using UnityEngine;
using System.Collections;

public class SwapManager
{

	public const float PREPARING_SWAP_DURATION = 3f;
	public const float SWAP_CD = 3f;

	public int targetSwapId;
	public bool isPreparingSwap;
	public float preparingSwapStartTime;
	public bool requestedSwap;
	public float lastSwapTime;

	private Craft craft;

	public SwapManager(Craft craft)
	{
		this.craft = craft;
		lastSwapTime = GameTime.time;
	}

	public void PrepareSwap(int targetSwapId)
	{
		this.targetSwapId = targetSwapId;
		isPreparingSwap = true;
		preparingSwapStartTime = GameTime.time;
		craft.StopMove();
	}
	
	public float GetPreparingSwapTime()
	{
		if(preparingSwapStartTime < 0)
			return 0;
		return Mathf.Min(GameTime.time - preparingSwapStartTime, PREPARING_SWAP_DURATION);
	}
	
	public bool IsReadySwap()
	{
		return GetPreparingSwapTime() == PREPARING_SWAP_DURATION;
	}
	
	public void AbortSwap()
	{
		if(requestedSwap)
			return;
		
		preparingSwapStartTime = -1f;
		isPreparingSwap = false;
		craft.GetHeadBar().HideSpell();
	}
	
	public int GetTargetSwapId()
	{
		return targetSwapId;
	}
	
	public void RequestedSwap()
	{
		preparingSwapStartTime = -1f;
		requestedSwap = true;
	}
	
	public void Swap(Craft newCraft, int craftId, CraftEquipModify equipModify)
	{
		if(craft.IsDead())
			return;

		lastSwapTime = GameTime.time;
		
		craft.GetHeadBar().HideSpell();
		isPreparingSwap = false;
		requestedSwap = false;

		craft.SetEquipModify (equipModify);
		craft.SetCraftId (craftId);
		
		craft.bodyTrans.SetParent(null);
		GameObject.Destroy(craft.bodyTrans.gameObject);
		
		Transform newBody = newCraft.transform.Find("Body");
		newBody.SetParent(craft.transform);
		newBody.localPosition = Vector3.zero;
		newBody.localScale = new Vector3(1f, 1f, 1f);
		
		craft.textureArr = newCraft.textureArr;
		
		GameObject.Destroy(newCraft.gameObject);
		
		craft.Init();
		
		craft.team = craft.team;

		craft.SwapComplete();
	}


	public float GetSwapCoolDown()
	{
		return Mathf.Min(GameTime.time - lastSwapTime, SWAP_CD);
	}
}