#pragma once

#ifndef NOMINMAX
#define NOMINMAX
#endif

#include <XCEditor/Workspace/UIEditorWindowWorkspaceModel.h>
#include <XCEditor/Workspace/UIEditorWindowWorkspaceController.h>
#include <XCEditor/Workspace/UIEditorWorkspaceController.h>

#include <windows.h>

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

namespace XCEngine::UI::Editor::App {

class EditorContext;
class EditorWindow;

struct EditorWindowHostConfig {
    HINSTANCE hInstance = nullptr;
    const wchar_t* windowClassName = L"";
    DWORD windowStyle = 0;
    const wchar_t* primaryWindowTitle = L"";
    void* windowUserData = nullptr;
};

class EditorWindowManager final {
public:
    struct CreateParams {
        std::string windowId = {};
        std::wstring title = {};
        int initialX = CW_USEDEFAULT;
        int initialY = CW_USEDEFAULT;
        int initialWidth = 1540;
        int initialHeight = 940;
        int showCommand = SW_SHOW;
        bool primary = false;
        bool autoCaptureOnStartup = false;
    };

    EditorWindowManager(
        EditorWindowHostConfig hostConfig,
        std::filesystem::path repoRoot,
        EditorContext& editorContext);
    ~EditorWindowManager();

    EditorWindowManager(const EditorWindowManager&) = delete;
    EditorWindowManager& operator=(const EditorWindowManager&) = delete;
    EditorWindowManager(EditorWindowManager&&) = delete;
    EditorWindowManager& operator=(EditorWindowManager&&) = delete;

    EditorWindow* CreateEditorWindow(
        UIEditorWorkspaceController workspaceController,
        const CreateParams& params);
    void HandlePendingNativeWindowCreated(HWND hwnd);
    void Shutdown();

    EditorWindow* FindWindow(HWND hwnd);
    const EditorWindow* FindWindow(HWND hwnd) const;
    EditorWindow* FindWindow(std::string_view windowId);
    const EditorWindow* FindWindow(std::string_view windowId) const;
    EditorWindow* FindPrimaryWindow();
    const EditorWindow* FindPrimaryWindow() const;

    bool HasWindows() const;
    void DestroyClosedWindows();
    void RenderAllWindows();

    bool IsGlobalTabDragActive() const;
    bool OwnsActiveGlobalTabDrag(std::string_view windowId) const;
    void EndGlobalTabDragSession();
    void HandleDestroyedWindow(HWND hwnd);
    bool HandleGlobalTabDragPointerMove(HWND hwnd);
    bool HandleGlobalTabDragPointerButtonUp(HWND hwnd);

    void ProcessPendingGlobalTabDragStarts();
    void ProcessPendingDetachRequests();

private:
    struct GlobalTabDragSession {
        bool active = false;
        std::string panelWindowId = {};
        std::string sourceNodeId = {};
        std::string panelId = {};
        POINT screenPoint = {};
    };

    void DestroyEditorWindow(EditorWindow& window);
    UIEditorWindowWorkspaceSet BuildWindowWorkspaceSet(
        std::string_view activeWindowId = {}) const;
    UIEditorWindowWorkspaceController BuildLiveWindowWorkspaceController(
        std::string_view activeWindowId) const;
    bool SynchronizeWindowsFromWindowSet(
        const UIEditorWindowWorkspaceSet& windowSet,
        std::string_view preferredNewWindowId,
        const POINT& preferredScreenPoint);
    bool SynchronizeWindowsFromController(
        const UIEditorWindowWorkspaceController& windowWorkspaceController,
        std::string_view preferredNewWindowId,
        const POINT& preferredScreenPoint);
    UIEditorWorkspaceController BuildWorkspaceControllerForWindow(
        const UIEditorWindowWorkspaceState& windowState) const;
    std::wstring BuildWindowTitle(
        const UIEditorWorkspaceController& workspaceController) const;
    RECT BuildDetachedWindowRect(const POINT& screenPoint) const;
    void BeginGlobalTabDragSession(
        std::string_view panelWindowId,
        std::string_view sourceNodeId,
        std::string_view panelId,
        const POINT& screenPoint);
    EditorWindow* FindTopmostWindowAtScreenPoint(
        const POINT& screenPoint,
        std::string_view excludedWindowId = {});
    const EditorWindow* FindTopmostWindowAtScreenPoint(
        const POINT& screenPoint,
        std::string_view excludedWindowId = {}) const;
    bool TryStartGlobalTabDrag(EditorWindow& sourceWindow);
    bool TryProcessDetachRequest(EditorWindow& sourceWindow);
    void LogRuntimeTrace(std::string_view channel, std::string_view message) const;

    EditorWindowHostConfig m_hostConfig = {};
    std::filesystem::path m_repoRoot = {};
    EditorContext& m_editorContext;
    std::vector<std::unique_ptr<EditorWindow>> m_windows = {};
    GlobalTabDragSession m_globalTabDragSession = {};
    EditorWindow* m_pendingCreateWindow = nullptr;
};

} // namespace XCEngine::UI::Editor::App