private async Task <ImageSource> LoadAssetAsync(string itemName, Task <ImageSource> defaultImage)
{
var fileName = string.Format(AssetPathFormat, itemName);
if (!File.Exists(fileName))
{
if (_options.DownloadMissingItemImages)
{
await _wikiLoader.ProduceAsync(itemName, fileName).ConfigureAwait(false);
}
else
{
return(await defaultImage.ConfigureAwait(false));
}
}
return(BitmapImageFactory.Create(fileName));
}
/// <summary>
/// Returns the image for the ItemClass. Each ItemClass image is only loaded once.
/// </summary>
public ImageSource LoadDefaultImage(ItemClass itemClass)
{
return(_defaultImageCache.GetOrAdd(itemClass, c =>
{
if (Application.Current == null)
{
return _errorImage;
}
try
{
var path = string.Format(ResourcePathFormat, c);
return BitmapImageFactory.Create(path);
}
catch (Exception e)
{
Log.Warn(e, "Could not load default file for ItemClass " + c);
return _errorImage;
}
}));
}
private async Task <ImageSource> LoadOfficialAsync(string imageUrl, Task <ImageSource> defaultImage)
{
// Remove the query part, remove the host part, remove image/Art/2DItems/, trim slashes
var relevantPart = Regex.Replace(imageUrl, @"(\?.*)|(.*(\.net|\.com)/)|(image/Art/2DItems/)", "").Trim('/');
var match = Regex.Match(relevantPart, @"gen/image/.*?/([a-zA-Z0-9]*)/Item\.png");
var isRelic = imageUrl.Contains("&relic=1");
if (match.Success)
{
// These names are too long.
// They contain groups of 20 chars (as folders) and end with a unique identifier.
relevantPart = $"gen/{match.Groups[1]}.png";
}
else if (isRelic)
{
// Non-generated images for relics and normal uniques have the same url, the relic flag is in the
// query part. As the query is removed, the file name needs to be adjusted for relics.
relevantPart = relevantPart.Replace(".png", "Relic.png");
}
var fileName = string.Format(DownloadedPathFormat, relevantPart);
if (!File.Exists(fileName))
{
if (!_options.DownloadMissingItemImages)
{
return(await defaultImage.ConfigureAwait(false));
}
var imgData = await _httpClient.GetByteArrayAsync(imageUrl).ConfigureAwait(false);
CreateDirectories(fileName);
WikiApiUtils.SaveImage(imgData, fileName, false);
Log.Info($"Downloaded item image {fileName} to the file system.");
}
return(BitmapImageFactory.Create(fileName));
}