public SignInSheetViewModel(string eventKey)
{
this.SignInSheetState = default(SignInSheetState);
using (EventsContext context = new EventsContext())
{
var eventItem = context.Events.SingleOrDefault(e => e.EventKey == eventKey);
this.Event = eventItem;
if (this.Event.SignInDocumentUrl == PROCESSING_URI)
{
this.SignInSheetState = SignInSheetState.SignInDocumentProcessing;
}
else if (!String.IsNullOrEmpty(this.Event.SignInDocumentUrl))
{
this.SignInSheetState = SignInSheetState.SignInDocumentAlreadyExists;
}
else
{
QueueMessage message = new QueueMessage
{
EventId = eventItem.Id,
MessageType = QueueMessageType.SignIn
};
string messageString = JsonConvert.SerializeObject(message);
GenerateSignInSheetTableStorage(context, eventItem, messageString);
}
}
}
private void HandleMessage(QueueMessage message)
{
switch (message.MessageType)
{
case QueueMessageType.SignIn:
HandleSignInMessage(message);
break;
}
}
private void GenerateSignInSheetServiceBus(EventsContext context, Event eventItem, QueueMessage message)
{
eventItem.SignInDocumentUrl = PROCESSING_URI;
context.SaveChanges();
this.Event = eventItem;
this.SignInSheetState = SignInSheetState.SignInDocumentProcessing;
}
private void GenerateSignInSheetServiceBus(EventsContext context, Event eventItem, QueueMessage message)
{
QueueClient client = QueueClient.CreateFromConnectionString(serviceBusConnectionString, signInQueueName);
BrokeredMessage queueMessage = new BrokeredMessage(message);
client.Send(queueMessage);
eventItem.SignInDocumentUrl = PROCESSING_URI;
context.SaveChanges();
this.Event = eventItem;
this.SignInSheetState = SignInSheetState.SignInDocumentProcessing;
}
private void HandleSignInMessage(QueueMessage message)
{
using (EventsContext context = new EventsContext())
{
var eventItem = context.Events.SingleOrDefault(e => e.Id == message.EventId);
IEnumerable<string> names = _tableHelper.GetRegistrantNames(eventItem.EventKey);
using (MemoryStream stream = _documentGenerator.CreateSignInDocument(eventItem.Title, names))
{
Uri documentUrl = _blobHelper.CreateBlob(stream, eventItem.EventKey);
eventItem.SignInDocumentUrl = documentUrl.AbsoluteUri;
}
context.SaveChanges();
}
}