'use strict';

module.exports = {
  async up(queryInterface, Sequelize) {
    await queryInterface.createTable('page_blocks', {
      id: {
        type:          Sequelize.BIGINT,
        autoIncrement: true,
        primaryKey:    true,
      },
      page_section_id: {
        type:       Sequelize.BIGINT,
        allowNull:  false,
        references: { model: 'page_sections', key: 'id' },
        onDelete:   'CASCADE',
      },
      type: {
        type:      Sequelize.ENUM('text', 'image', 'button', 'video', 'form', 'spacer'),
        allowNull: false,
      },
      content: {
        type:      Sequelize.JSON,
        allowNull: true,
        comment:   'Block payload — varies by type (e.g. src + alt for image, href + label for button).',
      },
      position: {
        type:         Sequelize.INTEGER,
        allowNull:    false,
        defaultValue: 0,
      },
      settings: {
        type:      Sequelize.JSON,
        allowNull: true,
        comment:   'Block-level style overrides: alignment, color, font size, etc.',
      },
      created_at: {
        type:         Sequelize.DATE,
        allowNull:    false,
        defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
      },
      updated_at: {
        type:         Sequelize.DATE,
        allowNull:    false,
        defaultValue: Sequelize.literal('CURRENT_TIMESTAMP'),
      },
    });

    await queryInterface.addIndex('page_blocks', { fields: ['page_section_id'], name: 'idx_page_blocks_section_id' });
    await queryInterface.addIndex('page_blocks', { fields: ['page_section_id', 'position'], name: 'idx_page_blocks_order' });
  },

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