internal class DuelChallengeMenu : Menu
    {
        public override int Id { get; set; } = -100010;
        public override string Name { get; set; } = "Duel Challenge";

        private List<ServerSpecificSettingBase> _settings;
        private SSTextArea _selectedColorTextArea;
        
        public ServerSpecificSettingBase[] GetSettings()
        {
            _selectedColorTextArea ??= new SSTextArea(1, "No duel was sent");

            var players = Player.List
                .Where(x => x.IsVerified || x.IsNPC)
                .ToArray();
            var playerNames = players.Select(p => p.Nickname).ToArray();

            var gamemodes = Project.Instance.Config.Gamemodes
                .Where(x => !string.IsNullOrEmpty(x.Name))
                .Select(g => g.Name)
                .ToArray();

            var arenas = Project.Instance.Config.Arenas
                .Select(a => a.Name)
                .ToArray();
            
            _settings = new List<ServerSpecificSettingBase>
            {
                _selectedColorTextArea,

                new Dropdown(
                    id: 1,
                    label: "Pick Opponent",
                    options: playerNames,
                    hint: "Select a player to duel"
                ),
                new Dropdown(
                    id: 2,
                    label: "Select Gamemode",
                    options: gamemodes,
                    hint: "Which gamemode to queue for"
                ),
                new Dropdown(
                    id: 3,
                    label: "Select Arena",
                    options: arenas,
                    hint: "Which arena to queue in"
                ),
                new Button(
                    id: 4,
                    label: "Invite",
                    buttonText: "Send Duel Invite",
                    onClick: (h, _) =>
                    {
                        Player player = Player.Get(h);

                        // Opponent selection
                        int oppIdx = h.GetParameter<DuelChallengeMenu, SSDropdownSetting>(1)
                            .SyncSelectionIndexRaw;
                        var target = players[oppIdx];

                        if (player == target)
                        {
                            _selectedColorTextArea.SendTextUpdate("You cannot send a duel request to yourself");
                            return;
                        }
                        if (target.GetFight().HasValue)
                        {
                            _selectedColorTextArea.SendTextUpdate("Wait until the player finishes their current fight");
                            return;
                        }

                        // Gamemode & arena selection
                        int gmIdx = h.GetParameter<DuelChallengeMenu, SSDropdownSetting>(2)
                            .SyncSelectionIndexRaw;
                        int arIdx = h.GetParameter<DuelChallengeMenu, SSDropdownSetting>(3)
                            .SyncSelectionIndexRaw;

                        var selectedGm = gamemodes[gmIdx];
                        var selectedAr = arenas[arIdx];
                        
                        // Validate blacklist
                        var arenaCfg = Project.Instance.Config.Arenas
                            .First(a => a.Name == selectedAr);
                        if (arenaCfg.GamemodeBlacklisted
                            .Any(x => x.Equals(selectedGm, StringComparison.OrdinalIgnoreCase)))
                        {
                            var supported = Project.Instance.Config.Gamemodes
                                .Select(g => g.Name)
                                .Where(n => !arenaCfg.GamemodeBlacklisted
                                    .Any(b => b.Equals(n, StringComparison.OrdinalIgnoreCase)))
                                .ToArray();

                            _selectedColorTextArea.SendTextUpdate(
                                $"❌ Gamemode “{selectedGm}” is not supported on “{selectedAr}”.\n" +
                                $"Supported gamemodes: {string.Join(", ", supported)}"
                            );
                            return;
                        }

                        InviteManager.SendDuelInvite(player, target, selectedGm, selectedAr);
                        _selectedColorTextArea.SendTextUpdate($"Sent duel to {target.Nickname} ({selectedGm} @ {selectedAr}).");
                    },
                    holdTimeSeconds: null,
                    hint: "Send a duel invitation"
                )
            };
            
            return _settings.ToArray();
        }

        public override ServerSpecificSettingBase[] Settings => GetSettings();
    }