using Escape_Room_Engine.Engine.Scripts.Utilities;
using UnityEngine;
using Logger = Escape_Room_Engine.Engine.Scripts.Utilities.Logger;
using LogType = Escape_Room_Engine.Engine.Scripts.Utilities.LogType;

namespace Escape_Room_Engine.Engine.Scripts.Modules
{
    public enum PuzzleEventType
    {
        Reset, Solved
    }
    
    public delegate void PuzzleEventHandler(PuzzleModule source, PuzzleEventType e);
    
    public class PuzzleModule : Module
    {
        internal event PuzzleEventHandler PuzzleEvent;

        internal bool Solved
        {
            get => _solved;
            private set
            {
                var type =
                    !_solved && value ? Some<PuzzleEventType>.Of(PuzzleEventType.Solved)
                    : _solved && value ? Some<PuzzleEventType>.Of(PuzzleEventType.Reset)
                    : None<PuzzleEventType>.New();
                _solved = value;
                type.Match(some: OnPuzzleEvent);
            }
        }
        
        private bool _solved;
        
        internal PuzzleModule(Space space, PuzzleModuleDescription description) : base(space, description)
        {
            srDimensions.Size = Vector2Int.one; // TODO: larger modules
        }

        protected virtual void OnPuzzleEvent(PuzzleEventType type)
        {
            Logger.Log($"{this} has been {type}", LogType.PuzzleFlow);
            
            PuzzleEvent?.Invoke(this, type);
        }

        public void Solve()
        {
            Solved = true;
        }

        public override string ToString()
        {
            return $"Puzzle module ({(Solved ? "" : "not ")}solved)";
        }
    }
}