import { MigrationInterface, QueryRunner } from 'typeorm';

export class PhaseF11MultiActInspections1789495200000 implements MigrationInterface {
  name = 'PhaseF11MultiActInspections1789495200000';

  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
      ALTER TABLE inspection_acts
      DROP CONSTRAINT IF EXISTS uq_inspection_acts_visit
    `);
    await queryRunner.query(`
      CREATE UNIQUE INDEX uq_inspection_acts_one_draft_per_visit
      ON inspection_acts (visit_id)
      WHERE status = 'DRAFT'
    `);

    await queryRunner.query(`
      ALTER TABLE inspection_reports
      DROP CONSTRAINT IF EXISTS uq_inspection_reports_visit
    `);
    await queryRunner.query(`
      CREATE INDEX idx_inspection_reports_visit_id
      ON inspection_reports (visit_id)
    `);

    await queryRunner.query(`
      ALTER TABLE inspection_act_signatures
        ADD COLUMN company_manifestation varchar(20),
        ADD COLUMN company_statement text
    `);
    await queryRunner.query(`
      UPDATE inspection_act_signatures
      SET company_manifestation = 'CONFORMITY'
      WHERE signer_type = 'COMPANY_RESPONSIBLE'
        AND status = 'SIGNED'
    `);
    await queryRunner.query(`
      ALTER TABLE inspection_act_signatures
      ADD CONSTRAINT chk_inspection_act_signatures_company_manifestation CHECK (
        (
          signer_type = 'COMPANY_RESPONSIBLE'
          AND status = 'SIGNED'
          AND company_manifestation IN ('CONFORMITY', 'DISSENT')
          AND (
            (company_manifestation = 'CONFORMITY' AND company_statement IS NULL)
            OR
            (company_manifestation = 'DISSENT' AND LENGTH(TRIM(COALESCE(company_statement, ''))) >= 10)
          )
        )
        OR
        (
          NOT (signer_type = 'COMPANY_RESPONSIBLE' AND status = 'SIGNED')
          AND company_manifestation IS NULL
          AND company_statement IS NULL
        )
      )
    `);
  }

  public async down(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
      DO $$
      BEGIN
        IF EXISTS (
          SELECT visit_id FROM inspection_acts
          GROUP BY visit_id HAVING COUNT(*) > 1
        ) THEN
          RAISE EXCEPTION 'F1.1 no puede revertirse: existen inspecciones con múltiples actas';
        END IF;
        IF EXISTS (
          SELECT visit_id FROM inspection_reports
          GROUP BY visit_id HAVING COUNT(*) > 1
        ) THEN
          RAISE EXCEPTION 'F1.1 no puede revertirse: existen inspecciones con múltiples informes';
        END IF;
        IF EXISTS (
          SELECT 1 FROM inspection_act_signatures
          WHERE company_manifestation = 'DISSENT'
        ) THEN
          RAISE EXCEPTION 'F1.1 no puede revertirse: existen firmas en disidencia';
        END IF;
      END
      $$
    `);

    await queryRunner.query(`
      ALTER TABLE inspection_act_signatures
      DROP CONSTRAINT chk_inspection_act_signatures_company_manifestation
    `);
    await queryRunner.query(`
      ALTER TABLE inspection_act_signatures
        DROP COLUMN company_statement,
        DROP COLUMN company_manifestation
    `);

    await queryRunner.query(`DROP INDEX idx_inspection_reports_visit_id`);
    await queryRunner.query(`
      ALTER TABLE inspection_reports
      ADD CONSTRAINT uq_inspection_reports_visit UNIQUE (visit_id)
    `);

    await queryRunner.query(`DROP INDEX uq_inspection_acts_one_draft_per_visit`);
    await queryRunner.query(`
      ALTER TABLE inspection_acts
      ADD CONSTRAINT uq_inspection_acts_visit UNIQUE (visit_id)
    `);
  }
}