using Assets.StreetLight;
using Assets.StreetLight.Scripts;
using Newtonsoft.Json;
using System;
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Unity.VisualScripting;
using UnityEngine;

namespace Assets
{
    public class CalibrationRecorderBehavior : MonoBehaviour
    {
        PersonManager PersonManager => personManagerLazy.Value;
        Lazy<PersonManager> personManagerLazy;
        string calibrationFileName;

        private void Awake()
        {
            personManagerLazy = new Lazy<PersonManager>(FindObjectOfType<PersonManager>);
        }

        BlockingCollection<Action> taskQueue;
        GameObject marker;

        void Start()
        {
            taskQueue = new BlockingCollection<Action>();
            calibrationFileName = Path.Combine(Configuration.Instance.OutputCalibrationFilesDirectory, $"{DateTime.Now:yyyy-MM-dd_HH-mm-ss}.csv");
            if (!File.Exists(calibrationFileName))
            {
                File.WriteAllLines(calibrationFileName, new string[] { "Time,WorldX,WorldY,WorldZ,UnityX,UnityY,UnityZ" });
            }

            enabled = false;
            PersonManager.DetectionReady += PersonManager_DetectionReady;

            marker = GameObject.Find("CalibrationMarker");
            var markerBehavior = FindObjectOfType<CalibrationMarkerBehavior>();
            markerBehavior.PathFinished += MarkerBehavior_PathFinished;
        }

        private void MarkerBehavior_PathFinished(object sender, EventArgs e)
        {
            enabled = false;
        }

        private void PersonManager_DetectionReady(object sender, EventArgs e)
        {
            enabled = true;
        }

        void Update()
        {
            var persons = PersonManager.Persons;

            if (PersonManager.Persons.Count == 1)
            {
                var person = PersonManager.Persons.Single();

                var personPosition = person.WorldPosition;
                var markerPosition = marker.transform.position;

                taskQueue.Add(() => File.AppendAllLines(calibrationFileName, new string[] { FormattableString.Invariant($"{DateTime.Now:yyyy-MM-dd-HH-mm-ss-ff},{personPosition.x},{personPosition.y},{personPosition.z},{markerPosition.x},{markerPosition.y},{markerPosition.z}") }));
                Task.Run(() => taskQueue.Take().Invoke());
            }
        }
    }
}