using System.Collections.Generic;
using System.ComponentModel;
using System.Runtime.CompilerServices;
using System.Xml.Serialization;

namespace Configuration
{
    [XmlRoot(ElementName = "Images")]
    public class Images : INotifyPropertyChanged
    {
        private List<string> _image = new List<string> { };

        [XmlElement(ElementName = "Image")]
        public List<string> Image
        {
            get => _image;
            set
            {
                if (Equals(value, _image))
                {
                    return;
                }

                _image = value;
                OnPropertyChanged();
            }
        }

        public Images(IEnumerable<string> mimeTypes) : this()
        {
            Add(mimeTypes);
        }

        public Images()
        {
        }

        public event PropertyChangedEventHandler PropertyChanged;

        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }

        protected bool SetField<T>(ref T field, T value, [CallerMemberName] string propertyName = null)
        {
            if (EqualityComparer<T>.Default.Equals(field, value)) return false;
            field = value;
            OnPropertyChanged(propertyName);
            return true;
        }

        public void Add(IEnumerable<string> mimeTypes)
        {
            foreach (var mimeType in mimeTypes)
            {
                if (!_image.Contains(mimeType))
                {
                    _image.Add(mimeType);
                }
            }
        }
    }
}