/**
* Takes a picture
**/
private void AskTakePicture()
{
mHTTP.ChangeCommand(HttpRequest.Commands.POST_C_EXECUTE);
mHTTP.SetJSONData(ConstructTakePictureJSONString());
mCurrentState = OSCStates.TAKE_PHOTO;
mHTTP.Execute();
}
/**
* Starts live preview mode
**/
private void AskStartLivePreview()
{
mCurrentState = OSCStates.LIVE_PREVIEW;
mHTTP.ChangeCommand(HttpRequest.Commands.POST_C_EXECUTE);
mHTTP.SetJSONData(ConstructStartLivePreviewJSONString());
mHTTP.NextRequestIsStream();
mHTTP.Execute();
}
/**
* After delete call the callback to inform that we are done
* Go to IDLE state
**/
void ManageDelete(JsonData jdata)
{
if (mCallBack != null)
{
mCallBack();
mCallBack = null;
}
mCurrentState = OSCStates.IDLE;
}
private void Init()
{
mInternalData.fileURL = "";
mInternalData.currentOperationId = "";
mInternalData.sessionId = "";
mInternalData.isBusy = false;
mInternalData.remainingConnectionTry = 3;
mCurrentState = OSCStates.INIT;
EnqueueAction(OSCActions.CAMERA_STATE);
}
/**
* Passes the camera in API version 2 if it is in version 1
* then sets options
**/
void ManageInit(JsonData jdata)
{
Debug.Log(jdata.ToString());
if (jdata["state"]["_apiVersion"].ToString() == "1")
{
EnqueueAction(OSCActions.START_SESSION);
EnqueueAction(OSCActions.UPGRADE_API);
EnqueueAction(OSCActions.SET_OPTIONS);
mCurrentState = OSCStates.DISCONNECTED;
}
else
{
mCurrentState = OSCStates.IDLE;
}
}
/**
* Handle error from the HTTP part
**/
private void HandleError(string err)
{
if (mInternalData.remainingConnectionTry > 0)
{
int tmp = mInternalData.remainingConnectionTry;
Debug.Log("HTTP error: " + err); //Log error message
RebootController();
mInternalData.remainingConnectionTry = --tmp;
}
else //3 try, 3 fails, application goes to error state
{
ClearQueue();
mCurrentState = OSCStates.ERROR;
}
}
/**
* When taking a photo we ask for operation progress until state is done
* Then go to DOWNLOAD_PHOTO
**/
void ManageTakePhoto(JsonData jdata)
{
string state = jdata["state"].ToString();
if (state == "inProgress")
{
mInternalData.currentOperationId = jdata["id"].ToString();
EnqueueAction(OSCActions.PROGRESS_STATUS);
}
else if (state == "done")
{
mInternalData.fileURL = jdata["results"]["fileUrl"].ToString();
EnqueueAction(OSCActions.DOWNLOAD);
mCurrentState = OSCStates.DOWNLOAD_PHOTO;
}
}
/**
* Issues enqueued commands and gets response
**/
private void Update()
{
//Dequeue and invoke a new method if we are done with the previous request
if (!mInternalData.isBusy && mExecutionQueue.Count > 0)
{
mExecutionQueue.Dequeue().Invoke(this, null);
mInternalData.isBusy = true;
}
else if (mInternalData.isBusy && mHTTP.IsTerminated()) //else if the request is terminated and successful handle it in the FSM
{
string s = mHTTP.GetHTTPResponse();
Debug.Log("Request answer: " + s);
if (mHTTP.IsSuccessful())
{
mInternalData.remainingConnectionTry = 3;
ResponseHandler(s);
}
else
{
HandleError(s);
}
mInternalData.isBusy = false;
}
else if (mCurrentState == OSCStates.LIVE_PREVIEW) //else if we are streaming check for a new image or try restarting live preview
{
if (mHTTP.mStreamRequest.IsStreamOnError())
{
if (mInternalData.remainingConnectionTry > 0)
{
int tmp = mInternalData.remainingConnectionTry;
StopLivePreview();
RebootController();
EnqueueAction(OSCActions.LIVE_PREVIEW);
mInternalData.remainingConnectionTry = --tmp;
}
else
{
ClearQueue();
mCurrentState = OSCStates.ERROR;
}
}
else
{
ResponseHandler(null);
}
}
}
/**
* Stop a live preview acquisition going back to IDLE state and closing streaming connection
**/
public void StopLivePreview()
{
mInternalData.isBusy = false;
mCurrentState = OSCStates.IDLE;
mHTTP.CloseStreaming();
}
/**
* Save photo as byte array and go to DELETE_PHOTO
**/
void ManageDownload(JsonData jdata)
{
mBuffer = mHTTP.GetRawResponse();
EnqueueAction(OSCActions.DELETE);
mCurrentState = OSCStates.DELETE_PHOTO;
}
/**
* When disconnected we can only received the result of a startSession command
* Go to IDLE state
**/
void ManageDisconnected(JsonData jdata)
{
mInternalData.sessionId = jdata["results"]["sessionId"].ToString();
mCurrentState = OSCStates.IDLE;
}
