'use strict';

module.exports = {
  up: async (queryInterface, Sequelize) => {
    await queryInterface.createTable('gaozhi_questions', {
      question_uid: {
        type: Sequelize.INTEGER,
        primaryKey: true,
        autoIncrement: true,
        allowNull: false,
        comment: '题目唯一标识',
      },
      question: {
        type: Sequelize.TEXT,
        allowNull: false,
        comment: '题目内容',
      },
      answer: {
        type: Sequelize.STRING(32),
        allowNull: false,
        comment: '正确答案',
      },
      question_type: {
        type: Sequelize.STRING(16),
        allowNull: false,
        defaultValue: 'choice',
        comment: '题目类型：choice选择题 judge判断题',
      },
      options: {
        type: Sequelize.JSON,
        allowNull: true,
        comment: '选项（JSON格式）',
      },
      score: {
        type: Sequelize.INTEGER,
        allowNull: false,
        defaultValue: 0,
        comment: '题目分值',
      },
      sort_order: {
        type: Sequelize.INTEGER,
        allowNull: false,
        defaultValue: 0,
        comment: '排序序号',
      },
      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('gaozhi_questions', ['question_type'], { name: 'idx_question_type' }),
        queryInterface.addIndex('gaozhi_questions', ['sort_order'], { name: 'idx_sort_order' }),
      ]);
    });
  },

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