annotations/Azaion.Common/DTO/AnnotationThumbnail.cs

using System.ComponentModel;
using System.IO;
using System.Runtime.CompilerServices;
using System.Windows.Media.Imaging;
using Azaion.Common.Database;
using Azaion.Common.Extensions;

namespace Azaion.Common.DTO;

public class AnnotationThumbnail(Annotation annotation, bool isValidator) : INotifyPropertyChanged
{
    public Annotation Annotation { get; set; } = annotation;
    public bool IsValidator { get; set; } = isValidator;

    private BitmapImage? _thumbnail;
    public BitmapImage? Thumbnail
    {
        get
        {
            if (_thumbnail == null)
                Task.Run(async () => Thumbnail = await Annotation.ThumbPath.OpenImage());
            return _thumbnail;
        }
        private set
        {
            _thumbnail = value;
            OnPropertyChanged();
        }
    }

    public string ImageName => Path.GetFileName(Annotation.ImagePath);
    public string CreatedDate => $"{Annotation.CreatedDate:dd.MM.yyyy HH:mm:ss}";
    public string CreatedEmail => Annotation.CreatedEmail;
    public bool IsSeed => IsValidator &&
                          Annotation.AnnotationStatus.In(AnnotationStatus.Created, AnnotationStatus.Edited) &&
                          !Annotation.CreatedRole.IsValidator();

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

    public void UpdateUI() => OnPropertyChanged(nameof(IsSeed));
}