#pragma once

#include <core/rect.h>
#include <core/types.h>
#include <core/vec2.h>
#include <platform/input.h>
#include <scene/node.h>

namespace extra2d {

// ============================================================================
// 鼠标事件结构
// ============================================================================
struct MouseEvent {
  MouseButton button;
  float x;
  float y;
  int mods; // 修饰键状态
};

// ============================================================================
// Widget 基类 - UI 组件的基础
// ============================================================================
class Widget : public Node {
public:
  Widget();
  ~Widget() override = default;

  void setSize(const Size &size);
  void setSize(float width, float height);
  Size size() const { return size_; }

  Rect boundingBox() const override;

  // ------------------------------------------------------------------------
  // 鼠标事件处理（子类可重写）
  // ------------------------------------------------------------------------
  virtual bool onMousePress(const MouseEvent &event) { return false; }
  virtual bool onMouseRelease(const MouseEvent &event) { return false; }
  virtual bool onMouseMove(const MouseEvent &event) { return false; }
  virtual void onMouseEnter() {}
  virtual void onMouseLeave() {}

  // ------------------------------------------------------------------------
  // 启用/禁用状态
  // ------------------------------------------------------------------------
  void setEnabled(bool enabled) { enabled_ = enabled; }
  bool isEnabled() const { return enabled_; }

  // ------------------------------------------------------------------------
  // 焦点状态
  // ------------------------------------------------------------------------
  void setFocused(bool focused) { focused_ = focused; }
  bool isFocused() const { return focused_; }

protected:
  // 供子类使用的辅助方法
  bool isPointInside(float x, float y) const {
    return boundingBox().containsPoint(Point(x, y));
  }

  // 子类重写此方法以支持自定义渲染
  virtual void onDrawWidget(Renderer &renderer) {}

  // 重写 Node 的 onDraw
  void onDraw(Renderer &renderer) override;

private:
  Size size_ = Size::Zero();
  bool enabled_ = true;
  bool focused_ = false;
  bool hovered_ = false;
};

} // namespace extra2d