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

namespace RoadTrain.Generics
{
    internal class DrawiningTrainEqutables : IEqualityComparer<DrawningRoadTrain?>
    {
        public bool Equals(DrawningRoadTrain? x, DrawningRoadTrain? y)
        {
            if (x == null || x.EntityRoadTrain == null)
            {
                throw new ArgumentNullException(nameof(x));
            }
            if (y == null || y.EntityRoadTrain == null)
            {
                throw new ArgumentNullException(nameof(y));
            }
            if (x.GetType().Name != y.GetType().Name)
            {
                return false;
            }
            if (x.EntityRoadTrain.Speed != y.EntityRoadTrain.Speed)
            {
                return false;
            }
            if (x.EntityRoadTrain.Weight != y.EntityRoadTrain.Weight)
            {
                return false;
            }
            if (x.EntityRoadTrain.BodyColor != y.EntityRoadTrain.BodyColor)
            {
                return false;
            }
            if (x is DrawningTrain && y is DrawningTrain)
            {
                EntityTrain EntityX = x.EntityRoadTrain as EntityTrain;
                EntityTrain EntityY = y.EntityRoadTrain as EntityTrain;
                if (EntityX.WaterContainer != EntityY.WaterContainer)
                    return false;
                if (EntityX.SweepingBrush != EntityY.SweepingBrush)
                    return false;
                if (EntityX.AdditionalColor != EntityY.AdditionalColor)
                    return false;
            }
            return true;
        }
        public int GetHashCode([DisallowNull] DrawningRoadTrain obj)
        {
            return obj.GetHashCode();
        }

    }
}