public void Add(BookDownloadModel item)
{
using (BookDataContext context = BookDataContext.Connect())
{
context.Downloads.InsertOnSubmit(item);
context.SubmitChanges();
}
}
public bool DownloadBook(CatalogBookItemModel catalogBookItemModel, int catalogId, bool fullBook = true)
{
var link = fullBook
? GetDownloadLink(catalogBookItemModel.Links.ToArray())
: GetDownloadLink(catalogBookItemModel.TrialLink);
if (link == null)
{
return(false);
}
if (!_bookDownloader.IsStarted)
{
_bookDownloader.Start();
}
var downloadModel = new BookDownloadModel
{
Path = link.Url,
Type = GetBookType(link.Type),
IsZip = CheckIsZip(link.Type),
Name = catalogBookItemModel.Title,
Author = catalogBookItemModel.Author,
Description = catalogBookItemModel.Description,
AcquisitionUrl = catalogBookItemModel.AcquisitionLink != null ? catalogBookItemModel.AcquisitionLink.Url : null,
AcquisitionType = catalogBookItemModel.AcquisitionLink != null ? catalogBookItemModel.AcquisitionLink.Type : null,
AcquisitionPrices = catalogBookItemModel.AcquisitionLink != null?catalogBookItemModel.AcquisitionLink.ToString() : null,
DataSourceID = catalogId,
IsTrial = !fullBook,
CatalogItemId = catalogBookItemModel.Id
};
int oldQueueCount = _container.Count;
_bookDownloadsRepository.Add(downloadModel);
var downloadViewModel = new DownloadItemDataModel(downloadModel);
_container.Enqueue(downloadViewModel);
if (_container.Count == oldQueueCount)
{
int index = _container.GetDataModelIndex(downloadViewModel);
if (index > -1)
{
var viewModel = _container.Items[index];
if (viewModel.Status == DownloadStatus.Error)
{
viewModel.Status = DownloadStatus.Pending;
_bookDownloadsRepository.Remove(downloadModel.DownloadID);
}
}
}
return(true);
}
public DownloadItemDataModel(BookDownloadModel model)
{
DownloadID = model.DownloadID;
DataSourceID = model.DataSourceID;
Path = model.Path;
Name = model.Name;
Type = model.Type;
IsZip = model.IsZip;
Status = DownloadStatus.Pending;
Canceled = false;
BookID = Guid.Empty;
IsTrial = model.IsTrial;
CatalogItemId = model.CatalogItemId;
Author = model.Author;
Description = model.Description;
AcquisitionUrl = model.AcquisitionUrl;
AcquisitionType = model.AcquisitionType;
AcquisitionPrices = model.AcquisitionPrices;
}
public void Remove(int downloadId)
{
lock (_locker)
{
using (BookDataContext context = BookDataContext.Connect())
{
try
{
BookDownloadModel model = context.Downloads.FirstOrDefault(t => t.DownloadID == downloadId);
if (model != null)
{
context.Downloads.DeleteOnSubmit(model);
context.SubmitChanges(ConflictMode.ContinueOnConflict);
}
}
catch (ChangeConflictException)
{
context.ChangeConflicts.ResolveAll(RefreshMode.KeepChanges);
context.SubmitChanges();
}
}
}
}
