XCEngine/editor/app/Windowing/Runtime/EditorWindowRuntimeController.h

#pragma once

#ifndef NOMINMAX
#define NOMINMAX
#endif

#include "Windowing/Content/EditorWindowContentController.h"
#include "Windowing/Runtime/EditorWindowScreenshotController.h"

#include <Rendering/Host/EditorWindowRenderRuntime.h>

#include <XCEngine/UI/DrawData.h>

#include <chrono>
#include <cstdint>
#include <filesystem>
#include <memory>
#include <optional>
#include <string>
#include <vector>

namespace XCEngine::UI {

class UIDrawList;

} // namespace XCEngine::UI

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

class EditorContext;

class EditorWindowRuntimeController final {
public:
    EditorWindowRuntimeController(
        EditorContext& editorContext,
        std::unique_ptr<EditorWindowContentController> contentController,
        std::unique_ptr<Rendering::Host::EditorWindowRenderRuntime> renderRuntime);
    ~EditorWindowRuntimeController();

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

    bool IsReady() const;
    EditorWindowContentCapabilities GetCapabilities() const;

    EditorWindowWorkspaceBinding* TryGetWorkspaceBinding();
    const EditorWindowWorkspaceBinding* TryGetWorkspaceBinding() const;
    EditorWindowDockHostBinding* TryGetDockHostBinding();
    const EditorWindowDockHostBinding* TryGetDockHostBinding() const;
    const EditorWindowInputFeedbackBinding* TryGetInputFeedbackBinding() const;
    const EditorWindowTitleBarBinding* TryGetTitleBarBinding() const;

    const UIEditorShellInteractionFrame& GetShellFrame() const;
    const UIEditorShellInteractionState& GetShellInteractionState() const;
    ::XCEngine::UI::UISize ResolveMinimumOuterSize() const;

    void SetDpiScale(float dpiScale);
    ::XCEngine::UI::Editor::UIEditorTextMeasurer& GetTextMeasurer();
    const ::XCEngine::UI::Editor::UIEditorTextMeasurer& GetTextMeasurer() const;
    const ::XCEngine::UI::UITextureHandle& GetTitleBarLogoIcon() const;

    bool Initialize(
        const Rendering::Host::EditorWindowRenderRuntimeInitializeParams& renderParams,
        const std::filesystem::path& repoRoot,
        const std::filesystem::path& captureRoot,
        bool autoCaptureOnStartup);
    void Shutdown();
    void ResetInteractionState();
    bool ApplyResize(std::uint32_t width, std::uint32_t height);

    void PrepareEditorContext();
    bool IsEditorContextValid() const;
    void AppendInvalidFrame(::XCEngine::UI::UIDrawList& drawList) const;
    Rendering::Host::EditorWindowRenderRuntimeFrameContext BeginFrame();
    Rendering::Host::EditorWindowRenderRuntimePresentResult Present(
        const ::XCEngine::UI::UIDrawData& drawData);
    EditorWindowFrameTransferRequests UpdateAndAppend(
        const ::XCEngine::UI::UIRect& bounds,
        const std::vector<::XCEngine::UI::UIInputEvent>& inputEvents,
        std::optional<EditorWindowScreenPoint> cursorScreenPoint,
        bool primary,
        bool globalTabDragActive,
        bool useDetachedTitleBarTabStrip,
        ::XCEngine::UI::UIDrawData& drawData);
    void RenderRequestedViewports(
        const ::XCEngine::Rendering::RenderContext& renderContext);

    void RequestManualScreenshot(std::string reason);
    std::string BuildCaptureStatusText() const;
    std::string BuildFrameRateText() const;

private:
    void ResetFrameTiming();
    void UpdateFrameTiming();
    void RefreshDisplayedFrameStats();

    EditorContext& m_editorContext;
    std::unique_ptr<Rendering::Host::EditorWindowRenderRuntime> m_renderRuntime = {};
    EditorWindowScreenshotController m_screenshotController = {};
    ::XCEngine::UI::UITextureHandle m_titleBarLogoIcon = {};
    std::unique_ptr<EditorWindowContentController> m_contentController = {};
    std::chrono::steady_clock::time_point m_lastFrameTime = {};
    bool m_hasLastFrameTime = false;
    float m_smoothedDeltaTimeSeconds = 0.0f;
    float m_frameStatsDisplayAccumulatorSeconds = 0.0f;
    float m_displayFps = 0.0f;
    float m_displayFrameTimeMs = 0.0f;
    float m_dpiScale = 1.0f;
    std::string m_frameRateText = {};
    bool m_ready = false;
};

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