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

public enum States
{
    Menu = 0,
    LoadingScene = 5,
    LoadingVideo = 10,
    RaceSetup = 15,
    Race = 20
}

public class GameManager : MonoBehaviour
{

    private static GameManager _instance;
    public List<Sprite> Transports
    {
        get
        {
            return new List<Sprite> {
                Resources.Load<Sprite>("Images/metro_80x80"),
                Resources.Load<Sprite>("Images/bus_80x80"),
				Resources.Load<Sprite>("Images/monocycle_80x80"),
                Resources.Load<Sprite>("Images/voiture_80x80"),
                Resources.Load<Sprite>("Images/lapetiterennes_80x80"),
                Resources.Load<Sprite>("Images/toutenvelo_80x80"),
				Resources.Load<Sprite>("Images/deambulateur_80x80"),
                Resources.Load<Sprite>("Images/velopiste_80x80")
            };
        }
    }

	public List<Sprite> Transports320
	{
		get
		{
			return new List<Sprite> {
				Resources.Load<Sprite>("Images/metro_320x320"),
				Resources.Load<Sprite>("Images/bus_320x320"),
				Resources.Load<Sprite>("Images/monocycle_320x320"),
				Resources.Load<Sprite>("Images/voiture_320x320"),
				Resources.Load<Sprite>("Images/lapetiterennes_320x320"),
				Resources.Load<Sprite>("Images/toutenvelo_320x320"),
				Resources.Load<Sprite>("Images/deambulateur_320x320"),
				Resources.Load<Sprite>("Images/velopiste_320x320")
			};
		}
	}
    public string GameSceneName = "GameScene";
    public string MenuSceneName = "Menus";


    public string XAxis = "Horizontal";
    public string YAxis = "Vertical";
    public string Submit = "Submit";
    public string Cancel = "Cancel";
    public string XAxisP1 = "HorizontalP1";
    public string YAxisP1 = "VerticalP1";
    public string SubmitP1 = "SubmitP1";
    public string CancelP1 = "CancelP1";
    public string XAxisP2 = "HorizontalP2";
    public string YAxisP2 = "VerticalP2";
    public string SubmitP2 = "SubmitP2";
    public string CancelP2 = "CancelP2";

//	public string XAxis = KeyCode.UpArrow;
//	public string YAxis = KeyCode.DownArrow;
//	public string Submit = KeyCode.Return;
//	public string Cancel = KeyCode.RightControl;
//	public string XAxisP1 = KeyCode.UpArrow;
//	public string YAxisP1 = KeyCode.DownArrow;
//	public string SubmitP1 = KeyCode.Return;
//	public string CancelP1 = KeyCode.RightControl;
//	public string XAxisP2 = KeyCode.Z;
//	public string YAxisP2 = KeyCode.S;
//	public string SubmitP2 = KeyCode.Space;
//	public string CancelP2 = KeyCode.LeftControl;

    //public static GameManager Instance {get {return _instance; } }
    public static GameManager Instance
    {
        get
        {
            return _instance ?? (_instance = new GameObject("GameManager").AddComponent<GameManager>());
        }
    }

    private HUDManager hm;
    private BikeManager bm1;
    private BikeManager bm2;

    private States _status;
    public States Status { get { return _status; } }

	public HighscoreEntry EntryP1 = new HighscoreEntry { time = new TimeSpan(0, 0, 0, 28, 20) };
	public HighscoreEntry EntryP2 = new HighscoreEntry { time = new TimeSpan(0, 0, 0, 40, 20) };

    // Skins of the two players
    private int[] _skins = new int[2];

    private ConfigurationLoader conf;

	private float startTime;

    private void Awake()
    {
        // Singleton
        if (_instance != null && _instance != this)
        {
            Debug.Log("WARNING: Other instance of GameManager found.");
            Destroy(gameObject);
            return;
        }

        _instance = this;

        // Don't destroy when loading new scene
        DontDestroyOnLoad(transform.gameObject);

        conf = new ConfigurationLoader();

        _status = States.Menu;

		SceneManager.LoadScene ("Menus");
        // TODO: Load Menu
		foreach(var j in Input.GetJoystickNames()) Debug.Log(j);
    }

    private void Start()
    {
        // Quick Check
        if (hm == null)
            Debug.Log("ERROR: HUDManager not registered.");
        if (bm1 == null)
            Debug.Log("ERROR: BikeManager P1 not registered.");
        if (bm2 == null)
            Debug.Log("ERROR: BikeManager P2 not registered.");
		var temp = HighscoresManager.Current;
    }

    public void RegisterBike(BikeManager bike, int bikeID)
    {
        if (bikeID == 0)
            bm1 = bike;
        if (bikeID == 1)
            bm2 = bike;
    }

    public void RegisterHUD(HUDManager hud)
    {
        hm = hud;
    }

    public BikeManager GetBikeManager(int bikeID)
    {
        if (bikeID == 0)
            return bm1;
        if (bikeID == 1)
            return bm2;
        return null;
    }

    public void Hello()
    {
        Debug.Log("Hello!");
    }

    public float GetRaceDistance()
    {
        return conf.distance;
    }

    public float GetRaceNormalTime()
    {
        return conf.normalTime;
    }

    public float GetBikeWheelDiameter(int bikeID)
    {
        return conf.diameters[bikeID];
    }

    public int GetSensorsCount(int bikeID)
    {
        return conf.sensors[bikeID];
    }

    public float GetVideoEnd(int videoID)
    {
        return conf.videoEnds[videoID];
    }

    public void SetSkins(int player1, int player2)
    {
        _skins[0] = player1;
        _skins[1] = player2;
    }

    public int GetSkins(int playerID)
    {
        return _skins[playerID];
    }

	public int GetFirst()
	{
		if (bm1.GetDistance () > bm2.GetDistance ())
			return 0;
		if (bm1.GetDistance () < bm2.GetDistance ())
			return 1;
		return -1;
	}

    // TODO: Remove once menus are ok
    void Update()
    {
		if (_status == States.LoadingVideo) {
			Debug.Log (bm1.LoadingComplete () + " " + bm2.LoadingComplete ());
			if (bm1.LoadingComplete () && bm2.LoadingComplete ()) {
				Debug.Log ("Videos are set up and ready to go!");
				_status = States.RaceSetup;
				StartCoroutine (SetupRace ());
			}
		} else if (_status == States.Race) {
			if (bm1.GetProgress () >= 1 && ! bm1.finished) {
				bm1.finished = true;
				bm1.finishTime = GetChrono ();
				StartCoroutine(PlayerFinished(0));
			}
			if (bm2.GetProgress () >= 1 && ! bm2.finished) {
				bm2.finished = true;
				bm2.finishTime = GetChrono ();
				StartCoroutine(PlayerFinished(1));
			}
		}
    }

    public void LaunchRace()
    {
        _status = States.LoadingScene;
        StartCoroutine(LoadGameScene());
    }

    public void DisplayMenu()
    {
        _status = States.Menu;
        StartCoroutine(LoadMenuScene());
    }

    void OnLevelFinishedLoading(Scene scene, LoadSceneMode mode)
    {
        if (_status == States.LoadingScene)
        {
            Debug.Log("Loading videos");
            _status = States.LoadingVideo;
        }
    }

	public float GetChrono() {
		return Time.time - startTime;
	}

    void OnEnable()
    {
        SceneManager.sceneLoaded += OnLevelFinishedLoading;
    }

    void OnDisable()
    {
        SceneManager.sceneLoaded -= OnLevelFinishedLoading;
    }

    IEnumerator SetupRace()
    {
        hm.loadingScreens.SetActive(false);
        hm.SetMessageActive(false);
        // Timer
        //yield return new WaitForSeconds(3f);
        hm.SetMessageActive(true);
        hm.SetMessage("PRETS ?");
        // Timer
        yield return new WaitForSeconds(3f);
        hm.SetMessage("PEDALEZ !");
		startTime = Time.time;
		hm.SetActiveChrono (true);
        _status = States.Race;
        // Timer
        yield return new WaitForSeconds(1f);
        hm.SetMessageActive(false);
    }

	IEnumerator PlayerFinished(int playerID)
	{
		int winner = GetFirst ();
		hm.SetMessageActive(true, playerID);
		if (winner == playerID) {
			hm.SetMessage ("Victoire !", playerID);
		} else {
			hm.SetMessage ("Fini !", playerID);
		}
		// Timer
		yield return new WaitForSeconds(3f);

		hm.SetMessageActive(false, playerID);

		yield return new WaitForSeconds(2f);

		if (playerID == 0) {
			EntryP1.time = TimeSpan.FromSeconds (bm1.finishTime);
			EntryP1.transport = GetSkins (0);
		} else {
			EntryP2.time = TimeSpan.FromSeconds(bm2.finishTime);
			EntryP2.transport = GetSkins (1);
		}
		
		hm.SetHighScore (playerID);
	}


    IEnumerator LoadGameScene()
    {
        return LoadScene(GameSceneName);
    }

    IEnumerator LoadMenuScene()
    {
        return LoadScene(MenuSceneName);
    }

    IEnumerator LoadScene(string sceneName)
    {
        AsyncOperation asyncLoad = SceneManager.LoadSceneAsync(sceneName);
        while (!asyncLoad.isDone)
            yield return null;
    }


}