'use strict';

module.exports = {
  up: async (queryInterface, Sequelize) => {
    await queryInterface.createTable('teams', {
      team_uid: {
        type: Sequelize.INTEGER,
        primaryKey: true,
        // 注意：运行库中 teams 表真实自增主键为 id，team_uid 为非自增普通列，
        // 由应用层（importFromExcel 显式 MAX+1）赋值。故此处不声明 autoIncrement，
        // 使迁移与运行库一致，避免新建库时 team_uid 被设为自增而与运行库行为背离。
        allowNull: false,
        comment: '团队唯一标识（由应用层显式生成，非 DB 自增）',
      },
      group_name: {
        type: Sequelize.STRING(64),
        allowNull: false,
        comment: '组别名称',
      },
      team_id: {
        type: Sequelize.STRING(64),
        allowNull: false,
        unique: true,
        comment: '团队编号（唯一）',
      },
      team_number: {
        type: Sequelize.STRING(32),
        allowNull: true,
        comment: '团队序号',
      },
      address: {
        type: Sequelize.STRING(255),
        allowNull: true,
        comment: '地址',
      },
      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 queryInterface.addIndex('teams', ['group_name'], { name: 'idx_group_name' });
    });
  },

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