'use strict';

module.exports = {
  up: async (queryInterface, Sequelize) => {
    await queryInterface.createTable('zhongzhi_submissions', {
      id: {
        type: Sequelize.INTEGER,
        primaryKey: true,
        autoIncrement: true,
        allowNull: false,
        comment: '提交记录ID',
      },
      aggregation_uid: {
        type: Sequelize.INTEGER,
        allowNull: false,
        comment: '报名记录ID（关联aggregation）',
        references: { model: 'aggregation', key: 'aggregation_uid' },
        onUpdate: 'CASCADE',
        onDelete: 'CASCADE',
      },
      question_uid: {
        type: Sequelize.INTEGER,
        allowNull: false,
        comment: '题目ID（关联zhongzhi_questions）',
        references: { model: 'zhongzhi_questions', key: 'question_uid' },
        onUpdate: 'CASCADE',
        onDelete: 'CASCADE',
      },
      answer_data: {
        type: Sequelize.STRING(255),
        allowNull: true,
        comment: '提交的答案',
      },
      is_correct: {
        type: Sequelize.TINYINT,
        allowNull: true,
        comment: '是否正确：0错误 1正确',
      },
      score: {
        type: Sequelize.INTEGER,
        allowNull: true,
        comment: '得分',
      },
      word_file_path: {
        type: Sequelize.STRING(512),
        allowNull: true,
        comment: 'Word文件路径',
      },
      word_file_name: {
        type: Sequelize.STRING(255),
        allowNull: true,
        comment: 'Word文件原始名称',
      },
      word_file_md5: {
        type: Sequelize.STRING(64),
        allowNull: true,
        comment: 'Word文件MD5哈希值',
      },
      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('zhongzhi_submissions', ['aggregation_uid'], { name: 'idx_aggregation_uid' }),
        queryInterface.addIndex('zhongzhi_submissions', ['question_uid'], { name: 'idx_question_uid' }),
      ]);
    });
  },

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