import { Injectable } from '@angular/core';
import { JwtHelperService } from '@auth0/angular-jwt';
import { User, LoginSuccessResult, ImportedArdaConUser } from 'tournee.businesslogic';

@Injectable()
export class AuthService {
  public User: User;
  public Import: ImportedArdaConUser;
  lastChecked: Date;
  isExpired: boolean;

  constructor(public jwtHelper: JwtHelperService) {
    this.User = new User(JSON.parse(localStorage.getItem('tournee.user')));
  }

  token() {
    return this.jwtHelper.tokenGetter();
  }


  loggedIn() {
    if (!this.lastChecked || this.lastChecked.getTime() > Date.now() + 5000) {
      this.lastChecked = new Date(Date.now() + 5000);
      this.isExpired = this.jwtHelper.isTokenExpired();
    }
    return !this.isExpired;
  }
  IsMigrating() {
    return this.Import != null;
  }

  systemAdmin() {
    if (!this.loggedIn()) {
      return false;
    }
    if (!this.User) {
      return false;
    } else {
      return this.User.systemAdmin();
    }
  }

  add_saved_tournament(tournament_id) {
    this.User.saved_tournaments.push(tournament_id);
    this.restashUser();
  }
  user_has_saved_tournament(tournament_id) {
    if (this.loggedIn()) {
      return this.User.saved_tournaments.indexOf(tournament_id) > -1;
    } else {
      return false;
    }
  }
  restashUser() {
    localStorage.setItem('tournee.user', JSON.stringify(this.User));
  }
  importing(to_import: ImportedArdaConUser) {
    this.Import = to_import;
  }
  loginSuccess(result : LoginSuccessResult) {
    return new Promise((resolve) => {
      this.Import = null;
      localStorage.setItem('tournee.token', result.token);
      this.User = new User(result.user);
      localStorage.setItem('tournee.user', JSON.stringify(this.User));
      this.lastChecked = null;
      resolve();
    });
  }
  logoutSuccess() {
    localStorage.removeItem('tournee.user');
    localStorage.removeItem('tournee.token');
    this.User = null;
    this.lastChecked = null;
    this.isExpired = true;
  }
}