'use strict';

module.exports = {
  async up(queryInterface, Sequelize) {
    await queryInterface.createTable('quiz_options', {
      option_id:   { type: Sequelize.BIGINT, primaryKey: true, autoIncrement: true },
      question_id: { type: Sequelize.BIGINT, allowNull: false, references: { model: 'quiz_questions', key: 'question_id' }, onDelete: 'CASCADE' },
      text:        { type: Sequelize.TEXT, allowNull: false },
      is_correct:  { type: Sequelize.BOOLEAN, defaultValue: false },
      order_index: { type: Sequelize.INTEGER, defaultValue: 0 },
      createdAt:   { type: Sequelize.DATE, allowNull: false },
      updatedAt:   { type: Sequelize.DATE, allowNull: false },
    });

    await queryInterface.addIndex('quiz_options', ['question_id']);
  },

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