#pragma once

#include "Panel.h"
#include "Core/AssetItem.h"
#include "UI/PopupState.h"
#include "UI/SearchText.h"
#include "UI/TreeView.h"

#include <functional>

namespace XCEngine {
namespace Editor {

class ProjectPanel : public Panel {
public:
    ProjectPanel();
    void Render() override;
    void Initialize(const std::string& projectPath);

private:
    struct AssetDragDropState {
        bool dragging = false;
        bool hoveredTarget = false;
        bool hoveredValidTarget = false;
        std::string sourcePath;
        std::string deliveredSourcePath;
        AssetItemPtr deliveredTarget;

        void Reset() {
            dragging = false;
            hoveredTarget = false;
            hoveredValidTarget = false;
            sourcePath.clear();
            deliveredSourcePath.clear();
            deliveredTarget.reset();
        }
    };

    struct AssetItemInteraction {
        bool clicked = false;
        bool openRequested = false;
    };

    struct ContextMenuTarget {
        AssetItemPtr item;
        std::string subjectPath;
        std::string createFolderPath;
        bool showInExplorerSelect = false;
    };

    void BeginAssetDragDropFrame();
    void RegisterFolderDropTarget(IProjectManager& manager, const AssetItemPtr& folder);
    void FinalizeAssetDragDrop(IProjectManager& manager);
    void BeginRename(const AssetItemPtr& item);
    bool CommitRename(IProjectManager& manager);
    void CancelRename();
    ContextMenuTarget BuildContextMenuTarget(IProjectManager& manager, const AssetItemPtr& item) const;
    void DrawProjectContextMenu(IProjectManager& manager, const ContextMenuTarget& target);
    void RenderToolbar();
    void RenderFolderTreePane(IProjectManager& manager);
    void RenderFolderTreeNode(IProjectManager& manager, const AssetItemPtr& folder, const std::string& currentFolderPath);
    void RenderBrowserPane(IProjectManager& manager);
    void RenderBrowserHeader(IProjectManager& manager);
    AssetItemInteraction RenderAssetItem(const AssetItemPtr& item, bool isSelected);
    static bool MatchesSearch(const AssetItemPtr& item, const UI::SearchQuery& searchQuery);
    static bool IsCurrentTreeBranch(const std::string& currentFolderPath, const std::string& folderPath);
    
    char m_searchBuffer[256] = "";
    float m_navigationWidth = UI::ProjectNavigationDefaultWidth();
    UI::TreeViewState m_folderTreeState;
    UI::InlineTextEditState<std::string, 256> m_renameState;
    AssetDragDropState m_assetDragDropState;
    std::function<void()> m_deferredContextAction;
};

}
}