using System;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Content;
using Microsoft.Xna.Framework.Graphics;

namespace MonoGameLibrary;

public class Core : Game {
    internal static Core s_instance;

    public static Core Instance => s_instance;

    public static GraphicsDeviceManager Graphics { get; set; }
    public static new GraphicsDevice GraphicsDevice { get; private set; }
    public static SpriteBatch SpriteBatch { get; private set; }
    public static new ContentManager Content { get; private set; }

    public Core(string title, int width, int height, bool fullscreen) {
        if (s_instance != null) {
            throw new InvalidOperationException($"Only a single Core instance can be created");
        }

        s_instance = this;

        Graphics = new GraphicsDeviceManager(this);

        Graphics.PreferredBackBufferWidth = width;
        Graphics.PreferredBackBufferHeight = height;
        Graphics.IsFullScreen = fullscreen;

        Graphics.ApplyChanges();

        Window.Title = title;

        Content = base.Content;

        Content.RootDirectory = "Content";

        IsMouseVisible = true;
    }

    protected override void Initialize() {
        base.Initialize();

        GraphicsDevice = base.GraphicsDevice;
        SpriteBatch = new SpriteBatch(GraphicsDevice);
    }
}