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

public class SlowMechanic:AbstractGameMechanic
{
	private float _timer = 0f;
	private bool _initialized;
	
	private Trap _trap;
	private SlowMechanicData _data;
	private Enemy _enemy;
	private float _oldMovementSpeed;
	
	public void setData(SlowMechanicData data)
	{
		setData(data, null);
	}
	
	public void setData(SlowMechanicData data, Trap trap)
	{
		if (_initialized) return;
		_trap = trap;
		_data = data;
		_timer = _data.slowTime;
		_initialized = true;
	}
	
	void Start()
	{
		_enemy = gameObject.GetComponent<Enemy>();
		if (_enemy != null)
		{
			_oldMovementSpeed = _enemy.movementSpeed;
			_enemy.movementSpeed *= _data.slowInPercentage;
		}
	}
	
	void Update()
	{
		if (_trap != null && !_trap.isPlaced()) return;
		
		if (_enemy == null)
		{
			for (int i = 0 ; i < getTargetsInRange().Count; i++)
			{
				addSlow(getTargetsInRange()[i]);
			}
		}
		else
		{
			if (_timer <= 0)
			{
				if (_enemy != null)
				{
					_enemy.movementSpeed = _oldMovementSpeed;
					Destroy(this);
				}
			}
			else
			{
				_timer -= Time.deltaTime * TimeScale.TIME;
			}
		}
	}
	
	private void addSlow(Enemy enemy)
	{
		SlowMechanic slow = enemy.gameObject.GetSafeComponent<SlowMechanic>();
		slow.setData(_data);
	}
	
	private List<Enemy> getTargetsInRange()
	{
		List<Enemy> target = new List<Enemy>();
		float distance = _data.slowRange;
		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;
	}
	
	void OnDrawGizmos()
	{
		if (!debug && _enemy != null) return;
		Gizmos.color = Color.cyan;
		Gizmos.DrawWireSphere(transform.position, _data.slowRange);
	}
}