angular.module("shLoginModule",[]).service("LoginService", [
  "$http",
  "$q",
  "PHP_BASE_URL",

  function(
    $http,
    $q,
    PHP_BASE_URL){

    //Used by other services to be notified when the login is complete
    //so they can initialize with data.
    var theLoginPromise = $q.defer();

    var service = {
      loginPromise: theLoginPromise.promise,

      loggedInInfo: {loggedIn:false, user:{}, errorLoggingIn:false, loading:false},

      login: function(userInfo) {
        service.loggedInInfo.loading=true;

        //Promise for caller that is resolved on success or rejected on error
        var deferred = $q.defer();
        $http.post(PHP_BASE_URL+"login", userInfo).success(function(result){
          deferred.resolve(result);
          theLoginPromise.resolve(result);

          angular.copy(result, service.loggedInInfo.user);
          service.loggedInInfo.loggedIn = true;
          service.loggedInInfo.errorLoggingIn = false;
          service.loggedInInfo.loading=false;

        }).error(function(result){
          deferred.reject(result);
          service.loggedInInfo.loggedIn = false;
          service.loggedInInfo.errorLoggingIn = true;
          service.loggedInInfo.loading=false;
        });
        return deferred.promise;
      },
      logout: function(forceRefresh) {
        var deferred = $q.defer();
        $http.post(PHP_BASE_URL+"logout").success(function(result){
          deferred.resolve(service.element);
          service.loggedInInfo.loggedIn = false;
        }).error(function(result){
          deferred.reject(result);
        });
        return deferred.promise;
      },
      signup: function(signupData) {
        var deferred = $q.defer();
        $http.post(PHP_BASE_URL+"signup",signupData).success(function(result){
          deferred.resolve(result);
        }).error(function(result){
          deferred.reject(result);
        });
        return deferred.promise;
      },
      checkLogin: function() {
        var deferred = $q.defer();
        $http.post(PHP_BASE_URL+"checkLogin").success(function(result){
          deferred.resolve(result);
          theLoginPromise.resolve(result);

          angular.copy(result, service.loggedInInfo.user);
          service.loggedInInfo.loggedIn=true;
        }).error(function(result){
          deferred.reject(result);
        });
        return deferred.promise;
      }
    };
    service.checkLogin();
    return service;
  }
])