/**
 * @license
 * FOURBURNER CONFIDENTIAL
 * Unpublished Copyright (C) 2021 FourBurner Technologies, Inc. All Rights Reserved.
 *
 * NOTICE: All information contained herein is, and remains the property of FOURBURNER TECHNOLOGIES,
 * INC. The intellectual and technical concepts contained herein are proprietary to FOURBURNER
 * TECHNOLOGIES, INC. and may be covered by U.S. and Foreign Patents, patents in process, and are
 * protected by trade secret or copyright law. Dissemination of this information or reproduction of
 * this material is strictly forbidden unless prior written permission is obtained from FOURBURNER
 * TECHNOLOGIES, INC. Access to the source code contained herein is hereby forbidden to anyone
 * except current FOURBURNER TECHNOLOGIES, INC. employees, managers or contractors who have executed
 * Confidentiality and Non-disclosure agreements explicitly covering such access.
 *
 * The copyright notice above does not evidence any actual or intended publication or disclosure of
 * this source code, which includes information that is confidential and/or proprietary, and is a
 * trade secret, of FOURBURNER TECHNOLOGIES, INC. ANY REPRODUCTION, MODIFICATION, DISTRIBUTION,
 * PUBLIC PERFORMANCE, OR PUBLIC DISPLAY OF OR THROUGH USE OF THIS SOURCE CODE WITHOUT THE EXPRESS
 * WRITTEN CONSENT OF FOURBURNER TECHNOLOGIES, INC. IS STRICTLY PROHIBITED, AND IN VIOLATION OF
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 * RELATED INFORMATION DOES NOT CONVEY OR IMPLY ANY RIGHTS TO REPRODUCE, DISCLOSE OR DISTRIBUTE ITS
 * CONTENTS, OR TO MANUFACTURE, USE, OR SELL ANYTHING THAT IT MAY DESCRIBE, IN WHOLE OR IN PART.
 */

import {Injectable} from '@angular/core';
import {FormGroupDirective, NgForm, FormControl} from '@angular/forms';

/** Error state matcher that matches when a control is invalid and dirty. */
@Injectable() export class ShowOnDirtyErrorStateMatcher implements ErrorStateMatcher
{
  isErrorState(control: FormControl|null, form: FormGroupDirective|NgForm|null): boolean
  {
    return !!(control && control.invalid && (control.dirty || (form && form.submitted)));
  }
}

/** Provider that defines how form controls behave with regards to displaying error messages. */
@Injectable({providedIn : 'root'}) export class ErrorStateMatcher
{
  isErrorState(control: FormControl|null, form: FormGroupDirective|NgForm|null): boolean
  {
    return !!(control && control.invalid && (control.touched || (form && form.submitted)));
  }
}