using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.IO;

public class SubtitleSystem : MonoBehaviour
{
    public TextAsset subtitleFile;
    private StreamReader reader;
    [SerializeField]
    public List<Subtitle> subList = new List<Subtitle>();
    public SubtitleManager subManager;
    public AudioSource aSource;
    private float playTime;
    int subtitleIndex = 0;
    int index;
    int count;
    public Animator ani_mate;
    public GameObject button;


    void Start()
    {
        button.SetActive(false);
        Debug.Log(subtitleFile.name.ToString());
        subtitleFile = Resources.Load(subtitleFile.name.ToString()) as TextAsset;
        if (subtitleFile == null)
        {
            subManager.showText("Error loading Subtitles File"); Debug.Log("Error Loading Subtitles File");
        }
        else { subManager.showText("I'm able to set subtitles"); Debug.Log("I'm able to set subtitles"); }

        GetText();
        subManager.hideText();
    }

    void Update()
    {
        if (aSource.isPlaying)
        {

            if (subtitleIndex < subList.Count)
            {
                Debug.Log(aSource.time * 1);
                var SourceTime = aSource.time * 1;
                if (SourceTime >= subList[subtitleIndex].timeStart && SourceTime < subList[subtitleIndex].timeStop)
                {
                    subManager.showText(subList[subtitleIndex].content);
                }
                if (SourceTime >= subList[subtitleIndex].timeStop)
                {
                    subManager.hideText();
                    subtitleIndex++;
                }
            }
            else
            {
                subtitleIndex = 0;
            }
        }
        else
        {
            subManager.hideText();
            button.SetActive(true);
            subtitleIndex = 0;
        }
    }

    float ParseTime(string time)
    {
        float tempTime = 0;
        float finalTime = 0;
        string[] times = time.Split(":"[0]);

        for (int i = 0; i < times.Length; i++)
        {
            tempTime = float.Parse(times[i]);
            if (i == 0)
            {
                if (tempTime >= 0)
                {
                    tempTime *= 3600;
                    finalTime += tempTime;
                    tempTime = 0;
                }
            }
            else if (i == 1)
            {
                if (tempTime >= 0)
                {
                    tempTime *= 60;
                    finalTime += tempTime;
                    tempTime = 0;
                }
            }
            else if (i == 2)
            {
                if (tempTime >= 0)
                {
                    finalTime += tempTime;
                    tempTime = 0;
                }
            }
        }
        
        return finalTime;
    }

    void GetText()
    {
        reader = new StreamReader(new MemoryStream(subtitleFile.bytes));
        while (!reader.EndOfStream)
        {
            var input = reader.ReadLine();
            if (!string.IsNullOrEmpty(input))
            {
                if (count == 0)
                {
                    Debug.Log(index.ToString());
                    subList.Add(new Subtitle());
                    count++;
                }
                else if (count == 1)
                {
                    string[] time = input.Split("/"[0]);
                    subList[index].timeStart = ParseTime(time[0]);
                    subList[index].timeStop = ParseTime(time[1]);
                    count++;
                }
                else if (count == 2)
                {
                    subList[index].content = input;
                    Debug.Log(subList[index].content);
                    count++;
                }
            }
            else
            {
                index++;
                count = 0;
            }
        }
    }
}