import {Injectable, isDevMode} from '@angular/core';
import {
  HttpRequest,
  HttpHandler,
  HttpEvent,
  HttpInterceptor, HttpErrorResponse
} from '@angular/common/http';
import {Observable, throwError} from 'rxjs';
import {catchError} from 'rxjs/operators';
import {ErrorDialogService} from '@app/_services';

@Injectable()
export class ErrorInterceptor implements HttpInterceptor {

  constructor(private errorDialogService: ErrorDialogService) {}

  intercept(request: HttpRequest<unknown>, next: HttpHandler): Observable<HttpEvent<unknown>> {
    return next.handle(request).pipe(catchError((err: HttpErrorResponse) => {
      if (isDevMode()) {
        this.errorDialogService.openDialog({
          message: err.error.message || err.statusText || 'Unknown Error',
          status: err.status || 0
        });
      }
      if ([401, 403].indexOf(err.status) !== -1) {
        location.reload(true);
      }
      return throwError(err);
    }));
  }
}