using AlienAttack.MonoGame.Things.Bullets;
using AlienAttack.MonoGame.Things.Explosions;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;

namespace AlienAttack.MonoGame.Things.Asteroids;

public abstract class Asteroid : MoveableSprite
{
    protected abstract int MaxHealth { get; }
    protected abstract string TextureName { get; }

    protected int Health { get; set; }
    protected float RotationSpeed { get; set; } = 1f;

    public Asteroid(int x, int y) : base(x, y)
    {
        Health = MaxHealth;
        RotationSpeed = 1f;
    }

    public override void Draw(SpriteDrawArgs args)
    {
        Texture2D texture = args.Textures.Get(TextureName);
        args.SpriteBatch.Draw(texture, Position, null, DrawColor, Rotation, Origin, Scale, SpriteEffects.None, 1);

        base.Draw(args);
    }

    public override sealed void Update(SpriteUpdateContext context)
    {
        base.Update(context);

        CollisionBox = new Rectangle((int)XPosition + BoundBox.X - (int)Origin.X, (int)YPosition + BoundBox.Y - (int)Origin.Y, BoundBox.Width, BoundBox.Height);

        if (Health <= 0)
        {
            IsDead = true;
            context.SpawnSprite(new Explosion((int)XPosition, (int)YPosition, XVelocity, YVelocity));
            context.AudioManager.PlayExplosion();
            return;
        }

        if (YPosition - Origin.Y > context.ViewTransform.ScreenHeight)
        {
            IsDead = true;
            return;
        }

        Rotation = MathHelper.WrapAngle(Rotation + RotationSpeed * context.DeltaTime);
    }

    public override void OnCollision(SpriteCollisionContext context)
    {
        if (context.Sprite is Bullet bullet && bullet.Owner is Player)
        {
            Health -= bullet.Damage;
        }

        if (context.Sprite is Player)
        {
            Health = 0;
        }
    }
}