/// <summary>
/// Queries the gallery database for the package specified by the <see cref="ValidationContext"/> and returns a <see cref="PackageTimestampMetadata"/>.
/// If the package is missing from the repository, returns the package's deletion audit record timestamp.
/// </summary>
public async Task <PackageTimestampMetadata> GetAsync(ValidationContext context)
{
var feedPackageDetails = await _galleryDatabase.GetPackageOrNull(
context.Package.Id,
context.Package.Version.ToNormalizedString());
if (feedPackageDetails != null)
{
return(PackageTimestampMetadata.CreateForExistingPackage(
feedPackageDetails.CreatedDate,
feedPackageDetails.LastEditedDate));
}
DateTime?deleted = null;
if (context.DeletionAuditEntries.Any())
{
deleted = context.DeletionAuditEntries.Max(entry => entry.TimestampUtc);
}
return(PackageTimestampMetadata.CreateForMissingPackage(deleted));
}
private Task <FeedPackageDetails> GetPackageAsync(PackageIdentity package)
{
return(_galleryDatabase.GetPackageOrNull(package.Id, package.Version.ToNormalizedString()));
}