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

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

    //Reads from csv files
    public Tuple<List<Vector3>, List<Quaternion>> ReadFromCSVFile(string path)
    {
        if(!File.Exists(path))
        {
            return null;
        }

        List<Vector3> posList = new List<Vector3>();
        List<Quaternion> rotList = new List<Quaternion>();

        using (StreamReader reader = new StreamReader(path, true))
        {
            // Skip header
            reader.ReadLine();

            while (!reader.EndOfStream)
            {
                var line = reader.ReadLine();
                var values = line.Split(';');

                // Adding into position list
                posList.Add(new Vector3(
                    float.Parse(values[0]),
                    float.Parse(values[1]),
                    float.Parse(values[2])));

                // Adding into rotation list
                rotList.Add(new Quaternion(
                    float.Parse(values[3]),
                    float.Parse(values[4]),
                    float.Parse(values[5]),
                    float.Parse(values[6])));
            }
        }
            
        return Tuple.Create(posList, rotList);
    }
}