#pragma once

#include "Panel.h"

#include "XCUIBackend/XCUIHostedPreviewPresenter.h"
#include "XCUIBackend/XCUIInputBridge.h"
#include "XCUIBackend/XCUIPanelCanvasHost.h"
#include "XCUIBackend/XCUIDemoRuntime.h"

#include <cstdint>
#include <memory>
#include <string>

namespace XCEngine {
namespace NewEditor {

struct XCUIDemoPanelFrameComposeOptions {
    float canvasHeight = 0.0f;
    float canvasTopInset = 0.0f;
    bool hostedPreviewEnabled = true;
    bool showCanvasHud = true;
    bool showDebugRects = true;
    std::uint64_t timestampNanoseconds = 0;
    const char* canvasChildId = "XCUIDemoCanvasHost";
    const ::XCEngine::Editor::XCUIBackend::XCUIInputBridgeFrameSnapshot* inputSnapshot = nullptr;
    bool useDefaultPlaceholder = true;
    const char* placeholderTitle = nullptr;
    const char* placeholderSubtitle = nullptr;
    bool drawPreviewFrame = true;
    const char* badgeTitle = nullptr;
    const char* badgeSubtitle = nullptr;
};

struct XCUIDemoPanelFrameComposition {
    ::XCEngine::Editor::XCUIBackend::XCUIPanelCanvasSession canvasSession = {};
    ::XCEngine::Editor::XCUIBackend::XCUIInputBridgeFrameSnapshot inputSnapshot = {};
    ::XCEngine::Editor::XCUIBackend::XCUIInputBridgeFrameDelta inputDelta = {};
    ::XCEngine::Editor::XCUIBackend::XCUIDemoInputState input = {};
    const ::XCEngine::Editor::XCUIBackend::XCUIDemoFrameResult* frame = nullptr;
    ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewStats previewStats = {};
    ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewSurfaceDescriptor hostedSurfaceDescriptor = {};
    ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewSurfaceImage hostedSurfaceImage = {};
    bool hostedPreviewEnabled = false;
    bool nativeHostedPreview = false;
    bool hasHostedSurfaceDescriptor = false;
    bool showHostedSurfaceImage = false;
    std::string previewPathLabel = {};
    std::string previewStateLabel = {};
};

class XCUIDemoPanel : public Panel {
public:
    explicit XCUIDemoPanel(
        ::XCEngine::Editor::XCUIBackend::IXCUIInputSnapshotSource* inputSource = nullptr);
    XCUIDemoPanel(
        ::XCEngine::Editor::XCUIBackend::IXCUIInputSnapshotSource* inputSource,
        std::unique_ptr<::XCEngine::Editor::XCUIBackend::IXCUIHostedPreviewPresenter> previewPresenter,
        std::unique_ptr<::XCEngine::Editor::XCUIBackend::IXCUIPanelCanvasHost> canvasHost = nullptr);
    ~XCUIDemoPanel() override = default;

    void Render() override;
    const XCUIDemoPanelFrameComposition& ComposeFrame(
        const XCUIDemoPanelFrameComposeOptions& options = XCUIDemoPanelFrameComposeOptions());
    void SetHostedPreviewEnabled(bool enabled);
    void SetHostedPreviewPresenter(
        std::unique_ptr<::XCEngine::Editor::XCUIBackend::IXCUIHostedPreviewPresenter> previewPresenter);
    void SetCanvasHost(
        std::unique_ptr<::XCEngine::Editor::XCUIBackend::IXCUIPanelCanvasHost> canvasHost);
    bool IsHostedPreviewEnabled() const { return m_hostedPreviewEnabled; }
    bool IsUsingNativeHostedPreview() const;
    const ::XCEngine::Editor::XCUIBackend::XCUIDemoFrameResult& GetFrameResult() const;
    const ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewStats& GetLastPreviewStats() const;
    const XCUIDemoPanelFrameComposition& GetLastFrameComposition() const;
    bool GetLastReloadSucceeded() const { return m_lastReloadSucceeded; }

private:
    bool m_lastReloadSucceeded = false;
    bool m_hostedPreviewEnabled = true;
    bool m_showCanvasHud = true;
    bool m_showDebugRects = true;
    ::XCEngine::Editor::XCUIBackend::IXCUIInputSnapshotSource* m_inputSource = nullptr;
    ::XCEngine::Editor::XCUIBackend::XCUIInputBridge m_inputBridge;
    ::XCEngine::Editor::XCUIBackend::XCUIDemoRuntime m_runtime;
    std::unique_ptr<::XCEngine::Editor::XCUIBackend::IXCUIHostedPreviewPresenter> m_previewPresenter;
    std::unique_ptr<::XCEngine::Editor::XCUIBackend::IXCUIPanelCanvasHost> m_canvasHost;
    ::XCEngine::Editor::XCUIBackend::XCUIHostedPreviewStats m_lastPreviewStats = {};
    XCUIDemoPanelFrameComposition m_lastFrameComposition = {};
};

} // namespace NewEditor
} // namespace XCEngine