using AlienAttack.MonoGame.Things.Bullets;
using AlienAttack.MonoGame.Things.Items;
using AlienAttack.MonoGame.Things.Weapons;
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using System.Collections.Generic;

namespace AlienAttack.MonoGame.Things.Enemies;

public class GreenEnemy : EnemyShip
{
    //Enemy01_Green_Frame_1_png_processed

    protected ICollection<IWeapon> ActiveWeapons = [];
    protected int FireThreshold => 20;
    protected int CurrentFireThreshold { get; set; } = 20;
    protected override int Health { get; set; } = 5;

    public GreenEnemy(int x, int y) : base(x, y)
    {
        BoundBox = new Rectangle(0, 0, 64, 64);
        YVelocity = 1;
        ActiveWeapons.Add(new Minigun());
        //ActiveWeapons.Add(new FastMinigun());
    }

    public override void Draw(SpriteDrawArgs args)
    {
        Texture2D texture = args.Content.Load<Texture2D>(@$"Sprites\Enemy01_Green_Frame_1_png_processed");
        SpriteEffects spriteEffects = SpriteEffects.None;

        args.SpriteBatch.Draw(texture, Position, null, DrawColor, 0, new Vector2(0, 0), 1, spriteEffects, 1);

        base.Draw(args);
    }

    protected override void TryFire(SpriteUpdateContext context)
    {
        if (CurrentFireThreshold > 0)
        {
            CurrentFireThreshold--;
        }

        if (CurrentFireThreshold == 0 && context.Random.Next(0, 100) == 1)
        {
            float originX = XPosition + (BoundBox.Width / 2) - (7 / 2);

            context.SpawnSprite(new MinigunBulletSmall(originX - 9, YPosition + BoundBox.Height - 12, 0, 2 + YVelocity, this));
            context.SpawnSprite(new MinigunBulletSmall(originX + 14, YPosition + BoundBox.Height - 12, 0, 2 + YVelocity, this));

            CurrentFireThreshold = FireThreshold;

            context.AudioManager.PlayEnemyFire();
        }
    }

    protected override void OnKilled(SpriteUpdateContext context)
    {
        int itemXPosition = (int)XPosition + 32 - Item.Width / 2;
        int itemYPosition = (int)YPosition + 32 - Item.Height / 2;

        switch (context.Random.Next(0, 5))
        {
            case 0:
                context.SpawnSprite(new Health(itemXPosition, itemYPosition));
                break;
            case 1:
                context.SpawnSprite(new Shields(itemXPosition, itemYPosition));
                break;
            case 2:
                context.SpawnSprite(new Ammo(itemXPosition, itemYPosition));
                break;
            case 3:
                context.SpawnSprite(new Energy(itemXPosition, itemYPosition));
                break;
            case 4:
                context.SpawnSprite(new Rockets(itemXPosition, itemYPosition));
                break;
        }
    }
}