using EscapeRoomEngine.Engine.Runtime.Modules;
using Realms;
using UnityEngine;
using Logger = EscapeRoomEngine.Engine.Runtime.Utilities.Logger;
using LogType = EscapeRoomEngine.Engine.Runtime.Utilities.LogType;

namespace EscapeRoomEngine.Engine.Runtime.Measurements
{
    public class PuzzleStorage : MonoBehaviour
    {
        public static PuzzleStorage Instance
        {
            get
            {
                if (_foundStorage == null)
                {
                    _foundStorage = FindObjectOfType<PuzzleStorage>();
                }
                return _foundStorage;
            }
        }
        private static PuzzleStorage _foundStorage;
        
        [SerializeField]
        private string databasePath = "measurements.realm";
        
        private Realm _realm;

        private void OnEnable()
        {
            _realm = Realm.GetInstance(databasePath);
        }

        private void Start()
        {
            Logger.Log($"Using realm database at {_realm.Config.DatabasePath}", LogType.Measuring);
        }

        private void OnDisable()
        {
            _realm?.Dispose();
        }

        #region Session

        public void EndSession(Session session, float time)
        {
            session.Time = time;
            
            _realm.Write(() =>
            {
                _realm.Add(session);
            });
        }

        #endregion

        #region Puzzles

        private Puzzle New(PuzzleModuleDescription puzzle)
        {
            Puzzle created = null;
            
            _realm.Write(() => created = _realm.Add(new Puzzle(puzzle)));
            
            return created;
        }

        private Puzzle LoadOrNew(PuzzleModuleDescription puzzle) => _realm.Find<Puzzle>(puzzle.Id) ?? New(puzzle);

        private Puzzle Load(PuzzleModuleDescription puzzle) => _realm.Find<Puzzle>(puzzle.Id);
        
        public void Delete(PuzzleModuleDescription puzzle)
        {
            var found = Load(puzzle);
            if (found != null)
            {
                _realm.Write(() => _realm.Remove(found));
            }
        }

        public void EndMeasurement(Session session, PuzzleModuleDescription puzzle, PuzzleMeasurement measurement)
        {
            var found = LoadOrNew(puzzle);
            
            _realm.Write(() =>
            {
                measurement.TimeSolved = Time.time;
                found.Measurements.Add(measurement);
                
                // add solved puzzle to session
                session.PuzzlesSolved.Add(found);
            });
        }

        #endregion
    }
}