import { Injectable } from '@angular/core'
import { ActivatedRouteSnapshot, CanActivate, CanActivateChild, Router, RouterStateSnapshot } from '@angular/router'
import { AuthService } from '../auth/auth.service'

@Injectable()
export class UserRightGuard implements CanActivate, CanActivateChild {

  constructor (
    private router: Router,
    private auth: AuthService
  ) {}

  canActivate (route: ActivatedRouteSnapshot, state: RouterStateSnapshot) {
    const user = this.auth.getUser()
    if (user) {
      const neededUserRight = route.data.userRight

      if (user.hasRight(neededUserRight)) return true
    }

    this.router.navigate([ '/login' ])
    return false
  }

  canActivateChild (route: ActivatedRouteSnapshot, state: RouterStateSnapshot) {
    return this.canActivate(route, state)
  }
}