using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Events;
using System.Collections;
using System.Collections.Generic;

public class Shop : MonoBehaviour
{
	public enum State
	{
		Lock,
		Sale,
		Bought
	}

	public CarInfo Target
	{
		get
		{
			return m_Target;
		}

		set
		{
			if(m_Target) Destroy(m_Target.gameObject);
			if(!value) return;

			State state = (State) PlayerPrefsExt.IntValue[value.Id];
//
//			if(state == State.Lock)
//			{
//				m_Target = GameObject.Instantiate(value.LockedCar, transform.position, transform.rotation) as CarInfo;
//				m_Target.Id = value.Id;
//
//				Price.text = "LOCK";
//
//				OnLockedCar.Invoke();
//
//				return;
//			}

			//OnUnlockedCar.Invoke();

 			m_Target = GameObject.Instantiate(value, transform.position, transform.rotation) as CarInfo;
			m_Target.Id = value.Id;

			var controller = m_Target.GetComponent<RCCCarControllerV2>();

			if(controller) controller.enabled = false;

			if(Info) Info.Target = m_Target;

			if(state == State.Bought)
				OnBoughtCar.Invoke();
			else
				OnSaleCar.Invoke();
		}
	}
	private CarInfo m_Target;

	public CarList CarsList;

	[Header("UI")]
	public Text Price;

	[Header("Events")]
	public UnityEvent OnBoughtCar;
	public UnityEvent OnSaleCar;
	public UnityEvent OnNoMoney;
//	public UnityEvent OnUnlockedCar;
//	public UnityEvent OnLockedCar;

	[Header("Other")]
	public CarInfoVisualizer Info;
	//public Garage GarageScript;

	void Start()
	{
		//PlayerPrefs.DeleteAll();
			if(!Info) Info = GameObject.FindObjectOfType<CarInfoVisualizer>();
		if(!CarsList) CarsList = GameObject.FindObjectOfType<CarList>();
		if(!IsBought(CarsList[0])) PlayerPrefsExt.IntValue[CarsList[0].Id] = 2;
		Next();
	}

	public void Next()
	{
		var index = -1;

		if(Target)
			index = GetCurrentIndex();

		index++;

		if(index == CarsList.Cars.Count) index = 0;

		Target = CarsList.Cars[index];
	}

	public void Prev()
	{
		var index = -1;

		if(Target)
			index = GetCurrentIndex();

		index--;
		if(index < 0) index = CarsList.Cars.Count - 1;

		Target = CarsList.Cars[index];
	}

	public void Reload()
	{
		if(Target) Target = CarsList.Cars[GetCurrentIndex()];
	}

	public void Buy()
	{
		Buy (Target.Id);
	}

	public void Buy(CarInfo car)
	{
		Buy (car.Id);
	}

	public void Buy(string carId)
	{
		if(Money.Remove(CarsList[carId].Price))
		{
			PlayerPrefsExt.IntValue[carId] = 2;
			Reload();
		}
		else
		{
			OnNoMoney.Invoke();
		}
	}

	public void Sell()
	{
		Sell (Target.Id);
	}

	public void Sell(string id)
	{
//		var car = CarsList[id];
//
//		Money.Add(car.Price / 2);
//		PlayerPrefsExt.IntValue[car.Id] = 1;
//		Reload();
//		GarageScript.Remove(id);
	}

	public void Unlock()
	{
		if(UnlockOperation())
		{
			PlayerPrefsExt.IntValue[Target.Id] = 1;
			Reload();
		}
	}

	public void Select()
	{
		PlayerPrefsExt.StringValue["Current"] = Target.Id;
	}

	public int GetCurrentIndex()
	{
		return CarsList.Cars.FindIndex(a => a.Id == Target.Id);
	}

	public void Clear()
	{
		Target = null;
	}

	public bool IsBought(CarInfo car)
	{
		return IsBought(car.Id);
	}

	public bool IsBought(string carId)
	{
		return PlayerPrefsExt.IntValue[carId, 0] == 2;
	}

	protected bool UnlockOperation()
	{
		return true;
	}
}