using System;
using System.Collections.Generic;
using Meta;
using Player;
using Unity.Collections;
using UnityEngine;
using Utils;

namespace Ai
{
    public class AiController : MonoSingleton<AiController> {
    
        [ReadOnly] public readonly List<TargetingEnemy> TargetingEnemies = new List<TargetingEnemy>();
        public MainCharacter Player { get; set; }
        public event Action StageCompletedEvent;
        public event Action<Vector3> EnemyDiedEvent;

        public Vector3 PlayerPosition
        {
            get { return Player != null ? Player.transform.position : Vector3.zero; }
        }

        public void EnemyDied(Vector3 position)
        {
            if (EnemyDiedEvent != null)
                EnemyDiedEvent(position);
            if (TargetingEnemies.Count <= 0)
            {
                if (StageCompletedEvent != null)
                    StageCompletedEvent();
                
                PlayerResources.Instance.Repaint();
                BulletManager.Instance.ShutDown();
            }
        }

        public void Update()
        {
            foreach (var targetingEnemy in TargetingEnemies)
            {
                targetingEnemy.Proceed(Player.IsDead ? targetingEnemy.transform.position : PlayerPosition);
                if (Player.IsDead) continue;
                targetingEnemy.SetGuns(PlayerPosition);
            }
        }
    }
}