using System;
using Escape_Room_Engine.Engine.Scripts.Utilities;
using NaughtyAttributes;

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

        private new PuzzleModule Module { get; set; }
        public bool Solved
        {
            get => _solved;
            private set
            {
                var type =
                    !_solved && value ? Some<PuzzleEventType>.Of(PuzzleEventType.Solved)
                    : _solved && !value ? Some<PuzzleEventType>.Of(PuzzleEventType.Restarted)
                    : None<PuzzleEventType>.New();
                _solved = value;
                type.Match(some: OnPuzzleEvent);
            }
        }
        
        private bool _solved;

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

        public override void SetModule(Module module)
        {
            if (module is PuzzleModule puzzleModule)
            {
                Module = puzzleModule;
            }
            else
            {
                throw new Exception("Tried to set wrong type of module.");
            }
        }

        [Button(enabledMode: EButtonEnableMode.Playmode)]
        public void Solve()
        {
            Solved = true;
        }

        [Button(enabledMode: EButtonEnableMode.Playmode)]
        public void Restart()
        {
            Solved = false;
        }
    }
}