using System.Runtime.InteropServices;
using System.Text;
using Engine.Renderer.Buffer;
using Engine.Renderer.Buffer.Vertex;
using Engine.Renderer.Shader;
using OpenTK.Graphics.OpenGL;
using OpenTK.Mathematics;
using OpenTK.Windowing.Common;
using OpenTK.Windowing.Desktop;
using Serilog;
using Serilog.Events;
using Serilog.Sinks.SystemConsole.Themes;

namespace Engine;

public sealed class Engine
{
    public Renderer.Renderer Renderer => _renderer;

    private readonly Window _window;
    private readonly Renderer.Renderer _renderer;
    private readonly ILogger _logger;

    public Engine(int width, int height, bool headless = false, string title = "")
    {
        var settings = new NativeWindowSettings
        {
            ClientSize = headless ? new Vector2i(1, 1) : new Vector2i(width, height),
            Title = title,
            StartVisible = !headless,
            APIVersion = new Version(4, 5),
            Profile = ContextProfile.Compatability
        };

        _window = new Window(this, new NativeWindow(settings), headless);
        _renderer = new Renderer.Renderer(width, height);

        Thread.CurrentThread.Name = "RendererThread";

        Log.Logger = new LoggerConfiguration()
            .MinimumLevel.Verbose()
            .Enrich.WithThreadName()
            .Enrich.WithThreadId()
            .Enrich.FromLogContext()
            .WriteTo.Console(
                outputTemplate:
                "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff}] [{Level:u3}] [{ThreadName,-15:l}:{ThreadId,-4:d4}] [{SourceContext:l}] {Message:lj}{NewLine}{Exception}",
                theme: AnsiConsoleTheme.Literate)
            .CreateLogger();

        _logger = Log.ForContext<Engine>();
    }

    public void Run()
    {
        GL.ClearColor(0.2f, 0.3f, 0.3f, 1.0f);

        GL.Viewport(0, 0, _window.Width, _window.Height);

        while (!_window.IsExiting)
        {

        }
    }
}