// migrations/20250225000000-create-categories-table.js
'use strict';

module.exports = {
  async up(queryInterface, Sequelize) {
    await queryInterface.createTable('categories', {
      id: {
        type: Sequelize.INTEGER,
        primaryKey: true,
        autoIncrement: true
      },
      name: {
        type: Sequelize.STRING,
        allowNull: false
      },
      level: {
        type: Sequelize.INTEGER,
        defaultValue: 1
      },
      description: {
        type: Sequelize.TEXT,
        allowNull: true
      },
      parentId: {
        type: Sequelize.INTEGER,
        allowNull: true,
        references: {
          model: 'categories',
          key: 'id'
        },
        onDelete: 'CASCADE'
      },
      order: {
        type: Sequelize.INTEGER,
        defaultValue: 0
      },
      isActive: {
        type: Sequelize.BOOLEAN,
        defaultValue: true
      },
      createdAt: {
        type: Sequelize.DATE,
        allowNull: false
      },
      updatedAt: {
        type: Sequelize.DATE,
        allowNull: false
      }
    });

    // 添加索引
    await queryInterface.addIndex('categories', ['parentId']);
    await queryInterface.addIndex('categories', ['name']);
  },

  async down(queryInterface, Sequelize) {
    await queryInterface.dropTable('categories');
  }
};