import { Injectable } from '@angular/core';
import { HttpRequest, HttpHandler, HttpEvent, HttpInterceptor } from '@angular/common/http';
import { Observable, throwError } from 'rxjs';
import { catchError } from 'rxjs/operators';
import { AuthenticationService } from '@app/_services';
import {Router} from "@angular/router";

@Injectable()
export class ErrorInterceptor implements HttpInterceptor {
  constructor(private authenticationService: AuthenticationService, private router: Router) {
  }

  intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    return next.handle(request).pipe(catchError(err => {
      if (err.status === 401) {
        this.authenticationService.logout();
        this.authenticationService.popup('login');
      }

      const error = err.error || err.statusText;
      return throwError(error);
    }));
  }
}