import { ValidationError } from 'class-validator';

import { ValidateClassType } from './types';

export type ValidateErrorProps<T = unknown> = {
  validateClass: ValidateClassType<T>;
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  payload: any;
  validateErrors: ValidationError[];
  logFirstError?: boolean;
};

export class ValidateError<T = unknown> {
  validateClass: ValidateClassType<T>;
  // eslint-disable-next-line @typescript-eslint/no-explicit-any
  payload: any;
  validateErrors: ValidationError[];
  logFirstError: boolean;

  constructor(props: ValidateErrorProps<T>) {
    Object.assign(this, {
      logFirstError: false,
      ...props,
    });
  }

  get firstErrorMessage(): string {
    const errors = this.validateErrors;
    const firstError = errors[0];
    const constraintKeys = Object.keys(firstError?.constraints || {});

    return firstError?.constraints?.[constraintKeys[0]] || '';
  }

  toJson(): Record<string, string[]> {
    const json: Record<string, string[]> = {};
    const errors = this.validateErrors;

    for (let index = 0; index < errors.length; index++) {
      const { property, constraints = {} } = errors[index];

      json[property] = Object.values(constraints);
    }

    return json;
  }
}