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));
}
public async Task <bool> AddFavourite(string user_id, IElement element)
{
FirebaseDB firebaseDB = new FirebaseDB(BASE_URL);
string path = user_id + GetRootOfElement(element.TypeElement);
FirebaseDB firebaseDBUserFavItems = firebaseDB.NodePath(path);
if (element is Song)
{
((Song)element).image = null;
((Song)element).artist = null;
}
IDictionary <string, IElement> IdElementPair = new Dictionary <string, IElement>();
IdElementPair.Add(element.Id, element);
string favToAdd = JsonConvert.SerializeObject(IdElementPair);
FirebaseResponse patchResponse = firebaseDBUserFavItems
.Patch(favToAdd);
return(patchResponse.Success);
}
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 async Task <bool> RemoveFavourite(string user_id, IElement element)
{
FirebaseDB firebaseDB = new FirebaseDB(BASE_URL);
string path = user_id + GetRootOfElement(element.TypeElement) + element.Id;
FirebaseDB firebaseDBRemoveFavMovies = firebaseDB.NodePath(path);
FirebaseResponse deleteResponse = firebaseDBRemoveFavMovies
.Delete();
return(deleteResponse.Success);
}
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 <string> AddFriend(string user_id, string friend_email)
{
if (friend_email.Equals(AccountManager.GetAccountMail().Replace('.', ',')))
{
return("You cannot add yourshelve as a friend");
}
User u = GetUserByEmail(friend_email);
if (u == null)
{
return("The user doesn't exist");
}
if (CheckIfIsYourFriend(user_id, friend_email))
{
return("The user is already your friend");
}
Friend friend = new Friend()
{
FriendId = u.Id
};
IDictionary <string, Friend> IdElementPair = new Dictionary <string, Friend>();
IdElementPair.Add(friend_email, friend);
FirebaseDB firebaseDB = new FirebaseDB(BASE_URL);
string path = user_id + "/friends";
FirebaseDB firebaseDBUserFavItems = firebaseDB.NodePath(path);
string friendToAdd = JsonConvert.SerializeObject(IdElementPair);
FirebaseResponse patchResponse = firebaseDBUserFavItems
.Patch(friendToAdd);
return(patchResponse.Success ? "Friend added correctly" : "A problem appears adding a friend");
}
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);
}