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

public class ReadFromFileOld : MonoBehaviour
{
    //private void Start()
    //{
    //    string dir = Directory.GetCurrentDirectory();
    //    string reference = @"\Assets\Data_position\Walk1.txt";
    //    List<Vector3> vec = ReadFromTxtFile(dir + reference);
    //}

    //Reads from txt files
    public Tuple<List<Vector3>, List<Quaternion>> ReadFromTxtFile(string path)
    {
        if(!File.Exists(path))
        {
            return null;
        }
        
        List<Quaternion> rotList = new List<Quaternion>();
        string[] splitPosRot = new string[] { "),(" };
        List<Vector3> posList = new List<Vector3>();
        char[] seperator = new char[] { ',' };

        foreach (string line in File.ReadLines(path))
        {
            if(line != null)
            {
                // removing parentheses
                string lineCleaned = line.Substring(1, line.Length - 2);
                
                // splitting into 0 -> Position and 1 -> Rotation
                string[] posRow = lineCleaned.Split(splitPosRot, StringSplitOptions.RemoveEmptyEntries);

                // Adding into position list
                string[] pos = posRow[0].Split(seperator, StringSplitOptions.RemoveEmptyEntries);
                posList.Add(new Vector3(
                    float.Parse(pos[0], CultureInfo.InvariantCulture),
                    float.Parse(pos[1], CultureInfo.InvariantCulture),
                    float.Parse(pos[2], CultureInfo.InvariantCulture)));

                // Adding into rotation list
                string[] rot = posRow[1].Split(seperator, StringSplitOptions.RemoveEmptyEntries);
                rotList.Add(new Quaternion(
                    float.Parse(rot[0], CultureInfo.InvariantCulture),
                    float.Parse(rot[1], CultureInfo.InvariantCulture),
                    float.Parse(rot[2], CultureInfo.InvariantCulture),
                    float.Parse(rot[3], CultureInfo.InvariantCulture)));

            }
        }

        return Tuple.Create(posList, rotList);
    }
}