app.factory("FlashService", function($rootScope) {
  return {
    show: function(message) {
      $rootScope.flash = message;
    },
    clear: function() {
      $rootScope.flash = "";
    }
  }
});

app.factory("SessionService", function() {
  return {
    get: function(key) {
      return sessionStorage.getItem(key);
    },
    set: function(key, val) {
      return sessionStorage.setItem(key, val);
    },
    unset: function(key) {
      return sessionStorage.removeItem(key);
    }
  }
});

app.factory("AuthenticationService", function($http, $sanitize, $rootScope, SessionService, theUser, FlashService, CSRF_TOKEN) {

  var cacheSession   = function() {
    SessionService.set('authenticated', true);
    SessionService.set('username', 'terje');
  };

  var uncacheSession = function() {
    SessionService.unset('authenticated');
    SessionService.unset('username');
  };

  var loginError = function(response) {
    FlashService.show(response.flash);
  };

  var sanitizeCredentials = function(credentials) {
    return {
      email: $sanitize(credentials.email),
      password: $sanitize(credentials.password),
      csrf_token: CSRF_TOKEN
    };
  };

  return {
    login: function(credentials) {
      var login = $http.post("auth/login", sanitizeCredentials(credentials)).success(function(data) {
        theUser = data;
        $rootScope.theUser = theUser;
       // console.log(theUser);
      });
      login.success(cacheSession);
      login.success(FlashService.clear);
      login.error(loginError);
      return login;
    },
    logout: function() {
      var logout = $http.get("auth/logout");
      logout.success(uncacheSession);
    theUser = [];
    delete $rootScope.theUser;
      return logout;
    },
    isLoggedIn: function() {
      return SessionService.get('authenticated');
    }
  };
});
app.controller("LogoutController", function($scope, $location, AuthenticationService) {
  console.log("Logged out");
  AuthenticationService.logout().success(function() {
   $location.path('/test');
  });
});
app.controller("LoginController", function($scope, $location, AuthenticationService) {
  $scope.credentials = { email: "", password: "" };

  $scope.login = function() {
    AuthenticationService.login($scope.credentials).success(function() {
      $location.path('/test');
    });
  };
});