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

public class GameManager : MonoBehaviour {
	//Objects
	public List<GameObject> prefabs = new List<GameObject>();
	public int[] tankCount;
	private int identificator;
	public List<GameObject> objects = new List<GameObject>();

	//Play checks
	private float timer = 3f;
	public float Timer {
		get{return timer;}
	}
	private bool isPlaying;
	public bool IsPlaying
	{
		get {return isPlaying;}
	}
	private bool enterTheBattle;
	public bool EnterTheBattle
	{
		get{ return enterTheBattle;}
	}

	private int blueTeam;
	public int BlueTeam
	{
		get{return blueTeam;}
	}
	private int redTeam;
	public int RedTeam
	{
		get{return redTeam;}
	}

	//UI
	public Text timerText;
	public GameObject playButton;
	public GameObject tankButtons;

	public bool endBattle;
	public GameObject endBattleTable;
	public Text text;
	private int money;
	public GameObject spawn;

	public GameObject camButton;
	public GameObject cam;
	private bool cameresActive;
	public Camera[] cameras;
	private int camS;
	void Start()
	{
		endBattleTable.SetActive(false);
		tankCount[0] = PlayerPrefs.GetInt ("Leopard");
		tankCount[1] = PlayerPrefs.GetInt ("Artillery");
	}

	public void IdentificationTank(GameObject tmp)
	{
		objects.Add(tmp);
		tmp = null;
	}

	public void CamerasButton()
	{
		cameresActive = !cameresActive;
	}

	public void CheckTankButton(int i)
	{
		identificator = i;
	}

	public void AddRed(){	redTeam++;	}
	public void AddBlue(){	blueTeam++;	}

	public void RemoveRed(){	redTeam--;	}
	public void RemoveBlue(){	blueTeam--;	}

	public void TankCameras(int count)
	{
		cameras[camS].enabled = false;
		if(camS + count < 0)
			camS = objects.Count - 1;
		else if(camS + count > objects.Count - 2)
			camS = 0;
		else
			camS += count;

		cameras[camS].enabled = true;
	}

	// Update is called once per frame
	void Update ()
	{
		cam.SetActive( cameresActive);

		if(camS > objects.Count - 1)
			camS = objects.Count - 1;

		if(endBattle && endBattleTable.activeSelf == false)EndBattle();

		if(isPlaying)
			camButton.SetActive(true);
		else
			camButton.SetActive(false);

		if(!isPlaying && !enterTheBattle && tankCount[identificator] > 0)
		{
			if(Input.GetKeyDown(KeyCode.Mouse0))
			{
				RaycastHit hit;
				Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
				if (Physics.Raycast(ray, out hit, 10000.0f))
				{
					if(hit.collider.tag == "spawnPoint" && tankCount[identificator] > 0)
					{
						Instantiate(prefabs[identificator], new Vector3(hit.point.x, hit.point.y + 0.5f, hit.point.z), Quaternion.identity);
						tankCount[identificator]--;
					}
				}
			}
		}

		if(timerText.enabled == true)
			timerText.text = "Time to battle: " + timer.ToString("0 sec.");

		if(enterTheBattle)
		{
			if(timer > 0)
				timer -= Time.deltaTime;
			else
			{
				tankButtons.SetActive(false);
				timerText.enabled = false;
				playButton.SetActive(false);
				isPlaying = true;
				enterTheBattle = false;
			}
		}
	}

	public void MenuButton()
	{
		PlayerPrefs.SetInt("AddMoney", money);
		SceneManager.LoadScene("Menu");
	}

	public void EndBattle()
	{
		Time.timeScale = 0;
		endBattleTable.SetActive(true);
		if(blueTeam > 0)
		{
			text.text = "Blue team is win!";
			money = 50;
		}
		else
		{
			text.text = "Red team is win!";
			money = 200;
		}
	}

	public void PlayButton()
	{
		Time.timeScale = 1;
		spawn.SetActive(false);
		enterTheBattle = true;
	}
}