import {ActivatedRouteSnapshot, CanActivate, RouterStateSnapshot} from "@angular/router";

import {AuthService} from "./auth.service";
import {Injectable} from "@angular/core";

@Injectable()
export class AuthorizationGuard implements  CanActivate {

    private allowedRoles:string[];

    constructor(private authService:AuthService) {
    }

    canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot) {

        this.allowedRoles = route.data["roles"];

        const allowed:boolean = this.authService.currentUser.roles.filter(
            role=>this.allowedRoles.includes(role)).length > 0;

        return allowed;
    }
}