import { Injectable } from '@angular/core';
import { CanActivate, Router, RouterStateSnapshot, ActivatedRouteSnapshot } from '@angular/router';
import {HttpClient, HttpParams} from '@angular/common/http';
import { UserService } from './user.service';
import { Subscription } from 'rxjs';

@Injectable()

export class AuthGuardService implements CanActivate {
	private UserSub: Subscription = new Subscription();
	private addr = '';
	constructor(
		private router: Router,
		private http: HttpClient,
		public userService: UserService
	){}

	canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
		const token = localStorage.getItem('s4z_token');

		if(token != null){
			this.userService.getUser(token);
			this.UserSub = this.userService.getZaddrUpdateListener().
				subscribe((addr) => {
				if (addr != null) {
					console.log(addr);
					this.addr = addr;
				} else {
					console.log("No record for that token");
				}
			});
			this.UserSub.unsubscribe();
			if (this.addr != null) {
				return true;
			} else {
				return false;
			}
		} else {
			console.log("Not logged in");
			this.router.navigate(['/login']);
			return false;
		}
	}
}