using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MonsterSpawners : MonoBehaviour, IUpdatable
{
    [SerializeField] private Vector2 timeToSpawn;
    float currentTimer = 0;
    [SerializeField] private List<GameObject> enemiesToSpawn;
    private List<HealthSystem> spawnedEnemies = new List<HealthSystem>();
    private UpdateManager updateManager;
    [HideInInspector]
    public bool stop = false;
    void Start()
    {
        ProgressController temp = transform.parent.GetComponent<ProgressController>();
        if (temp)
            temp.AddToUpdatables(gameObject);
        else
            Debug.LogError("No progress Controller, the spawner won't work");
        updateManager = GameObject.Find("UpdateManager").GetComponent<UpdateManager>();
        currentTimer = Random.Range(timeToSpawn.x, timeToSpawn.y);
    }

    public void KillAllSpawnedEnemies()
    {
        foreach(HealthSystem h in spawnedEnemies)
        {
            if (h != null) h.Die();
        }
    }

    public void StopSpawn() { 
        stop= true;
    }


    public void Updating()
    {
        if (!stop)
        {
            currentTimer -= Time.deltaTime;
            if (currentTimer <= 0)
            {
                GameObject t = Instantiate(enemiesToSpawn[Random.Range(0, enemiesToSpawn.Count)], transform.parent);
                t.transform.position = transform.position;
                IUpdatable[] u = t.GetComponents<IUpdatable>();
                spawnedEnemies.Add(t.GetComponent<HealthSystem>());
                foreach (IUpdatable i in u)
                {
                    updateManager.AddToList(i);
                }
                currentTimer = Random.Range(timeToSpawn.x, timeToSpawn.y);
            }
        }
    }
}