'use strict';

module.exports = {
  async up(queryInterface, Sequelize) {
    await queryInterface.createTable('lesson_pages', {
      page_id:   { type: Sequelize.BIGINT, primaryKey: true, autoIncrement: true },
      lesson_id: { type: Sequelize.BIGINT, allowNull: false, unique: true, references: { model: 'lessons', key: 'lesson_id' }, onDelete: 'CASCADE' },
      blocks:    { type: Sequelize.JSONB, allowNull: false, defaultValue: [] },
      createdBy: { type: Sequelize.BIGINT, allowNull: true },
      updatedBy: { type: Sequelize.BIGINT, allowNull: true },
      createdAt: { type: Sequelize.DATE, allowNull: false },
      updatedAt: { type: Sequelize.DATE, allowNull: false },
    });
  },

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