import { MigrationInterface, QueryRunner } from 'typeorm';

export class PhaseD5320AutomaticWordReport1788458400000 implements MigrationInterface {
  name = 'PhaseD5320AutomaticWordReport1788458400000';

  public async up(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query(`
      ALTER TABLE inspection_reports
        ADD COLUMN word_status varchar(24) NOT NULL DEFAULT 'PENDING',
        ADD COLUMN word_original_name varchar(255),
        ADD COLUMN word_stored_name varchar(255),
        ADD COLUMN word_mime_type varchar(120),
        ADD COLUMN word_size_bytes integer,
        ADD COLUMN word_sha256 char(64),
        ADD COLUMN word_generated_at timestamptz,
        ADD COLUMN word_error varchar(500)
    `);
    await queryRunner.query(`
      ALTER TABLE inspection_reports
        ADD CONSTRAINT chk_inspection_reports_word_status
          CHECK (word_status IN ('PENDING', 'READY', 'FAILED')),
        ADD CONSTRAINT chk_inspection_reports_word_metadata
          CHECK (
            (word_status = 'READY'
              AND word_original_name IS NOT NULL
              AND word_stored_name IS NOT NULL
              AND word_mime_type = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
              AND word_size_bytes > 0
              AND word_sha256 ~ '^[0-9a-f]{64}$'
              AND word_generated_at IS NOT NULL
              AND word_error IS NULL)
            OR (word_status = 'PENDING'
              AND word_original_name IS NULL
              AND word_stored_name IS NULL
              AND word_mime_type IS NULL
              AND word_size_bytes IS NULL
              AND word_sha256 IS NULL
              AND word_generated_at IS NULL)
            OR word_status = 'FAILED'
          )
    `);
    await queryRunner.query('CREATE INDEX idx_inspection_reports_word_status ON inspection_reports (word_status, generated_at DESC)');
  }

  public async down(queryRunner: QueryRunner): Promise<void> {
    await queryRunner.query('DROP INDEX idx_inspection_reports_word_status');
    await queryRunner.query('ALTER TABLE inspection_reports DROP CONSTRAINT chk_inspection_reports_word_metadata');
    await queryRunner.query('ALTER TABLE inspection_reports DROP CONSTRAINT chk_inspection_reports_word_status');
    await queryRunner.query(`
      ALTER TABLE inspection_reports
        DROP COLUMN word_error,
        DROP COLUMN word_generated_at,
        DROP COLUMN word_sha256,
        DROP COLUMN word_size_bytes,
        DROP COLUMN word_mime_type,
        DROP COLUMN word_stored_name,
        DROP COLUMN word_original_name,
        DROP COLUMN word_status
    `);
  }
}