'import'),
    allowNull: false,
    comment: '操作类型：export=导出分享码，import=导入分享码',
  },
  ip_addr: {
    type: DataTypes.STRING(45),
    allowNull: false,
    defaultValue: '',
    comment: '用户 IP 地址（支持 IPv4/IPv6）',
  },
  eq_data: {
    type: DataTypes.JSON,
    allowNull: false,
    comment: 'EQ 数据快照（JSON）',
  },
  expire_at: {
    type: DataTypes.DATE,
    allowNull: true,
    comment: '分享码到期时间（导出时快照，导入可为空）',
  },
  create_at: {
    type: DataTypes.DATE,
    allowNull: false,
    defaultValue: DataTypes.NOW,
    comment: '操作时间',
  },
}, {
  tableName: 'share_code_log',
  comment: '分享码流水表',
  indexes: [
    { name: 'idx_mac_addr', fields: ['mac_addr'] },
    { name: 'idx_share_code', fields: ['share_code'] },
    { name: 'idx_create_at', fields: ['create_at'] },
  ],
});

module.exports = ShareCodeLog;