import { UNIQUE_QUESTION_MULTI_CHOICE } from '@/modules/questions/constants';
import { QuestionTransitionType } from '@/modules/questions/enums/question-transition-type.enum';
import { MigrationInterface, QueryRunner } from 'typeorm';

export class MultiChoiceTransitionUniqueIndex1787294625900 implements MigrationInterface {
  name = 'MultiChoiceTransitionUniqueIndex1787294625900';

  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
      CREATE UNIQUE INDEX ${UNIQUE_QUESTION_MULTI_CHOICE}
      ON "question_transition" (
        "fromQuestionId",
        "type",
        (("condition" ->> 'operator')),
        (("condition" -> 'choiceIds'))
      )
      WHERE "type" = '${QuestionTransitionType.MULTI_CHOICE}'
    `);
  }

  public async down(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
      DROP INDEX ${UNIQUE_QUESTION_MULTI_CHOICE}
    `);
  }
}