using System;
using System.Collections.Generic;
using UnityEngine;

namespace MSCO
{
    /// <summary>Spieler im Admin-Menü.</summary>
    public class AdminPlayer
    {
        public int Id;
        public string Name;
        public string SteamId;
        public bool IsAdmin;
    }

    /// <summary>
    /// Fenster über dem Spiel: F7-Konsole (alle MSCO-Befehle), Chat (T) und Admin-Menü (/admin).
    /// Solange eins davon offen ist, sind Spielerbewegung und Kamera gesperrt (InputLock).
    /// </summary>
    public class Overlays
    {
        const int MaxConsoleLines = 300;
        const int MaxChatLines = 60;
        const float ChatFadeSeconds = 15f;
        const string ConsoleControl = "msco_console";
        const string ChatControl = "msco_chat";

        class ChatLine
        {
            public string Name, Text;
            public bool System;
            public float Time;
        }

        // Konsole
        public bool ConsoleOpen { get; private set; }
        readonly List<string> consoleLines = new List<string>();
        readonly List<string> history = new List<string>();
        int historyIndex = -1;
        string consoleInput = "";
        Vector2 consoleScroll;
        int consoleOpenedFrame = -1;
        bool consoleScrollToEnd;

        // Chat
        public bool ChatOpen { get; private set; }
        readonly List<ChatLine> chat = new List<ChatLine>();
        string chatInput = "";
        int chatOpenedFrame = -1;

        // Admin
        public bool AdminOpen { get; private set; }
        List<AdminPlayer> adminPlayers;
        List<string> bannedIds;
        int adminTab;
        string adminReason = "";
        int confirmBanId = -1;
        Vector2 adminScroll;

        public bool AnyOpen { get { return ConsoleOpen || ChatOpen || AdminOpen; } }

        // Stile
        bool stylesReady;
        GUIStyle panel, rowStyle, field, logText, caption, title, primary, secondary, danger, chatName, chatText, chatSystem, small;

        // ---------------------------------------------------------------- Öffnen/Schließen

        public void ToggleConsole()
        {
            ConsoleOpen = !ConsoleOpen;
            if (ConsoleOpen)
            {
                ChatOpen = false;
                AdminOpen = false; // sonst liegt die Konsole über dem Admin-Menü und schluckt dessen Klicks
                consoleOpenedFrame = Time.frameCount;
                consoleScrollToEnd = true;
            }
        }

        public void OpenChat()
        {
            if (AnyOpen) return;
            ChatOpen = true;
            chatOpenedFrame = Time.frameCount;
            chatInput = "";
        }

        public void OpenAdmin(List<AdminPlayer> players)
        {
            AdminOpen = true;
            ConsoleOpen = false;
            ChatOpen = false;
            adminPlayers = players;
            confirmBanId = -1;
        }

        public void SetAdminPlayers(List<AdminPlayer> players) { adminPlayers = players; }
        public void SetBanned(List<string> ids) { bannedIds = ids; }
        public void SetBackups(List<string> names) { backupNames = names; }
        List<string> backupNames;
        string confirmWorld; // "reset" oder Name des Backups, das wiederhergestellt werden soll

        public void CloseAll()
        {
            ConsoleOpen = ChatOpen = AdminOpen = false;
        }

        // ---------------------------------------------------------------- Inhalte

        public void Log(string line)
        {
            foreach (string part in (line ?? "").Split('\n'))
            {
                consoleLines.Add(part);
                if (consoleLines.Count > MaxConsoleLines) consoleLines.RemoveAt(0);
            }
            consoleScrollToEnd = true;
        }

        public void AddChat(string name, string text, bool system = false)
        {
            chat.Add(new ChatLine { Name = name, Text = text, System = system, Time = Time.realtimeSinceStartup });
            if (chat.Count > MaxChatLines) chat.RemoveAt(0);
        }

        // ---------------------------------------------------------------- Zeichnen (OnGUI)

        public void Draw(MultiplayerManager mp, bool inGame)
        {
            EnsureStyles();
            if (inGame) DrawChat(mp);
            if (ConsoleOpen) DrawConsole();
            if (AdminOpen) DrawAdmin(mp);
        }

        void DrawConsole()
        {
            float width = Mathf.Min(Screen.width - 40, 960);
            var rect = new Rect((Screen.width - width) / 2f, 20, width, Mathf.Min(340, Screen.height * 0.5f));
            UiTheme.DrawShadow(rect);
            GUI.Box(rect, GUIContent.none, panel);

            GUI.Label(new Rect(rect.x + 16, rect.y + 10, 300, 20), "MSCO CONSOLE", caption);
            GUI.Label(new Rect(rect.xMax - 216, rect.y + 10, 200, 20), "type 'help'  -  F7 to close", small);

            // Tasten: Enter ausführen, Esc schließen, Hoch/Runter Verlauf
            Event e = Event.current;
            if (e.type == EventType.KeyDown && GUI.GetNameOfFocusedControl() == ConsoleControl)
            {
                if (e.keyCode == KeyCode.Return || e.keyCode == KeyCode.KeypadEnter)
                {
                    RunConsoleLine(consoleInput);
                    consoleInput = "";
                    e.Use();
                }
                else if (e.keyCode == KeyCode.Escape) { ConsoleOpen = false; e.Use(); return; }
                else if (e.keyCode == KeyCode.UpArrow && history.Count > 0)
                {
                    historyIndex = historyIndex < 0 ? history.Count - 1 : Mathf.Max(0, historyIndex - 1);
                    consoleInput = history[historyIndex];
                    e.Use();
                }
                else if (e.keyCode == KeyCode.DownArrow && historyIndex >= 0)
                {
                    historyIndex++;
                    consoleInput = historyIndex < history.Count ? history[historyIndex] : "";
                    if (historyIndex >= history.Count) historyIndex = -1;
                    e.Use();
                }
            }

            GUILayout.BeginArea(new Rect(rect.x + 14, rect.y + 34, rect.width - 28, rect.height - 84));
            if (consoleScrollToEnd && e.type == EventType.Repaint) { consoleScroll.y = float.MaxValue; consoleScrollToEnd = false; }
            consoleScroll = GUILayout.BeginScrollView(consoleScroll);
            foreach (string line in consoleLines) GUILayout.Label(line, logText);
            GUILayout.EndScrollView();
            GUILayout.EndArea();

            // Taste, mit der die Konsole geöffnet wurde, nicht als Zeichen übernehmen
            if (Time.frameCount == consoleOpenedFrame && e.type == EventType.KeyDown) e.Use();
            GUI.SetNextControlName(ConsoleControl);
            consoleInput = GUI.TextField(new Rect(rect.x + 14, rect.yMax - 46, rect.width - 28, 34), consoleInput, 200, field);
            GUI.FocusControl(ConsoleControl);
        }

        void RunConsoleLine(string line)
        {
            line = (line ?? "").Trim();
            if (line.Length == 0) return;
            history.Add(line);
            if (history.Count > 50) history.RemoveAt(0);
            historyIndex = -1;
            Log("> " + line);

            if (line == "clear") { consoleLines.Clear(); return; }
            string[] args = line.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
            if (args.Length > 0 && args[0] == "mp") // "mp connect ..." geht auch
            {
                var rest = new string[args.Length - 1];
                Array.Copy(args, 1, rest, 0, rest.Length);
                args = rest;
            }
            Commands.Execute(args, Log);
        }

        void DrawChat(MultiplayerManager mp)
        {
            float now = Time.realtimeSinceStartup;
            float width = Mathf.Min(460, Screen.width - 40);
            float lineHeight = 20;
            int maxLines = ChatOpen ? 12 : 6;

            // Sichtbare Zeilen: offen = die letzten, geschlossen = nur neue (blenden aus)
            var visible = new List<ChatLine>();
            for (int i = chat.Count - 1; i >= 0 && visible.Count < maxLines; i--)
                if (ChatOpen || now - chat[i].Time < ChatFadeSeconds) visible.Insert(0, chat[i]);

            float bottom = Screen.height * 0.62f;
            float height = visible.Count * lineHeight + (ChatOpen ? 52 : 12);
            var rect = new Rect(20, bottom - height, width, height);
            if (ChatOpen || visible.Count > 0) GUI.Box(rect, GUIContent.none, ChatOpen ? panel : rowStyle);

            Color old = GUI.color;
            float y = rect.y + 6;
            foreach (ChatLine line in visible)
            {
                float age = now - line.Time;
                float alpha = ChatOpen ? 1f : Mathf.Clamp01((ChatFadeSeconds - age) / 3f);
                GUI.color = new Color(1f, 1f, 1f, alpha);
                if (line.System)
                {
                    GUI.Label(new Rect(rect.x + 12, y, width - 24, lineHeight), line.Text, chatSystem);
                }
                else
                {
                    Vector2 size = chatName.CalcSize(new GUIContent(line.Name + ":"));
                    GUI.Label(new Rect(rect.x + 12, y, size.x, lineHeight), line.Name + ":", chatName);
                    GUI.Label(new Rect(rect.x + 16 + size.x, y, width - 28 - size.x, lineHeight), line.Text, chatText);
                }
                y += lineHeight;
            }
            GUI.color = old;

            if (!ChatOpen) return;

            Event e = Event.current;
            if (e.type == EventType.KeyDown && GUI.GetNameOfFocusedControl() == ChatControl)
            {
                if (e.keyCode == KeyCode.Return || e.keyCode == KeyCode.KeypadEnter)
                {
                    string text = chatInput.Trim();
                    if (text.Length > 0)
                    {
                        if (text.StartsWith("/")) RunConsoleLine(text.Substring(1)); // z.B. /admin
                        else mp.SendChat(text);
                    }
                    chatInput = "";
                    ChatOpen = false;
                    e.Use();
                    return;
                }
                if (e.keyCode == KeyCode.Escape) { ChatOpen = false; e.Use(); return; }
            }

            // Taste, mit der der Chat geöffnet wurde (T), nicht als Zeichen übernehmen
            if (Time.frameCount == chatOpenedFrame && e.type == EventType.KeyDown) e.Use();
            GUI.SetNextControlName(ChatControl);
            chatInput = GUI.TextField(new Rect(rect.x + 10, rect.yMax - 40, width - 20, 30), chatInput, 150, field);
            GUI.FocusControl(ChatControl);
        }

        // ---------------------------------------------------------------- Admin-Menü
        // Feste Fenstergröße für alle Reiter, Reiter gleich breit, Zeilen mit fest gesetzten Rechtecken (Texte mittig).

        const float AdminRow = 40f, AdminGap = 6f;
        GUIStyle nameMid, smallMid, captionMid, pillOk, pillWarn, pillBad, pillOff, chipOn, chipOff;
        Texture2D texBarBack, texBarFill, texBarLow;
        Vector2 teleportScroll, vehicleScroll;
        string partFilter = "", itemFilter = "", partCategory = "";
        bool partProblems, fluidsOpen = true;

        void EnsureAdminStyles()
        {
            if (nameMid != null && texBarBack != null) return;
            nameMid = new GUIStyle(chatName) { alignment = TextAnchor.MiddleLeft, wordWrap = false, clipping = TextClipping.Clip };
            nameMid.margin = new RectOffset();
            nameMid.padding = new RectOffset();
            smallMid = new GUIStyle(small) { alignment = TextAnchor.MiddleLeft, wordWrap = false, clipping = TextClipping.Clip };
            smallMid.margin = new RectOffset();
            smallMid.padding = new RectOffset();
            captionMid = new GUIStyle(caption) { alignment = TextAnchor.MiddleLeft };
            captionMid.margin = new RectOffset();
            pillOk = Pill(UiTheme.Online);
            pillWarn = Pill(UiTheme.Pending);
            pillBad = Pill(UiTheme.Danger);
            pillOff = Pill(UiTheme.Muted);
            chipOn = UiTheme.Button(new Color(UiTheme.Accent.r, UiTheme.Accent.g, UiTheme.Accent.b, 0.25f), new Color(UiTheme.Accent.r, UiTheme.Accent.g, UiTheme.Accent.b, 0.35f), UiTheme.AccentHover, 11);
            chipOff = UiTheme.Button(UiTheme.Secondary, UiTheme.SecondaryHover, UiTheme.Muted, 11);
            texBarBack = UiTheme.Solid(new Color(1f, 1f, 1f, 0.1f));
            texBarFill = UiTheme.Solid(UiTheme.Online);
            texBarLow = UiTheme.Solid(UiTheme.Danger);
        }

        static GUIStyle Pill(Color c)
        {
            GUIStyle st = UiTheme.Panel9(new Color(c.r, c.g, c.b, 0.18f), 4);
            st.normal.textColor = c;
            st.fontSize = 10;
            st.fontStyle = FontStyle.Bold;
            st.alignment = TextAnchor.MiddleCenter;
            st.padding = new RectOffset(7, 7, 0, 0);
            return st;
        }

        /// <summary>Zeile mit Hintergrund in einer Layout-Liste reservieren; gibt das Innere zurück (12 px Rand).</summary>
        Rect AdminRowRect(float height)
        {
            Rect r = GUILayoutUtility.GetRect(10, height, GUILayout.ExpandWidth(true));
            GUI.Box(new Rect(r.x, r.y + 2, r.width, r.height - 4), GUIContent.none, rowStyle);
            return new Rect(r.x + 12, r.y + 2, r.width - 24, r.height - 4);
        }

        /// <summary>Knöpfe von rechts nach links in einer Zeile; gibt die linke Kante des belegten Bereichs zurück.</summary>
        static bool RightButton(ref float right, Rect row, float width, string text, GUIStyle style, bool enabled = true)
        {
            right -= width;
            bool old = GUI.enabled;
            GUI.enabled = old && enabled;
            bool clicked = GUI.Button(new Rect(right, row.y + (row.height - 28) / 2f, width, 28), text, style);
            GUI.enabled = old;
            right -= AdminGap;
            return clicked;
        }

        void Bar(Rect r, float frac, float low)
        {
            var back = new Rect(r.x, r.y + (r.height - 6) / 2f, r.width, 6);
            GUI.DrawTexture(back, texBarBack);
            GUI.DrawTexture(new Rect(back.x, back.y, Mathf.Max(2f, back.width * Mathf.Clamp01(frac)), back.height), frac < low ? texBarLow : texBarFill);
        }

        void DrawAdmin(MultiplayerManager mp)
        {
            EnsureAdminStyles();
            float width = Mathf.Min(1000, Screen.width - 40), height = Mathf.Min(720, Screen.height - 40);
            var rect = new Rect(Mathf.Round((Screen.width - width) / 2f), Mathf.Round((Screen.height - height) / 2f), width, height);
            UiTheme.DrawShadow(rect);
            GUI.Box(rect, GUIContent.none, panel);

            if (Event.current.type == EventType.KeyDown && Event.current.keyCode == KeyCode.Escape)
            {
                AdminOpen = false;
                Event.current.Use();
                return;
            }

            // Kopf
            float x = rect.x + 20, w = rect.width - 40;
            GUI.Label(new Rect(x, rect.y + 16, 300, 34), "Admin", title);
            if (GUI.Button(new Rect(rect.xMax - 20 - 90, rect.y + 18, 90, 30), "CLOSE", secondary)) AdminOpen = false;
            if (GUI.Button(new Rect(rect.xMax - 20 - 90 - 8 - 100, rect.y + 18, 100, 30), "REFRESH", secondary))
            {
                mp.RequestAdminList();
                VehicleAdmin.Refresh(true);
            }

            // Reiter (gleich breit über die ganze Zeile)
            string[] tabs = { "PLAYERS", "TELEPORT", "VEHICLE", "ITEMS", "BANS" + (bannedIds != null && bannedIds.Count > 0 ? " (" + bannedIds.Count + ")" : ""), "WORLD" };
            float tabW = (w - AdminGap * (tabs.Length - 1)) / tabs.Length;
            for (int i = 0; i < tabs.Length; i++)
                if (GUI.Button(new Rect(x + i * (tabW + AdminGap), rect.y + 62, tabW, 32), tabs[i], adminTab == i ? primary : secondary)) adminTab = i;

            GUILayout.BeginArea(new Rect(x, rect.y + 108, w, rect.height - 124));
            if (adminTab == 1) DrawAdminTeleport(mp);
            else if (adminTab == 2) DrawAdminVehicle(mp);
            else if (adminTab == 3) DrawAdminItems(mp);
            else if (adminTab == 4) DrawAdminBans(mp);
            else if (adminTab == 5) DrawAdminWorld(mp);
            else DrawAdminPlayers(mp);
            GUILayout.EndArea();
        }

        // ---------------------------------------------------------------- PLAYERS

        void DrawAdminPlayers(MultiplayerManager mp)
        {
            if (mp.CanCheat)
            {
                Rect r = GUILayoutUtility.GetRect(10, 34, GUILayout.ExpandWidth(true));
                string[] labels = { "+1.000 MK", "+10.000 MK", "REFILL NEEDS", "SATSUMA TO ME" };
                float bw = (r.width - AdminGap * 3) / 4f;
                for (int i = 0; i < labels.Length; i++)
                {
                    if (!GUI.Button(new Rect(r.x + i * (bw + AdminGap), r.y, bw, 32), labels[i], primary)) continue;
                    if (i == 0) mp.CheatMoney(1000f);
                    else if (i == 1) mp.CheatMoney(10000f);
                    else if (i == 2) mp.CheatNeeds();
                    else mp.BringCar();
                }
                GUILayout.Label("Cheats are announced in the chat. GOTO teleports you to a player, BRING teleports a player to you.", small);
                GUILayout.Space(8);
            }

            Rect reason = GUILayoutUtility.GetRect(10, 32, GUILayout.ExpandWidth(true));
            GUI.Label(new Rect(reason.x, reason.y, 210, 32), "REASON FOR KICK / BAN (optional)", captionMid);
            adminReason = GUI.TextField(new Rect(reason.x + 214, reason.y, reason.width - 214, 32), adminReason ?? "", 100, field);
            GUILayout.Space(10);

            adminScroll = GUILayout.BeginScrollView(adminScroll);
            if (adminPlayers == null) GUILayout.Label("Loading players...", small);
            else if (adminPlayers.Count == 0) GUILayout.Label("No players.", small);
            else
            {
                foreach (AdminPlayer p in adminPlayers)
                {
                    Rect row = AdminRowRect(54);
                    bool self = p.Id == mp.LocalId;
                    GUI.Label(new Rect(row.x, row.y + 6, row.width * 0.45f, 22), p.Name + (self ? "  (you)" : "") + (p.IsAdmin ? "  (admin)" : ""), nameMid);
                    GUI.Label(new Rect(row.x, row.y + 26, row.width * 0.45f, 18),
                              string.IsNullOrEmpty(p.SteamId) ? "id " + p.Id : p.SteamId.StartsWith("name:") ? "no Steam" : "SteamID " + p.SteamId, smallMid);
                    float right = row.xMax;
                    bool confirming = confirmBanId == p.Id;
                    if (RightButton(ref right, row, 76, confirming ? "SURE?" : "BAN", danger, !self && !p.IsAdmin))
                    {
                        if (confirming) { mp.AdminAction(true, p.Id, adminReason); confirmBanId = -1; }
                        else confirmBanId = p.Id;
                    }
                    if (RightButton(ref right, row, 76, "KICK", secondary, !self && !p.IsAdmin)) mp.AdminAction(false, p.Id, adminReason);
                    if (mp.IsDedicated && RightButton(ref right, row, 124, p.IsAdmin ? "REMOVE ADMIN" : "MAKE ADMIN", secondary, !self)) mp.SetAdmin(p.Id, !p.IsAdmin);
                    if (mp.CanCheat)
                    {
                        if (RightButton(ref right, row, 76, "BRING", secondary, !self)) mp.BringPlayer(p.Id);
                        if (RightButton(ref right, row, 76, "GOTO", secondary, !self)) mp.GotoPlayer(p.Id);
                    }
                }
            }
            GUILayout.EndScrollView();
        }

        // ---------------------------------------------------------------- TELEPORT

        void DrawAdminTeleport(MultiplayerManager mp)
        {
            if (!mp.CanCheat)
            {
                GUILayout.Label("Teleporting only works in the game.", small);
                return;
            }
            GUILayout.Label("Teleport yourself to a place. Players: use GOTO / BRING on the PLAYERS tab.", small);
            GUILayout.Space(8);
            teleportScroll = GUILayout.BeginScrollView(teleportScroll);
            const int columns = 4;
            for (int i = 0; i < Cheats.Places.Length; i += columns)
            {
                Rect r = GUILayoutUtility.GetRect(10, 44, GUILayout.ExpandWidth(true));
                float bw = (r.width - AdminGap * (columns - 1)) / columns;
                for (int c = 0; c < columns && i + c < Cheats.Places.Length; c++)
                {
                    string[] place = Cheats.Places[i + c];
                    if (GUI.Button(new Rect(r.x + c * (bw + AdminGap), r.y, bw, 38), place[0].ToUpperInvariant(), secondary))
                        mp.TeleportToPlace(place[0], place[1]);
                }
            }
            GUILayout.EndScrollView();
        }

        // ---------------------------------------------------------------- VEHICLE

        void DrawAdminVehicle(MultiplayerManager mp)
        {
            if (!mp.CanCheat)
            {
                GUILayout.Label("Only works in the game.", small);
                return;
            }
            List<VehicleAdmin.Part> parts = VehicleAdmin.Parts;

            // Werkzeugleiste: Aktionen links, Suche rechts
            Rect bar = GUILayoutUtility.GetRect(10, 34, GUILayout.ExpandWidth(true));
            float bx = bar.x;
            if (GUI.Button(new Rect(bx, bar.y, 120, 32), "REPAIR ALL", primary))
            {
                int n = VehicleAdmin.RepairAll();
                Log(n + " part(s) repaired");
                if (n > 0) mp.VehicleCheat("repaired the Satsuma (" + n + " parts)");
            }
            bx += 120 + AdminGap;
            if (GUI.Button(new Rect(bx, bar.y, 120, 32), "TIGHTEN ALL", secondary))
            {
                int n = VehicleAdmin.SetAllBolts(true);
                Log(n + " part(s) tightened");
                if (n > 0) mp.VehicleCheat("tightened all bolts (" + n + " parts)");
            }
            bx += 120 + AdminGap;
            if (GUI.Button(new Rect(bx, bar.y, 116, 32), "LOOSEN ALL", danger))
            {
                int n = VehicleAdmin.SetAllBolts(false);
                Log(n + " part(s) loosened");
                if (n > 0) mp.VehicleCheat("loosened all bolts (" + n + " parts, testing)");
            }
            bx += 116 + 16;
            var search = new Rect(bx, bar.y, bar.xMax - bx, 32);
            partFilter = GUI.TextField(search, partFilter ?? "", 30, field);
            if (string.IsNullOrEmpty(partFilter)) GUI.Label(new Rect(search.x + 12, search.y, search.width, 32), "Search parts …", smallMid);
            GUILayout.Space(8);

            // Schnellfilter: Kategorien + nur Probleme + Füllstände ein/aus
            var categories = new List<string>();
            foreach (VehicleAdmin.Part p in parts) if (!categories.Contains(p.Category)) categories.Add(p.Category);
            Rect chips = GUILayoutUtility.GetRect(10, 30, GUILayout.ExpandWidth(true));
            float cx = chips.x;
            if (GUI.Button(new Rect(cx, chips.y, 104, 26), "FLUIDS " + (fluidsOpen ? "▾" : "▸"), fluidsOpen ? chipOn : chipOff)) fluidsOpen = !fluidsOpen;
            cx += 104 + 14;
            if (GUI.Button(new Rect(cx, chips.y, 104, 26), "PROBLEMS", partProblems ? chipOn : chipOff)) partProblems = !partProblems;
            cx += 104 + AdminGap;
            if (GUI.Button(new Rect(cx, chips.y, 60, 26), "ALL", partCategory == "" ? chipOn : chipOff)) partCategory = "";
            cx += 60 + AdminGap;
            foreach (string cat in categories)
            {
                string label = (cat.Length == 0 ? "OTHER" : cat).ToUpperInvariant();
                float cw = Mathf.Max(70, chipOff.CalcSize(new GUIContent(label)).x + 20);
                if (cx + cw > chips.xMax) break;
                if (GUI.Button(new Rect(cx, chips.y, cw, 26), label, partCategory == cat ? chipOn : chipOff)) partCategory = partCategory == cat ? "" : cat;
                cx += cw + AdminGap;
            }
            GUILayout.Space(6);

            vehicleScroll = GUILayout.BeginScrollView(vehicleScroll);
            if (fluidsOpen)
            {
                List<VehicleAdmin.Fluid> fluids = VehicleAdmin.Fluids;
                if (fluids.Count == 0) GUILayout.Label("No fluids found.", small);
                // zwei Spalten
                for (int i = 0; i < fluids.Count; i += 2)
                {
                    Rect line = GUILayoutUtility.GetRect(10, AdminRow, GUILayout.ExpandWidth(true));
                    float colW = (line.width - 10) / 2f;
                    for (int c = 0; c < 2 && i + c < fluids.Count; c++)
                    {
                        VehicleAdmin.Fluid f = fluids[i + c];
                        var cell = new Rect(line.x + c * (colW + 10), line.y + 2, colW, AdminRow - 4);
                        GUI.Box(cell, GUIContent.none, rowStyle);
                        var inner = new Rect(cell.x + 12, cell.y, cell.width - 24, cell.height);
                        GUI.Label(new Rect(inner.x, inner.y, 128, inner.height), f.Label, nameMid);
                        float right = inner.xMax;
                        if (RightButton(ref right, inner, 74, "EMPTY", danger)) { VehicleAdmin.SetFluid(f, false); mp.VehicleCheat("emptied " + f.Label.ToLower()); }
                        if (RightButton(ref right, inner, 60, "FILL", secondary)) { VehicleAdmin.SetFluid(f, true); mp.VehicleCheat("filled up " + f.Label.ToLower()); }
                        GUI.Label(new Rect(right - 66, inner.y, 66, inner.height), f.Value.Value.ToString("0.0") + " / " + f.Max.ToString("0.#"), smallMid);
                        Bar(new Rect(inner.x + 132, inner.y, right - 72 - (inner.x + 132), inner.height), f.Max > 0f ? f.Value.Value / f.Max : 0f, 0.25f);
                    }
                }
                GUILayout.Space(10);
            }

            string filter = (partFilter ?? "").Trim().ToLowerInvariant();
            int shown = 0;
            foreach (VehicleAdmin.Part p in parts)
            {
                bool installed = p.Installed == null || p.Installed.Value;
                bool damaged = p.Damaged != null && p.Damaged.Value;
                // "Bolted" in der Database zieht das Spiel erst später nach - die Festigkeit selbst ist aktuell
                bool loose = installed && p.Tightness != null && p.Tightness.Value < p.MaxTightness - 0.01f;
                bool worn = p.Wear != null && p.Wear.Value < 50f;
                if (partCategory.Length > 0 && p.Category != partCategory) continue;
                if (partProblems && !(damaged || loose || worn)) continue;
                if (filter.Length > 0 && !(p.Name + " " + p.Category).ToLowerInvariant().Contains(filter)) continue;
                shown++;

                Rect row = AdminRowRect(AdminRow);
                GUI.Label(new Rect(row.x, row.y, 200, row.height), p.Name, nameMid);
                GUI.Label(new Rect(row.x + 204, row.y, 90, row.height), p.Category, smallMid);

                // Zustand als Abzeichen
                string state = !installed ? "NOT INSTALLED" : damaged ? "DAMAGED" : loose ? "LOOSE" : p.Tightness != null ? "BOLTED" : "OK";
                GUIStyle pill = !installed ? pillOff : damaged ? pillBad : loose ? pillWarn : pillOk;
                GUI.Label(new Rect(row.x + 298, row.y + (row.height - 18) / 2f, 104, 18), state, pill);

                float right = row.xMax;
                if (RightButton(ref right, row, 66, "BREAK", danger)) { VehicleAdmin.Break(p); mp.VehicleCheat("broke " + p.Name + " (testing)"); }
                if (RightButton(ref right, row, 70, "REPAIR", secondary)) { VehicleAdmin.Repair(p); mp.VehicleCheat("repaired " + p.Name); }
                bool bolts = p.HasBolts && installed;
                if (RightButton(ref right, row, 72, "LOOSEN", secondary, bolts)) { VehicleAdmin.SetBolts(p, false); mp.VehicleCheat("loosened " + p.Name); }
                if (RightButton(ref right, row, 76, "TIGHTEN", secondary, bolts)) { VehicleAdmin.SetBolts(p, true); mp.VehicleCheat("tightened " + p.Name); }

                // Verschleiß
                float wearX = row.x + 410;
                if (p.Wear != null && right - wearX > 80)
                {
                    GUI.Label(new Rect(right - 44, row.y, 44, row.height), p.Wear.Value.ToString("0") + " %", smallMid);
                    Bar(new Rect(wearX, row.y, right - 50 - wearX, row.height), p.Wear.Value / 100f, 0.3f);
                }
            }
            if (shown == 0) GUILayout.Label(parts.Count == 0 ? "No parts found." : "No part matches the filter.", small);
            GUILayout.EndScrollView();
        }

        // ---------------------------------------------------------------- ITEMS

        void DrawAdminItems(MultiplayerManager mp)
        {
            if (!mp.CanCheat)
            {
                GUILayout.Label("Items can only be spawned in the game.", small);
                return;
            }
            Rect top = GUILayoutUtility.GetRect(10, 32, GUILayout.ExpandWidth(true));
            GUI.Label(new Rect(top.x, top.y, top.width - 330, 32), "Click an item to spawn it in front of you (everyone sees it, saved on the server).", smallMid);
            var search = new Rect(top.xMax - 320, top.y, 320, 32);
            itemFilter = GUI.TextField(search, itemFilter ?? "", 30, field);
            if (string.IsNullOrEmpty(itemFilter)) GUI.Label(new Rect(search.x + 12, search.y, search.width, 32), "Search items …", smallMid);
            GUILayout.Space(8);

            var items = new List<string>();
            string f = (itemFilter ?? "").Trim().ToLowerInvariant();
            foreach (string item in ItemSpawner.Items) if (f.Length == 0 || item.ToLowerInvariant().Contains(f)) items.Add(item);

            adminScroll = GUILayout.BeginScrollView(adminScroll);
            const int perRow = 5;
            for (int i = 0; i < items.Count; i += perRow)
            {
                Rect r = GUILayoutUtility.GetRect(10, 42, GUILayout.ExpandWidth(true));
                float bw = (r.width - AdminGap * (perRow - 1)) / perRow;
                for (int k = 0; k < perRow && i + k < items.Count; k++)
                    if (GUI.Button(new Rect(r.x + k * (bw + AdminGap), r.y, bw, 36), items[i + k].ToUpper(), secondary)) mp.SpawnItem(items[i + k]);
            }
            if (items.Count == 0) GUILayout.Label("No item matches the search.", small);
            GUILayout.EndScrollView();
        }

        // ---------------------------------------------------------------- WORLD

        /// <summary>Welt zurücksetzen, Backups anlegen und wiederherstellen (dedizierter Server).</summary>
        void DrawAdminWorld(MultiplayerManager mp)
        {
            if (!mp.IsDedicated)
            {
                GUILayout.Label("World reset and save backups are only available on a dedicated server.", small);
                return;
            }
            GUILayout.Label("Everyone reconnects after a reset or restore. The current state is backed up first.", small);
            GUILayout.Space(8);

            Rect r = GUILayoutUtility.GetRect(10, 34, GUILayout.ExpandWidth(true));
            float bw = (r.width - AdminGap * 2) / 3f;
            var b1 = new Rect(r.x, r.y, bw, 32);
            var b2 = new Rect(r.x + bw + AdminGap, r.y, bw, 32);
            var b3 = new Rect(r.x + 2 * (bw + AdminGap), r.y, bw, 32);
            if (confirmWorld == "reset")
            {
                if (GUI.Button(new Rect(b1.x, b1.y, bw / 2f - 3, 32), "REALLY RESET?", danger)) { mp.WorldAction(5, null); confirmWorld = null; }
                if (GUI.Button(new Rect(b1.x + bw / 2f + 3, b1.y, bw / 2f - 3, 32), "CANCEL", secondary)) confirmWorld = null;
            }
            else if (GUI.Button(b1, "RESET WORLD", danger)) confirmWorld = "reset";
            if (GUI.Button(b2, "BACKUP NOW", primary)) mp.WorldAction(6, null);
            if (confirmWorld == "point")
            {
                if (GUI.Button(new Rect(b3.x, b3.y, bw / 2f - 3, 32), "REALLY?", danger)) { mp.WorldAction(8, null); confirmWorld = null; }
                if (GUI.Button(new Rect(b3.x + bw / 2f + 3, b3.y, bw / 2f - 3, 32), "CANCEL", secondary)) confirmWorld = null;
            }
            else if (GUI.Button(b3, "SET RESET POINT", secondary)) confirmWorld = "point";
            GUILayout.Space(4);
            GUILayout.Label("Reset: the whole world goes back to the save game as it was uploaded to the server (the reset point). " +
                            "SET RESET POINT makes the current save the new reset point.", small);
            GUILayout.Space(10);

            GUILayout.Label("SAVE BACKUPS (NEWEST FIRST)", caption);
            adminScroll = GUILayout.BeginScrollView(adminScroll);
            if (backupNames == null) GUILayout.Label("Loading...", small);
            else if (backupNames.Count == 0) GUILayout.Label("No backups yet. They are created automatically when the server takes over a save game, or with BACKUP NOW.", small);
            else
            {
                foreach (string name in backupNames)
                {
                    Rect row = AdminRowRect(AdminRow);
                    GUI.Label(new Rect(row.x, row.y, 300, row.height), PrettyBackup(name), nameMid);
                    float right = row.xMax;
                    if (confirmWorld == name)
                    {
                        if (RightButton(ref right, row, 90, "CANCEL", secondary)) confirmWorld = null;
                        if (RightButton(ref right, row, 100, "REALLY?", danger)) { mp.WorldAction(7, name); confirmWorld = null; }
                    }
                    else if (RightButton(ref right, row, 100, "RESTORE", secondary)) confirmWorld = name;
                }
            }
            GUILayout.EndScrollView();
        }

        /// <summary>"20260927-104626" -> "27.09.2026  10:46:26".</summary>
        static string PrettyBackup(string name)
        {
            if (name == null || name.Length != 15 || name[8] != '-') return name;
            return name.Substring(6, 2) + "." + name.Substring(4, 2) + "." + name.Substring(0, 4) + "   " +
                   name.Substring(9, 2) + ":" + name.Substring(11, 2) + ":" + name.Substring(13, 2);
        }

        void DrawAdminBans(MultiplayerManager mp)
        {
            GUILayout.Label(mp.IsDedicated ? "Banned players cannot join this server. UNBAN lets them in again."
                                           : "Players banned from your game in this session.", small);
            GUILayout.Space(8);
            adminScroll = GUILayout.BeginScrollView(adminScroll);
            if (bannedIds == null) GUILayout.Label("Loading...", small);
            else if (bannedIds.Count == 0) GUILayout.Label("Nobody is banned.", small);
            else
            {
                EnsureAdminStyles();
                foreach (string id in bannedIds)
                {
                    Rect row = AdminRowRect(AdminRow);
                    GUI.Label(new Rect(row.x, row.y, row.width - 110, row.height), id.StartsWith("name:") ? id.Substring(5) + "  (no Steam)" : "SteamID " + id, nameMid);
                    float right = row.xMax;
                    if (RightButton(ref right, row, 90, "UNBAN", secondary)) mp.Unban(id);
                }
            }
            GUILayout.EndScrollView();
        }

        // ---------------------------------------------------------------- Stile

        void EnsureStyles()
        {
            if (stylesReady && panel.normal.background != null) return;
            panel = UiTheme.Card(UiTheme.Background, 10);
            rowStyle = UiTheme.Panel9(new Color(0.06f, 0.06f, 0.07f, 0.72f));
            rowStyle.padding = new RectOffset(12, 12, 6, 6);
            field = UiTheme.Field(14);
            logText = UiTheme.Label(12, UiTheme.Text);
            logText.wordWrap = true;
            logText.richText = true; // Warnungen/Fehler farbig markiert (MscoLog)
            logText.margin = new RectOffset(0, 0, 0, 0);
            caption = UiTheme.Label(11, UiTheme.Muted, FontStyle.Bold);
            title = UiTheme.Label(22, UiTheme.Text, FontStyle.Bold);
            title.wordWrap = false;
            small = UiTheme.Label(11, UiTheme.Muted);
            primary = UiTheme.PrimaryButton();
            secondary = UiTheme.Button(UiTheme.Secondary, UiTheme.SecondaryHover, UiTheme.Text, 12);
            danger = UiTheme.Button(UiTheme.Danger, UiTheme.DangerHover, Color.white, 12);
            chatName = UiTheme.Label(13, UiTheme.AccentHover, FontStyle.Bold, TextAnchor.MiddleLeft);
            chatText = UiTheme.Label(13, UiTheme.Text, FontStyle.Normal, TextAnchor.MiddleLeft);
            chatSystem = UiTheme.Label(12, UiTheme.Muted, FontStyle.Italic, TextAnchor.MiddleLeft);
            stylesReady = true;
        }
    }
}