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#include "mvCallbackRegistry.h"

#include "mvProfiler.h"

#include "mvContext.h"

#include <chrono>

#include "mvItemRegistry.h"

#include "mvAppItemCommons.h"

#include "mvPyUtils.h"

void mvRunTasks()

{

while (!GContext->callbackRegistry->tasks.empty())

{

mvFunctionWrapper t;

GContext->callbackRegistry->tasks.wait_and_pop(t);

t();

}

void mvFrameCallback(i32 frame)

{

if (frame > GContext->callbackRegistry->highestFrame)

return;

if (GContext->callbackRegistry->frameCallbacks.count(frame) == 0)

return;

mvAddCallback(GContext->callbackRegistry->frameCallbacks[frame], frame, nullptr,

GContext->callbackRegistry->frameCallbacksUserData[frame]);

}

bool mvRunCallbacks()

{

GContext->callbackRegistry->running = true;

mvGlobalIntepreterLock gil;

while (GContext->callbackRegistry->running)

{

mvFunctionWrapper t2;

Py_BEGIN_ALLOW_THREADS;

GContext->callbackRegistry->calls.wait_and_pop(t2);

Py_END_ALLOW_THREADS;

t2();

GContext->callbackRegistry->callCount--;

}

return true;

}

void mvAddCallback(PyObject* callable, mvUUID sender, PyObject* app_data, PyObject* user_data, bool decrementAppData)

{

if (GContext->callbackRegistry->callCount > GContext->callbackRegistry->maxNumberOfCalls)

{

if (app_data != nullptr)

Py_XDECREF(app_data);

if (user_data != nullptr)

Py_XDECREF(user_data);

assert(false);

return;

}

if (GContext->IO.manualCallbacks)

{

if (callable != nullptr)

Py_XINCREF(callable);

if (app_data != nullptr)

Py_XINCREF(app_data);

if (user_data != nullptr)

Py_XINCREF(user_data);

GContext->callbackRegistry->jobs.push_back({ sender, callable, app_data, user_data });

return;

}

mvSubmitCallback([=]() {

mvRunCallback(callable, sender, app_data, user_data, decrementAppData);

});

}

void mvAddCallback(PyObject* callable, const std::string& sender, PyObject* app_data, PyObject* user_data)

{

if (GContext->callbackRegistry->callCount > GContext->callbackRegistry->maxNumberOfCalls)

{

if (app_data != nullptr)

Py_XDECREF(app_data);

if (user_data != nullptr)

Py_XDECREF(user_data);

assert(false);

return;

}

if (GContext->IO.manualCallbacks)

{

if (callable != nullptr)

Py_XINCREF(callable);

if (app_data != nullptr)

Py_XINCREF(app_data);

if (user_data != nullptr)

Py_XINCREF(user_data);

GContext->callbackRegistry->jobs.push_back({ 0, callable, app_data, user_data, sender });

return;

}

mvSubmitCallback([=]() {

mvRunCallback(callable, sender, app_data, user_data);

});

}

void mvRunCallback(PyObject* callable, const std::string& sender, PyObject* app_data, PyObject* user_data)

{

if (callable == nullptr)

{

//if (data != nullptr)

// Py_XDECREF(data);

return;

}

if (!PyCallable_Check(callable))

{

if (app_data != nullptr)

Py_XDECREF(app_data);

if (user_data != nullptr)

Py_XDECREF(user_data);

mvThrowPythonError(mvErrorCode::mvNone, "Callable not callable.");

PyErr_Print();

return;

}

if (app_data == nullptr)

{

app_data = Py_None;

Py_XINCREF(app_data);

}

Py_XINCREF(app_data);

if (user_data == nullptr)

{

user_data = Py_None;

Py_XINCREF(user_data);

}

Py_XINCREF(user_data);

//PyErr_Clear();

if (PyErr_Occurred())

PyErr_Print();

if (PyErr_Occurred())

PyErr_Print();

PyObject* fc = PyObject_GetAttrString(callable, "__code__");

if (fc) {

PyObject* ac = PyObject_GetAttrString(fc, "co_argcount");

if (ac) {

i32 count = PyLong_AsLong(ac);

if (PyMethod_Check(callable))

count--;

if (count > 3)

{

mvPyObject pArgs(PyTuple_New(count));

PyTuple_SetItem(pArgs, 0, ToPyString(sender));

PyTuple_SetItem(pArgs, 1, app_data); // steals data, so don't deref

PyTuple_SetItem(pArgs, 2, user_data); // steals data, so don't deref

for (int i = 3; i < count; i++)

PyTuple_SetItem(pArgs, i, GetPyNone());

mvPyObject result(PyObject_CallObject(callable, pArgs));

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

else if (count == 3)

{

mvPyObject pArgs(PyTuple_New(3));

PyTuple_SetItem(pArgs, 0, ToPyString(sender));

PyTuple_SetItem(pArgs, 1, app_data); // steals data, so don't deref

PyTuple_SetItem(pArgs, 2, user_data); // steals data, so don't deref

mvPyObject result(PyObject_CallObject(callable, pArgs));

pArgs.delRef();

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

else if (count == 2)

{

mvPyObject pArgs(PyTuple_New(2));

PyTuple_SetItem(pArgs, 0, ToPyString(sender));

PyTuple_SetItem(pArgs, 1, app_data); // steals data, so don't deref

mvPyObject result(PyObject_CallObject(callable, pArgs));

pArgs.delRef();

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

else if (count == 1)

{

mvPyObject pArgs(PyTuple_New(1));

PyTuple_SetItem(pArgs, 0, ToPyString(sender));

mvPyObject result(PyObject_CallObject(callable, pArgs));

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

else

{

mvPyObject result(PyObject_CallObject(callable, nullptr));

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

Py_DECREF(ac);

}

Py_DECREF(fc);

}

void mvRunCallback(PyObject* callable, mvUUID sender, PyObject* app_data, PyObject* user_data, bool decrementAppData)

{

if (callable == nullptr)

{

//if (data != nullptr)

// Py_XDECREF(data);

return;

}

if (!PyCallable_Check(callable))

{

if (app_data != nullptr)

Py_XDECREF(app_data);

if (user_data != nullptr)

Py_XDECREF(user_data);

mvThrowPythonError(mvErrorCode::mvNone, "Callable not callable.");

PyErr_Print();

return;

}

if (app_data == nullptr)

{

app_data = Py_None;

Py_XINCREF(app_data);

}

if(decrementAppData)

Py_XINCREF(app_data);

if (user_data == nullptr)

{

user_data = Py_None;

Py_XINCREF(user_data);

}

Py_XINCREF(user_data);

//PyErr_Clear();

if (PyErr_Occurred())

PyErr_Print();

if (PyErr_Occurred())

PyErr_Print();

PyObject* fc = PyObject_GetAttrString(callable, "__code__");

if (fc) {

PyObject* ac = PyObject_GetAttrString(fc, "co_argcount");

if (ac) {

i32 count = PyLong_AsLong(ac);

if (PyMethod_Check(callable))

count--;

if (count > 3)

{

mvPyObject pArgs(PyTuple_New(count));

PyTuple_SetItem(pArgs, 0, ToPyUUID(sender));

PyTuple_SetItem(pArgs, 1, app_data); // steals data, so don't deref

PyTuple_SetItem(pArgs, 2, user_data); // steals data, so don't deref

for (int i = 3; i < count; i++)

PyTuple_SetItem(pArgs, i, GetPyNone());

mvPyObject result(PyObject_CallObject(callable, pArgs));

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

else if (count == 3)

{

mvPyObject pArgs(PyTuple_New(3));

PyTuple_SetItem(pArgs, 0, ToPyUUID(sender));

PyTuple_SetItem(pArgs, 1, app_data); // steals data, so don't deref

PyTuple_SetItem(pArgs, 2, user_data); // steals data, so don't deref

mvPyObject result(PyObject_CallObject(callable, pArgs));

pArgs.delRef();

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

else if (count == 2)

{

mvPyObject pArgs(PyTuple_New(2));

PyTuple_SetItem(pArgs, 0, ToPyUUID(sender));

PyTuple_SetItem(pArgs, 1, app_data); // steals data, so don't deref

mvPyObject result(PyObject_CallObject(callable, pArgs));

pArgs.delRef();

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

else if(count == 1)

{

mvPyObject pArgs(PyTuple_New(1));

PyTuple_SetItem(pArgs, 0, ToPyUUID(sender));

mvPyObject result(PyObject_CallObject(callable, pArgs));

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

else

{

mvPyObject result(PyObject_CallObject(callable, nullptr));

// check if call succeeded

if (!result.isOk())

PyErr_Print();

}

Py_DECREF(ac);

}

Py_DECREF(fc);

}

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