#pragma once

#include <array>
#include <sophia/frame_info.hpp>
#include <sophia/handles.hpp>
#include <sophia/ui/panel.hpp>

#include "../editor_context.hpp"

class SceneHierarchyPanel : public sophia::Panel {
 public:
  // `cubeMesh` is what "+ Cube" gives new entities.
  SceneHierarchyPanel(EditorContext& context, sophia::MeshHandle cubeMesh)
      : Panel{{.name = "Scene Hierarchy", .locked = true}},
        context{context},
        cubeMesh{cubeMesh} {}

  void onUpdate(const sophia::FrameInfo& frameInfo) override;

 private:
  // Switches between open scenes, renames the active one, and creates new
  // ones.
  void drawSceneSelector();
  // Replaces the selector with a text field editing the active scene's name.
  void drawSceneRename();

  EditorContext& context;
  sophia::MeshHandle cubeMesh;
  // For naming new scenes "Untitled 1", "Untitled 2", ...
  int untitledSceneCount = 0;

  // Set while the scene selector is a text field for renaming.
  bool renamingScene = false;
  // Frames the text field has left to become active after renaming starts;
  // focus can take a frame to land. If it never does, renaming ends.
  int renameFocusFrames = 0;
  std::array<char, 128> renameBuffer{};
};