using UnityEngine;
using UnityEditor;
using UnityEngine.UIElements;
using UnityEditor.UIElements;

[CustomEditor(typeof(FingerShapedController))]
public class FingerShapedControllerEditor : Editor
{
    private const string CommonUssPath = "Assets/Scripts/Streamingle/StreamingleControl/Editor/UXML/StreamingleCommon.uss";
    private static readonly string[] fingerPropNames = { "ThumbCurl", "IndexCurl", "MiddleCurl", "RingCurl", "PinkyCurl" };
    private static readonly string[] fingerKoreanNames = { "엄지", "검지", "중지", "약지", "새끼" };

    private FingerShapedController controller;

    public override VisualElement CreateInspectorGUI()
    {
        controller = target as FingerShapedController;
        if (controller == null) return new VisualElement();
        var root = new VisualElement();

        var commonUss = AssetDatabase.LoadAssetAtPath<StyleSheet>(CommonUssPath);
        if (commonUss != null) root.styleSheets.Add(commonUss);

        // 활성화 토글
        var enabledProp = serializedObject.FindProperty("m_Enabled");
        var enableToggle = new PropertyField(enabledProp, "손가락 제어 활성화");
        root.Add(enableToggle);

        // 왼손
        var leftFoldout = new Foldout { text = "왼손", value = true };
        leftFoldout.Add(BuildHandControls("left"));
        root.Add(leftFoldout);

        // 오른손
        var rightFoldout = new Foldout { text = "오른손", value = true };
        rightFoldout.Add(BuildHandControls("right"));
        root.Add(rightFoldout);

        // 프리셋 버튼
        root.Add(BuildPresetButtons());

        return root;
    }

    private VisualElement BuildHandControls(string prefix)
    {
        var container = new VisualElement();
        container.style.backgroundColor = new Color(0, 0, 0, 0.08f);
        container.style.borderTopLeftRadius = container.style.borderTopRightRadius =
            container.style.borderBottomLeftRadius = container.style.borderBottomRightRadius = 4;
        container.style.paddingTop = container.style.paddingBottom =
            container.style.paddingLeft = container.style.paddingRight = 6;

        // 헤더: 활성화 토글 + 초기화 버튼
        var header = new VisualElement { style = { flexDirection = FlexDirection.Row, alignItems = Align.Center, marginBottom = 4 } };
        var handEnabledProp = serializedObject.FindProperty($"{prefix}HandEnabled");
        header.Add(new PropertyField(handEnabledProp, "제어 활성화") { style = { flexGrow = 1 } });
        var resetBtn = new Button(() => ResetHandValues(prefix)) { text = "초기화" };
        resetBtn.style.width = 60;
        header.Add(resetBtn);
        container.Add(header);

        // 손가락 슬라이더 (가로 배치)
        var slidersRow = new VisualElement { style = { flexDirection = FlexDirection.Row, justifyContent = Justify.Center, marginTop = 4 } };

        for (int i = 0; i < fingerPropNames.Length; i++)
        {
            var fingerProp = serializedObject.FindProperty($"{prefix}{fingerPropNames[i]}");
            slidersRow.Add(BuildVerticalSlider(fingerKoreanNames[i], fingerProp));
        }
        container.Add(slidersRow);

        // 벌리기 슬라이더
        var spreadProp = serializedObject.FindProperty($"{prefix}SpreadFingers");
        var spreadSlider = new Slider("벌리기", -1f, 1f) { showInputField = true };
        spreadSlider.BindProperty(spreadProp);
        spreadSlider.style.marginTop = 8;
        container.Add(spreadSlider);

        // 비활성 시 숨기기
        container.TrackPropertyValue(handEnabledProp, prop =>
        {
            slidersRow.style.display = prop.boolValue ? DisplayStyle.Flex : DisplayStyle.None;
            spreadSlider.style.display = prop.boolValue ? DisplayStyle.Flex : DisplayStyle.None;
        });
        slidersRow.style.display = handEnabledProp.boolValue ? DisplayStyle.Flex : DisplayStyle.None;
        spreadSlider.style.display = handEnabledProp.boolValue ? DisplayStyle.Flex : DisplayStyle.None;

        return container;
    }

    private VisualElement BuildVerticalSlider(string label, SerializedProperty prop)
    {
        var column = new VisualElement { style = { alignItems = Align.Center, width = 45, marginLeft = 2, marginRight = 2 } };

        column.Add(new Label(label) { style = { fontSize = 10, color = new Color(0.6f, 0.6f, 0.6f) } });

        var valueLabel = new Label(prop.floatValue.ToString("F1")) { style = { fontSize = 10, color = new Color(0.6f, 0.6f, 0.6f) } };
        column.Add(valueLabel);

        // UI Toolkit Slider in vertical mode (direction: Vertical 대신 세로용 Slider 사용)
        // SliderDirection.Vertical 사용
        var slider = new Slider(-1f, 1f) { direction = SliderDirection.Vertical };
        slider.style.height = 100;
        slider.style.width = 25;
        slider.BindProperty(prop);
        slider.RegisterValueChangedCallback(evt => valueLabel.text = evt.newValue.ToString("F1"));

        // 초기값 동기화
        column.TrackPropertyValue(prop, p => valueLabel.text = p.floatValue.ToString("F1"));

        column.Add(slider);
        return column;
    }

    private VisualElement BuildPresetButtons()
    {
        var container = new VisualElement { style = { marginTop = 10 } };
        container.Add(new Label("손 모양 프리셋") { style = { unityFontStyleAndWeight = FontStyle.Bold, marginBottom = 4 } });

        string[,] presets = {
            { "가위", "바위", "보" },
            { "브이", "검지", "초기화" }
        };

        for (int row = 0; row < 2; row++)
        {
            var btnRow = new VisualElement { style = { flexDirection = FlexDirection.Row, justifyContent = Justify.Center, marginBottom = 4 } };
            for (int col = 0; col < 3; col++)
            {
                string presetName = presets[row, col];
                var btn = new Button(() => ApplyPreset(presetName)) { text = presetName };
                btn.style.height = 30;
                btn.style.width = 100;
                btn.style.marginLeft = btn.style.marginRight = 4;
                btnRow.Add(btn);
            }
            container.Add(btnRow);
        }

        return container;
    }

    private void ResetHandValues(string prefix)
    {
        serializedObject.Update();
        string[] props = { "ThumbCurl", "IndexCurl", "MiddleCurl", "RingCurl", "PinkyCurl", "SpreadFingers" };
        foreach (var prop in props)
            serializedObject.FindProperty($"{prefix}{prop}").floatValue = 0f;
        serializedObject.ApplyModifiedProperties();
    }

    private void ApplyPreset(string presetName)
    {
        if (!controller.enabled)
            controller.enabled = true;

        switch (presetName)
        {
            case "가위": SetPreset(1f, 1f, -1f, -1f, -1f, 0.3f); break;
            case "바위": SetPreset(-1f, -1f, -1f, -1f, -1f, 0f); break;
            case "보": SetPreset(1f, 1f, 1f, 1f, 1f, 1f); break;
            case "브이": SetPreset(-1f, 1f, 1f, -1f, -1f, 1f); break;
            case "검지": SetPreset(-1f, 1f, -1f, -1f, -1f, 0f); break;
            case "초기화": SetPreset(0.8f, 0.8f, 0.8f, 0.8f, 0.8f, 0.8f); break;
        }
    }

    private void SetPreset(float thumb, float index, float middle, float ring, float pinky, float spread)
    {
        if (controller.leftHandEnabled)
        {
            controller.leftThumbCurl = thumb;
            controller.leftIndexCurl = index;
            controller.leftMiddleCurl = middle;
            controller.leftRingCurl = ring;
            controller.leftPinkyCurl = pinky;
            controller.leftSpreadFingers = spread;
        }

        if (controller.rightHandEnabled)
        {
            controller.rightThumbCurl = thumb;
            controller.rightIndexCurl = index;
            controller.rightMiddleCurl = middle;
            controller.rightRingCurl = ring;
            controller.rightPinkyCurl = pinky;
            controller.rightSpreadFingers = spread;
        }

        EditorUtility.SetDirty(controller);
    }
}