'use strict';

module.exports = {
  async up(queryInterface, Sequelize) {
    await queryInterface.addColumn('advertisements', 'placement', {
      type: Sequelize.STRING(100),
      allowNull: true,
    });

    await queryInterface.addIndex('advertisements', ['placement']);

    // Backfill the only two placements that were actually wired up before this
    // migration (Dashboard hero + popup). Any existing banner/sidebar rows are
    // left with placement = NULL — dev data, an admin reassigns them via the
    // edit form once the new Page/Position picker ships.
    await queryInterface.sequelize.query(`
      UPDATE advertisements SET placement = 'dashboard.hero' WHERE type = 'hero' AND placement IS NULL
    `);
    await queryInterface.sequelize.query(`
      UPDATE advertisements SET placement = 'dashboard.popup' WHERE type = 'popup' AND placement IS NULL
    `);
  },

  async down(queryInterface) {
    await queryInterface.removeIndex('advertisements', ['placement']).catch(() => {});
    await queryInterface.removeColumn('advertisements', 'placement');
  },
};