using System;
using System.Collections.Generic;
using System.Text;

namespace ImageSorter
{
    public class ImageInfo
    {
        public readonly string Filename;
        private Dictionary<string, bool> _tagSet = new Dictionary<string, bool>();

        public ImageInfo(string filename)
        {
            Filename = filename;
        }

        public IEnumerable<string> Tags
        {
            get
            {
                return _tagSet.Keys;
            }
        }

        public bool HasTag(string tag)
        {
            return _tagSet.ContainsKey(tag);
        }

        public void SetTag(string tag, bool has)
        {
            if (has)
            {
                _tagSet[tag] = true;
            }
            else
            {
                _tagSet.Remove(tag);
            }
        }
    }
}