using System.Collections.Generic;
using UnityEditor;
using UnityEngine;
using UnityEngine.UI;
using TMPro;
using BaseGames.UI;
using BaseGames.UI.Theme;
using BaseGames.Core.Events;
using BaseGames.Localization;
using BaseGames.Editor.Localization;

namespace BaseGames.Editor.UI
{
    /// <summary>
    /// 护符面板脚手架：生成 <c>UI_CharmPanel</c> 预制件（CharmEquipPanel + 已装备区 + 收藏目录 + 凹槽进度条 + 卡片模板）。
    /// 数据来源运行期 ServiceLocator → IEquipmentService（EquipmentManager）；变更经 EVT_EquipmentChanged 反应式重建。
    ///
    /// 该面板既可 standalone 打开（PanelId.CharmPanel），也由 InventoryHub 内嵌为「护符」Tab（脚手架内嵌时中和 Canvas 链 + 隐藏 chrome）。
    /// 美术 → 改 UI_CharmPanel / 卡片样式；策划 → 改护符数据(CharmSO/CharmCatalogSO)。
    /// 菜单：BaseGames/UI/控件库/生成护符面板（预制件）
    /// </summary>
    public static class UICharmScaffold
    {
        private const string PrefabDir  = "Assets/_Game/Prefabs/UI";
        private const string ThemePath  = "Assets/_Game/Data/UI/Themes/UI_Theme_Default.asset";
        private const string PrefabName = "UI_CharmPanel";

        [MenuItem("BaseGames/UI/控件库/生成护符面板（预制件）")]
        public static void GeneratePrefab()
        {
            EnsureFolder(PrefabDir);
            var report = new List<string>();

            var theme = AssetDatabase.LoadAssetAtPath<UIThemeSO>(ThemePath);
            SeedLocalization(report);
            BuildPrefab(theme, report);

            AssetDatabase.SaveAssets();
            AssetDatabase.Refresh();

            var sb = new System.Text.StringBuilder("[UICharm] 护符面板已生成：\n");
            foreach (var r in report) sb.AppendLine("  • " + r);
            sb.AppendLine("运行期读 IEquipmentService（EquipmentManager）；重跑「Scaffold Inventory Hub」把它收编为护符 Tab。");
            Debug.Log(sb.ToString());
        }

        private static void SeedLocalization(List<string> report)
        {
            var zh = new Dictionary<string, string>
            {
                { "MENU_CHARM", "护符" }, { "CHARM_TITLE", "护符" },
                { "CHARM_EQUIPPED", "已装备" }, { "CHARM_CATALOG", "收藏" }, { "CHARM_NOTCHES", "凹槽" },
            };
            var en = new Dictionary<string, string>
            {
                { "MENU_CHARM", "Charms" }, { "CHARM_TITLE", "Charms" },
                { "CHARM_EQUIPPED", "Equipped" }, { "CHARM_CATALOG", "Collected" }, { "CHARM_NOTCHES", "Notches" },
            };
            int added = MergeWriteUI(Language.ChineseSimplified, zh) + MergeWriteUI(Language.English, en);
            report.Add($"本地化新增 {added} 条（已存在不覆盖）。");
        }

        private static int MergeWriteUI(Language lang, Dictionary<string, string> kv)
        {
            var dict = LocalizationFileIO.Read(lang, LocalizationTable.UI);
            int added = 0;
            foreach (var p in kv)
                if (!dict.ContainsKey(p.Key)) { dict[p.Key] = p.Value; added++; }
            if (added > 0) LocalizationFileIO.Write(lang, LocalizationTable.UI, dict);
            return added;
        }

        // ── 预制件 ───────────────────────────────────────────────────────────
        private static void BuildPrefab(UIThemeSO theme, List<string> report)
        {
            var root = new GameObject(PrefabName,
                typeof(RectTransform), typeof(Canvas), typeof(CanvasScaler), typeof(GraphicRaycaster), typeof(CanvasGroup));
            Stretch((RectTransform)root.transform);
            SetupCanvas(root, 61);
            var panel = root.AddComponent<CharmEquipPanel>();
            var applier = root.AddComponent<UIThemeApplier>();
            if (theme != null) AssignRef(applier, "_theme", theme);

            // 全屏遮罩（chrome：内嵌时隐藏）
            var overlayGo = NewUIChild(root.transform, "Overlay", out var overlayRt);
            Stretch(overlayRt);
            var overlay = overlayGo.AddComponent<Image>(); overlay.color = new Color(0f, 0f, 0f, 0.6f);

            // 主框
            var boxGo = NewUIChild(root.transform, "DialogBox", out var boxRt);
            SetRect(boxRt, C(0.5f), C(0.5f), C(0.5f), Vector2.zero, new Vector2(1280f, 720f));
            var box = boxGo.AddComponent<Image>();
            box.sprite = Std(); box.type = Image.Type.Sliced; box.color = new Color(0.10f, 0.11f, 0.15f, 0.98f);
            SetEnum(boxGo.AddComponent<UIThemeRole>(), "_kind", (int)UIThemeRoleKind.Graphic_Background);

            // 标题
            var titleGo = NewUIChild(boxGo.transform, "Title", out var titleRt);
            SetRect(titleRt, C(0.5f, 1f), C(0.5f, 1f), C(0.5f, 1f), new Vector2(0f, -50f), new Vector2(600f, 60f));
            var title = titleGo.AddComponent<TextMeshProUGUI>();
            title.alignment = TextAlignmentOptions.Center; title.fontSize = 40f; title.raycastTarget = false;
            titleGo.AddComponent<LocalizedText>();
            SetString(titleGo.GetComponent<LocalizedText>(), "_key", "CHARM_TITLE");
            SetEnum(titleGo.AddComponent<UIThemeRole>(), "_kind", (int)UIThemeRoleKind.Text_Header);

            // 凹槽进度条（已用/总数）
            var notchGo = NewUIChild(boxGo.transform, "NotchBar", out var notchRt);
            SetRect(notchRt, C(0.5f, 1f), C(0.5f, 1f), C(0.5f, 1f), new Vector2(0f, -110f), new Vector2(420f, 34f));
            var notchBg = notchGo.AddComponent<Image>(); notchBg.color = new Color(1f, 1f, 1f, 0.08f);
            notchBg.sprite = Std(); notchBg.type = Image.Type.Sliced;
            var fillGo = NewUIChild(notchGo.transform, "Fill", out var fillRt);
            Stretch(fillRt);
            var notchFill = fillGo.AddComponent<Image>();
            notchFill.color = new Color(0.85f, 0.80f, 0.55f, 0.85f);
            notchFill.sprite = Std(); notchFill.type = Image.Type.Filled;
            notchFill.fillMethod = Image.FillMethod.Horizontal; notchFill.fillOrigin = 0; notchFill.fillAmount = 0f;
            var notchTextGo = NewUIChild(notchGo.transform, "NotchText", out var notchTextRt);
            Stretch(notchTextRt);
            var notchText = notchTextGo.AddComponent<TextMeshProUGUI>();
            notchText.alignment = TextAlignmentOptions.Center; notchText.fontSize = 20f; notchText.raycastTarget = false;
            SetEnum(notchTextGo.AddComponent<UIThemeRole>(), "_kind", (int)UIThemeRoleKind.Text_Primary);

            // 已装备区（左）
            var equippedLabel = MakeSectionLabel(boxGo.transform, "EquippedLabel", "CHARM_EQUIPPED",
                C(0f, 1f), new Vector2(60f, -160f), new Vector2(420f, 34f));
            var equippedGo = NewUIChild(boxGo.transform, "EquippedContainer", out var equippedRt);
            SetRect(equippedRt, C(0f, 1f), C(0f, 1f), C(0f, 1f), new Vector2(40f, -200f), new Vector2(440f, 460f));
            var eqGrid = equippedGo.AddComponent<GridLayoutGroup>();
            eqGrid.cellSize = new Vector2(200f, 96f); eqGrid.spacing = new Vector2(8f, 8f);
            eqGrid.childAlignment = TextAnchor.UpperLeft; eqGrid.constraint = GridLayoutGroup.Constraint.FixedColumnCount;
            eqGrid.constraintCount = 2;

            // 收藏目录（右，滚动）
            var catalogLabel = MakeSectionLabel(boxGo.transform, "CatalogLabel", "CHARM_CATALOG",
                C(1f, 1f), new Vector2(-490f, -160f), new Vector2(440f, 34f));
            var scrollGo = NewUIChild(boxGo.transform, "CatalogScroll", out var scrollRt);
            SetRect(scrollRt, C(1f, 1f), C(1f, 1f), C(1f, 1f), new Vector2(-40f, -200f), new Vector2(680f, 460f));
            var scrollImg = scrollGo.AddComponent<Image>(); scrollImg.color = new Color(1f, 1f, 1f, 0.03f);
            var scroll = scrollGo.AddComponent<ScrollRect>();
            scroll.horizontal = false; scroll.vertical = true;
            var viewportGo = NewUIChild(scrollGo.transform, "Viewport", out var viewportRt);
            Stretch(viewportRt);
            var vpImg = viewportGo.AddComponent<Image>(); vpImg.color = new Color(1f, 1f, 1f, 0.01f);
            viewportGo.AddComponent<RectMask2D>();
            var catalogGo = NewUIChild(viewportGo.transform, "CatalogContainer", out var catalogRt);
            SetRect(catalogRt, C(0f, 1f), C(1f, 1f), C(0.5f, 1f), Vector2.zero, new Vector2(0f, 0f));
            var catGrid = catalogGo.AddComponent<GridLayoutGroup>();
            catGrid.cellSize = new Vector2(200f, 96f); catGrid.spacing = new Vector2(8f, 8f);
            catGrid.childAlignment = TextAnchor.UpperLeft; catGrid.constraint = GridLayoutGroup.Constraint.FixedColumnCount;
            catGrid.constraintCount = 3; catGrid.padding = new RectOffset(8, 8, 8, 8);
            var catFitter = catalogGo.AddComponent<ContentSizeFitter>();
            catFitter.verticalFit = ContentSizeFitter.FitMode.PreferredSize;
            AssignRef(scroll, "m_Content", catalogRt);
            AssignRef(scroll, "m_Viewport", viewportRt);

            // 卡片模板（CharmCardView，inactive）
            var cardGo = BuildCardTemplate(boxGo.transform);

            // 关闭按钮（chrome：内嵌时隐藏）
            var closeGo = NewUIChild(boxGo.transform, "Btn_Close", out var closeRt);
            SetRect(closeRt, C(0.5f, 0f), C(0.5f, 0f), C(0.5f, 0f), new Vector2(0f, 36f), new Vector2(240f, 56f));
            var closeImg = closeGo.AddComponent<Image>(); closeImg.sprite = Std(); closeImg.type = Image.Type.Sliced;
            closeImg.color = new Color(1f, 1f, 1f, 0.06f);
            var closeBtn = closeGo.AddComponent<Button>(); closeBtn.targetGraphic = closeImg;
            var closeLblGo = NewUIChild(closeGo.transform, "Label", out var closeLblRt);
            Stretch(closeLblRt);
            var closeLbl = closeLblGo.AddComponent<TextMeshProUGUI>();
            closeLbl.alignment = TextAlignmentOptions.Center; closeLbl.fontSize = 26f;
            closeLblGo.AddComponent<LocalizedText>();
            SetString(closeLblGo.GetComponent<LocalizedText>(), "_key", "BTN_BACK");
            SetEnum(closeLblGo.AddComponent<UIThemeRole>(), "_kind", (int)UIThemeRoleKind.Text_Primary);

            // 绑定 CharmEquipPanel
            AssignRef(panel, "_notchText", notchText);
            AssignRef(panel, "_notchBarFill", notchFill);
            AssignRef(panel, "_equippedContainer", equippedGo.transform);
            AssignRef(panel, "_catalogContainer", catalogGo.transform);
            AssignRef(panel, "_charmCardTemplate", cardGo);
            AssignRef(panel, "_btnClose", closeBtn);
            AssignRef(panel, "_onEquipmentChanged", FindAsset<VoidEventChannelSO>("EVT_EquipmentChanged"));
            if (FindAsset<VoidEventChannelSO>("EVT_EquipmentChanged") == null)
                report.Add("EVT_EquipmentChanged 未找到，_onEquipmentChanged 留空（运行 BaseGames ▸ Events ▸ Create Event Channels）。");

            root.SetActive(false);
            PrefabUtility.SaveAsPrefabAsset(root, $"{PrefabDir}/{PrefabName}.prefab");
            Object.DestroyImmediate(root);
            report.Add($"{PrefabDir}/{PrefabName}.prefab");
        }

        // 护符卡片模板：CharmCardView + icon/name/notchCost/desc/badge/button（整卡为按钮）
        private static GameObject BuildCardTemplate(Transform parent)
        {
            var cardGo = NewUIChild(parent, "CharmCardTemplate", out var cardRt);
            cardRt.sizeDelta = new Vector2(200f, 96f);
            var bg = cardGo.AddComponent<Image>(); bg.color = new Color(1f, 1f, 1f, 0.05f);
            bg.sprite = Std(); bg.type = Image.Type.Sliced;
            var btn = cardGo.AddComponent<Button>(); btn.targetGraphic = bg;
            var view = cardGo.AddComponent<CharmCardView>();

            var iconGo = NewUIChild(cardGo.transform, "Icon", out var iconRt);
            SetRect(iconRt, C(0f, 0.5f), C(0f, 0.5f), C(0f, 0.5f), new Vector2(12f, 0f), new Vector2(64f, 64f));
            var icon = iconGo.AddComponent<Image>(); icon.preserveAspect = true; icon.raycastTarget = false;

            var nameGo = NewUIChild(cardGo.transform, "Name", out var nameRt);
            SetRect(nameRt, C(0f, 1f), C(1f, 1f), C(0f, 1f), new Vector2(88f, -10f), new Vector2(-96f, 28f));
            var nameTxt = nameGo.AddComponent<TextMeshProUGUI>();
            nameTxt.fontSize = 20f; nameTxt.raycastTarget = false; nameTxt.alignment = TextAlignmentOptions.TopLeft;
            SetEnum(nameGo.AddComponent<UIThemeRole>(), "_kind", (int)UIThemeRoleKind.Text_Header);

            var costGo = NewUIChild(cardGo.transform, "NotchCost", out var costRt);
            SetRect(costRt, C(1f, 1f), C(1f, 1f), C(1f, 1f), new Vector2(-10f, -10f), new Vector2(40f, 28f));
            var costTxt = costGo.AddComponent<TextMeshProUGUI>();
            costTxt.fontSize = 18f; costTxt.alignment = TextAlignmentOptions.TopRight; costTxt.raycastTarget = false;
            SetEnum(costGo.AddComponent<UIThemeRole>(), "_kind", (int)UIThemeRoleKind.Text_Secondary);

            var descGo = NewUIChild(cardGo.transform, "Desc", out var descRt);
            SetRect(descRt, C(0f, 0f), C(1f, 0f), C(0f, 0f), new Vector2(88f, 8f), new Vector2(-96f, 44f));
            var descTxt = descGo.AddComponent<TextMeshProUGUI>();
            descTxt.fontSize = 15f; descTxt.alignment = TextAlignmentOptions.TopLeft; descTxt.raycastTarget = false;
            descTxt.enableWordWrapping = true;
            SetEnum(descGo.AddComponent<UIThemeRole>(), "_kind", (int)UIThemeRoleKind.Text_Secondary);

            var badgeGo = NewUIChild(cardGo.transform, "Badge", out var badgeRt);
            SetRect(badgeRt, C(1f, 0f), C(1f, 0f), C(1f, 0f), new Vector2(-12f, 10f), new Vector2(28f, 28f));
            var badgeTxt = badgeGo.AddComponent<TextMeshProUGUI>();
            badgeTxt.fontSize = 22f; badgeTxt.alignment = TextAlignmentOptions.Center; badgeTxt.raycastTarget = false;
            SetEnum(badgeGo.AddComponent<UIThemeRole>(), "_kind", (int)UIThemeRoleKind.Graphic_Accent);

            // 绑定 CharmCardView 字段
            AssignRef(view, "_icon", icon);
            AssignRef(view, "_iconRoot", iconGo);
            AssignRef(view, "_nameText", nameTxt);
            AssignRef(view, "_notchCostText", costTxt);
            AssignRef(view, "_descriptionText", descTxt);
            AssignRef(view, "_equipBadgeText", badgeTxt);
            AssignRef(view, "_actionButton", btn);

            cardGo.SetActive(false);
            return cardGo;
        }

        private static TMP_Text MakeSectionLabel(Transform parent, string name, string locKey,
            Vector2 anchor, Vector2 pos, Vector2 size)
        {
            var go = NewUIChild(parent, name, out var rt);
            SetRect(rt, anchor, anchor, anchor, pos, size);
            var t = go.AddComponent<TextMeshProUGUI>();
            t.fontSize = 24f; t.alignment = TextAlignmentOptions.Left; t.raycastTarget = false;
            go.AddComponent<LocalizedText>();
            SetString(go.GetComponent<LocalizedText>(), "_key", locKey);
            SetEnum(go.AddComponent<UIThemeRole>(), "_kind", (int)UIThemeRoleKind.Text_Header);
            return t;
        }

        // ── 助手（对照 UIFormSkillScaffold）────────────────────────────────────
        private static Vector2 C(float x = 0.5f, float y = 0.5f) => new Vector2(x, y);

        private static GameObject NewUIChild(Transform parent, string name, out RectTransform rt)
        {
            var go = new GameObject(name, typeof(RectTransform));
            rt = (RectTransform)go.transform; rt.SetParent(parent, false);
            return go;
        }

        private static void Stretch(RectTransform rt)
        { rt.anchorMin = Vector2.zero; rt.anchorMax = Vector2.one; rt.offsetMin = Vector2.zero; rt.offsetMax = Vector2.zero; }

        private static void SetRect(RectTransform rt, Vector2 aMin, Vector2 aMax, Vector2 pivot, Vector2 pos, Vector2 size)
        { rt.anchorMin = aMin; rt.anchorMax = aMax; rt.pivot = pivot; rt.anchoredPosition = pos; rt.sizeDelta = size; }

        private static void SetEnum(Component c, string prop, int value)
        { var so = new SerializedObject(c); var p = so.FindProperty(prop); if (p != null) { p.enumValueIndex = value; so.ApplyModifiedPropertiesWithoutUndo(); } }

        private static void SetString(Component c, string prop, string value)
        { if (c == null) return; var so = new SerializedObject(c); var p = so.FindProperty(prop); if (p != null) { p.stringValue = value; so.ApplyModifiedPropertiesWithoutUndo(); } }

        private static void AssignRef(Object target, string prop, Object value)
        { var so = new SerializedObject(target); var p = so.FindProperty(prop); if (p != null) { p.objectReferenceValue = value; so.ApplyModifiedPropertiesWithoutUndo(); } }

        private static T FindAsset<T>(string name) where T : Object
        {
            foreach (var guid in AssetDatabase.FindAssets($"{name} t:{typeof(T).Name}"))
            {
                var path = AssetDatabase.GUIDToAssetPath(guid);
                var a = AssetDatabase.LoadAssetAtPath<T>(path);
                if (a != null && a.name == name) return a;
            }
            return null;
        }

        private static void SetupCanvas(GameObject go, int sortOrder)
        {
            var canvas = go.GetComponent<Canvas>();
            canvas.renderMode = RenderMode.ScreenSpaceOverlay; canvas.sortingOrder = sortOrder;
            var scaler = go.GetComponent<CanvasScaler>();
            scaler.uiScaleMode = CanvasScaler.ScaleMode.ScaleWithScreenSize;
            scaler.referenceResolution = new Vector2(1920f, 1080f);
            scaler.screenMatchMode = CanvasScaler.ScreenMatchMode.MatchWidthOrHeight;
            scaler.matchWidthOrHeight = 0.5f;
        }

        private static Sprite Std() => AssetDatabase.GetBuiltinExtraResource<Sprite>("UI/Skin/UISprite.psd");

        private static void EnsureFolder(string dir)
        {
            string[] parts = dir.Split('/'); string cur = parts[0];
            for (int i = 1; i < parts.Length; i++) { string n = $"{cur}/{parts[i]}"; if (!AssetDatabase.IsValidFolder(n)) AssetDatabase.CreateFolder(cur, parts[i]); cur = n; }
        }
    }
}