/// <summary>
/// Retrieves category IDs from the update server: classifications, products and detectoids
/// </summary>
/// <param name="oldAnchor">The anchor returned by a previous call to this function. Can be null.</param>
/// <returns>The list of category IDs and an anchor. If an anchor was passed in, the
/// list of category IDs is a delta list of categories changed since the anchor was generated.</returns>
private async Task <(string anchor, IEnumerable <Metadata.Identity> identities)> GetCategoryIds(string oldAnchor = null)
{
// Create a request for categories
var revisionIdRequest = new GetRevisionIdListRequest();
revisionIdRequest.GetRevisionIdList = new GetRevisionIdListRequestBody();
revisionIdRequest.GetRevisionIdList.cookie = AccessToken.AccessCookie;
revisionIdRequest.GetRevisionIdList.filter = new ServerSyncFilter();
if (!string.IsNullOrEmpty(oldAnchor))
{
revisionIdRequest.GetRevisionIdList.filter.Anchor = oldAnchor;
}
// GetConfig must be true to request just categories
revisionIdRequest.GetRevisionIdList.filter.GetConfig = true;
var revisionsIdReply = await ServerSyncClient.GetRevisionIdListAsync(revisionIdRequest);
if (revisionsIdReply == null || revisionsIdReply.GetRevisionIdListResponse1 == null || revisionsIdReply.GetRevisionIdListResponse1.GetRevisionIdListResult == null)
{
throw new Exception("Failed to get revision ID list");
}
// Return IDs and the anchor for this query. The anchor can be used to get a delta list in the future.
return(
revisionsIdReply.GetRevisionIdListResponse1.GetRevisionIdListResult.Anchor,
revisionsIdReply.GetRevisionIdListResponse1.GetRevisionIdListResult.NewRevisions.Select(rawId => new Metadata.Identity(rawId)));
}
/// <summary>
/// Return a list of update ids
/// </summary>
/// <param name="request">Request data. Can specify categories or updates, filters, etc.</param>
/// <returns></returns>
public Task <RevisionIdList> GetRevisionIdListAsync(GetRevisionIdListRequest request)
{
var response = new RevisionIdList();
response.Anchor = DateTime.Now.ToString();
if (request.GetRevisionIdList.filter.GetConfig == true)
{
if (!string.IsNullOrEmpty(request.GetRevisionIdList.filter.Anchor) && DateTime.TryParse(request.GetRevisionIdList.filter.Anchor, out DateTime anchorTime))
{
// If we have an anchor, return only categories that have changed after the anchor
response.NewRevisions = Categories
.Select(u => u.Identity.Raw)
.ToArray();
}
else
{
// else return all categories
response.NewRevisions = Categories.Select(u => u.Identity.Raw).ToArray();
}
}
else
{
var productsFilter = request.GetRevisionIdList.filter.Categories;
var classificationsFilter = request.GetRevisionIdList.filter.Classifications;
var requestedUpdateIds = new List <Update>();
if (productsFilter != null)
{
// Apply the product filter
foreach (var product in productsFilter)
{
if (ProductsIndex.ContainsKey(product.Id))
{
requestedUpdateIds.AddRange(ProductsIndex[product.Id]);
}
}
}
else
{
requestedUpdateIds.AddRange(FilteredUpdates.Values);
}
if (classificationsFilter != null)
{
var classificationFilterIds = classificationsFilter.Select(filter => filter.Id).ToList();
// Remove all updates that don't have classifications
requestedUpdateIds.RemoveAll(u => !u.HasClassification);
// Remove all updates that don't have a classification that matches the filter
requestedUpdateIds.RemoveAll(
u => !u.ClassificationIds.Any(c => classificationFilterIds.Contains(c)));
}
// Deduplicate result and convert to raw identity format
response.NewRevisions = requestedUpdateIds.GroupBy(u => u.Identity).Select(g => g.Key).Select(k => k.Raw).ToArray();
}
return(Task.FromResult(response));
}
