using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.UI;
using TMPro;

public static class VRBeatSaberSceneBuilder
{
    private const string MenuScene       = "Assets/VRBeatsKit/Scenes/Menu.unity";
    private const string SongCreatorDest = "Assets/Scenes/SongCreator.unity";

    // ─────────────────────────────────────────────
    //  ⓪ Fix — Set Graphics API to D3D11 (Oculus requirement)
    // ─────────────────────────────────────────────
    [MenuItem("Tools/VRBeatSaber/⓪ Fix — Set Graphics API to D3D11")]
    public static void FixGraphicsAPI()
    {
        var d3d11 = new[] { GraphicsDeviceType.Direct3D11 };

        PlayerSettings.SetUseDefaultGraphicsAPIs(BuildTarget.StandaloneWindows,   false);
        PlayerSettings.SetUseDefaultGraphicsAPIs(BuildTarget.StandaloneWindows64, false);
        PlayerSettings.SetGraphicsAPIs(BuildTarget.StandaloneWindows,   d3d11);
        PlayerSettings.SetGraphicsAPIs(BuildTarget.StandaloneWindows64, d3d11);

        Debug.Log("[SceneBuilder] ✓ Graphics API set to Direct3D11 for Windows.");
    }

    [MenuItem("Tools/VRBeatSaber/⓪ Fix — Allow HTTP connections")]
    public static void FixAllowHttp()
    {
        PlayerSettings.insecureHttpOption = InsecureHttpOption.AlwaysAllowed;
        Debug.Log("[SceneBuilder] ✓ Insecure HTTP connections allowed.");
    }

    // ─────────────────────────────────────────────
    //  Fix — Remove missing script components from open scene
    // ─────────────────────────────────────────────
    [MenuItem("Tools/VRBeatSaber/Fix — Remove Missing Scripts (open scene)")]
    public static void RemoveMissingScripts()
    {
        int removed = 0;
        foreach (var go in Object.FindObjectsByType<GameObject>(FindObjectsSortMode.None))
        {
            var so = new SerializedObject(go);
            var components = so.FindProperty("m_Component");
            for (int i = components.arraySize - 1; i >= 0; i--)
            {
                var comp = components.GetArrayElementAtIndex(i)
                                     .FindPropertyRelative("component")
                                     .objectReferenceValue;
                if (comp == null)
                {
                    components.DeleteArrayElementAtIndex(i);
                    removed++;
                }
            }
            so.ApplyModifiedPropertiesWithoutUndo();
        }

        var activeScene = UnityEngine.SceneManagement.SceneManager.GetActiveScene();
        EditorSceneManager.MarkSceneDirty(activeScene);
        Debug.Log($"[SceneBuilder] ✓ Removed {removed} missing script(s) from '{activeScene.name}'.");
    }

    // ─────────────────────────────────────────────
    //  ① Menu — Add Song Creator Button
    // ─────────────────────────────────────────────
    [MenuItem("Tools/VRBeatSaber/① Menu — Add Song Creator Button")]
    public static void PatchMenuAddSongCreatorButton()
    {
        var scene = EditorSceneManager.OpenScene(MenuScene, OpenSceneMode.Single);

        var settings = GameObject.Find("Settings");
        if (settings == null) { Debug.LogError("[SceneBuilder] 'Settings' not found."); return; }

        if (settings.transform.Find("BG/Song Creator") != null)
        { Debug.LogWarning("[SceneBuilder] Button already exists."); return; }

        var bg = settings.transform.Find("BG");
        if (bg == null) { Debug.LogError("[SceneBuilder] 'Settings/BG' not found."); return; }

        var btnGO = CreateStyledButton(bg, "Song Creator", new Vector2(0f, -20f), new Vector2(80f, 14f), 8f);
        var loader = btnGO.AddComponent<VRBeats.LoadSceneButton>();
        InjectPrivate(loader, "button",    btnGO.GetComponent<Button>());
        InjectPrivate(loader, "sceneName", "SongCreator");

        EditorSceneManager.MarkSceneDirty(scene);
        EditorSceneManager.SaveScene(scene);
        Debug.Log("[SceneBuilder] ✓ 'Song Creator' button added to Menu > Settings > BG.");
    }

    // ─────────────────────────────────────────────
    //  ② Build SongCreator Scene
    // ─────────────────────────────────────────────
    [MenuItem("Tools/VRBeatSaber/② Build SongCreator Scene")]
    public static void BuildSongCreatorScene()
    {
        if (AssetDatabase.LoadAssetAtPath<Object>(SongCreatorDest) != null)
            AssetDatabase.DeleteAsset(SongCreatorDest);

        if (!AssetDatabase.CopyAsset(MenuScene, SongCreatorDest))
        {
            Debug.LogError("[SceneBuilder] Failed to copy Menu.unity → SongCreator.unity");
            return;
        }
        AssetDatabase.Refresh();

        var scene = EditorSceneManager.OpenScene(SongCreatorDest, OpenSceneMode.Single);

        // Remove unneeded objects
        foreach (var name in new[] { "Logo", "SaberSelect", "SongSelect", "Sabers" })
        {
            var go = GameObject.Find(name);
            if (go != null) Object.DestroyImmediate(go);
        }

        // Repurpose Settings panel
        var panel = GameObject.Find("Settings");
        if (panel == null) { Debug.LogError("[SceneBuilder] 'Settings' not found."); return; }
        panel.name = "SongCreatorPanel";

        // Face forward, position in front of player, larger canvas
        var panelRect = panel.GetComponent<RectTransform>();
        panelRect.localRotation = Quaternion.identity;
        panelRect.localPosition = new Vector3(0f, 1.4f, 3.5f);
        panelRect.sizeDelta     = new Vector2(180f, 145f);

        // Clear BG children and rebuild UI
        var bg = panel.transform.Find("BG");
        if (bg != null)
        {
            for (int i = bg.childCount - 1; i >= 0; i--)
                Object.DestroyImmediate(bg.GetChild(i).gameObject);
        }
        else
        {
            var bgGO = new GameObject("BG");
            bgGO.transform.SetParent(panel.transform, false);
            var bgRect = bgGO.AddComponent<RectTransform>();
            bgRect.anchorMin = Vector2.zero;
            bgRect.anchorMax = Vector2.one;
            bgRect.offsetMin = bgRect.offsetMax = Vector2.zero;
            var bgImg = bgGO.AddComponent<Image>();
            bgImg.color = new Color(0.22f, 0.40f, 0.49f, 0.49f);
            bg = bgGO.transform;
        }

        // Add SongCreatorManager + dependencies to panel
        var manager   = panel.AddComponent<SongCreatorManager>();
        var uploader  = panel.AddComponent<BeatSageUploader>();
        var publisher = panel.AddComponent<NasPublisher>();

        // Build all UI and wire references
        BuildSongCreatorUI(bg, manager, uploader, publisher);

        EditorSceneManager.MarkSceneDirty(scene);
        EditorSceneManager.SaveScene(scene);
        Debug.Log("[SceneBuilder] ✓ SongCreator scene built: " + SongCreatorDest);
    }

    // ─────────────────────────────────────────────
    //  Song Creator UI  (canvas 180 × 145)
    //  X: -90 ~ +90 / Y: -72.5 ~ +72.5
    // ─────────────────────────────────────────────
    private static void BuildSongCreatorUI(Transform bg,
        SongCreatorManager manager, BeatSageUploader uploader, NasPublisher publisher)
    {
        var so = new SerializedObject(manager);

        // ── Title ──
        CreateLabel(bg, "Title",    "SONG CREATOR",               new Vector2(0,  64f), new Vector2(170f, 12f), 11f, Color.white, TextAlignmentOptions.Center);
        CreateLabel(bg, "Subtitle", "Create beatmaps and upload to NAS",
                                                                  new Vector2(0,  55f), new Vector2(170f,  7f),  5f, new Color(1,1,1,0.55f), TextAlignmentOptions.Center);
        CreateDivider(bg, "Div0", new Vector2(0, 50f), new Vector2(168f, 0.5f));

        // ── Audio Source ──
        CreateLabel(bg, "LblAudio", "AUDIO SOURCE", new Vector2(-62f, 44f), new Vector2(40f, 6f), 4.5f, new Color(1,1,1,0.65f));

        var dropdown = CreateDropdown(bg, "AudioDropdown", new Vector2(-8f, 36f), new Vector2(120f, 9f));
        var refreshBtn = CreateStyledButton(bg, "Refresh", new Vector2(70f, 36f), new Vector2(24f, 9f), 4.5f);

        var pathHint = CreateLabel(bg, "InputPathHint", "Path: ...", new Vector2(0f, 27f), new Vector2(168f, 6f), 3.8f, new Color(1,1,1,0.4f));

        CreateDivider(bg, "Div1", new Vector2(0, 22f), new Vector2(168f, 0.5f));

        // ── Add Audio ──
        CreateLabel(bg, "LblAdd", "ADD AUDIO", new Vector2(-66f, 17f), new Vector2(34f, 6f), 4.5f, new Color(1,1,1,0.65f));

        var fileBtn = CreateStyledButton(bg, "Browse File", new Vector2(-48f, 9f), new Vector2(44f, 9f), 5f);
        var addStatus = CreateLabel(bg, "AddStatusText", "No file selected.", new Vector2(28f, 9f), new Vector2(88f, 9f), 4f, new Color(1,1,1,0.5f));

        CreateLabel(bg, "LblOr", "— or —", new Vector2(0f, 1f), new Vector2(168f, 6f), 4f, new Color(1,1,1,0.4f), TextAlignmentOptions.Center);

        var urlInput   = CreateInputField(bg, "UrlInput",   "https://example.com/song.mp3", new Vector2(-16f, -7f), new Vector2(120f, 9f));
        var urlDlBtn   = CreateStyledButton(bg, "Download", new Vector2(68f, -7f), new Vector2(28f, 9f), 4.5f);

        CreateDivider(bg, "Div2", new Vector2(0, -12f), new Vector2(168f, 0.5f));

        // ── Metadata ──
        CreateLabel(bg, "LblMeta", "METADATA", new Vector2(-67f, -17f), new Vector2(30f, 6f), 4.5f, new Color(1,1,1,0.65f));

        CreateLabel(bg, "LblTitle",  "Title",  new Vector2(-72f, -25f), new Vector2(18f, 7f), 4.2f, new Color(1,1,1,0.7f));
        var titleInput  = CreateInputField(bg, "TitleInput",  "Song title",    new Vector2(14f, -25f), new Vector2(130f, 8f));

        CreateLabel(bg, "LblArtist", "Artist", new Vector2(-72f, -34f), new Vector2(18f, 7f), 4.2f, new Color(1,1,1,0.7f));
        var artistInput = CreateInputField(bg, "ArtistInput", "Artist name",   new Vector2(14f, -34f), new Vector2(130f, 8f));

        CreateLabel(bg, "LblBpm",    "BPM",    new Vector2(-72f, -43f), new Vector2(18f, 7f), 4.2f, new Color(1,1,1,0.7f));
        var bpmInput    = CreateInputField(bg, "BpmInput",    "120",           new Vector2(14f, -43f), new Vector2(130f, 8f), TMP_InputField.ContentType.DecimalNumber);

        CreateDivider(bg, "Div3", new Vector2(0, -48f), new Vector2(168f, 0.5f));

        // ── Difficulty ──
        CreateLabel(bg, "LblDiff", "DIFFICULTY", new Vector2(-64f, -53f), new Vector2(36f, 6f), 4.5f, new Color(1,1,1,0.65f));

        var group = bg.gameObject.AddComponent<ToggleGroup>();
        group.allowSwitchOff = true;

        var tNormal    = CreateToggle(bg, "ToggleNormal",    "Normal",  new Vector2(-60f, -61f), group, true);
        var tHard      = CreateToggle(bg, "ToggleHard",      "Hard",    new Vector2(-20f, -61f), group, true);
        var tExpert    = CreateToggle(bg, "ToggleExpert",    "Expert",  new Vector2( 20f, -61f), group, true);
        var tExpertPlus= CreateToggle(bg, "ToggleExpertPlus","Expert+", new Vector2( 60f, -61f), group, true);

        // ── Actions ──
        var generateBtn = CreateStyledButton(bg, "Create & Upload", new Vector2(-20f, -69f), new Vector2(98f, 10f), 6f);
        var backBtn     = CreateStyledButton(bg, "Back to Menu",    new Vector2( 65f, -69f), new Vector2(36f, 10f), 4.5f);

        // ── Progress (hidden by default) ──
        var progressGO = new GameObject("ProgressGroup");
        progressGO.transform.SetParent(bg, false);
        SetRect(progressGO, new Vector2(0f, -69f), new Vector2(170f, 10f));
        progressGO.SetActive(false);

        var statusTxt = CreateLabel(progressGO.transform, "StatusText", "Ready.",
            new Vector2(-10f, 0f), new Vector2(120f, 8f), 4f, new Color(1,1,1,0.8f));

        var sliderGO = CreateSlider(progressGO.transform, "ProgressSlider",
            new Vector2(65f, 0f), new Vector2(50f, 6f));

        // ── Wire SerializeField references ──
        so.FindProperty("audioDropdown")    .objectReferenceValue = dropdown;
        so.FindProperty("refreshBtn")       .objectReferenceValue = refreshBtn.GetComponent<Button>();
        so.FindProperty("inputPathHint")    .objectReferenceValue = pathHint.GetComponent<TMP_Text>();
        so.FindProperty("filePickerBtn")    .objectReferenceValue = fileBtn.GetComponent<Button>();
        so.FindProperty("addStatusText")    .objectReferenceValue = addStatus.GetComponent<TMP_Text>();
        so.FindProperty("urlInput")         .objectReferenceValue = urlInput;
        so.FindProperty("urlDownloadBtn")   .objectReferenceValue = urlDlBtn.GetComponent<Button>();
        so.FindProperty("titleInput")       .objectReferenceValue = titleInput;
        so.FindProperty("artistInput")      .objectReferenceValue = artistInput;
        so.FindProperty("bpmInput")         .objectReferenceValue = bpmInput;
        so.FindProperty("toggleNormal")     .objectReferenceValue = tNormal;
        so.FindProperty("toggleHard")       .objectReferenceValue = tHard;
        so.FindProperty("toggleExpert")     .objectReferenceValue = tExpert;
        so.FindProperty("toggleExpertPlus") .objectReferenceValue = tExpertPlus;
        so.FindProperty("generateButton")   .objectReferenceValue = generateBtn.GetComponent<Button>();
        so.FindProperty("backButton")       .objectReferenceValue = backBtn.GetComponent<Button>();
        so.FindProperty("progressGroup")    .objectReferenceValue = progressGO;
        so.FindProperty("statusText")       .objectReferenceValue = statusTxt.GetComponent<TMP_Text>();
        so.FindProperty("progressSlider")   .objectReferenceValue = sliderGO;
        so.FindProperty("beatSageUploader") .objectReferenceValue = uploader;
        so.FindProperty("nasPublisher")     .objectReferenceValue = publisher;
        so.ApplyModifiedPropertiesWithoutUndo();

        // Back button → Menu scene
        var backLoader = backBtn.AddComponent<VRBeats.LoadSceneButton>();
        InjectPrivate(backLoader, "button",    backBtn.GetComponent<Button>());
        InjectPrivate(backLoader, "sceneName", "Menu");
    }

    // ─────────────────────────────────────────────
    //  Helpers — UI factory
    // ─────────────────────────────────────────────

    private static GameObject CreateStyledButton(Transform parent, string label,
        Vector2 pos, Vector2 size, float fontSize)
    {
        var go = new GameObject(label);
        go.transform.SetParent(parent, false);
        SetRect(go, pos, size);

        var img = go.AddComponent<Image>();
        img.color = new Color(1f, 1f, 1f, 0.12f);

        var btn = go.AddComponent<Button>();
        btn.targetGraphic = img;
        var c = btn.colors;
        c.normalColor      = Color.white;
        c.highlightedColor = new Color(0.961f, 0.961f, 0.961f, 1f);
        c.pressedColor     = new Color(0.784f, 0.784f, 0.784f, 1f);
        c.selectedColor    = new Color(0.961f, 0.961f, 0.961f, 1f);
        c.fadeDuration     = 0.1f;
        btn.colors = c;

        var textGO = new GameObject("Text");
        textGO.transform.SetParent(go.transform, false);
        StretchFull(textGO);
        var tmp = textGO.AddComponent<TextMeshProUGUI>();
        tmp.text      = label;
        tmp.alignment = TextAlignmentOptions.Center;
        tmp.fontSize  = fontSize;
        tmp.color     = Color.white;

        return go;
    }

    private static GameObject CreateLabel(Transform parent, string name, string text,
        Vector2 pos, Vector2 size, float fontSize,
        Color? color = null, TextAlignmentOptions align = TextAlignmentOptions.MidlineLeft)
    {
        var go = new GameObject(name);
        go.transform.SetParent(parent, false);
        SetRect(go, pos, size);
        var tmp = go.AddComponent<TextMeshProUGUI>();
        tmp.text      = text;
        tmp.fontSize  = fontSize;
        tmp.color     = color ?? Color.white;
        tmp.alignment = align;
        return go;
    }

    private static void CreateDivider(Transform parent, string name, Vector2 pos, Vector2 size)
    {
        var go = new GameObject(name);
        go.transform.SetParent(parent, false);
        SetRect(go, pos, size);
        var img = go.AddComponent<Image>();
        img.color = new Color(1f, 1f, 1f, 0.18f);
        img.raycastTarget = false;
    }

    private static TMP_Dropdown CreateDropdown(Transform parent, string name, Vector2 pos, Vector2 size)
    {
        // Root
        var go = new GameObject(name);
        go.transform.SetParent(parent, false);
        SetRect(go, pos, size);
        var bgImg = go.AddComponent<Image>();
        bgImg.color = new Color(1f, 1f, 1f, 0.1f);

        var dd = go.AddComponent<TMP_Dropdown>();

        // Caption label
        var lbl = new GameObject("Label");
        lbl.transform.SetParent(go.transform, false);
        var lblRect = lbl.AddComponent<RectTransform>();
        lblRect.anchorMin       = Vector2.zero;
        lblRect.anchorMax       = Vector2.one;
        lblRect.offsetMin       = new Vector2(4f, 2f);
        lblRect.offsetMax       = new Vector2(-14f, -2f);
        var lblTmp = lbl.AddComponent<TextMeshProUGUI>();
        lblTmp.fontSize  = 4.5f;
        lblTmp.color     = Color.white;
        lblTmp.alignment = TextAlignmentOptions.MidlineLeft;
        dd.captionText   = lblTmp;

        // Arrow
        var arrow = new GameObject("Arrow");
        arrow.transform.SetParent(go.transform, false);
        SetRect(arrow, new Vector2(size.x * 0.5f - 6f, 0f), new Vector2(8f, 8f));
        var arrowTmp = arrow.AddComponent<TextMeshProUGUI>();
        arrowTmp.text      = "▼";
        arrowTmp.fontSize  = 4f;
        arrowTmp.color     = new Color(1f, 1f, 1f, 0.7f);
        arrowTmp.alignment = TextAlignmentOptions.Center;

        // ── Template (must be inactive) ──────────────────────
        var tmpl = new GameObject("Template");
        tmpl.transform.SetParent(go.transform, false);
        var tmplRect = tmpl.AddComponent<RectTransform>();
        tmplRect.anchorMin        = new Vector2(0f, 0f);
        tmplRect.anchorMax        = new Vector2(1f, 0f);
        tmplRect.pivot            = new Vector2(0.5f, 1f);
        tmplRect.anchoredPosition = new Vector2(0f, 2f);
        tmplRect.sizeDelta        = new Vector2(0f, 60f);
        var tmplImg = tmpl.AddComponent<Image>();
        tmplImg.color = new Color(0.15f, 0.15f, 0.15f, 0.97f);
        var scroll = tmpl.AddComponent<ScrollRect>();

        // Viewport
        var vp = new GameObject("Viewport");
        vp.transform.SetParent(tmpl.transform, false);
        var vpRect = vp.AddComponent<RectTransform>();
        vpRect.anchorMin = Vector2.zero;
        vpRect.anchorMax = Vector2.one;
        vpRect.offsetMin = vpRect.offsetMax = Vector2.zero;
        vpRect.pivot     = new Vector2(0f, 1f);
        vp.AddComponent<Image>().color = new Color(0f, 0f, 0f, 0.01f);
        vp.AddComponent<Mask>().showMaskGraphic = false;

        // Content
        var content = new GameObject("Content");
        content.transform.SetParent(vp.transform, false);
        var contentRect = content.AddComponent<RectTransform>();
        contentRect.anchorMin        = new Vector2(0f, 1f);
        contentRect.anchorMax        = new Vector2(1f, 1f);
        contentRect.pivot            = new Vector2(0.5f, 1f);
        contentRect.anchoredPosition = Vector2.zero;
        contentRect.sizeDelta        = new Vector2(0f, 28f);

        scroll.content  = contentRect;
        scroll.viewport = vpRect;
        scroll.horizontal        = false;
        scroll.movementType      = ScrollRect.MovementType.Clamped;
        scroll.scrollSensitivity = 10f;

        // Item (Toggle) — the row template
        var item = new GameObject("Item");
        item.transform.SetParent(content.transform, false);
        var itemRect = item.AddComponent<RectTransform>();
        itemRect.anchorMin        = new Vector2(0f, 0.5f);
        itemRect.anchorMax        = new Vector2(1f, 0.5f);
        itemRect.pivot            = new Vector2(0.5f, 0.5f);
        itemRect.sizeDelta        = new Vector2(0f, 9f);
        itemRect.anchoredPosition = Vector2.zero;

        var itemToggle = item.AddComponent<Toggle>();
        var itemBg = item.AddComponent<Image>();
        itemBg.color          = new Color(1f, 1f, 1f, 0f);
        itemToggle.targetGraphic = itemBg;
        var tc = itemToggle.colors;
        tc.highlightedColor = new Color(0.3f, 0.6f, 1f, 0.4f);
        tc.selectedColor    = new Color(0.3f, 0.6f, 1f, 0.4f);
        itemToggle.colors   = tc;

        // Item Label
        var itemLbl = new GameObject("Item Label");
        itemLbl.transform.SetParent(item.transform, false);
        var ilRect = itemLbl.AddComponent<RectTransform>();
        ilRect.anchorMin  = Vector2.zero;
        ilRect.anchorMax  = Vector2.one;
        ilRect.offsetMin  = new Vector2(4f, 1f);
        ilRect.offsetMax  = new Vector2(-4f, -1f);
        var itemTmp = itemLbl.AddComponent<TextMeshProUGUI>();
        itemTmp.fontSize  = 4.5f;
        itemTmp.color     = Color.white;
        itemTmp.alignment = TextAlignmentOptions.MidlineLeft;

        dd.itemText = itemTmp;
        dd.template = tmplRect;

        tmpl.SetActive(false);

        return dd;
    }

    private static TMP_InputField CreateInputField(Transform parent, string name,
        string placeholder, Vector2 pos, Vector2 size,
        TMP_InputField.ContentType contentType = TMP_InputField.ContentType.Standard)
    {
        var go = new GameObject(name);
        go.transform.SetParent(parent, false);
        SetRect(go, pos, size);

        var bg = go.AddComponent<Image>();
        bg.color = new Color(1f, 1f, 1f, 0.08f);

        var area = new GameObject("Text Area");
        area.transform.SetParent(go.transform, false);
        var ar = area.AddComponent<RectTransform>();
        ar.anchorMin = Vector2.zero;
        ar.anchorMax = Vector2.one;
        ar.offsetMin = new Vector2(3f, 1f);
        ar.offsetMax = new Vector2(-3f, -1f);
        area.AddComponent<RectMask2D>();

        var ph = new GameObject("Placeholder");
        ph.transform.SetParent(area.transform, false);
        StretchFull(ph);
        var phTmp = ph.AddComponent<TextMeshProUGUI>();
        phTmp.text      = placeholder;
        phTmp.fontSize  = 4.5f;
        phTmp.color     = new Color(1f, 1f, 1f, 0.3f);
        phTmp.alignment = TextAlignmentOptions.MidlineLeft;

        var txt = new GameObject("Text");
        txt.transform.SetParent(area.transform, false);
        StretchFull(txt);
        var txtTmp = txt.AddComponent<TextMeshProUGUI>();
        txtTmp.fontSize  = 4.5f;
        txtTmp.color     = Color.white;
        txtTmp.alignment = TextAlignmentOptions.MidlineLeft;

        var field = go.AddComponent<TMP_InputField>();
        field.textComponent = txtTmp;
        field.placeholder   = phTmp;
        field.textViewport  = ar;
        field.contentType   = contentType;

        return field;
    }

    private static Toggle CreateToggle(Transform parent, string name, string label,
        Vector2 pos, ToggleGroup group, bool isOn)
    {
        var go = new GameObject(name);
        go.transform.SetParent(parent, false);
        SetRect(go, pos, new Vector2(36f, 8f));

        var img = go.AddComponent<Image>();
        img.color = new Color(1f, 1f, 1f, 0.1f);

        var toggle = go.AddComponent<Toggle>();
        toggle.targetGraphic = img;
        toggle.group = group;
        toggle.isOn  = isOn;
        var tc = toggle.colors;
        tc.normalColor    = new Color(1f, 1f, 1f, 0.1f);
        tc.highlightedColor = new Color(0.4f, 0.7f, 1f, 0.5f);
        tc.pressedColor   = new Color(0.2f, 0.5f, 0.9f, 0.8f);
        tc.selectedColor  = new Color(0.3f, 0.6f, 1f, 0.6f);
        toggle.colors = tc;

        var lbl = new GameObject("Label");
        lbl.transform.SetParent(go.transform, false);
        StretchFull(lbl);
        var tmp = lbl.AddComponent<TextMeshProUGUI>();
        tmp.text      = label;
        tmp.fontSize  = 4f;
        tmp.color     = Color.white;
        tmp.alignment = TextAlignmentOptions.Center;

        return toggle;
    }

    private static Slider CreateSlider(Transform parent, string name, Vector2 pos, Vector2 size)
    {
        var go = new GameObject(name);
        go.transform.SetParent(parent, false);
        SetRect(go, pos, size);

        var bg = new GameObject("Background");
        bg.transform.SetParent(go.transform, false);
        StretchFull(bg);
        var bgImg = bg.AddComponent<Image>();
        bgImg.color = new Color(1f, 1f, 1f, 0.15f);

        var fillArea = new GameObject("Fill Area");
        fillArea.transform.SetParent(go.transform, false);
        StretchFull(fillArea);

        var fill = new GameObject("Fill");
        fill.transform.SetParent(fillArea.transform, false);
        StretchFull(fill);
        var fillImg = fill.AddComponent<Image>();
        fillImg.color = new Color(0.3f, 0.8f, 0.3f, 0.9f);

        var slider = go.AddComponent<Slider>();
        slider.fillRect     = fill.GetComponent<RectTransform>();
        slider.minValue     = 0f;
        slider.maxValue     = 1f;
        slider.value        = 0f;
        slider.interactable = false;

        return slider;
    }

    // ─────────────────────────────────────────────
    //  Utils
    // ─────────────────────────────────────────────

    private static void SetRect(GameObject go, Vector2 pos, Vector2 size)
    {
        var r = go.GetComponent<RectTransform>();
        if (r == null) r = go.AddComponent<RectTransform>();
        r.anchorMin        = new Vector2(0.5f, 0.5f);
        r.anchorMax        = new Vector2(0.5f, 0.5f);
        r.pivot            = new Vector2(0.5f, 0.5f);
        r.anchoredPosition = pos;
        r.sizeDelta        = size;
    }

    private static void StretchFull(GameObject go)
    {
        var r = go.GetComponent<RectTransform>();
        if (r == null) r = go.AddComponent<RectTransform>();
        r.anchorMin = Vector2.zero;
        r.anchorMax = Vector2.one;
        r.offsetMin = r.offsetMax = Vector2.zero;
    }

    private static void InjectPrivate(object target, string fieldName, object value)
    {
        target.GetType()
              .GetField(fieldName,
                  System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance)
              ?.SetValue(target, value);
    }
}