'use strict';

module.exports = {
  up: async (queryInterface, Sequelize) => {
    await queryInterface.createTable('carousel', {
      id: {
        type: Sequelize.INTEGER,
        primaryKey: true,
        autoIncrement: true,
        allowNull: false,
        comment: '轮播图ID',
      },
      image_url: {
        type: Sequelize.STRING(512),
        allowNull: false,
        comment: '图片URL',
      },
      sort_order: {
        type: Sequelize.INTEGER,
        allowNull: false,
        defaultValue: 0,
        comment: '排序序号',
      },
      link_url: {
        type: Sequelize.STRING(512),
        allowNull: true,
        comment: '点击跳转链接',
      },
      enabled: {
        type: Sequelize.TINYINT,
        allowNull: false,
        defaultValue: 1,
        comment: '是否启用：0禁用 1启用',
      },
      created_at: {
        type: Sequelize.DATE,
        allowNull: false,
        defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
        comment: '创建时间',
      },
      updated_at: {
        type: Sequelize.DATE,
        allowNull: false,
        defaultValue: Sequelize.literal('CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP'),
        comment: '更新时间',
      },
    }).then(() => {
      return Promise.all([
        queryInterface.addIndex('carousel', ['sort_order'], { name: 'idx_sort_order' }),
        queryInterface.addIndex('carousel', ['enabled'], { name: 'idx_enabled' }),
      ]);
    });
  },

  down: async (queryInterface, Sequelize) => {
    await queryInterface.dropTable('carousel');
  },
};