public IActionResult GetFriendSuggestions(string user)
{
try
{
FriendSuggestion suggestion = _repo.GetFriendSuggestions(user);
if (suggestion.suggestions == null)
{
return(BadRequest(new AppErrorResponse {
status = "failure", reason = "User does not exist"
}));
}
else if (suggestion.suggestions.Count() == 0)
{
return(NotFound(new AppErrorResponse {
status = "failure", reason = "User does not have any friends"
}));
}
else
{
suggestion.suggestions.Remove(user);
suggestion.suggestions = suggestion.suggestions.Distinct().ToList();
return(Ok(suggestion));
}
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message, ex.InnerException);
return(BadRequest(new AppErrorResponse()));
}
}
public FriendSuggestion GetFriendSuggestions(string user)
{
FriendSuggestion suggestion = new FriendSuggestion();
suggestion.suggestions = new List <string>();
AllFriends all = GetAllFriends(user);
if (all.friends == null)
{
suggestion.suggestions = null;
return(suggestion);
}
foreach (var friend1 in all.friends)
{
var l1 = GetAllFriends(friend1);
l1.friends.Remove(user);
if (l1.friends.Count > 0)
{
suggestion.suggestions.AddRange(l1.friends.Except(all.friends));
foreach (var friend2 in l1.friends)
{
var l2 = GetAllFriends(friend2);
l2.friends.Remove(user);
if (l2.friends.Count > 0)
{
suggestion.suggestions.AddRange(l2.friends.Except(all.friends));
}
}
}
}
return(suggestion);
}
