import type { RemoveError, ValidationConfig, ValidationError, ValidationParams } from './types';
import { makeAutoObservable } from 'mobx';
import notification from 'ui/elements/notification';

export default class Validation {
  private params: ValidationConfig;
  private errors: Set<ValidationError>;

  constructor(config: ValidationConfig) {
    this.params = config;
    this.errors = new Set();
    makeAutoObservable(this);
  }

  public get hasErrors() {
    return this.errors.size > 0;
  }

  public getErrors() {
    return [...this.errors];
  }

  public removeError = ({ key }: Pick<ValidationError, 'key'>) => {
    const error = [...this.errors].find((x) => x.key === key);
    if (error) this.errors.delete(error);
    if (this.errors.size === 0) notification.close(this.params.err_key);
  };

  public setError = ({ key, message, silent }: ValidationParams) => {
    const error = [...this.errors].find((x) => x.key === key);
    if (error) this.removeError({ key });

    this.errors.add({ key, message });

    if (!silent) {
      notification.error({
        description: message,
        key: this.params.err_key,
        message: this.params.err_title,
      });
    }

    return (() => this.removeError({ key })) as RemoveError;
  };

  public clearErrors = () => {
    this.errors.clear();
    notification.close(this.params.err_key);
  };
}