using System.Runtime.CompilerServices;

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;

using Syntriax.Engine.Core;

namespace Syntriax.Engine.Integration.MonoGame;

public static class EngineConverterExtensions
{
    public readonly static Vector2D screenScale = Vector2D.Down + Vector2D.Right;

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static UniverseTime ToEngineTime(this GameTime gameTime) => new(gameTime.TotalGameTime, gameTime.ElapsedGameTime);

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static Vector2D ToVector2D(this Vector2 vector) => new(vector.X, vector.Y);

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static Color ToColor(this ColorRGBA rgba) => new(rgba.R, rgba.G, rgba.B, rgba.A);

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static Vector2D ToVector2D(this Point point) => new(point.X, point.Y);

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static Vector2 ToVector2(this Vector2D vector) => new(vector.X, vector.Y);

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static Vector2 ToDisplayVector2(this Vector2D vector) => vector.Scale(screenScale).ToVector2();

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static Vector2D ApplyDisplayScale(this Vector2D vector) => vector.Scale(screenScale);

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static Rectangle ToDisplayRectangle(this Rectangle rectangle, DisplayMode displayMode) => new()
    {
        X = rectangle.X,
        Y = displayMode.Height - rectangle.Y - rectangle.Height,
        Width = rectangle.Width,
        Height = rectangle.Height
    };

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static Rectangle ToRectangle(this AABB aabb) => new()
    {
        X = (int)(aabb.LowerBoundary.X * screenScale.X),
        Y = (int)(aabb.LowerBoundary.Y * screenScale.Y),
        Width = (int)(aabb.UpperBoundary.X - aabb.LowerBoundary.X),
        Height = (int)(aabb.UpperBoundary.Y - aabb.LowerBoundary.Y)
    };
}