using System;
using System.IO;
using UnityEngine;
using Newtonsoft.Json;
using static GameHandler;
using static LevelSpawner;
using static PlayerScript;
using static PlayersHandler;

namespace Assets.Scripts
{
    public class DataBearer : SingletonMB<DataBearer>
    {
#region PROPERTIES
        public bool DataSaved { get; private set; }

        public Attempt CurrentAttempt {  get; private set; }

        public SessionData Session
        {
            get
            {
                if (_session == null)
                {
                    _session = GetSettings();
                }
                return _session;
            }
            private set
            {
                _session = value;
            }
        } private SessionData _session = null;

        public GameState GameState { get; set; } = new();

        public Players Players { get { return Session.Players; } }
        public Rules Rules { get { return Session.Rules; } }

#endregion
#region VARIABLES

        private GameHandler _gameHandler; 
        private ScoreHandler _scoreHandler;
        private PlayersHandler _playerHandler;
        private LevelSpawner _levelSpawner;


#endregion
#region EVENTS
        public void RegisterAttempt_OnAttemptEnded(object sender, AttemptEventArgs eventArgs)
        {
            Session.Attempts.Add(CurrentAttempt);
            CurrentAttempt = null;
        }   //

        public void RegisterPlayer_OnPlayerInstanciated(object sender, PlayerEventArgs args)
        {
            var player = args.player;
            var newPlayer = new RegisteredPlayer()
            {
                Name = player.Name,
                Id = player.Id,
                Human = player.IsHuman
            };
            if(!Session.RegisteredPlayers.Exists(rp => rp.Name == newPlayer.Name))
            {
                Session.RegisteredPlayers.Add(newPlayer);
            }

            player.OnBonusTouched += RecordBonus_OnBonusTouched;
            player.OnObstacleTouched += RecordObstacle_OnObstacleTouched; 
        }   //

        public void CreateAttemptRecord_OnAttemptStarted(object sender, AttemptEventArgs args)
        {
            CurrentAttempt = args.attempt;
            
            foreach(var player in Session.RegisteredPlayers) 
            {
                PlayerAttempt playerAttempt = new PlayerAttempt()
                {
                    PlayerName = player.Name
                };
                CurrentAttempt.PlayersAttempts.Add(player.Name, playerAttempt);
            }
        }   //

        public void RecordAttemptObstacle_OnPrefabSpawned(object sender, PrefabSpawnedEventArgs args)
        {
            LevelPrefab obstacle = new() {
                PrefabName = args.pattern.name, //todo : prefab name has "(clone)" at the end
                PrefabNumber = CurrentAttempt.Level.Count + 1,
                TickTimeWhenTouched = _gameHandler.TickAttemptDuration
            };
            CurrentAttempt.Level.Add(obstacle);
        }       //

        public void RecordObstacle_OnObstacleTouched(object sender, PrefabTouchedEventArgs args)
        {
            var prefab = args.objectTouched;
            TouchedGameObject touchedGameObject = new()
            {
                FullObjectName = prefab.name,   //todo : prefab name is laser... It should be full pattern name
                ObjectTypeName = SortingLayer.IDToName(prefab.layer),   // todo : <unknown layer>
                GameSpeed = _gameHandler.MapSpeed,
                PrefabName = prefab.name,
                TickTimeWhenTouched = _gameHandler.TickAttemptDuration
            };
            CurrentAttempt.PlayersAttempts[args.playerName].ObstaclesTouched.Add(touchedGameObject);

            RecordPlayerScore(args.playerId, args.playerName);
        }   //

        public void RecordBonus_OnBonusTouched(object sender, PrefabTouchedEventArgs args)
        {
            var prefab = args.objectTouched;
            TouchedGameObject touchedGameObject = new()
            {
                FullObjectName = prefab.name,
                ObjectTypeName = SortingLayer.IDToName(prefab.layer),
                GameSpeed = _gameHandler.MapSpeed,
                PrefabName = prefab.name,
                TickTimeWhenTouched = _gameHandler.TickAttemptDuration
            };
            CurrentAttempt.PlayersAttempts[args.playerName].BonusTouched.Add(touchedGameObject);
            RecordPlayerScore(args.playerId, args.playerName);
        }   //

#endregion
#region ENDPOINTS

        public void ResetSession()
        {
            _session = null;
        }

        public void SaveData()
        {
            string directoryPath = Path.Combine(Application.persistentDataPath, "SessionsData");
            if (!Directory.Exists(directoryPath))// Crée le répertoire s'il n'existe pas déjà
            {
                Directory.CreateDirectory(directoryPath);
            }

            var existingFiles = Directory.GetFiles(directoryPath, "*.json");
            int sessionNumber = existingFiles.Length + 1;
            Session.SessionNumber = sessionNumber;

            string jsonData = JsonConvert.SerializeObject(Session);

            string fileName = $"Session_{sessionNumber}.json";
            string filePath = Path.Combine(directoryPath, fileName);
            File.WriteAllText(filePath, jsonData);


            DataSaved = true;
            Debug.Log($"Session saved to {filePath}");
        }


        public void RecordSessionTime(float time)
        {
            Session.SessionTime = time;
        }
        public void RecordSessionDate(DateTime date)
        {
            Session.Date = date;
        }

        /// <summary>
        /// Record all players scores
        /// </summary>
        public void RecordPlayersScore()
        {
            Session.RegisteredPlayers.ForEach(p =>
            {
                RecordPlayerScore(p.Id, p.Name);
            });
        }

        /// <summary>
        /// Find and record a player score
        /// </summary>
        public void RecordPlayerScore(int playerId, string playerName)
        {
            int score = (int) _scoreHandler.GetPlayerScore(playerId);
            var tickTime = _gameHandler.TickAttemptDuration;

            GenericVector<int, int> ScoreByTime = new() { X = tickTime, Y = score };

            CurrentAttempt.PlayersAttempts[playerName].PlayerScoresOverTicksTime.Add(ScoreByTime);
        }

        /// <summary>
        /// Record a player final score
        /// </summary>
        public void RecordPlayerFinalScore(int score, string playerName)
        {
            CurrentAttempt.PlayersAttempts[playerName].FinalScore = score;
        }

        /// <summary>
        /// Record the distance parcoured by the player
        /// </summary>
        public void RecordPlayerDistance(string playerName)
        {
            CurrentAttempt.PlayersAttempts[playerName].Distance = (int)_gameHandler.TotalDistance;
        }

        public void RecordPlayerAttemptDuration(string playerName)
        {
            CurrentAttempt.PlayersAttempts[playerName].AttemptDurationSeconds = _gameHandler.TimeAttemptDuration;
            CurrentAttempt.PlayersAttempts[playerName].AttemptDurationTicks = _gameHandler.TickAttemptDuration;
        }
#endregion
#region METHODS

        private SessionData GetSettings()
        {
            SessionData session = new();
            session.Players.Human = bool.Parse(PlayerPrefs.GetString(Settings.HumanPlayerSelected));
            session.Players.OmnicientBot = bool.Parse(PlayerPrefs.GetString(Settings.OmnicientBotSelected));
            session.Players.ObserverBot = bool.Parse(PlayerPrefs.GetString(Settings.ObserverBotSelected));
            session.Players.IteratorBot = bool.Parse(PlayerPrefs.GetString(Settings.IteratorBotSelected));
            session.Rules.ChangeSeedEachTry = bool.Parse(PlayerPrefs.GetString(Settings.ChangeSeedSetting));
            session.Rules.UsesDefaultSeed = bool.Parse(PlayerPrefs.GetString(Settings.UseDefaultSeedSetting));
            session.Rules.Lasers = bool.Parse(PlayerPrefs.GetString(Settings.LaserSettingToggle));
            session.Rules.Missiles = bool.Parse(PlayerPrefs.GetString(Settings.MissileSettingToggle));
            session.Rules.BonusCoins = bool.Parse(PlayerPrefs.GetString(Settings.CoinSettingToggle));
            session.Rules.MalusCoins = bool.Parse(PlayerPrefs.GetString(Settings.BadCoinSettingToggle));
            session.Rules.ScoreOnDistance = bool.Parse(PlayerPrefs.GetString(Settings.SurviveScoreSettingToggle));
            session.Rules.RushMode = bool.Parse(PlayerPrefs.GetString(Settings.RushModeSettingToggle));
            session.Rules.MaxDistance = PlayerPrefs.GetFloat(Settings.MaxDistanceSettingValue);
            session.Rules.MaxAttempts = PlayerPrefs.GetInt(Settings.MaxTrySettingValue);
            session.Rules.MaxSessionTime = PlayerPrefs.GetInt(Settings.MaxTimeSettingValue);
            session.Rules.MaxSpeed = PlayerPrefs.GetFloat(Settings.MaxSpeedSettingValue);
            session.Rules.StartSpeed = PlayerPrefs.GetFloat(Settings.StartSpeedSettingValue);
            session.Rules.DifficultyMultiplier = PlayerPrefs.GetFloat(Settings.DifficultyMultiplierSettingValue);
            
            return session;
        }

#endregion
#region LIFECYCLE
        protected override void Awake()
        {
            DataSaved = false;
            Session = GetSettings();
            base.Awake();

            _gameHandler = GameHandler.Instance;
            _scoreHandler = ScoreHandler.Instance;
            _playerHandler = PlayersHandler.Instance;
            _levelSpawner = LevelSpawner.Instance;

            _gameHandler.OnAttemptEnded += RegisterAttempt_OnAttemptEnded;
            _gameHandler.OnAttemptStarted += CreateAttemptRecord_OnAttemptStarted;
            _playerHandler.OnPlayerInstanciated += RegisterPlayer_OnPlayerInstanciated;
            _levelSpawner.OnPrefabSpawned += RecordAttemptObstacle_OnPrefabSpawned;
        }
        #endregion
    }
}