public async Task <IEnumerable <User> > GetUserFriends(string user_id)
{
FirebaseDB firebaseDB = new FirebaseDB(BASE_URL);
string pathFavoriteBooks = user_id + "/friends";
FirebaseDB firebaseDBUserFavorites = firebaseDB.NodePath(pathFavoriteBooks);
FirebaseResponse getResponse = firebaseDBUserFavorites.Get();
if (getResponse.JSONContent.Equals("null"))
{
return(new List <User>());
}
IEnumerable <string> friendMails = DeserializeFriends(getResponse.JSONContent).Keys;
List <User> friends = new List <User>();
foreach (string email in friendMails)
{
User u = GetUserByEmail(email);
if (u != null)
{
friends.Add(u);
}
}
return(friends);
}
public async Task <bool> CheckIfIsFavourite(string user_id, IElement element)
{
FirebaseDB firebaseDB = new FirebaseDB(BASE_URL);
string path = user_id + GetRootOfElement(element.TypeElement);
FirebaseDB firebaseDBUserFavorites = firebaseDB.NodePath(path);
FirebaseResponse getResponse = firebaseDBUserFavorites.Get();
if (getResponse.JSONContent.Equals("null"))
{
return(false);
}
IEnumerable <string> elementKeys = null;
switch (element.TypeElement)
{
case (int)ElementType.Book: elementKeys = DeserializeBooks(getResponse.JSONContent).Keys;
break;
case (int)ElementType.Movie: elementKeys = DeserializeMovies(getResponse.JSONContent).Keys;
break;
case (int)ElementType.Song: elementKeys = DeserializeSongs(getResponse.JSONContent).Keys;
break;
}
return(elementKeys == null ? false : elementKeys.Contains(element.Id));
}
private User GetUserByEmail(string email)
{
FirebaseDB firebaseDB = new FirebaseDB(BASE_URL);
FirebaseDB firebaseDBUsers = firebaseDB.NodePath("users/" + email);
FirebaseResponse getResponse = firebaseDBUsers.Get();
if (getResponse.Success)
{
string response = getResponse.JSONContent;
if (response.Equals("null"))
{
return(null);
}
else
{
User u = JsonConvert.DeserializeObject <User>(response);
return(u);
}
}
return(null);
}
public IEnumerable <Song> GetFavouriteSongs(string user_id)
{
FirebaseDB firebaseDB = new FirebaseDB(BASE_URL);
string pathFavoriteSongs = user_id + GetRootOfElement((int)ElementType.Song);
FirebaseDB firebaseDBUserFavorites = firebaseDB.NodePath(pathFavoriteSongs);
FirebaseResponse getResponse = firebaseDBUserFavorites.Get();
if (getResponse.JSONContent.Equals("null"))
{
return(new List <Song>());
}
return(DeserializeSongs(getResponse.JSONContent).Values);
}
public async Task <bool> CheckUserExists(User user)
{
FirebaseDB firebaseDB = new FirebaseDB(BASE_URL);
FirebaseDB firebaseDBUsers = firebaseDB.NodePath("users/" + user.Email);
FirebaseResponse getResponse = firebaseDBUsers.Get();
if (getResponse.Success)
{
string response = getResponse.JSONContent;
if (response.Equals("null"))
{
return(false);
}
else
{
return(true);
}
}
return(false);
}
private bool CheckIfIsYourFriend(string user_id, string friend_email)
{
FirebaseDB firebaseDB = new FirebaseDB(BASE_URL);
FirebaseDB firebaseDBUserFriend = firebaseDB.NodePath(user_id + "/friends/" + friend_email.Replace('.', ','));
FirebaseResponse getResponse = firebaseDBUserFriend.Get();
if (getResponse.Success)
{
string response = getResponse.JSONContent;
if (response.Equals("null"))
{
return(false);
}
else
{
return(true);
}
}
return(false);
}