#include "gui/wxgui.h"
#include "gui/guiWrapper.h"
#include "gui/CemuApp.h"
#include "gui/MainWindow.h"
#include "gui/debugger/DebuggerWindow2.h"
#include "Cafe/HW/Latte/Core/Latte.h"
#include "config/ActiveSettings.h"
#include "config/CemuConfig.h"
#include "Cafe/HW/Latte/Renderer/Renderer.h"
#include "Cafe/CafeSystem.h"

#include "wxHelper.h"

WindowInfo g_window_info {};

std::shared_mutex g_mutex;
MainWindow* g_mainFrame = nullptr;

#if BOOST_OS_WINDOWS
void _wxLaunch()
{
	SetThreadName("MainThread_UI");
	wxEntry();
}
#endif

void gui_create()
{
	SetThreadName("MainThread");
#if BOOST_OS_WINDOWS
	// on Windows wxWidgets there is a bug where wxDirDialog->ShowModal will deadlock in Windows internals somehow
	// moving the UI thread off the main thread fixes this
	std::thread t = std::thread(_wxLaunch);
	t.join();
#else
	int argc = 0;
	char* argv[1]{};
	wxEntry(argc, argv);
#endif
}

WindowInfo& gui_getWindowInfo()
{
	return g_window_info;
}

void gui_updateWindowTitles(bool isIdle, bool isLoading, double fps)
{
    std::string windowText;
    windowText = fmt::format("" EMULATOR_NAME " {}.{}{}", EMULATOR_VERSION_LEAD, EMULATOR_VERSION_MAJOR, EMULATOR_VERSION_SUFFIX);

	if (isIdle)
	{
		if (g_mainFrame)
			g_mainFrame->AsyncSetTitle(windowText);
		return;
	}
	if (isLoading)
	{
        windowText.append(" - loading...");
		if (g_mainFrame)
			g_mainFrame->AsyncSetTitle(windowText);
		return;
	}

	const char* renderer = "";
	if(g_renderer)
	{
		switch(g_renderer->GetType())
		{
		case RendererAPI::OpenGL:
			renderer =  "[OpenGL]";
			break;
		case RendererAPI::Vulkan: 
			renderer = "[Vulkan]";
			break;
		default: ;
		}			
	}

	// get GPU vendor/mode
	const char* graphicMode = "[Generic]";
	if (LatteGPUState.glVendor == GLVENDOR_AMD)
		graphicMode = "[AMD GPU]";
	else if (LatteGPUState.glVendor == GLVENDOR_INTEL_LEGACY)
		graphicMode = "[Intel GPU - Legacy]";
	else if (LatteGPUState.glVendor == GLVENDOR_INTEL_NOLEGACY)
		graphicMode = "[Intel GPU]";
	else if (LatteGPUState.glVendor == GLVENDOR_INTEL)
		graphicMode = "[Intel GPU]";
	else if (LatteGPUState.glVendor == GLVENDOR_NVIDIA)
		graphicMode = "[NVIDIA GPU]";
	else if (LatteGPUState.glVendor == GLVENDOR_APPLE)
		graphicMode = "[Apple GPU]";

	const uint64 titleId = CafeSystem::GetForegroundTitleId();
    windowText.append(fmt::format(" - FPS: {:.2f} {} {} [TitleId: {:08x}-{:08x}]", (double)fps, renderer, graphicMode, (uint32)(titleId >> 32), (uint32)(titleId & 0xFFFFFFFF)));

    if (ActiveSettings::IsOnlineEnabled())
        windowText.append(" [Online]");

    windowText.append(" ");
	windowText.append(CafeSystem::GetForegroundTitleName());
	// append region
	CafeConsoleRegion region = CafeSystem::GetForegroundTitleRegion();
	uint16 titleVersion = CafeSystem::GetForegroundTitleVersion();
	if (region == CafeConsoleRegion::JPN)
		windowText.append(fmt::format(" [JP v{}]", titleVersion));
	else if (region == CafeConsoleRegion::USA)
		windowText.append(fmt::format(" [US v{}]", titleVersion));
	else if (region == CafeConsoleRegion::EUR)
		windowText.append(fmt::format(" [EU v{}]", titleVersion));
	else
		windowText.append(fmt::format(" [v{}]", titleVersion));

	std::shared_lock lock(g_mutex);
	if (g_mainFrame)
	{
		g_mainFrame->AsyncSetTitle(windowText);
		auto* pad = g_mainFrame->GetPadView();
		if (pad)
			pad->AsyncSetTitle(fmt::format("GamePad View - FPS: {:.02f}", fps));
	}
}

void gui_getWindowSize(int* w, int* h)
{
	*w = g_window_info.width;
	*h = g_window_info.height;
}

void gui_getPadWindowSize(int* w, int* h)
{
	if (g_window_info.pad_open)
	{
		*w = g_window_info.pad_width;
		*h = g_window_info.pad_height;
	}
	else
	{
		*w = 0;
		*h = 0;
	}
}

bool gui_isPadWindowOpen()
{
	return g_window_info.pad_open;
}

#if BOOST_OS_LINUX
#include <wx/nativewin.h>
#include <dlfcn.h>

typedef void GdkDisplay;
#endif

void gui_initHandleContextFromWxWidgetsWindow(WindowHandleInfo& handleInfoOut, class wxWindow* wxw)
{
#if BOOST_OS_WINDOWS
	handleInfoOut.hwnd = wxw->GetHWND();
#elif BOOST_OS_LINUX
    /* dynamically retrieve GTK imports so we dont have to include and link the whole lib */
    void (*dyn_gtk_widget_realize)(GtkWidget *widget);
    dyn_gtk_widget_realize = (void(*)(GtkWidget* widget))dlsym(RTLD_NEXT, "gtk_widget_realize");

    GdkWindow* (*dyn_gtk_widget_get_window)(GtkWidget *widget);
    dyn_gtk_widget_get_window = (GdkWindow*(*)(GtkWidget* widget))dlsym(RTLD_NEXT, "gtk_widget_get_window");

    GdkDisplay* (*dyn_gdk_window_get_display)(GdkWindow *widget);
    dyn_gdk_window_get_display = (GdkDisplay*(*)(GdkWindow* window))dlsym(RTLD_NEXT, "gdk_window_get_display");

    Display* (*dyn_gdk_x11_display_get_xdisplay)(GdkDisplay *display);
    dyn_gdk_x11_display_get_xdisplay = (Display*(*)(GdkDisplay* display))dlsym(RTLD_NEXT, "gdk_x11_display_get_xdisplay");

    Window (*dyn_gdk_x11_window_get_xid)(GdkWindow *window);
    dyn_gdk_x11_window_get_xid = (Window(*)(GdkWindow *window))dlsym(RTLD_NEXT, "gdk_x11_window_get_xid");

    if(!dyn_gtk_widget_realize || !dyn_gtk_widget_get_window ||
    !dyn_gdk_window_get_display || !dyn_gdk_x11_display_get_xdisplay ||
    !dyn_gdk_x11_window_get_xid)
    {
        cemuLog_log(LogType::Force, "Unable to load GDK symbols");
        return;
    }

    /* end of imports */

    // get window
    GtkWidget* gtkWidget = (GtkWidget*)wxw->GetHandle(); // returns GtkWidget
    dyn_gtk_widget_realize(gtkWidget);
    GdkWindow* gdkWindow = dyn_gtk_widget_get_window(gtkWidget);
    handleInfoOut.xlib_window = dyn_gdk_x11_window_get_xid(gdkWindow);

    // get display
    GdkDisplay* gdkDisplay = dyn_gdk_window_get_display(gdkWindow);
    handleInfoOut.xlib_display = dyn_gdk_x11_display_get_xdisplay(gdkDisplay);
    if(!handleInfoOut.xlib_display)
    {
        cemuLog_log(LogType::Force, "Unable to get xlib display");
    }
#else
	handleInfoOut.handle = wxw->GetHandle();
#endif
}

bool gui_isKeyDown(int key)
{
	if (key >= 256)
		return false;

	return g_window_info.keydown[key];
}

void gui_notifyGameLoaded()
{
	std::shared_lock lock(g_mutex);
	if (g_mainFrame)
	{
		g_mainFrame->OnGameLoaded();
		g_mainFrame->UpdateSettingsAfterGameLaunch();
	}
}

void gui_notifyGameExited()
{
	std::shared_lock lock(g_mutex);
	if(g_mainFrame)
		g_mainFrame->RestoreSettingsAfterGameExited();
}

bool gui_isFullScreen()
{
	return g_window_info.is_fullscreen;
}

bool gui_hasScreenshotRequest()
{
	const bool result = g_window_info.has_screenshot_request;
	g_window_info.has_screenshot_request = false;
	return result;
}

extern DebuggerWindow2* g_debugger_window;
void debuggerWindow_updateViewThreadsafe2()
{
	if (g_debugger_window)
	{
		auto* evt = new wxCommandEvent(wxEVT_UPDATE_VIEW);
		wxQueueEvent(g_debugger_window, evt);
	}
}

void debuggerWindow_moveIP()
{
	if (g_debugger_window)
	{
		auto* evt = new wxCommandEvent(wxEVT_MOVE_IP);
		wxQueueEvent(g_debugger_window, evt);
	}
}

void debuggerWindow_notifyDebugBreakpointHit2()
{
	if (g_debugger_window)
	{
		auto* evt = new wxCommandEvent(wxEVT_BREAKPOINT_HIT);
		wxQueueEvent(g_debugger_window, evt);
	}
}

void debuggerWindow_notifyRun()
{
	if (g_debugger_window)
	{
		auto* evt = new wxCommandEvent(wxEVT_RUN);
		wxQueueEvent(g_debugger_window, evt);
	}
}

void debuggerWindow_notifyModuleLoaded(void* module)
{
	if (g_debugger_window)
	{
		auto* evt = new wxCommandEvent(wxEVT_NOTIFY_MODULE_LOADED);
		evt->SetClientData(module);
		wxQueueEvent(g_debugger_window, evt);
	}
}

void debuggerWindow_notifyModuleUnloaded(void* module)
{
	if (g_debugger_window)
	{
		auto* evt = new wxCommandEvent(wxEVT_NOTIFY_MODULE_UNLOADED);
		evt->SetClientData(module);
		wxQueueEvent(g_debugger_window, evt);
	}
}