using System;

namespace MSCO
{
    /// <summary>
    /// Alle MSCO-Befehle an einer Stelle - genutzt von der eigenen F7-Konsole (ohne "mp" davor)
    /// und von der MSCLoader-Konsole ("mp ...").
    /// </summary>
    public static class Commands
    {
        public const string Help =
            "connect <host[:port]>  - join a dedicated server\n" +
            "switch <nickname>      - quickly switch to a favorite server (also /switch in chat)\n" +
            "fav                    - list your favorite servers\n" +
            "fav add <nick> [host:port] - add a favorite (without address: the server you are on)\n" +
            "fav remove <nick>      - remove a favorite\n" +
            "disconnect             - leave the server / game\n" +
            "host [port] / join <ip> [port] - direct LAN game (no Steam)\n" +
            "save                   - save the game (host / singleplayer)\n" +
            "ping [on|off]          - show your ping to the server (toggle)\n" +
            "fps [on|off]           - show the frames per second (toggle)\n" +
            "/admin                 - admin menu (kick / ban / teleport / cheats)\n" +
            "vehicles | rig         - debug info about vehicles / player models\n" +
            "vars <filter>          - synced vehicle values, e.g. vars oil (debug)\n" +
            "debug                  - toggle sync debug output\n" +
            "clear                  - clear this console";

        static void Favorite(MultiplayerManager mp, string[] args, Action<string> print)
        {
            string sub = args.Length > 1 ? args[1].ToLower() : "list";
            if (sub == "list")
            {
                if (Favorites.All.Count == 0) { print("No favorites yet - open a server in the browser and press FAVORITE, or: fav add <nick>"); return; }
                foreach (Favorites.Favorite f in Favorites.All)
                    print("  " + f.Nickname + "  ->  " + f.Address + (string.IsNullOrEmpty(f.ServerName) ? "" : "  (" + f.ServerName + ")"));
                print("switch <nickname> to join one");
                return;
            }
            if (sub == "add" || sub == "set")
            {
                if (args.Length < 3) { print("fav add <nickname> [host:port]"); return; }
                string host = mp.CurrentServerHost, name = mp.CurrentServerName;
                int port = mp.CurrentServerPort;
                if (args.Length > 3 && !ServerBrowser.TryParseAddress(args[3], out host, out port)) { print("Invalid address: " + args[3]); return; }
                if (host == null) { print("You are not on a server - use: fav add <nickname> <host:port>"); return; }
                string error = Favorites.Set(args[2], host, port, name);
                print(error ?? "Favorite '" + Favorites.CleanNickname(args[2]) + "' saved (" + host + ":" + port + ")");
                return;
            }
            if (sub == "remove" || sub == "del" || sub == "delete")
            {
                Favorites.Favorite f = args.Length > 2 ? Favorites.Find(args[2]) : null;
                print(f != null && Favorites.Remove(f) ? "Favorite '" + f.Nickname + "' removed" : "No such favorite");
                return;
            }
            print("fav | fav add <nick> [host:port] | fav remove <nick>");
        }

        public static void Execute(string[] args, Action<string> print)
        {
            var mp = MultiplayerManager.Instance;
            if (mp == null) { print("Not ready yet"); return; }
            if (args.Length == 0) { print(Help); return; }

            int port = MultiplayerManager.DefaultPort;
            switch (args[0].ToLower())
            {
                case "help":
                case "?":
                    print(Help);
                    break;
                case "host":
                    if (args.Length > 1) int.TryParse(args[1], out port);
                    mp.Host(port);
                    break;
                case "join":
                    if (args.Length < 2) { print("join <ip> [port]"); return; }
                    if (args.Length > 2) int.TryParse(args[2], out port);
                    mp.Join(args[1], port);
                    break;
                case "stop":
                case "disconnect":
                case "quit":
                    mp.Disconnect();
                    print("Disconnected.");
                    break;
                case "connect":
                {
                    string host;
                    int serverPort;
                    if (args.Length < 2 || !ServerBrowser.TryParseAddress(args[1], out host, out serverPort))
                    {
                        print("connect <host[:port]>");
                        return;
                    }
                    mp.JoinServer(host, serverPort);
                    break;
                }
                case "switch":
                case "sw":
                    print(mp.SwitchServer(args.Length > 1 ? args[1] : ""));
                    break;
                case "fav":
                case "favs":
                case "favorites":
                    Favorite(mp, args, print);
                    break;
                case "save":
                    mp.SaveGame();
                    break;
                case "ping":
                    // "ping" schaltet die Anzeige um, "ping on/off" setzt sie
                    if (args.Length > 1) mp.ShowPing = args[1].ToLower() == "on" || args[1] == "1";
                    else mp.ShowPing = !mp.ShowPing;
                    print("Ping: " + mp.PingText + " (display " + (mp.ShowPing ? "on" : "off") + ")");
                    break;
                case "fps":
                    // "fps" schaltet die Anzeige um, "fps on/off" setzt sie
                    if (args.Length > 1) mp.ShowFps = args[1].ToLower() == "on" || args[1] == "1";
                    else mp.ShowFps = !mp.ShowFps;
                    print("FPS: " + mp.FpsText + " (display " + (mp.ShowFps ? "on" : "off") + ")");
                    break;
                case "admin":
                case "/admin":
                    mp.OpenAdminMenu();
                    break;
                case "rig":
                    foreach (string line in mp.DescribeRigs()) print(line);
                    break;
                case "vehicles":
                    foreach (string line in mp.DescribeVehicles()) print(line);
                    break;
                case "vars":
                    // Diagnose: welche Fahrzeugwerte synchronisiert werden (z.B. "vars oil")
                    foreach (string line in mp.DescribeVehicleValues(args.Length > 1 ? args[1] : "")) print(line);
                    break;
                case "debug":
                    FsmSync.Debug = !FsmSync.Debug;
                    print("Sync debug output " + (FsmSync.Debug ? "ON" : "OFF"));
                    break;
                default:
                    print("Unknown command '" + args[0] + "' - type 'help'");
                    break;
            }
        }
    }
}