D-Net

import { Directive, Input, OnChanges, SimpleChanges } from '@angular/core';

import { AbstractControl, NG_VALIDATORS, Validator, ValidatorFn, Validators } from '@angular/forms';

import { Dates } from "../string-utils.class";

export function inValidYearValidator(minYear, maxYear): ValidatorFn {

  return (control: AbstractControl): {[key: string]: any} | null => {

    return ((control.value && !Dates.isValidYear(control.value, minYear, maxYear)) ? {'inValidYear': {value: control.value}} : null);

  };

}

@Directive({

  selector: '[inValidYear]',

  providers: [{provide: NG_VALIDATORS, useExisting: InValidYearValidatorDirective, multi: true}]

})

export class InValidYearValidatorDirective implements Validator {

  @Input() maxYear = Dates.yearMax;

  @Input() minYear = Dates.yearMin;

  validate(control: AbstractControl): {[key: string]: any} | null {

    return inValidYearValidator(this.minYear, this.maxYear)(control);

  }

}