using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
using System.Linq;
using System.Text.RegularExpressions;
using System.Collections.Generic;



public class MenuSetup : MonoBehaviour {


    //Creates buttons when loaded
    public GameObject ChapterButtons;
    GameObject ChapterButtonClone;
    //Button Text for chapters
    Text ButtonText;




    // Use this for initialization
    void Start()
    {


        //sceneCount Converts the Total amount of scenes into a number
        int sceneCount = UnityEngine.SceneManagement.SceneManager.sceneCountInBuildSettings;
        List<string> scenes = new List<string>(new string[sceneCount]);
        int[] sceneLoader = new int[sceneCount];

        //int [] sceneLoader = new int[sceneCount];


        //Converts Scene list into String list
        for (int i = 0; i < sceneCount; i++)
        {
            scenes[i] = System.IO.Path.GetFileNameWithoutExtension(UnityEngine.SceneManagement.SceneUtility.GetScenePathByBuildIndex(i));

                //print("Before: " + scenes[i]);
        }

        //Sorts String into a list
        //Calls the function PadNumbers to So it can Sort naturaly (Example: 3, 11, 24 - instead of : 11, 24, 3)
        var sortedList = scenes.OrderBy(x => PadNumbers(x)).ToList();



        //Counts through the list
        for (int i = 0; i < sceneCount;i++)
        {



            //Every Scene that has the Keyword, Creates Buttons/hyperText
            if (sortedList[i].StartsWith("Chapter"))
            {


                ChapterButtonClone = Instantiate(ChapterButtons) as GameObject;
                ChapterButtonClone.transform.SetParent(GameObject.Find("MainMenuPanel").transform);
                ChapterButtonClone.transform.localScale = new Vector3(1, 1, 1);
                ButtonText = ChapterButtonClone.transform.Find("Text").GetComponent<Text>();
                ChapterButtonClone.GetComponent<Button>().onClick.AddListener(() => SceneManager.LoadScene(test));
                ChapterButtonClone.name = sortedList[i];
                ButtonText.text = sortedList[i];



            }

        }


    }

    //Function used to sort the list "naturally" correctly
    public string PadNumbers(string sortedList)
    {
        return Regex.Replace(sortedList, "[0-9]+", match => match.Value.PadLeft(10, '0'));
    }



}