public async Task <ActionResult <MutationResult> > DeleteAsync(string id)
{
var mutation = new DeleteAnnouncement {
Id = id
};
return(GetResult(await _mutationsHanlder.Handle(mutation)));
}
void Propagate(DeleteAnnouncement request)
{
if (!string.IsNullOrEmpty(request.Cooperator))
{
var client = new RestClient(request.Cooperator);
var requestToSend = new RestRequest($"topics/{request.TopicName}/announcements/{request.AnnouncementId}", Method.DELETE);
requestToSend.RequestFormat = DataFormat.Json;
requestToSend.AddParameter("SubscriberId", request.SubscriberId);
client.Execute(requestToSend);
}
}
public void Delete(DeleteAnnouncement request)
{
var topicLock = Locks.TakeTopicLock(request.TopicName);
lock (topicLock)
{
if (Locks.TopicsRecoveryLocks.ContainsKey(request.TopicName))
{
throw new Exception($"Topic {request.TopicName} is inconsistent");
}
using (var connection = Connections.ConnectToInitializedTopic(request.TopicName))
{
Delete(connection, request);
}
}
}
void Delete(IDbConnection connection, DeleteAnnouncement request)
{
var subscriber = connection.GetById <Subscriber>(request.SubscriberId);
var announcement = connection.First(NextAnnouncement.make(connection, subscriber));
if (announcement.Id != request.AnnouncementId)
{
throw new ArgumentException("Invalid announcement");
}
connection.UpdateOnly(new Subscriber {
LastAnnouncementId = announcement.Id
},
subscription => new { subscription.LastAnnouncementId },
subscription => subscription.Id == subscriber.Id);
Propagators.ScheduleTopicOperation(request.TopicName, () => Propagate(request));
}
public async void DeleteAnnouncement(
EStatusCode expectedStatus,
DeleteAnnouncement mutation
)
{
if (expectedStatus != EStatusCode.NotFound)
{
EntitiesFactory.NewAnnouncement(id: mutation.Id).Save();
}
var result = await MutationsHandler.Handle(mutation);
Assert.Equal(expectedStatus, result.Status);
if (expectedStatus == EStatusCode.Success)
{
var existsAnnouncement = await MutationsDbContext.Announcements.AnyAsync(a => a.Id == mutation.Id);
Assert.False(existsAnnouncement);
}
}
