using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Text;

namespace sharpcomparer
{
    public class Comparison<T> : IComparable<T>
    {
        public enum ComparisonDifference
        {
            None,
            LeftOnly,
            Different,
            RightOnly
        }

        private T leftItem;
        private T rightItem;
        private ComparisonDifference difference;

        public ComparisonDifference Difference
        {
            get { return difference; }
            set { difference = value; }
        }

        public T LeftItem
        {
            get { return leftItem; }
            set { leftItem = value; }
        }

        public T RightItem
        {
            get { return rightItem; }
            set { rightItem = value; }
        }

        public string Status
        {
            get
            {
                return Difference.ToString();
            }
        }

        public Image Image
        {
            get
            {
                Assembly assembly = Assembly.GetExecutingAssembly();
                

                string name = "sharpcomparer.Resources.none.png";
                switch (Difference)
                {
                    case Comparison<T>.ComparisonDifference.LeftOnly:
                        name = "sharpcomparer.Resources.leftOnly.png";
                        break;
                    case Comparison<T>.ComparisonDifference.RightOnly:
                        name = "sharpcomparer.Resources.rightOnly.png";
                        break;
                    case Comparison<T>.ComparisonDifference.Different:
                        name = "sharpcomparer.Resources.different.png";
                        break;
                }

                Stream stream = assembly.GetManifestResourceStream(name);
                return new Bitmap(stream);
            }
        }

        public Comparison(T leftItem, T rightItem, ComparisonDifference difference)
        {
            this.leftItem = leftItem;
            this.rightItem = rightItem;
            this.difference = difference;
        }

        #region IComparable<T> Members

        public int CompareTo(T other)
        {
            throw new NotImplementedException();
        }

        #endregion
    }
}