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

const BillPayment = sequelize.define('BillPayment', {
  id: {
    type: DataTypes.INTEGER,
    primaryKey: true,
    autoIncrement: true,
    comment: '支付流水ID'
  },
  billId: {
    type: DataTypes.INTEGER,
    allowNull: false,
    references: {
      model: Bill,
      key: 'id'
    },
    comment: '账单ID'
  },
  amount: {
    type: DataTypes.DECIMAL(10, 2),
    allowNull: false,
    comment: '本次支付金额'
  },
  paymentMethod: {
    type: DataTypes.ENUM('cash', 'bank_transfer', 'alipay', 'wechat', 'other'),
    allowNull: false,
    comment: '支付方式（cash-现金, bank_transfer-银行转账, alipay-支付宝, wechat-微信支付, other-其他）'
  },
  paymentTime: {
    type: DataTypes.DATE,
    allowNull: false,
    comment: '支付时间'
  },
  transactionNo: {
    type: DataTypes.STRING(100),
    allowNull: true,
    comment: '交易流水号/凭证号'
  },
  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'
  },
  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: 'bill_payments',
  timestamps: false,
  comment: '账单支付流水表'
});

module.exports = BillPayment;