using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
using System;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;

public class GameController : MonoBehaviour {

    public bool created = false;
    public int currentFloor;
    public int nextFloor = -99;
    public Text floor;
    public Scene interStarstage;
    public GameController instance;
    public List<string> Scenes = new List<string>();
    public int NextLevel;
    public int firstLevel = 4;


   
    void Awake()
    {
        Application.targetFrameRate = 60;
        if (instance != null)
        {
            Destroy(gameObject);
        }
        else
        {
            instance = this;
            DontDestroyOnLoad(gameObject);
            
        }
    }

    // Use this for initialization
    void Start()
    {
        StartCoroutine(ListScenePopulator());
        

        if (File.Exists(Application.persistentDataPath + "/ThePit.sav")) {
            Load();
        }
        else
        {
            NextLevel = firstLevel;
        }
    }

    // Update is called once per frame
    void Update () {
        currentFloor = nextFloor;       

        //Return the current Active Scene in order to get the current Scene's name
        interStarstage = SceneManager.GetActiveScene();

        //Check if the current Active Scene's name is your first Scene
        if (interStarstage.name == "InterStage")
        {
            
        }

       
    }

    public void LoadScene()
    {
        SceneManager.LoadScene(NextLevel, LoadSceneMode.Single);
    }

    IEnumerator ListScenePopulator()
    {
        for (int i = 0; i < SceneManager.sceneCountInBuildSettings; ++i)
        {
            string name = System.IO.Path.GetFileNameWithoutExtension(SceneUtility.GetScenePathByBuildIndex(i));
            Scenes.Add(name);
        }

        yield return Scenes;
    }


    public void Save()
    {
        BinaryFormatter bf = new BinaryFormatter();

        FileStream dataFile = File.Open(Application.persistentDataPath + "/ThePit.sav", FileMode.OpenOrCreate);

        StoredData sd = new StoredData();
        sd.NextLevel = NextLevel;

        bf.Serialize(dataFile, sd);

        dataFile.Close();
    }

    public void Load()
    {
        BinaryFormatter bf = new BinaryFormatter();

        FileStream dataFile = File.Open(Application.persistentDataPath + "/ThePit.sav", FileMode.OpenOrCreate);
        StoredData sd = (StoredData)bf.Deserialize(dataFile);

        NextLevel = sd.NextLevel;
        dataFile.Close();
    }

    public void Delete()
    {
        if (File.Exists(Application.persistentDataPath + "/ThePit.sav"))
        {
            File.Delete(Application.persistentDataPath + "/ThePit.sav");
        }
        SceneManager.LoadScene(firstLevel, LoadSceneMode.Single);
    }
}


[Serializable]
class StoredData
{
   public int NextLevel;
}