#include <windows.h>

#include "Daodan.h"
#include "Daodan_Win32.h"

#include "Oni.h"

extern HWND onihwnd;

short ONICALL DDrPlatform_Initialize(ONtPlatformData *PlatformData)
{
	WNDCLASSEX WndClass;
	RECT Rect;
	const int Width = 640, Height = 480;
	HINSTANCE temp_Instance = PlatformData->Instance;

	PlatformData->Instance = g_Instance;

	WndClass.cbSize = sizeof(WndClass);
	WndClass.style = CS_VREDRAW | CS_HREDRAW | CS_OWNDC;
	WndClass.cbClsExtra = 0;
	WndClass.cbWndExtra = 0;
	WndClass.hInstance = PlatformData->Instance;
	WndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
	WndClass.hIcon = LoadIcon(g_Instance, MAKEINTRESOURCE(103) );
	WndClass.hIconSm = LoadIcon(g_Instance, MAKEINTRESOURCE(103));
	WndClass.hbrBackground = GetStockObject(BLACK_BRUSH);
	WndClass.lpszMenuName = NULL;
	WndClass.lpszClassName = "ONI ";
	WndClass.lpfnWndProc = ONrPlatform_WindowProc;

	RegisterClassEx(&WndClass);
	
	Rect.left = (GetSystemMetrics(SM_CXSCREEN) / 2) - (Width / 2);
	Rect.top = (GetSystemMetrics(SM_CYSCREEN) / 2) - (Height / 2);
	Rect.right = Rect.left + Width;
	Rect.bottom = Rect.top + Height;
	AdjustWindowRect(&Rect, WS_MAXIMIZEBOX | WS_MINIMIZEBOX | WS_POPUP | WS_TILEDWINDOW , FALSE);
	PlatformData->Window = CreateWindowEx(0, "ONI ", "ONI ",  WS_MAXIMIZEBOX | WS_MINIMIZEBOX | WS_POPUP | WS_TILEDWINDOW, Rect.left, Rect.top, Rect.right - Rect.left, Rect.bottom - Rect.top, NULL, NULL, PlatformData->Instance, NULL);
	onihwnd = PlatformData->Window;
	ShowWindow(PlatformData->Window, SW_SHOWNORMAL);
	UpdateWindow(PlatformData->Window);

	ShowCursor(FALSE);
	
	// I dont know why this is needed but Oni doesn't init without it.
	ONgPlatformData.Window = PlatformData->Window;
	ONgPlatformData.Instance = PlatformData->Instance;
	
	return 0;
}