using System.Numerics;
using Raylib_cs;

namespace OnekoOnline;

static class OnekoOnline
{
    public static readonly ConfigFile Config = new("config.conf");

    public static Net.Server? Server;
    public static Net.Client? Client;

    public static readonly int WindowX = 320;
    public static readonly int WindowY = 240;
    public static readonly int WindowScale = Config.GetValue("WindowScale", 2);
    public static Vector2 Resolution => new(WindowX, WindowY);

    public static readonly bool SpectatorMode = Config.GetValue("SpectatorMode", false);
    public static readonly bool HostServer = Config.GetValue("HostServer", false);
    public static readonly bool TransparentWindow = Config.GetValue("TransparentWindow", false);

    public static Font DefaultFont;

    public static string AppTitle {
        get => _appTitle;
        set {
            Raylib.SetWindowTitle(value);
            _appTitle = value;
        }
    }
    static string _appTitle = "Oneko Online";
    
    public static void Main()
    {
        if (TransparentWindow) Raylib.SetConfigFlags(ConfigFlags.TransparentWindow);
        Raylib.InitWindow(WindowX*WindowScale, WindowY*WindowScale, AppTitle);
        Raylib.SetTargetFPS(30);
        Raylib.HideCursor();

        MouseLocal LocalMouse = new();
        if (!SpectatorMode) {OnekoLocal LocalOneko = new();}

        RenderTexture2D RenderTexture = Raylib.LoadRenderTexture(WindowX, WindowY);

        int port = Config.GetValue("ServerPort", 42069);
        string serverPassword = Config.GetValue("ServerPassword", "");

        if (HostServer) {
            Server = new(port, Config.GetValue("ServerMaxUsers", 32));
            Client = new("127.0.0.1", port, serverPassword);
        } else {
            string Address = Config.GetValue("ServerIP", "pond.sarahduck.ca");
            
            if (string.IsNullOrEmpty(Address)) {
                Console.WriteLine("Server IP empty or invalid, you're offline.");
                AppTitle = "Oneko Offline";
            }
            else Client = new(Address, port, serverPassword);
        }
        Net.Client.UserConnected += OnekoNet.SpawnNetNeko;
        Net.Client.UserConnected += MouseNet.SpawnNetMouse;

        DefaultFont = Raylib.LoadFont("misc/MPlusBitmap.fnt");

        Color BackgroundColor = Color.Gray;
        if (TransparentWindow) BackgroundColor = BackgroundColor with {A = 0};

        while (!Raylib.WindowShouldClose())
        {
            //Poll networking
            Client?.Poll();
            Server?.Poll();

            Raylib.BeginTextureMode(RenderTexture);

            Raylib.ClearBackground(BackgroundColor);
            Raylib.DrawTextEx(DefaultFont, "こんにちは", new(17,18), 11, 0, Color.White);
            Raylib.DrawText(AppTitle, 10, 9, 8, Color.White);

            Drawable.DrawAll();

            Raylib.EndTextureMode();

            Raylib.BeginDrawing();
            if (TransparentWindow) Raylib.ClearBackground(Color.Blank);
            //Dunno why, but it renders upside down, so I flip it here
            Raylib.DrawTexturePro(RenderTexture.Texture, new Rectangle(0f,0f,WindowX,-WindowY), new Rectangle(0,0,WindowX*WindowScale,WindowY*WindowScale), Vector2.Zero,0f,Color.White);
            Raylib.EndDrawing();
        }

        Client?.Disconnect();
        Server?.Disconnect();

        Drawable.DisposeAll();
        Raylib.CloseWindow();
        Config.SaveFile();
    }
}