import {Component, OnInit} from '@angular/core';
import {FormBuilder, FormGroup, Validators} from '@angular/forms';
import {STEPPER_GLOBAL_OPTIONS} from '@angular/cdk/stepper';

/**
 * @title Stepper that displays errors in the steps
 */
@Component({
  selector: 'stepper-errors-example',
  templateUrl: 'stepper-errors-example.html',
  styleUrls: ['stepper-errors-example.css'],
  providers: [{
    provide: STEPPER_GLOBAL_OPTIONS, useValue: {showError: true}
  }]
})
export class StepperErrorsExample implements OnInit {
  firstFormGroup: FormGroup;
  secondFormGroup: FormGroup;

  constructor(private _formBuilder: FormBuilder) {}

  ngOnInit() {
    this.firstFormGroup = this._formBuilder.group({
      firstCtrl: ['', Validators.required]
    });
    this.secondFormGroup = this._formBuilder.group({
      secondCtrl: ['', Validators.required]
    });
  }
}