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

const Rental = sequelize.define('Rental', {
  id: {
    type: DataTypes.INTEGER,
    primaryKey: true,
    autoIncrement: true,
    comment: '租赁记录ID'
  },
  roomId: {
    type: DataTypes.INTEGER,
    allowNull: false,
    references: {
      model: Room,
      key: 'id'
    },
    comment: '房间ID'
  },
  renterId: {
    type: DataTypes.INTEGER,
    allowNull: false,
    references: {
      model: Renter,
      key: 'id'
    },
    comment: '租客ID'
  },
  startDate: {
    type: DataTypes.DATE,
    allowNull: false,
    comment: '开始日期'
  },
  endDate: {
    type: DataTypes.DATE,
    allowNull: false,
    comment: '结束日期'
  },
  paymentType: {
    type: DataTypes.ENUM('monthly', 'quarterly', 'half_year', 'yearly'),
    allowNull: false,
    defaultValue: 'monthly',
    comment: '付租方式（monthly：月租，quarterly：季租，half_year：半年租，yearly：年租）'
  },
  rent: {
    type: DataTypes.DECIMAL(10, 2),
    allowNull: false,
    comment: '租金'
  },
  deposit: {
    type: DataTypes.DECIMAL(10, 2),
    allowNull: true,
    comment: '押金'
  },
  operator: {
    type: DataTypes.STRING(50),
    allowNull: true,
    comment: '经办人'
  },
  status: {
    type: DataTypes.ENUM('active', 'expired', 'terminated'),
    allowNull: false,
    defaultValue: 'active',
    comment: '租约状态（active：生效中，expired：已到期，terminated：提前终止）'
  },
  remark: {
    type: DataTypes.TEXT,
    allowNull: true,
    comment: '备注'
  },
  createBy: {
    type: DataTypes.INTEGER,
    allowNull: true,
    comment: '创建人ID'
  },
  createTime: {
    type: DataTypes.DATE,
    defaultValue: DataTypes.NOW,
    comment: '创建时间'
  },
  updateBy: {
    type: DataTypes.INTEGER,
    allowNull: true,
    comment: '修改人ID'
  },
  updateTime: {
    type: DataTypes.DATE,
    defaultValue: DataTypes.NOW,
    onUpdate: DataTypes.NOW,
    comment: '更新时间'
  },
  tenantId: {
    type: DataTypes.INTEGER,
    allowNull: false,
    comment: '租户ID'
  },
  isDeleted: {
    type: DataTypes.INTEGER,
    allowNull: false,
    defaultValue: 0,
    comment: '删除状态（0：未删除，1：已删除）'
  }
}, {
  tableName: 'rentals',
  timestamps: false,
  comment: '租赁表'
});

// 建立关联
Rental.belongsTo(Room, { foreignKey: 'roomId' });
Rental.belongsTo(Renter, { foreignKey: 'renterId' });

module.exports = Rental;