Fitler Guard

guard.ts

import { Injectable } from '@angular/core';
import { CanActivate, CanActivateChild, ActivatedRouteSnapshot, RouterStateSnapshot, Router } from '@angular/router';
import { Observable } from 'rxjs/Observable';


import { AutService } from '../services/auth.service';
import { nearer } from './/Users/rainer/Documents/Checkmate/Staunch-Odigos/node_modules/@types/q';

@Injectable()
export class ComplexGuard implements CanActivate, CanActivateChild {
  constructor(private _as: AutService, private _router: Router) { }

  canActivate(
    next: ActivatedRouteSnapshot,
    state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean {
        // If the user is logged in, we don't need to filter out our token, so leave them be. 
        if(this._as.isLogged()){
            return true;
        } else {
            // check to see if the auth query is there. 
            if(next.params['auth']){
                const authCheck =  this._as.checktoken(next.params['auth']);
                authCheck.subscribe((cleared=>{
                    if(cleared === true){
                        const extras = {
                            params: next.params,
                            outet: next.outlet,
                            queryParams: next.queryParams,
                            fragment: next.fragment,
                            data: next.data
                        };
                        delete extras.params['auth'];
                        const paths = next.pathFromRoot();
                        let acc='';
                        for(const path of paths){
                            if(path.url.length !== 0){
                              acc += `/${path.url[0].path}`;
                            }
                          }
                        this._router.navigateByUrl(acc, extras);
                    }
                }));
                return authCheck;
            } else {
                //No auth token? Get out of here
                this._router.navigate(['/', '503']);
                return false;
            }
        }
    }
    
  }

  
}