using UnityEngine;
using UnityEditor;
using KindRetargeting;

[CustomEditor(typeof(FullBodyInverseKinematics))]
public class FullBodyInverseKinematicsEditor : BaseRetargetingEditor
{
    // Foldout 상태를 저장할 변수들
    private bool showBasicSettings = true;
    private bool showLimbSettings = false;
    private bool[] showLimbs = new bool[4]; // 0: leftArm, 1: rightArm, 2: leftLeg, 3: rightLeg

    // SerializedProperty 변수들
    private SerializedProperty animatorProp;
    private SerializedProperty iterationsProp;
    private SerializedProperty deltaThresholdProp;
    private SerializedProperty[] limbProps;
    private readonly string[] limbNames = { "Left Arm", "Right Arm", "Left Leg", "Right Leg" };
    private readonly string[] limbPropNames = { "leftArm", "rightArm", "leftLeg", "rightLeg" };

    protected override void OnEnable()
    {
        base.OnEnable();
        // SerializedProperty 초기화
        animatorProp = serializedObject.FindProperty("animator");
        iterationsProp = serializedObject.FindProperty("iterations");
        deltaThresholdProp = serializedObject.FindProperty("deltaThreshold");

        // Limb Properties 초기화
        limbProps = new SerializedProperty[4];
        for (int i = 0; i < 4; i++)
        {
            limbProps[i] = serializedObject.FindProperty(limbPropNames[i]);
        }
    }

    public override void OnInspectorGUI()
    {
        serializedObject.Update();

        EditorGUILayout.Space(5);

        // 기본 설정 섹션
        showBasicSettings = EditorGUILayout.Foldout(showBasicSettings, "IK 기본 설정", true);
        if (showBasicSettings)
        {
            EditorGUI.indentLevel++;
            EditorGUILayout.PropertyField(iterationsProp);
            EditorGUILayout.PropertyField(deltaThresholdProp);
            EditorGUI.indentLevel--;
        }

        EditorGUILayout.Space(5);

        // Limb Settings 섹션
        showLimbSettings = EditorGUILayout.Foldout(showLimbSettings, "Limb Settings", true);
        if (showLimbSettings)
        {
            EditorGUI.indentLevel++;
            
            // 각 Limb에 대한 Foldout
            for (int i = 0; i < 4; i++)
            {
                EditorGUILayout.BeginVertical(GUI.skin.box);
                showLimbs[i] = EditorGUILayout.Foldout(showLimbs[i], limbNames[i], true);
                if (showLimbs[i])
                {
                    DrawLimbIK(limbProps[i]);
                }
                EditorGUILayout.EndVertical();
            }
            
            EditorGUI.indentLevel--;
        }

        serializedObject.ApplyModifiedProperties();
    }

    private void DrawLimbIK(SerializedProperty limbProp)
    {
        EditorGUI.indentLevel++;

        // Enable IK 토글 추가
        SerializedProperty enableIKProp = limbProp.FindPropertyRelative("enableIK");
        EditorGUILayout.PropertyField(enableIKProp, new GUIContent("Enable IK"));

        EditorGUILayout.Space(2);

        // IK가 활성화된 경우에만 나머지 설정들을 표시
        if (enableIKProp.boolValue)
        {
            // End Target 설정
            SerializedProperty endTargetProp = limbProp.FindPropertyRelative("endTarget");
            EditorGUILayout.PropertyField(endTargetProp.FindPropertyRelative("target"), new GUIContent("End Target"));
            EditorGUILayout.Slider(endTargetProp.FindPropertyRelative("weight"), 0f, 1f, new GUIContent("End Weight"));

            EditorGUILayout.Space(2);

            // Middle Target 설정
            SerializedProperty middleTargetProp = limbProp.FindPropertyRelative("middleTarget");
            EditorGUILayout.PropertyField(middleTargetProp.FindPropertyRelative("target"), new GUIContent("Middle Target"));
            EditorGUILayout.Slider(middleTargetProp.FindPropertyRelative("weight"), 0f, 1f, new GUIContent("Middle Weight"));

            // 발목 타겟 설정
            EditorGUILayout.Space(2);
            SerializedProperty ankleTargetProp = limbProp.FindPropertyRelative("ankleTarget");
            EditorGUILayout.PropertyField(ankleTargetProp.FindPropertyRelative("target"), new GUIContent("Ankle Target"));
            EditorGUILayout.Slider(ankleTargetProp.FindPropertyRelative("weight"), 0f, 1f, new GUIContent("Ankle Weight"));
        }

        EditorGUI.indentLevel--;
    }
}