import { Injectable } from '@angular/core';
import {
	Route,
	Router,
	RouterStateSnapshot,
	ActivatedRouteSnapshot,
	CanActivate,
	CanLoad,
	ActivatedRoute,
	NavigationStart,
	NavigationEnd,
	GuardsCheckEnd,
} from '@angular/router';
import { filter } from 'rxjs/operators';
import { KeycloakService } from './keycloak.service';

@Injectable({
	providedIn: 'root',
})
export class AuthGaurdService implements CanActivate {
	constructor(public router: Router, private keycloak: KeycloakService, private route: ActivatedRoute) {
		router.events
			.pipe(filter(event => event instanceof GuardsCheckEnd && event.shouldActivate === false))
			.subscribe((event: any) => {
				if (location.pathname !== '/login' && location.pathname !== '/') {
					localStorage.setItem('currentLocation', location.pathname);
					localStorage.setItem('search', location.search);
				}
			});
	}

	canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
        const url: string = state.url;
        if (localStorage.espToken) {
            return true;
        } else {
            return this.isLogin(url);
        }
	}

	isLogin(url: string): boolean {
		if (this.keycloak.keycloakConfig && this.keycloak.keycloakConfig.authenticated) {
			return true;
		} else {
			this.keycloak.login();
			return false;
		}
	}
}