'use strict';

module.exports = {
  async up(queryInterface) {
    // A legacy gap-fill hint was persisted as a vocabulary answer. The pair
    // "jetzt/heute" → "Karon naa ko diri" is not a valid translation card.
    await queryInterface.sequelize.query(`
      DELETE FROM community.vocab_srs_item
      WHERE lower(trim(learning)) = 'jetzt/heute'
        AND lower(trim(reference)) = 'karon naa ko diri';
    `);
  },

  async down() {
    // Do not restore an invalid study card.
  }
};