/// <summary>
/// Syncs the all the users data from a given DateTime.
/// </summary>
/// <param name="readabilityClient">The client to use to make the requests.</param>
/// <param name="syncDateTime">The date and time from when to sync.</param>
public async Task Sync(MainViewModel mainViewModel, DateTime syncDateTime)
{
mainViewModel.ProgressText = "Starting sync...";
mainViewModel.ProgressIndeterminate = true;
mainViewModel.ProgressVisible = true;
var conditions = new Conditions { UpdatedSince = syncDateTime };
var updateList = await mainViewModel.ReadabilityClient.BookmarkListEndpoint.GetAllBookmarks(conditions);
await MergeSaveBookmarkList(mainViewModel, updateList);
conditions.OnlyDeleted = 1;
var deleteList = await mainViewModel.ReadabilityClient.BookmarkListEndpoint.GetAllBookmarks(conditions);
if (!syncDateTime.Equals(new DateTime()))
{
await DeleteBookmarkList(mainViewModel.BookmarkList, deleteList);
}
mainViewModel.ProgressVisible = false;
}
/// <summary>
/// Merges the two lists and downloads their articles.
/// </summary>
/// <param name="readabilityClient">The readabilty client to use to request the documents.</param>
/// <param name="masterList">The list that will contain the final list of bookmarks.</param>
/// <param name="bookmarkList">The bookmark list to be saved.</param>
/// <returns>An awaitable task.</returns>
public async Task MergeSaveBookmarkList(MainViewModel mainViewModel, BookmarkList bookmarkList)
{
mainViewModel.ProgressValue = 0;
mainViewModel.ProgressIndeterminate = false;
mainViewModel.ProgressText = "Syncing...";
StorageFolder local = Windows.Storage.ApplicationData.Current.LocalFolder;
var tasks = new List<Task>();
foreach (var bookmark in bookmarkList.Bookmarks)
{
var saveCompleteAction = new Action(() =>
{
int position = mainViewModel.BookmarkList.Bookmarks.IndexOf(bookmark);
mainViewModel.BookmarkList.Bookmarks.Remove(bookmark);
if (position == -1)
{
mainViewModel.BookmarkList.Bookmarks.Add(bookmark);
}
else
{
mainViewModel.BookmarkList.Bookmarks.Insert(position, bookmark);
}
mainViewModel.ProgressValue += ((double)1 / (double)bookmarkList.Bookmarks.Count);
});
tasks.Add(SaveArticle(bookmark, mainViewModel.ReadabilityClient, local, saveCompleteAction));
}
await Task.WhenAll(tasks);
mainViewModel.ProgressIndeterminate = true;
mainViewModel.ProgressText = "Almost done...";
await SaveBookmarkList(mainViewModel.ReadabilityClient, mainViewModel.BookmarkList);
}