/// <summary>
/// Writes the items added, updated and deleted in Outlook back to the server.
/// </summary>
/// <param name="syncItems">A collection with all new, updated and deleted items on Outlook side.</param>
/// <returns>The servers SyncIDs for items newly added in Outlook as dictionary.</returns>
public Dictionary <string, string> DoUpdates(AppointmentSyncCollection syncItems)
{
Dictionary <string, string> newSyncIds = new Dictionary <string, string>();
//Delete items from server
foreach (var deleteItem in syncItems.DeleteList)
{
if (_localStorage.FindUrl(deleteItem.SyncID) != null && !_localStorage.FindUrl(deleteItem.SyncID).Equals(""))
{
try
{
this.QueryCaldavServer("DELETE", new WebHeaderCollection(), "", null, _localStorage.FindUrl(deleteItem.SyncID));
} catch (WebException e) {
Debug.WriteLine(e.Message);
MessageBox.Show("The following error occurred: " + e.Message);
}
_localStorage.DeleteEntry(deleteItem.SyncID);
}
}
//Update items on server
foreach (var updateItem in syncItems.UpdateList)
{
if (_localStorage.FindUrl(updateItem.SyncID) != null && !_localStorage.FindUrl(updateItem.SyncID).Equals(""))
{
try
{
this.QueryCaldavServer("PUT", new WebHeaderCollection(), AppointmentItemXmlParser.Parse(updateItem), "text/calendar", _localStorage.FindUrl(updateItem.SyncID));
}
catch (WebException e)
{
Debug.WriteLine(e.Message);
MessageBox.Show("The following error occurred: " + e.Message);
}
_localStorage.EditETag(updateItem.SyncID, GetSingleItemFromServer(_localStorage.FindUrl(updateItem.SyncID)).ETag);
}
}
//Add items to server
foreach (var addItem in syncItems.AddList)
{
String guid = System.Guid.NewGuid().ToString();
addItem.SyncID = guid;
newSyncIds.Add(addItem.GlobalAppointmentID, guid);
String url = guid + ".ics";
try
{
this.QueryCaldavServer("PUT", new WebHeaderCollection(), AppointmentItemXmlParser.Parse(addItem), "text/calendar", url);
string url_corrected = CheckSlashAtEnd(new Uri(calendarUrl).PathAndQuery) + url;
CalDavElement newElement = GetSingleItemFromServer(url_corrected);
_localStorage.WriteEntry(guid, newElement.ETag, newElement.Url);
}
catch (WebException e)
{
Debug.WriteLine(e.Message);
MessageBox.Show("The following error occurred: " + e.Message);
}
}
//Return the dictionary with the new SyncIDs
return(newSyncIds);
}
