using GameModel.Exceptions;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Net.NetworkInformation;
using System.Numerics;
using System.Reflection.Metadata.Ecma335;
using System.Text;
using System.Threading.Tasks;

namespace GameModel
{
    public record PinPicture(PinState PinState1, PinState PinState2, PinState PinState3, PinState PinState4, PinState PinState5, PinState PinState6, PinState PinState7, PinState PinState8, PinState PinState9)
        : IEnumerable<PinState>, IEnumerable
    {
        public static PinPicture Create(PinState pinState1, PinState pinState2, PinState pinState3, PinState pinState4, PinState pinState5, PinState pinState6, PinState pinState7, PinState pinState8, PinState pinState9)
        {
            return new PinPicture(pinState1, pinState2, pinState3, pinState4, pinState5, pinState6, pinState7, pinState8, pinState9);
        }

        public static PinPicture Create()
        {
            return PinPicture.Create(PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up);
            //pins.Add(PinState1);
            //pins.Add(pinState2);
            //pins.Add(pinState3);
            //pins.Add(pinState4);
            //pins.Add(pinState5);
            //pins.Add(pinState6);
            //pins.Add(pinState7);
            //pins.Add(pinState8);
            //pins.Add(pinState9);
            //ValidatePinPicture(pins);
        }

        //private PinPicture(IEnumerable<PinState> pins)
        //{
        //    this.pins = pins.Select(_ => _).ToList();            
        //    ValidatePinPicture(this.pins);
        //}

        //private void ValidatePinPicture(IEnumerable<PinState> pins)
        //{
        //if (pins.Count() != 9)
        //{
        //    throw new InvalidPinPictureException();
        //}

        //if (pins.All(_ => _ == PinState.Down))
        //{
        //    throw new InvalidPinPictureException();
        //}

        //if (pins.Count(_ => _ == PinState.Up) == 0)
        //{
        //    throw new InvalidPinPictureException();
        //}

        //if (ThrowCounter >= ThrowsPerRound)
        //{
        //    throw new InvalidPinPictureException();
        //}
        //}
        
        private List<PinState> pins
        {
            get
            {                               
                return new List<PinState>(new[] { PinState1, PinState2, PinState3, PinState4, PinState5, PinState6, PinState7, PinState8, PinState9 });
            }
        }

        public PinState this[int index]
        {
            get
            {
                if (index < 1 || index > 9)
                {
                    throw new InvalidPinIndexException();
                }

                return pins[index - 1];
            }
            //set
            //{
            //    if (index < 1 || index > 9)
            //    {
            //        throw new InvalidPinIndexException();
            //    }
            //    pins[index - 1] = value;
            //}
        }

        //public PinState PinState1 { get; init; }
        //public PinState PinState2 { get; init; }
        //public PinState PinState3 { get; init; }
        //public PinState PinState4 { get; init; }
        //public PinState PinState5 { get; init; }
        //public PinState PinState6 { get; init; }
        //public PinState PinState7 { get; init; }
        //public PinState PinState8 { get; init; }
        //public PinState PinState9 { get; init; }

        ////public PinState PinState1 { get { return this[1]; } set { this[1] = value; } }
        //public PinState PinState2 { get { return this[2]; } set { this[2] = value; } }
        //public PinState PinState3 { get { return this[3]; } set { this[3] = value; } }
        //public PinState PinState4 { get { return this[4]; } set { this[4] = value; } }
        //public PinState PinState5 { get { return this[5]; } set { this[5] = value; } }
        //public PinState PinState6 { get { return this[6]; } set { this[6] = value; } }
        //public PinState PinState7 { get { return this[7]; } set { this[7] = value; } }
        //public PinState PinState8 { get { return this[8]; } set { this[8] = value; } }
        //public PinState PinState9 { get { return this[9]; } set { this[9] = value; } }

        public int UpCount
        {
            get { return pins.Count(_ => _ == PinState.Up); }
        }

        public int DownCount
        {
            get { return pins.Count(_ => _ == PinState.Down); }
        }

        public bool AllUp
        {
            get
            {
                return DownCount == 0;
            }
        }

        public static PinPicture operator +(PinPicture pic, PinThrow pinThrow)
        {
            if (pinThrow.IsSink)
                return pic with { };

            //if (pic.PinState1 == PinState.Down && pinThrow.PicPicture.PinState1 == PinState.Down)
            //{
            //    throw new InvalidPinCalcExcetion();
            //}

            return pic with
            {
                PinState1 = pinThrow.PicPicture.PinState1 == PinState.Down ? PinState.Down : pic.PinState1,
                PinState2 = pinThrow.PicPicture.PinState2 == PinState.Down ? PinState.Down : pic.PinState2,
                PinState3 = pinThrow.PicPicture.PinState3 == PinState.Down ? PinState.Down : pic.PinState3,
                PinState4 = pinThrow.PicPicture.PinState4 == PinState.Down ? PinState.Down : pic.PinState4,
                PinState5 = pinThrow.PicPicture.PinState5 == PinState.Down ? PinState.Down : pic.PinState5,
                PinState6 = pinThrow.PicPicture.PinState6 == PinState.Down ? PinState.Down : pic.PinState6,
                PinState7 = pinThrow.PicPicture.PinState7 == PinState.Down ? PinState.Down : pic.PinState7,
                PinState8 = pinThrow.PicPicture.PinState8 == PinState.Down ? PinState.Down : pic.PinState8,
                PinState9 = pinThrow.PicPicture.PinState9 == PinState.Down ? PinState.Down : pic.PinState9
            };
        }

        public IEnumerator<PinState> GetEnumerator()
        {
            foreach (var pin in pins)
            {
                yield return pin;
            }
        }

        IEnumerator IEnumerable.GetEnumerator()
        {
            return this.GetEnumerator();
        }

        public static PinPicture Create(int pinNumber, PinState pinState)
        {
            var states = new List<PinState>(new[] { PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up, PinState.Up }).ToArray();
            states[pinNumber - 1] = pinState;
            return PinPicture.Create(states);
        }

        private static PinPicture Create(PinState[] states)
        {
            return PinPicture.Create(states[0], states[1], states[2], states[3], states[4], states[5], states[6], states[7], states[8]);
        }

        public static PinPicture CreateAllPins()
        {
            var states = new List<PinState>(new[] { PinState.Down, PinState.Down, PinState.Down, PinState.Down, PinState.Down, PinState.Down, PinState.Down, PinState.Down, PinState.Down }).ToArray();            
            return PinPicture.Create(states);
        }

        public static PinPicture CreateCircle()
        {
            var states = new List<PinState>(new[] { PinState.Down, PinState.Down, PinState.Down, PinState.Down, PinState.Up, PinState.Down, PinState.Down, PinState.Down, PinState.Down }).ToArray();
            return PinPicture.Create(states);
        }
    }
}