using System;
using System.IO;
using System.Text;
using UnityEngine;

public class MousePosition : MonoBehaviour
{
    public string logFileName = "";

    // Get from LoggingManager
    private int ParticipantID;
    private string logPathFolder = "";

    private string logPath;

    private float time = 0f;

    private void Start()
    {
        ParticipantID = gameObject.GetComponentInParent<LoggingManager>().ParticipantID;
        logPathFolder = gameObject.GetComponentInParent<LoggingManager>().LogPathFolder;

        logFileName = "log_" + logFileName + ".csv";
        logPath = Path.Combine(logPathFolder, logFileName);

        using (FileStream stream = File.Open(logPath, FileMode.Create))
        {
            using (StreamWriter writer = new StreamWriter(stream))
            {
                writer.WriteLine(GetLogFileHeader());
                writer.Flush();
            }
        }
        Debug.Log("Created new Logfile " + logFileName);
    }

    private string GetLogFileHeader()
    {
        StringBuilder header = new StringBuilder("ParticipantID");
        header.Append(";Time");
        header.Append(";Position");

        return header.ToString();
    }

    private void FixedUpdate()
    {
        if (File.Exists(logPath))
        {
            try
            {
                using (StreamWriter writer = new StreamWriter(logPath, true))
                {
                    StringBuilder line = new StringBuilder();
                    line.Append(ParticipantID);
                    line.Append(";" + time);
                    line.Append(";" + Input.mousePosition.ToString());

                    writer.WriteLine(line);
                    writer.Flush();
                }
            }
            catch (Exception e)
            {
                throw new ApplicationException("Something went wrong by writing into a csv file: ", e);
            }
        }
        time += Time.deltaTime;
    }
}