/*
 * Copyright French Prime minister Office/SGMAP/DINSIC/Vitam Program (2019-2020)
 * and the signatories of the "VITAM - Accord du Contributeur" agreement.
 *
 * contact@programmevitam.fr
 *
 * This software is a computer program whose purpose is to implement
 * implement a digital archiving front-office system for the secure and
 * efficient high volumetry VITAM solution.
 *
 * This software is governed by the CeCILL-C license under French law and
 * abiding by the rules of distribution of free software.  You can  use,
 * modify and/ or redistribute the software under the terms of the CeCILL-C
 * license as circulated by CEA, CNRS and INRIA at the following URL
 * "http://www.cecill.info".
 *
 * As a counterpart to the access to the source code and  rights to copy,
 * modify and redistribute granted by the license, users are provided only
 * with a limited warranty  and the software's author,  the holder of the
 * economic rights,  and the successive licensors  have only  limited
 * liability.
 *
 * In this respect, the user's attention is drawn to the risks associated
 * with loading,  using,  modifying and/or developing or reproducing the
 * software by the user in light of its specific status of free software,
 * that may mean  that it is complicated to manipulate,  and  that  also
 * therefore means  that it is reserved for developers  and  experienced
 * professionals having in-depth computer knowledge. Users are therefore
 * encouraged to load and test the software's suitability as regards their
 * requirements in conditions enabling the security of their systems and/or
 * data to be ensured and,  more generally, to use and operate it in the
 * same conditions as regards security.
 *
 * The fact that you are presently reading this means that you have had
 * knowledge of the CeCILL-C license and that you accept its terms.
 */
import { Injectable } from '@angular/core';
import { ActivatedRouteSnapshot, Resolve, Router } from '@angular/router';
import { Observable } from 'rxjs';
import { map, take } from 'rxjs/operators';

import { Customer } from 'ui-frontend-common';
import { CustomerService } from '../core/customer.service';

@Injectable()
export class CustomerResolver implements Resolve<Customer> {

  constructor(private customerService: CustomerService, private router: Router) { }

  resolve(route: ActivatedRouteSnapshot): Observable<Customer> {
    const id = route.paramMap.get('id');

    return this.customerService.get(id)
      .pipe(
        take(1),
        map((customer: Customer) => {
          if (customer) {
            return customer;
          } else {
            this.router.navigate(['/']);

            return null;
          }
        })
      );
  }

}