public async Task <Result <Player, JoinGameError> > JoinGameAsync(GameId gameId, string playerName)
{
var result = await _gameRepository.GetGameAndVersionAsync(gameId);
return(await result.Map <Task <Result <Player, JoinGameError> > >(
async gameAndVersion =>
{
var(game, version) = gameAndVersion;
if (game.Players.Count >= Models.Game.MaxNumberOfPlayers)
{
return JoinGameError.GameFull;
}
var playerJoined = new PlayerJoined(playerName);
await _eventRepository.AddEventAsync(gameId, playerJoined, version);
var changedResources = playerJoined.ApplyAndGetModifiedResources(game);
var changedResourceNames = ChangedResourcesResolver.GetResourceNames(changedResources);
await _gameEventService.NotifyWorldUpdatedAsync(game.Id, changedResourceNames.ToArray());
return Convert(game.Players.Last());
},
readGameError =>
{
return readGameError switch
{
ReadGameError.NotFound => Task.FromResult(new Result <Player, JoinGameError>(JoinGameError.GameNotFound)),
_ => throw new ArgumentOutOfRangeException(nameof(readGameError), readGameError, null)
};
}));
