#pragma once

#ifndef NOMINMAX
#define NOMINMAX
#endif

#include <Host/AutoScreenshot.h>
#include <Host/InputModifierTracker.h>
#include <Host/NativeRenderer.h>

#include "Icons/ProductBuiltInIcons.h"
#include "Panels/ProductHierarchyPanel.h"
#include "Panels/ProductProjectPanel.h"

#include <XCEditor/Foundation/UIEditorShortcutManager.h>
#include <XCEditor/Shell/UIEditorShellAsset.h>
#include <XCEditor/Shell/UIEditorShellInteraction.h>
#include <XCEditor/Shell/UIEditorWorkspaceController.h>

#include <windows.h>
#include <windowsx.h>

#include <cstdint>
#include <filesystem>
#include <string>
#include <string_view>
#include <vector>

namespace XCEngine::UI::Editor {

class Application : public UIEditorHostCommandHandler {
public:
    Application() = default;

    int Run(HINSTANCE hInstance, int nCmdShow);

    UIEditorHostCommandEvaluationResult EvaluateHostCommand(
        std::string_view commandId) const override;
    UIEditorHostCommandDispatchResult DispatchHostCommand(
        std::string_view commandId) override;

private:
    static LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);

    bool Initialize(HINSTANCE hInstance, int nCmdShow);
    void Shutdown();
    void RenderFrame();
    void OnResize(UINT width, UINT height);
    void OnDpiChanged(UINT dpi, const RECT& suggestedRect);
    bool IsPointerInsideClientArea() const;
    bool ApplyCurrentCursor() const;
    LPCWSTR ResolveCurrentCursorResource() const;
    float GetDpiScale() const;
    float PixelsToDips(float pixels) const;
    ::XCEngine::UI::UIPoint ConvertClientPixelsToDips(LONG x, LONG y) const;
    void LogRuntimeTrace(std::string_view channel, std::string_view message) const;
    void ApplyHostCaptureRequests(const UIEditorShellInteractionResult& result);
    void ApplyHostedContentCaptureRequests();
    bool HasShellInteractiveCaptureState() const;
    bool HasInteractiveCaptureState() const;
    UIEditorShellInteractionDefinition BuildShellDefinition() const;
    void UpdateLastStatus(const UIEditorShellInteractionResult& result);
    std::string DescribeWorkspaceState() const;
    std::string DescribeInputEvents(
        const std::vector<::XCEngine::UI::UIInputEvent>& events) const;
    void QueuePointerEvent(
        ::XCEngine::UI::UIInputEventType type,
        ::XCEngine::UI::UIPointerButton button,
        WPARAM wParam,
        LPARAM lParam);
    void QueuePointerLeaveEvent();
    void QueuePointerWheelEvent(short wheelDelta, WPARAM wParam, LPARAM lParam);
    void QueueKeyEvent(::XCEngine::UI::UIInputEventType type, WPARAM wParam, LPARAM lParam);
    void QueueCharacterEvent(WPARAM wParam, LPARAM lParam);
    void QueueWindowFocusEvent(::XCEngine::UI::UIInputEventType type);
    static std::filesystem::path ResolveRepoRootPath();
    static LONG WINAPI HandleUnhandledException(EXCEPTION_POINTERS* exceptionInfo);

    HWND m_hwnd = nullptr;
    HINSTANCE m_hInstance = nullptr;
    ATOM m_windowClassAtom = 0;
    ::XCEngine::UI::Editor::Host::NativeRenderer m_renderer = {};
    ::XCEngine::UI::Editor::Host::AutoScreenshotController m_autoScreenshot = {};
    ::XCEngine::UI::Editor::Host::InputModifierTracker m_inputModifierTracker = {};
    EditorShellAsset m_shellAsset = {};
    EditorShellAssetValidationResult m_shellValidation = {};
    UIEditorWorkspaceController m_workspaceController = {};
    UIEditorShortcutManager m_shortcutManager = {};
    App::ProductBuiltInIcons m_builtInIcons = {};
    App::ProductHierarchyPanel m_hierarchyPanel = {};
    App::ProductProjectPanel m_projectPanel = {};
    UIEditorShellInteractionServices m_shellServices = {};
    UIEditorShellInteractionState m_shellInteractionState = {};
    UIEditorShellInteractionFrame m_shellFrame = {};
    std::vector<::XCEngine::UI::UIInputEvent> m_pendingInputEvents = {};
    bool m_trackingMouseLeave = false;
    std::string m_validationMessage = {};
    std::string m_lastStatus = {};
    std::string m_lastMessage = {};
    UINT m_windowDpi = 96u;
    float m_dpiScale = 1.0f;
};

int RunXCUIEditorApp(HINSTANCE hInstance, int nCmdShow);

} // namespace XCEngine::UI::Editor