#if UNITY_EDITOR
using UnityEditor;
using UnityEngine;

[CustomPropertyDrawer(typeof(CircularBuffer<>))]
public class CircularBufferDrawer : PropertyDrawer
{
    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
    {
        EditorGUI.BeginProperty(position, label, property);

        EditorGUI.PrefixLabel(position, GUIUtility.GetControlID(FocusType.Passive), label);

        EditorGUI.indentLevel++;

        SerializedProperty bufferSizeProp = property.FindPropertyRelative("bufferSize");
        int bufferSize = bufferSizeProp.intValue;

        EditorGUI.PropertyField(
            new Rect(position.x, position.y + EditorGUIUtility.singleLineHeight, position.width, EditorGUIUtility.singleLineHeight),
            bufferSizeProp);

        SerializedProperty bufferProp = property.FindPropertyRelative("buffer");

        EditorGUI.LabelField(
            new Rect(position.x, position.y + EditorGUIUtility.singleLineHeight * 2, position.width, EditorGUIUtility.singleLineHeight),
            "Buffer Elements");

        float lineHeight = EditorGUIUtility.singleLineHeight;
        float bufferHeight = lineHeight * bufferSize;

        Rect bufferRect = new Rect(position.x, position.y + EditorGUIUtility.singleLineHeight * 3, position.width, bufferHeight);

        EditorGUI.PropertyField(bufferRect, bufferProp, GUIContent.none, true);

        EditorGUI.indentLevel--;

        EditorGUI.EndProperty();
    }

    public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
    {
        SerializedProperty bufferSizeProp = property.FindPropertyRelative("bufferSize");
        int bufferSize = bufferSizeProp.intValue;

        return EditorGUIUtility.singleLineHeight * (bufferSize + 3); // 1 for buffer size, 1 for label, and bufferSize for buffer elements
    }
}

#endif