namespace Supercell.Laser.Server
{
    using Spectre.Console;
    using Supercell.Laser.Server.Networking.Session;
    using Supercell.Laser.Titan.Debug;

    public static class Logger
    {
        private static readonly object SyncRoot = new object();

        public static void Init()
        {
            Debugger.SetListener(new DebuggerListener());
        }

        private static readonly string[] AsciiArt =
        [
            @"  ___  _    _             ___                 _  ",
            @" / __|| |_ (_) _ _  _  _ | _ ) _ _  __ _ __ | | ",
            @" \__ \| ' \| || ' \| || || _ \| '_|/ _` |\ V / | ",
            @" |___/|_||_|_||_||_|\_, ||___/|_|  \__,_| \_/|_| ",
            @"                    |__/                          ",
        ];

        public static void Banner()
        {
            lock (SyncRoot)
            {
                AnsiConsole.Clear();
                AnsiConsole.WriteLine();
                int width = AnsiConsole.Profile.Width;
                foreach (string line in AsciiArt)
                {
                    string padded = line.PadLeft((width + line.Length) / 2);
                    AnsiConsole.Write(new Text(padded + "\n", new Style(Color.HotPink)));
                }
                AnsiConsole.WriteLine();
            }
        }

        public static void Print(string log)   => Info(log);
        public static void Info(string log)    => Write("›", "INFO", log, Color.Cyan1);
        public static void Network(string log) => Write("◈", "NET",  log, Color.MediumPurple1);
        public static void Packet(string log)  => Write("◆", "PKT",  log, Color.Turquoise2);
        public static void Command(string log) => Write("❯", "CMD",  log, Color.Yellow1);
        public static void Success(string log) => Write("+", "OK",   log, Color.Chartreuse2);
        public static void Warning(string log) => Write("!", "WARN", log, Color.Yellow1);
        public static void Error(string log)   => Write("x", "ERR",  log, Color.Red1);

        public static void Connection(string ip)    => Write("→", "CONN", $"{ip} connected",    Color.MediumPurple1);
        public static void Disconnection(string ip) => Write("←", "DISC", $"{ip} disconnected", Color.Red1);

        public static void Exception(string context, Exception exception)
        {
            lock (SyncRoot)
            {
                Error($"{context}: {exception.GetType().Name}: {exception.Message}");
                AnsiConsole.WriteException(exception, ExceptionFormats.ShortenPaths | ExceptionFormats.ShowLinks);
            }
        }

        private static void Write(string icon, string level, string log, Color color)
        {
            lock (SyncRoot)
            {
                string time = DateTime.Now.ToString("HH:mm:ss");
                int online = 0;
                try { online = Sessions.Count; } catch { }

                int width = AnsiConsole.Profile.Width;
                string prefix = $"{time}  [{online}]  {icon} {level}  ";
                string full = prefix + log;
                int pad = Math.Max(0, (width - full.Length) / 2);
                string spaces = new string(' ', pad);

                AnsiConsole.Write(new Text(spaces + $"{time}  [{online}]  ", new Style(Color.Grey)));
                AnsiConsole.Write(new Text($"{icon} {level}  ", new Style(color, decoration: Decoration.Bold)));
                AnsiConsole.Write(new Text(log + "\n", new Style(Color.White)));
            }
        }
    }

    public class DebuggerListener : IDebuggerListener
    {
        public void Error(string message)   => Logger.Error($"[LOGIC] {message}");
        public void Print(string message)   => Logger.Info($"[LOGIC] {message}");
        public void Warning(string message) => Logger.Warning($"[LOGIC] {message}");
    }
}