// ─────────────────────────────────────────────────────────────────────────────
//  WLEquipUi.cs — FR 장비 시스템 더미 UI (#821 · PD 「더미 UI 라도 좋으니 실제 기능 동작」)
//
//  코드로 만드는 uGUI(프리팹 0 · 스프라이트 0 · 글자만). 자기 Canvas(Overlay · 1080×1920 기준)를 들고
//  하단 메뉴 DummyMenuButton(menuId = weapon/upgrade · WLEquipSettings.openMenuIds)에서 연다.
//  화면: 장착 슬롯 6 → 보유 목록(스크롤) → 선택 아이템 상세 + 버튼(장착/해제 · 강화 · 전부 강화 · 합성 · 전부 합성 · 강등 · 테스트 획득 · 초기화).
//  정식 UI 는 PD 기획 후 교체 — 로직(WLInventory)은 그대로 쓴다.
// ─────────────────────────────────────────────────────────────────────────────

using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

namespace WL.Equip
{
    public class WLEquipUi : MonoBehaviour
    {
        public static WLEquipUi Instance { get; private set; }
        public static bool IsOpen { get { return (Instance != null && Instance.gameObject.activeSelf) || WLEquipGui.IsOpen; } }
        public static int Opens { get; private set; }

        const int UILayer = 5;

        WLEquipSettings _cfg;
        TMP_FontAsset _font;
        Canvas _canvas;
        TextMeshProUGUI _title, _info, _stats, _boxInfo, _detail, _message, _gains;
        readonly Button[] _slotBtn = new Button[6];
        readonly TextMeshProUGUI[] _slotLabel = new TextMeshProUGUI[6];
        RectTransform _listContent;
        ScrollRect _scroll;
        readonly List<Button> _rows = new List<Button>();
        readonly List<TextMeshProUGUI> _rowLabels = new List<TextMeshProUGUI>();
        readonly List<Image> _rowBg = new List<Image>();
        readonly List<int> _rowIds = new List<int>();
        Button _equipBtn, _lvBtn, _lvAllBtn, _composeBtn, _composeAllBtn, _downBtn, _cheatBtn, _resetBtn, _boxBtn, _box10Btn, _keyBtn;
        TextMeshProUGUI _equipLabel;
        int _selectedId = -1;

        // ── 진입점 ───────────────────────────────────────────────────────
        /// <summary>DummyMenuButton 1줄 훅 — 이 menuId 가 장비 메뉴면 열고 true.</summary>
        public static bool TryOpen(string menuId)
        {
            var cfg = WLEquipSettings.Instance;
            if (cfg == null || cfg.enabled_ == 0 || !cfg.IsOpenMenuId(menuId)) return false;
            Open();
            return true;
        }

        /// <summary>
        /// 🔴 하단 「무기」 버튼(HUD_BottomMenu.prefab)에는 힘민지 원본 `NewGameUI.OnClick_Button`(원본 EquipmentUI 열기)이
        /// 프리팹에 연결돼 있고 persistent 호출이 런타임 리스너보다 먼저 돈다 → 원본 메뉴가 초기화 없이 켜지면
        /// `FollowTextEnd` 가 매 프레임 NRE 를 낸다(2026-10-08 실측 · 500건). 장비 화면을 열 때 그 메뉴가 켜져 있으면 끈다.
        /// </summary>
        public static bool CloseLegacyEquipmentUi()
        {
            var cfg = WLEquipSettings.Instance;
            if (cfg == null || cfg.closeLegacyEquipmentUi == 0) return false;
            try
            {
                var ng = NewGameUI.Ins;
                if (ng != null && ng.m_EquipmentUI != null && ng.m_EquipmentUI.gameObject.activeSelf)
                {
                    ng.m_EquipmentUI.gameObject.SetActive(false);
                    return true;
                }
            }
            catch (System.Exception ex) { Debug.LogWarning("[WL-821] 원본 EquipmentUI 닫기 실패 — " + ex.Message); }
            return false;
        }

        public static WLEquipUi Open()
        {
            var cfg = WLEquipSettings.Instance;
            if (cfg == null || cfg.enabled_ == 0) return null;
            CloseLegacyEquipmentUi();
            if (cfg.useGuiV2 != 0) { WLEquipGui.Open(); return null; }   // #824 XP Hero 레이아웃 GUI
            if (Instance == null)
            {
                var go = new GameObject("WL_EquipUi", typeof(RectTransform));
                go.layer = UILayer;
                DontDestroyOnLoad(go);
                Instance = go.AddComponent<WLEquipUi>();
                Instance._cfg = cfg;
                Instance.Build();
            }
            Instance.gameObject.SetActive(true);
            Opens++;
            WLInventory.EnsureLoaded();
            Instance.Refresh();
            return Instance;
        }

        public static void Close() { if (Instance != null) Instance.gameObject.SetActive(false); }

        void OnEnable() { WLInventory.Changed += Refresh; }
        void OnDisable() { WLInventory.Changed -= Refresh; }
        void OnDestroy() { if (Instance == this) Instance = null; }

        // ── 조립 ─────────────────────────────────────────────────────────
        void Build()
        {
            _font = ResolveFont();
            if (EventSystem.current == null)
            {
                var es = new GameObject("WL_EventSystem(Equip)", typeof(EventSystem), typeof(StandaloneInputModule));
                DontDestroyOnLoad(es);
            }

            _canvas = gameObject.AddComponent<Canvas>();
            _canvas.renderMode = RenderMode.ScreenSpaceOverlay;
            _canvas.sortingOrder = _cfg.uiSortingOrder;
            var scaler = gameObject.AddComponent<CanvasScaler>();
            scaler.uiScaleMode = CanvasScaler.ScaleMode.ScaleWithScreenSize;
            scaler.referenceResolution = new Vector2(1080f, 1920f);
            scaler.screenMatchMode = CanvasScaler.ScreenMatchMode.MatchWidthOrHeight;
            scaler.matchWidthOrHeight = 0.5f;
            gameObject.AddComponent<GraphicRaycaster>();

            var root = (RectTransform)transform;
            var dim = NewImage(root, "Dim", _cfg.dimColor); Stretch(dim.rectTransform); dim.raycastTarget = true;

            var panel = NewImage(root, "Panel", _cfg.panelColor);
            Stretch(panel.rectTransform);
            float m = _cfg.panelMarginPx;
            panel.rectTransform.offsetMin = new Vector2(m, m); panel.rectTransform.offsetMax = new Vector2(-m, -m);
            var vl = panel.gameObject.AddComponent<VerticalLayoutGroup>();
            vl.padding = new RectOffset(16, 16, 16, 16); vl.spacing = 10f;
            vl.childControlWidth = true; vl.childControlHeight = true; vl.childForceExpandWidth = true; vl.childForceExpandHeight = false;
            var prt = panel.rectTransform;

            // 제목 + 닫기
            var titleRow = NewRow(prt, "TitleRow", 70f);
            _title = NewText(titleRow, "Title", _cfg.titleFontPx, TextAlignmentOptions.MidlineLeft); Flex(_title.rectTransform, 1f);
            NewButton(titleRow, "닫기", 160f, Close);

            _info = NewText(prt, "Info", _cfg.smallFontPx, TextAlignmentOptions.MidlineLeft); Pref(_info.rectTransform, 44f);
            _stats = NewText(prt, "Stats", _cfg.smallFontPx, TextAlignmentOptions.MidlineLeft); Pref(_stats.rectTransform, 44f);
            _stats.color = new Color(1f, 0.92f, 0.6f, 1f);

            // 장착 슬롯 2×3
            for (int r = 0; r < 2; r++)
            {
                var row = NewRow(prt, "SlotRow" + r, _cfg.slotHeightPx);
                for (int c = 0; c < 3; c++)
                {
                    int slotIndex = r * 3 + c;
                    _slotBtn[slotIndex] = NewButton(row, "", 0f, () => OnSlotClick(slotIndex));
                    Flex((RectTransform)_slotBtn[slotIndex].transform, 1f);
                    _slotLabel[slotIndex] = _slotBtn[slotIndex].GetComponentInChildren<TextMeshProUGUI>();
                    _slotLabel[slotIndex].fontSize = _cfg.smallFontPx;
                }
            }

            // 장비 상자(PD 2026-10-09 — 10회마다 에픽 확정 · 50회 S급 천장 · 열쇠 가격은 보류)
            _boxInfo = NewText(prt, "BoxInfo", _cfg.smallFontPx, TextAlignmentOptions.MidlineLeft); Pref(_boxInfo.rectTransform, 44f);
            var boxRow = NewRow(prt, "BoxRow", _cfg.buttonHeightPx);
            var boxDef = WLEquipGacha.Box(_cfg.defaultBoxId);
            int keyCost = boxDef != null ? boxDef.keyCost : 1;
            _boxBtn = NewButton(boxRow, "상자 1회 (열쇠 " + keyCost + ")", 0f, () => Act(() => WLEquipGacha.Draw(_cfg.defaultBoxId, 1) > 0)); Flex((RectTransform)_boxBtn.transform, 1f);
            _box10Btn = NewButton(boxRow, "상자 10회 (열쇠 " + (keyCost * 10) + ")", 0f, () => Act(() => WLEquipGacha.Draw(_cfg.defaultBoxId, 10) > 0)); Flex((RectTransform)_box10Btn.transform, 1f);
            _keyBtn = NewButton(boxRow, "열쇠 +" + _cfg.cheatKeyGrant, 0f, () => Act(() => { WLInventory.AddKeys(_cfg.cheatKeyGrant); WLInventory.Commit("열쇠 +" + _cfg.cheatKeyGrant); return true; })); Flex((RectTransform)_keyBtn.transform, 1f);
            _keyBtn.gameObject.SetActive(_cfg.cheatGrantEnabled != 0);

            // 목록(스크롤)
            var listGo = new GameObject("List", typeof(RectTransform), typeof(Image), typeof(ScrollRect));
            listGo.layer = UILayer; listGo.transform.SetParent(prt, false);
            var listImg = listGo.GetComponent<Image>(); listImg.color = _cfg.boxColor;
            var le = listGo.AddComponent<LayoutElement>(); le.flexibleHeight = 1f; le.minHeight = 200f;
            _scroll = listGo.GetComponent<ScrollRect>();
            var viewport = new GameObject("Viewport", typeof(RectTransform), typeof(Image), typeof(RectMask2D));
            viewport.layer = UILayer; viewport.transform.SetParent(listGo.transform, false);
            var vrt = (RectTransform)viewport.transform; Stretch(vrt);
            viewport.GetComponent<Image>().color = new Color(0f, 0f, 0f, 0.01f);
            var content = new GameObject("Content", typeof(RectTransform), typeof(VerticalLayoutGroup), typeof(ContentSizeFitter));
            content.layer = UILayer; content.transform.SetParent(viewport.transform, false);
            _listContent = (RectTransform)content.transform;
            _listContent.anchorMin = new Vector2(0f, 1f); _listContent.anchorMax = new Vector2(1f, 1f); _listContent.pivot = new Vector2(0.5f, 1f);
            _listContent.offsetMin = Vector2.zero; _listContent.offsetMax = Vector2.zero;
            var cvl = content.GetComponent<VerticalLayoutGroup>();
            cvl.padding = new RectOffset(8, 8, 8, 8); cvl.spacing = 6f;
            cvl.childControlWidth = true; cvl.childControlHeight = true; cvl.childForceExpandWidth = true; cvl.childForceExpandHeight = false;
            content.GetComponent<ContentSizeFitter>().verticalFit = ContentSizeFitter.FitMode.PreferredSize;
            _scroll.content = _listContent; _scroll.viewport = vrt; _scroll.horizontal = false; _scroll.vertical = true;
            _scroll.movementType = ScrollRect.MovementType.Clamped; _scroll.scrollSensitivity = 40f;

            // 상세 + 버튼
            var detailBox = NewImage(prt, "Detail", _cfg.boxColor); Pref(detailBox.rectTransform, _cfg.detailHeightPx);
            var dvl = detailBox.gameObject.AddComponent<VerticalLayoutGroup>();
            dvl.padding = new RectOffset(12, 12, 10, 10); dvl.spacing = 8f;
            dvl.childControlWidth = true; dvl.childControlHeight = true; dvl.childForceExpandWidth = true; dvl.childForceExpandHeight = false;
            _detail = NewText(detailBox.rectTransform, "Text", _cfg.smallFontPx, TextAlignmentOptions.TopLeft); Flex(_detail.rectTransform, 1f);
            var b1 = NewRow(detailBox.rectTransform, "Buttons1", _cfg.buttonHeightPx);
            _equipBtn = NewButton(b1, "장착", 0f, OnEquipToggle); Flex((RectTransform)_equipBtn.transform, 1f);
            _equipLabel = _equipBtn.GetComponentInChildren<TextMeshProUGUI>();
            _lvBtn = NewButton(b1, "강화 +1", 0f, () => Act(() => WLInventory.ItemLevelUp(_selectedId, false))); Flex((RectTransform)_lvBtn.transform, 1f);
            _lvAllBtn = NewButton(b1, "전부 강화", 0f, () => Act(() => WLInventory.ItemLevelUp(_selectedId, true))); Flex((RectTransform)_lvAllBtn.transform, 1f);
            _composeBtn = NewButton(b1, "합성", 0f, () => Act(() => WLInventory.ComposeOne(_selectedId))); Flex((RectTransform)_composeBtn.transform, 1f);
            var b2 = NewRow(detailBox.rectTransform, "Buttons2", _cfg.buttonHeightPx);
            _composeAllBtn = NewButton(b2, "전부 합성", 0f, () => Act(() => WLInventory.ComposeAll() > 0)); Flex((RectTransform)_composeAllBtn.transform, 1f);
            _downBtn = NewButton(b2, "강등", 0f, () => Act(() => WLInventory.Downgrade(_selectedId))); Flex((RectTransform)_downBtn.transform, 1f);
            _cheatBtn = NewButton(b2, "테스트 획득", 0f, OnCheat); Flex((RectTransform)_cheatBtn.transform, 1f);
            _cheatBtn.gameObject.SetActive(_cfg.cheatGrantEnabled != 0);
            _resetBtn = NewButton(b2, "초기화", 0f, () => { WLInventory.ResetAll(); _selectedId = -1; Refresh(); }); Flex((RectTransform)_resetBtn.transform, 1f);

            _message = NewText(prt, "Message", _cfg.smallFontPx, TextAlignmentOptions.MidlineLeft); Pref(_message.rectTransform, 40f);
            _gains = NewText(prt, "Gains", _cfg.smallFontPx, TextAlignmentOptions.MidlineLeft); Pref(_gains.rectTransform, 40f);
            _gains.color = new Color(0.8f, 0.9f, 0.6f, 1f);
        }

        TMP_FontAsset ResolveFont() { return ResolveKoreanFont(_cfg); }

        /// <summary>한글 글리프('장'·'비')를 가진 TMP 폰트를 고른다 — 아무 라벨의 폰트를 빌리면 FI 데모 폰트(한글 없음)가 걸려 □ 로 나온다(2026-10-08 캡처 실측).</summary>
        public static TMP_FontAsset ResolveKoreanFont(WLEquipSettings cfg)
        {
            TMP_FontAsset f = null;
            if (cfg != null && !string.IsNullOrEmpty(cfg.fontPath)) f = WL.Island.WLIslandAssets.Font(cfg.fontPath);
            if (f != null && HasKorean(f)) return f;
            var labels = FindObjectsByType<TextMeshProUGUI>(FindObjectsInactive.Include, FindObjectsSortMode.None);
            TMP_FontAsset fallback = null;
            for (int i = 0; i < labels.Length; i++)
            {
                var lf = labels[i] != null ? labels[i].font : null;
                if (lf == null) continue;
                if (fallback == null) fallback = lf;
                if (HasKorean(lf)) return lf;
            }
            return f != null ? f : fallback;
        }

        static bool HasKorean(TMP_FontAsset f)
        {
            try { return f.HasCharacter('장', true, true) && f.HasCharacter('비', true, true); }
            catch { return false; }
        }

        // ── 갱신 ─────────────────────────────────────────────────────────
        public void Refresh()
        {
            if (!gameObject.activeSelf) return;
            if (!WLInventory.EnsureLoaded()) { _title.text = "장비 — 표 로드 실패"; _detail.text = WLEquipTables.LastLog; return; }
            _title.text = "장비 (등급 7단계 · 더미 UI)  보유 " + WLInventory.ItemCount;

            var sb = new System.Text.StringBuilder();
            sb.Append("코인 ").Append(WLInventory.GetGold()).Append("   강화석:");
            if (_cfg.clearStoneItemIds != null)
                for (int i = 0; i < _cfg.clearStoneItemIds.Length; i++)
                {
                    var sj = WLEquipTables.FindItemJson(_cfg.clearStoneItemIds[i]);
                    sb.Append(' ').Append(sj != null ? sj.Item_name.Replace(" 강화석", "") : _cfg.clearStoneItemIds[i].ToString()).Append(' ').Append(WLInventory.GetItemCountByIndex(_cfg.clearStoneItemIds[i]));
                }
            _info.text = sb.ToString();
            _stats.text = WLEquipStats.StatusLine();
            _boxInfo.text = WLEquipGacha.InfoLine(_cfg.defaultBoxId);
            var boxDef = WLEquipGacha.Box(_cfg.defaultBoxId);
            int keyCost = boxDef != null ? boxDef.keyCost : 1;
            int keys = WLInventory.GetKeys();
            _boxBtn.interactable = boxDef != null && keys >= keyCost;
            _box10Btn.interactable = boxDef != null && keys >= keyCost * 10;
            SetButtonColor(_boxBtn, _boxBtn.interactable ? _cfg.buttonColor : _cfg.buttonDisabledColor);
            SetButtonColor(_box10Btn, _box10Btn.interactable ? _cfg.buttonColor : _cfg.buttonDisabledColor);

            for (int i = 0; i < 6; i++)
            {
                var slot = (eFREquipmentType)(i + 1);
                var it = WLInventory.EquippedInSlot(slot);
                _slotLabel[i].text = WLEquipTables.SlotName(slot) + "\n" + (it != null
                    ? it.itemJson.Item_name + " [" + WLEquipGrades.Label(it.itemJson, true) + "] Lv" + it.rawItem.level
                    : "(비어 있음)");
                SetButtonColor(_slotBtn[i], it != null && it.rawItem._id == _selectedId ? _cfg.selectedRowColor : (it != null ? _cfg.equippedRowColor : _cfg.buttonDisabledColor));
            }

            var items = WLInventory.SortedItems();
            int n = Mathf.Min(items.Count, _cfg.maxListRows);
            while (_rows.Count < n) AddRow();
            for (int i = 0; i < _rows.Count; i++)
            {
                bool on = i < n;
                _rows[i].gameObject.SetActive(on);
                if (!on) continue;
                var it = items[i];
                _rowIds[i] = it.rawItem._id;
                _rowLabels[i].text = WLInventory.RowText(it);
                _rowBg[i].color = it.rawItem._id == _selectedId ? _cfg.selectedRowColor : (WLInventory.IsEquipped(it.rawItem._id) ? _cfg.equippedRowColor : _cfg.rowColor);
            }
            if (_selectedId >= 0 && WLInventory.FindItem(_selectedId) == null) _selectedId = -1;

            var sel = WLInventory.FindItem(_selectedId);
            _detail.text = sel != null ? WLInventory.Describe(sel)
                : "목록에서 아이템을 고르세요.\n등급: " + WLEquipGrades.Legend(true) + "\n상자 확률(제안값): " + WLEquipGacha.RateText(_cfg.defaultBoxId) +
                  "\n던전 클리어 때 FR 드랍표(그룹 " + _cfg.clearDropGroupId + ")로 장비 1개 + 강화석이 들어옵니다.";
            bool isEq = sel != null && sel.itemJson.IsEquipment;
            bool equipped = sel != null && WLInventory.IsEquipped(sel.rawItem._id);
            _equipLabel.text = equipped ? "해제" : "장착";
            _equipBtn.interactable = isEq;
            _lvBtn.interactable = isEq && WLInventory.NextLevelCost(sel) != null;
            _lvAllBtn.interactable = _lvBtn.interactable;
            _composeBtn.interactable = isEq && WLInventory.PlanCompose(sel) != null;
            _downBtn.interactable = isEq && WLEquipTables.FindComposeByResult(sel.itemJson.ItemGrade, sel.itemJson.GradeLv) != null;
            SetButtonColor(_equipBtn, _equipBtn.interactable ? _cfg.buttonColor : _cfg.buttonDisabledColor);
            SetButtonColor(_lvBtn, _lvBtn.interactable ? _cfg.buttonColor : _cfg.buttonDisabledColor);
            SetButtonColor(_lvAllBtn, _lvAllBtn.interactable ? _cfg.buttonColor : _cfg.buttonDisabledColor);
            SetButtonColor(_composeBtn, _composeBtn.interactable ? _cfg.buttonColor : _cfg.buttonDisabledColor);
            SetButtonColor(_downBtn, _downBtn.interactable ? _cfg.buttonColor : _cfg.buttonDisabledColor);

            _message.text = WLInventory.LastMessage;
            _gains.text = WLInventory.RecentGains.Count > 0 ? "최근 획득: " + string.Join(" · ", WLInventory.RecentGains.GetRange(0, Mathf.Min(4, WLInventory.RecentGains.Count))) : "";
        }

        void AddRow()
        {
            int i = _rows.Count;
            var b = NewButton(_listContent, "", _cfg.rowHeightPx, () => OnRowClick(i));
            var lbl = b.GetComponentInChildren<TextMeshProUGUI>();
            lbl.alignment = TextAlignmentOptions.MidlineLeft; lbl.fontSize = _cfg.bodyFontPx;
            lbl.rectTransform.offsetMin = new Vector2(14f, 0f);
            _rows.Add(b); _rowLabels.Add(lbl); _rowBg.Add(b.GetComponent<Image>()); _rowIds.Add(-1);
            _rowBg[i].color = _cfg.rowColor;
        }

        // ── 조작 ─────────────────────────────────────────────────────────
        void OnRowClick(int i) { if (i < _rowIds.Count) { _selectedId = _rowIds[i]; Refresh(); } }
        void OnSlotClick(int slotIndex)
        {
            var it = WLInventory.EquippedInSlot((eFREquipmentType)(slotIndex + 1));
            if (it != null) { _selectedId = it.rawItem._id; Refresh(); }
        }
        void OnEquipToggle()
        {
            Act(() => WLInventory.IsEquipped(_selectedId) ? WLInventory.Unequip(_selectedId) : WLInventory.Equip(_selectedId));
        }
        void OnCheat()
        {
            WLEquipDrops.Grant(_cfg.cheatGrantGroupId, _cfg.cheatGrantRolls, _cfg.clearStoneItemIds, _cfg.clearStoneCountEach, 0);
            Refresh();
        }
        void Act(System.Func<bool> f)
        {
            try { f(); } catch (System.Exception ex) { Debug.LogError("[WL-821] UI 동작 예외 — " + ex); }
            Refresh();
        }

        // ── uGUI 헬퍼 ───────────────────────────────────────────────────
        static void Stretch(RectTransform rt)
        {
            rt.anchorMin = Vector2.zero; rt.anchorMax = Vector2.one; rt.offsetMin = Vector2.zero; rt.offsetMax = Vector2.zero; rt.pivot = new Vector2(0.5f, 0.5f);
        }
        static void Pref(RectTransform rt, float h) { var le = rt.gameObject.GetComponent<LayoutElement>() ?? rt.gameObject.AddComponent<LayoutElement>(); le.preferredHeight = h; le.minHeight = h; }
        static void Flex(RectTransform rt, float w) { var le = rt.gameObject.GetComponent<LayoutElement>() ?? rt.gameObject.AddComponent<LayoutElement>(); le.flexibleWidth = w; le.flexibleHeight = w; }

        Image NewImage(RectTransform parent, string name, Color c)
        {
            var go = new GameObject(name, typeof(RectTransform), typeof(Image));
            go.layer = UILayer; go.transform.SetParent(parent, false);
            var img = go.GetComponent<Image>(); img.color = c; img.raycastTarget = false;
            return img;
        }

        RectTransform NewRow(RectTransform parent, string name, float h)
        {
            var go = new GameObject(name, typeof(RectTransform), typeof(HorizontalLayoutGroup));
            go.layer = UILayer; go.transform.SetParent(parent, false);
            var hl = go.GetComponent<HorizontalLayoutGroup>();
            hl.spacing = 8f; hl.childControlWidth = true; hl.childControlHeight = true; hl.childForceExpandWidth = false; hl.childForceExpandHeight = true;
            var rt = (RectTransform)go.transform; Pref(rt, h);
            return rt;
        }

        TextMeshProUGUI NewText(RectTransform parent, string name, float size, TextAlignmentOptions align)
        {
            var go = new GameObject(name, typeof(RectTransform), typeof(TextMeshProUGUI));
            go.layer = UILayer; go.transform.SetParent(parent, false);
            var t = go.GetComponent<TextMeshProUGUI>();
            if (_font != null) t.font = _font;
            t.fontSize = size; t.alignment = align; t.raycastTarget = false; t.color = Color.white;
            t.overflowMode = TextOverflowModes.Truncate;
            return t;
        }

        Button NewButton(RectTransform parent, string label, float width, UnityEngine.Events.UnityAction onClick)
        {
            var go = new GameObject("btn_" + label, typeof(RectTransform), typeof(Image), typeof(Button));
            go.layer = UILayer; go.transform.SetParent(parent, false);
            var img = go.GetComponent<Image>(); img.color = _cfg.buttonColor; img.raycastTarget = true;
            var b = go.GetComponent<Button>(); b.targetGraphic = img; b.onClick.AddListener(onClick);
            var le = go.AddComponent<LayoutElement>();
            if (width > 0f) { le.preferredWidth = width; le.minWidth = width; }
            le.preferredHeight = _cfg.buttonHeightPx;
            var t = NewText((RectTransform)go.transform, "Label", _cfg.bodyFontPx, TextAlignmentOptions.Center);
            t.text = label; Stretch(t.rectTransform);
            return b;
        }

        static void SetButtonColor(Button b, Color c) { var img = b.GetComponent<Image>(); if (img != null) img.color = c; }

        // ── 런처 ─────────────────────────────────────────────────────────
        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.AfterSceneLoad)]
        static void Boot()
        {
            var cfg = WLEquipSettings.Instance;
            if (cfg == null || cfg.enabled_ == 0 || cfg.launcherEnabled == 0) return;
            WLEquipLauncher.Ensure(cfg);
        }
    }

    /// <summary>
    /// 인게임(섬·던전)에서 항상 보이는 「장비」 버튼 — 하단 5메뉴는 섬에서 비활성이라(실측 2026-10-08) 별도 진입점이 필요하다.
    /// 자기 Canvas(Overlay) 1장 · 버튼 1개 · 0.5 s 마다 보일 조건(활성 씬 = launcherSceneName · 서버 데이터 있음 · 장비 화면 닫힘)을 다시 본다.
    /// </summary>
    public class WLEquipLauncher : MonoBehaviour
    {
        public static WLEquipLauncher Instance { get; private set; }
        public static int Clicks { get; private set; }
        public bool Visible { get { return _btn != null && _btn.gameObject.activeSelf; } }

        WLEquipSettings _cfg;
        Button _btn;
        float _timer;

        public static WLEquipLauncher Ensure(WLEquipSettings cfg)
        {
            if (Instance != null) return Instance;
            var go = new GameObject("WL_EquipLauncher", typeof(RectTransform));
            go.layer = 5;
            DontDestroyOnLoad(go);
            Instance = go.AddComponent<WLEquipLauncher>();
            Instance._cfg = cfg;
            Instance.Build();
            return Instance;
        }

        void Build()
        {
            var canvas = gameObject.AddComponent<Canvas>();
            canvas.renderMode = RenderMode.ScreenSpaceOverlay;
            canvas.sortingOrder = _cfg.uiSortingOrder - 1;
            var scaler = gameObject.AddComponent<CanvasScaler>();
            scaler.uiScaleMode = CanvasScaler.ScaleMode.ScaleWithScreenSize;
            scaler.referenceResolution = new Vector2(1080f, 1920f);
            scaler.screenMatchMode = CanvasScaler.ScreenMatchMode.MatchWidthOrHeight;
            scaler.matchWidthOrHeight = 0.5f;
            gameObject.AddComponent<GraphicRaycaster>();

            var bgo = new GameObject("btn_equip", typeof(RectTransform), typeof(Image), typeof(Button));
            bgo.layer = 5; bgo.transform.SetParent(transform, false);
            var rt = (RectTransform)bgo.transform;
            rt.anchorMin = rt.anchorMax = new Vector2(1f, 0f); rt.pivot = new Vector2(1f, 0f);
            rt.sizeDelta = _cfg.launcherSizePx;
            rt.anchoredPosition = new Vector2(-_cfg.launcherOffsetPx.x, _cfg.launcherOffsetPx.y);
            var img = bgo.GetComponent<Image>(); img.color = _cfg.buttonColor;
            _btn = bgo.GetComponent<Button>(); _btn.targetGraphic = img;
            _btn.onClick.AddListener(() => { Clicks++; WLEquipUi.Open(); });

            var tgo = new GameObject("Label", typeof(RectTransform), typeof(TextMeshProUGUI));
            tgo.layer = 5; tgo.transform.SetParent(bgo.transform, false);
            var t = tgo.GetComponent<TextMeshProUGUI>();
            var trt = t.rectTransform; trt.anchorMin = Vector2.zero; trt.anchorMax = Vector2.one; trt.offsetMin = trt.offsetMax = Vector2.zero;
            t.text = _cfg.launcherLabel; t.fontSize = _cfg.bodyFontPx; t.alignment = TextAlignmentOptions.Center; t.raycastTarget = false;
            _label = t;
            _btn.gameObject.SetActive(false);
        }

        void Update()
        {
            _timer += Time.unscaledDeltaTime;
            if (_timer < 0.5f) return;
            _timer = 0f;
            WLEquipStats.EnforceBaseAttackTick();        // PD 「기본 공격력 5」 — Reset 이 돌 때마다 원본 공식으로 돌아오므로 0.5 s 마다 다시 맞춘다
            bool show = false;
            try
            {
                show = _cfg != null && _cfg.enabled_ != 0 && _cfg.launcherEnabled != 0 && !WLEquipUi.IsOpen &&
                       UnityEngine.SceneManagement.SceneManager.GetActiveScene().name == _cfg.launcherSceneName &&
                       ServerInfo.Ins != null && ServerInfo.Ins.m_ServerData != null;
            }
            catch { show = false; }
            if (_btn != null && _btn.gameObject.activeSelf != show)
            {
                // 폰트는 처음 보일 때(인게임) 고른다 — 타이틀 시점에 고르면 인게임 한글 폰트(Font SDF)가 아직 없다(2026-10-08 실측 「장□」).
                if (show && !_fontResolved)
                {
                    _fontResolved = true;
                    var kf = WLEquipUi.ResolveKoreanFont(_cfg);
                    if (kf != null && _label != null) _label.font = kf;
                }
                _btn.gameObject.SetActive(show);
            }
        }

        TextMeshProUGUI _label;
        bool _fontResolved;
        public string FontName { get { return _label != null && _label.font != null ? _label.font.name : "null"; } }
    }
}