'use strict';

/**
 * 竞赛信息模型 - CompetitionInfo
 *
 * 存储竞赛的基本信息，包括竞赛名称和代码。
 * 表名：competition_info
 */

module.exports = app => {
  const { STRING, INTEGER, DATE } = app.Sequelize;

  const CompetitionInfo = app.model.define('competition_info', {
    // 主键，自增
    competition_uid: {
      type: INTEGER,
      primaryKey: true,
      autoIncrement: true,
      comment: '竞赛唯一标识',
    },
    // 竞赛名称
    competition_name: {
      type: STRING(200),
      allowNull: false,
      comment: '竞赛名称',
    },
    // 竞赛代码（唯一标识码）
    competition_code: {
      type: STRING(50),
      allowNull: false,
      unique: true,
      comment: '竞赛代码',
    },
    // 记录创建时间
    created_at: {
      type: DATE,
      allowNull: false,
      defaultValue: app.Sequelize.literal('CURRENT_TIMESTAMP'),
      comment: '创建时间',
    },
    // 记录更新时间
    updated_at: {
      type: DATE,
      allowNull: false,
      defaultValue: app.Sequelize.literal('CURRENT_TIMESTAMP'),
      comment: '更新时间',
    },
  }, {
    tableName: 'competition_info',
    timestamps: false,
    underscored: true,
    indexes: [
      {
        unique: true,
        fields: ['competition_code'],
      },
    ],
  });

  return CompetitionInfo;
};