public async Task <IEnumerable <RoundDto> > Handle(Command request, CancellationToken cancellationToken)
{
//Note to consider when kong tile:
//if player has pong in their graveyard, it can be kong
//-player turn changed
//-flag when user can kong
//-when kong tile user need to grab a new tile.
//-kong doesnt rely on board active tile when its "User's turn", it could be just from player list of active tiles
//-user can kong anytime when it's their turn n it could be more than 1 set to kong
//assign tile ownership to current user
//weird situation is when it's user's turn, user can kong their active tiles and can kong board active tiles
var updatedTiles = new List <RoundTile>();
var round = await _context.Rounds.FindAsync(request.RoundId);
if (round == null)
{
throw new RestException(HttpStatusCode.NotFound, new { Round = "Could not find round" });
}
var currentPlayer = round.RoundPlayers.FirstOrDefault(u => u.GamePlayer.Player.UserName == request.UserName);
if (currentPlayer == null)
{
throw new RestException(HttpStatusCode.BadRequest, new { Round = "there are no user with this username in the round" });
}
List <RoundTile> userActiveTilesToKong = new List <RoundTile>();
var currentUserTiles = round.RoundTiles.Where(t => t.Owner == request.UserName);
//if it's user's turn, check if user has all 4 same tiles first in the user active tiles
//because the request has tile type and tile value, there can only one possible kong
//if user has pong tile, user can kong matching tile
var tilesToKong = currentUserTiles
.Where(t => t.Tile.TileType == request.TileType &&
t.Tile.TileValue == request.TileValue);
if (tilesToKong.Count() == 4)
{
if (currentPlayer.IsMyTurn)
{
//if its not konged already, then user can kong it
var kongedTile = tilesToKong.Where(t => t.TileSetGroup == TileSetGroup.Kong);
if (kongedTile.Count() == 0)
{
updatedTiles.AddRange(tilesToKong);
}
}
}
//this means that user need to kong from board
if (tilesToKong.Count() == 3)
{
//if user only have three and its already ponged, then player can't kong
var tilesAlreadyPonged = tilesToKong.Where(t => t.TileSetGroup == TileSetGroup.Pong);
if (tilesAlreadyPonged.Count() == 3)
{
throw new RestException(HttpStatusCode.BadRequest, new { Round = "Can't do kong when all tiles ponged" });
}
var boardActiveTiles = round.RoundTiles.FirstOrDefault(t => t.Status == TileStatus.BoardActive);
if (boardActiveTiles == null)
{
throw new RestException(HttpStatusCode.BadRequest, new { Round = "there are no board active tile to kong" });
}
var boardActiveMatchedWithRequest = (boardActiveTiles.Tile.TileType == request.TileType && boardActiveTiles.Tile.TileValue == request.TileValue);
if (boardActiveMatchedWithRequest)
{
//only have 3 active tiles then board must exist to kong
var allTilesAreActive = tilesToKong.Where(t => t.Status != TileStatus.UserGraveyard);
if (boardActiveMatchedWithRequest && allTilesAreActive.Count() == 3)
{
updatedTiles.AddRange(tilesToKong);
updatedTiles.Add(boardActiveTiles);
}
}
}
if (updatedTiles.Count() == 4)
{
updatedTiles.GoGraveyard(request.UserName, TileSetGroup.Kong, round.RoundTiles.GetLastGroupIndex(request.UserName));
}
else
{
throw new RestException(HttpStatusCode.BadRequest, new { Kong = "Not possible to kong" });
}
//set existing justpicked tile to useractive;
var existingJustPicked = round.RoundTiles.FirstOrDefault(rt => rt.Owner == request.UserName && rt.Status == TileStatus.UserJustPicked);
if (existingJustPicked != null)
{
existingJustPicked.Status = TileStatus.UserActive;
updatedTiles.Add(existingJustPicked);
}
//clear existing action
currentPlayer.RoundPlayerActions.Clear();
//add new tile for user
var newTiles = RoundTileHelper.PickTile(round, request.UserName, true);
if (newTiles.Count() > 0)
{
//assign new tile to user that kong the tile
foreach (var tile in newTiles)
{
updatedTiles.Add(tile);
}
RoundHelper.CheckSelfAction(round, currentPlayer, _pointsCalculator);
}
else
{
//TODO: what if user kong when there is no more tile
}
currentPlayer.IsMyTurn = true;
//because new tile automatically added, player must throw set to true
currentPlayer.MustThrow = true;
if (round.IsEnding)
{
round.IsEnding = false;
}
var otherPlayers = round.RoundPlayers.Where(u => u.IsMyTurn == true && u.GamePlayer.Player.UserName != request.UserName);
foreach (var otherPlayerTurn in otherPlayers)
{
otherPlayerTurn.IsMyTurn = false;
}
try
{
var success = await _context.SaveChangesAsync() > 0;
List <RoundDto> results = new List <RoundDto>();
foreach (var p in round.RoundPlayers)
{
results.Add(_mapper.Map <Round, RoundDto>(round, opt => opt.Items["MainRoundPlayer"] = p));
}
if (success)
{
return(results);
}
}
catch (DbUpdateConcurrencyException)
{
throw new RestException(HttpStatusCode.BadRequest, new { Round = "tile was modified" });
}
throw new Exception("Problem kong ing tile");
}
