#pragma once

#include <XCEngine/UI/DrawData.h>

#include <cstddef>
#include <string>
#include <vector>

namespace XCEngine::Components {
class GameObject;
}

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

class EditorContext;

struct AddComponentPanelHostContext {
    bool mounted = false;
    ::XCEngine::UI::UIRect bounds = {};
    bool focused = false;
    bool focusGained = false;
    bool focusLost = false;
};

class AddComponentPanel {
public:
    void ResetInteractionState();
    void Update(
        EditorContext& context,
        const AddComponentPanelHostContext& hostContext,
        const std::vector<::XCEngine::UI::UIInputEvent>& inputEvents);
    void Append(::XCEngine::UI::UIDrawList& drawList) const;

private:
    struct EntryPresentation {
        std::string componentTypeName = {};
        std::string displayName = {};
        std::string disabledReason = {};
        ::XCEngine::UI::UIRect rect = {};
        bool enabled = false;
    };

    void ResetPanelState();
    void RebuildEntries(const ::XCEngine::Components::GameObject* gameObject);
    bool TryActivateEntry(EditorContext& context, std::size_t entryIndex);
    std::size_t HitTestEntry(const ::XCEngine::UI::UIPoint& point) const;

    bool m_visible = false;
    bool m_hasTarget = false;
    ::XCEngine::UI::UIRect m_bounds = {};
    std::string m_targetDisplayName = {};
    std::vector<EntryPresentation> m_entries = {};
    std::size_t m_hoveredEntryIndex = static_cast<std::size_t>(-1);
    std::size_t m_pressedEntryIndex = static_cast<std::size_t>(-1);
};

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