'use strict';

/** Replaces tautological vocabulary prompts in the Cebu travel lesson. */
module.exports = {
  async up(queryInterface) {
    await queryInterface.sequelize.transaction(async (transaction) => {
      const baseWhere = `
        exercise.lesson_id = lesson.id
        AND (lesson.id = 1532 OR (lesson.course_id = 1 AND lesson.lesson_number = 55))
        AND lesson.title = 'Wege & Verkehr'
      `;
      await queryInterface.sequelize.query(`
        UPDATE community.vocab_grammar_exercise AS exercise
        SET title = 'Wege & Verkehr: Fahrzeug finden',
            instruction = 'Wähle das passende Wort für die Situation.',
            question_data = '{"type":"multiple_choice","question":"Du suchst ein Fahrzeug für die Fahrt. Welches Wort passt?","options":["hunong","sakyanan","jeepney","dalan"]}'::jsonb,
            answer_data = '{"type":"multiple_choice","correctAnswer":1}'::jsonb,
            explanation = 'Sakyanan bedeutet Fahrzeug oder Auto.'
        FROM community.vocab_course_lesson AS lesson
        WHERE ${baseWhere} AND exercise.exercise_number = 1;
      `, { transaction });
      await queryInterface.sequelize.query(`
        UPDATE community.vocab_grammar_exercise AS exercise
        SET title = 'Wege & Verkehr: Mit dem Jeepney fahren',
            instruction = 'Wähle das passende Wort für die Reisesituation.',
            question_data = '{"type":"multiple_choice","question":"Du möchtest auf Cebu mit dem typischen Sammeltaxi fahren. Welches Wort passt?","options":["hunong","sakyanan","jeepney","dalan"]}'::jsonb,
            answer_data = '{"type":"multiple_choice","correctAnswer":2}'::jsonb,
            explanation = 'Ein Jeepney ist ein typisches öffentliches Sammeltaxi auf den Philippinen.'
        FROM community.vocab_course_lesson AS lesson
        WHERE ${baseWhere} AND exercise.exercise_number = 2;
      `, { transaction });
      await queryInterface.sequelize.query(`
        UPDATE community.vocab_grammar_exercise AS exercise
        SET title = 'Wege & Verkehr: Weg zum Hafen ergänzen',
            instruction = 'Jemand erklärt dir den Weg zum Hafen. Welche Richtungsangabe fehlt?',
            question_data = '{"type":"gap_fill","text":"{gap}. Tuo. Wala. Duol ra.","gaps":1}'::jsonb,
            answer_data = '{"type":"gap_fill","answers":["Diretso"]}'::jsonb,
            explanation = 'Diretso = geradeaus, tuo = rechts, wala = links und duol ra = es ist nur nah.'
        FROM community.vocab_course_lesson AS lesson
        WHERE ${baseWhere} AND exercise.exercise_number = 3;
      `, { transaction });
    });
  },

  async down() {
    // The former questions were tautological or context-free.
  }
};