import { HttpException, HttpStatus } from "@nestjs/common";

/**
 * Thrown when a well-formed request violates a business rule that cannot be
 * expressed as a generic validation error.  Returns HTTP 422 with a structured
 * body so the frontend can branch on `errorCode` without string-matching the
 * human-readable `message`.
 *
 * Response body shape:
 * ```json
 * { "errorCode": "SOME_CODE", "message": "Human-readable explanation." }
 * ```
 */
export class BusinessRuleException extends HttpException {
  constructor(
    public readonly errorCode: string,
    message: string,
  ) {
    super({ errorCode, message }, HttpStatus.UNPROCESSABLE_ENTITY);
  }
}

export const BusinessErrorCode = {
  DAMAGE_EXPERT_RESEND_LIMIT_EXCEEDED: "DAMAGE_EXPERT_RESEND_LIMIT_EXCEEDED",
} as const;