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

const Setting = sequelize.define('Setting', {
  id: {
    type: DataTypes.INTEGER,
    primaryKey: true,
    autoIncrement: true,
    comment: '设置ID'
  },
  key: {
    type: DataTypes.STRING(100),
    allowNull: false,
    comment: '设置键名'
  },
  value: {
    type: DataTypes.TEXT,
    allowNull: true,
    comment: '设置值'
  },
  description: {
    type: DataTypes.STRING(255),
    allowNull: true,
    comment: '设置描述'
  },
  tenantId: {
    type: DataTypes.INTEGER,
    allowNull: false,
    comment: '租户ID'
  },
  createBy: {
    type: DataTypes.INTEGER,
    allowNull: true,
    comment: '创建人ID'
  },
  updateBy: {
    type: DataTypes.INTEGER,
    allowNull: true,
    comment: '修改人ID'
  },
  createTime: {
    type: DataTypes.DATE,
    allowNull: false,
    defaultValue: DataTypes.NOW,
    comment: '创建时间'
  },
  updateTime: {
    type: DataTypes.DATE,
    allowNull: false,
    defaultValue: DataTypes.NOW,
    comment: '更新时间'
  }
}, {
  tableName: 'settings',
  timestamps: false,
  comment: '系统设置表',
  indexes: [
    {
      unique: true,
      fields: ['key', 'tenantId'],
      name: 'uk_key_tenant'
    },
    {
      fields: ['tenantId'],
      name: 'idx_tenant'
    }
  ]
});

module.exports = Setting;