public async Task <StopGameResponse> StopGameAsync(StopGameRequest request)
{
LogInfo($"Stop game: ConnectionId = {CurrentRequest.RequestContext.ConnectionId}");
// fetch game record from table
var gameRecord = await _table.GetAsync <GameRecord>(request.GameId);
if (gameRecord == null)
{
LogInfo("No game found to stop");
// game is already stopped, nothing further to do
return(new StopGameResponse());
}
// check if game state machine needs to be stopped
if (gameRecord.GameLoopArn != null)
{
LogInfo($"Stopping Step Function: Name = {gameRecord.GameLoopArn}");
try {
await _stepFunctionsClient.StopExecutionAsync(new StopExecutionRequest {
ExecutionArn = gameRecord.GameLoopArn,
Cause = "user requested game to be stopped"
});
} catch (Exception e) {
LogErrorAsInfo(e, "unable to stop state-machine");
}
}
// delete game record
LogInfo($"Deleting game record: ID = {request.GameId}");
await _table.DeleteAsync <GameRecord>(request.GameId);
// update game state to indicated it was stopped
gameRecord.Game.Status = GameStatus.Finished;
++gameRecord.Game.TotalTurns;
gameRecord.Game.Messages.Add(new Message {
GameTurn = gameRecord.Game.TotalTurns,
Text = "Game stopped."
});
// return final game state
return(new StopGameResponse {
Game = gameRecord.Game
});
}
private Amazon.StepFunctions.Model.StopExecutionResponse CallAWSServiceOperation(IAmazonStepFunctions client, Amazon.StepFunctions.Model.StopExecutionRequest request)
{
Utils.Common.WriteVerboseEndpointMessage(this, client.Config, "AWS Step Functions", "StopExecution");
try
{
#if DESKTOP
return(client.StopExecution(request));
#elif CORECLR
return(client.StopExecutionAsync(request).GetAwaiter().GetResult());
#else
#error "Unknown build edition"
#endif
}
catch (AmazonServiceException exc)
{
var webException = exc.InnerException as System.Net.WebException;
if (webException != null)
{
throw new Exception(Utils.Common.FormatNameResolutionFailureMessage(client.Config, webException.Message), webException);
}
throw;
}
}
