using com.jbrettob.traps;
using UnityEngine;
using com.jbrettob;
using com.jbrettob.data.vo.items.mechanics;
using com.jbrettob.enemies;
using System.Collections.Generic;

public class DamageOverTimeMechanic:AbstractGameMechanic
{
	private Trap _trap;
	[SerializeField]
	private float _timer = 0f;
	private bool _initialized;
	[SerializeField]
	private Enemy _enemy;
	[SerializeField]
	private DamageOverTimeMechanicData _data;
	[SerializeField]
	private AmmoMechanic _ammoMechanic;
	
	public void setData(DamageOverTimeMechanicData data)
	{
		setData(data, null);
	}
	
	public void setData(DamageOverTimeMechanicData data, Trap trap)
	{
		if (_initialized) return;
		_trap = trap;
		_data = data;
		_timer = 1;
		_initialized = true;
	}
	
	void Start()
	{
		_enemy = gameObject.GetComponent<Enemy>();
		if (_enemy != null)
		{
			Destroy (this, _data.time);
		}
		else
		{
			_ammoMechanic = _trap.GetComponent<AmmoMechanic>();
		}
	}
	
	void Update()
	{
		if (_trap != null && !_trap.isPlaced()) return;
		if (_ammoMechanic != null && _ammoMechanic.ammo <= 0) return;
		
		bool attacked = false;
		
		if (_enemy == null)
		{
			if (_timer <= 0)
			{
				for (int i = 0 ; i < getTargetsInRange().Count; i++)
				{
					addDot(getTargetsInRange()[i]);
					attacked = true;
				}
				
				if (attacked && _ammoMechanic != null)
				{
					_ammoMechanic.ammo--;
				}
				_timer = 1;
			}
			else
			{
				_timer -= Time.deltaTime * TimeScale.TIME;
			}
		}
		else
		{
			if (_timer <= 0)
			{
				if (_enemy != null)
				{
					_enemy.hit(_data.damage);
				}
				_timer = 1;
			}
			else
			{
				_timer -= Time.deltaTime * TimeScale.TIME;
			}
		}
	}
	
	private List<Enemy> getTargetsInRange()
	{
		List<Enemy> target = new List<Enemy>();
		float distance = +_data.attackRange;
		float tempDistance;
		
		for (int i = 0; i < SpawnManager.getInstance().enemies.Count; i++)
		{
			tempDistance = Vector3.Distance(gameObject.transform.position, SpawnManager.getInstance().enemies[i].transform.position);
			if (tempDistance < distance)
			{
				target.Add(SpawnManager.getInstance().enemies[i]);
			}
		}
		
		return target;
	}
	
	private void addDot(Enemy enemy)
	{
		if (_trap.audio != null) _trap.audio.Play();
		enemy.hit(_data.damage);
	}
	
	public AmmoMechanic ammoMechanic
	{
		get { return _ammoMechanic; }
	}
	
	void OnDrawGizmos()
	{
		if (!debug && _enemy != null) return;
		Gizmos.color = Color.red;
		Gizmos.DrawWireSphere(transform.position, _data.attackRange);
	}
}