using Cirno.Scripts.Actors;
using Cirno.Scripts.Components;
using Cirno.Scripts.Resources;

namespace Cirno.Scripts.AttackPatterns;

using Godot;

[GlobalClass]
public partial class TargetedPattern : AttackPattern
{
    [Export] public PackedScene BulletScene;
    
    [Export] private float bulletSpeed = 5f;
    [Export] private float duration = 3f;
    [Export] private float burstInterval = 0.5f;
    [Export] private int bulletsPerShot = 1;
    [Export] private float spread = 0f;
    [Export] private BulletOwner owner = BulletOwner.Enemy;
    [Export] private BulletCreationModifier modifier;

    public override IPatternMachine MakeMachine(Node2D parent)
    {
        return new TargetedPatternMachine(this, parent);
    }

    public class TargetedPatternMachine(TargetedPattern pattern, Node2D parent) : IPatternMachine
    {
        public Node2D Parent => parent;
        
        private double timer;
        private double burstTimer;
        private BulletSpawner spawner;
        //private Node2D player;
    
        public void Start()
        {
            timer = 0;
            burstTimer = 0;
            spawner = Parent.GetNode<BulletSpawner>("BulletSpawner");
        
        }

        public void UpdatePattern(double delta)
        {
            timer += delta;
            burstTimer += delta;
            if (timer < pattern.duration && burstTimer >= pattern.burstInterval && GameManager.Instance.PlayerPosition.HasValue)
            {
                spawner.SpawnTargetedBullet(Parent.GlobalPosition, GameManager.Instance.PlayerPosition.Value, pattern.bulletSpeed, pattern.owner, pattern.BulletScene, pattern.bulletsPerShot, pattern.spread, pattern.modifier);
                burstTimer = 0;
            }
        }

        public bool IsComplete()
        {
            return timer >= pattern.duration;
        }
    }
}