using WarmlyShip.DrawningObjects;
using WarmlyShip.Entities;
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace WarmlyShip.Generics
{
    internal class DrawiningShipEqutables : IEqualityComparer<DrawningShip?>
    {
        public bool Equals(DrawningShip? x, DrawningShip? y)
        {
            if (x == null || x.EntityShip == null)
            {
                throw new ArgumentNullException(nameof(x));
            }
            if (y == null || y.EntityShip == null)
            {
                throw new ArgumentNullException(nameof(y));
            }
            if (x.GetType().Name != y.GetType().Name)
            {
                return false;
            }
            if (x.EntityShip.Speed != y.EntityShip.Speed)
            {
                return false;
            }
            if (x.EntityShip.Weight != y.EntityShip.Weight)
            {
                return false;
            }
            if (x.EntityShip.BodyColor != y.EntityShip.BodyColor)
            {
                return false;
            }
            if (x is DrawningWarmlyShip && y is DrawningWarmlyShip)
            {
                EntityWarmlyShip EntityX = (EntityWarmlyShip)x.EntityShip;
                EntityWarmlyShip EntityY = (EntityWarmlyShip)y.EntityShip;
                if (EntityX.Pipe != EntityY.Pipe)
                {
                    return false;
                }
                if (EntityX.FuelCompartment != EntityY.FuelCompartment)
                {
                    return false;
                }
                if (EntityX.AdditionalColor != EntityY.AdditionalColor)
                {
                    return false;
                }
            }
            return true;
        }

        public int GetHashCode([DisallowNull] DrawningShip? obj)
        {
            return obj.GetHashCode();
        }
    }
}