/// <summary>
/// Gets the cached bitmap image representing the card object. Will query the API if it has not been loaded, otherwise gets the cached version.
/// </summary>
public static async Task <Bitmap> GetImageAsync(string imageUri, IProgress <string> reporter)
{
if (string.IsNullOrWhiteSpace(imageUri))
{
throw new ArgumentNullException(nameof(imageUri), @"Image request URI cannot be null or empty/whitespace. Consumer must check before using this method.");
}
while (IsCacheBeingAccessed)
{
await Task.Delay(1);
}
IsCacheBeingAccessed = true;
if (ImageCache.ContainsKey(imageUri))
{
await Task.Delay(1);
IsCacheBeingAccessed = false;
return(ImageCache[imageUri]);
}
Bitmap bitmap = await ScryfallService.GetImageAsync(imageUri, reporter);
ImageCache.Add(imageUri, bitmap);
if (ImageCache.Count > 100)
{
ImageCache.Remove(ImageCache.First().Key);
}
IsCacheBeingAccessed = false;
return(bitmap);
}