private async void CheckUpdate()
{
if (IsChecking || IsLoading || IsUpdating)
{
return;
}
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
IsChecking = true;
});
if (this.LocalBookList.Count < 1)
{
return;
}
Task[] tasks = new Task[this.LocalBookList.Count];
try
{
int i = 0;
foreach (var item in LocalBookList)
{
tasks[i] = Task.Run(async() =>
{
try
{
if (!string.IsNullOrEmpty(item.CatalogListUrl))
{
var result = await AnalysisBookCatalogList.GetCatalogList(item.CatalogListUrl, item.BookID, new HttpHelper());
if (!IsChecking)
{
return;
}
if (result.Item1 != null)
{
var list = result.Item1;
var last = DBBookCatalog.SelectBookCatalogs(AppDataPath.GetBookDBPath(item.BookID), item.BookID);
var undownLoad = list.FindAll(p => last?.FirstOrDefault(m => m.CatalogUrl == p.CatalogUrl) == null);
if (undownLoad != null && undownLoad.Count > 0)
{
item.UnDownloadCatalogList = new ObservableCollection <BookCatalog>();
undownLoad.ForEach(p => item.UnDownloadCatalogList.Add(p));
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
item.UnReadCountData = " " + undownLoad.Count.ToString();
});
}
else
{
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
item.UnReadCountData = "";
});
}
}
}
}
catch (Exception)
{
}
});
i++;
}
await Task.Factory.ContinueWhenAll(tasks, (obj) =>
{
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
IsChecking = false;
});
});
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
IsChecking = false;
});
}
}
public void GetLocalBook()
{
if (IsLoading || IsChecking || IsUpdating)
{
if (IsLoading)
{
ToastHeplper.ShowMessage("正在刷新数据，请稍后");
return;
}
if (IsChecking)
{
ToastHeplper.ShowMessage("正在检测更新，请稍后");
return;
}
if (IsUpdating)
{
ToastHeplper.ShowMessage("正在更新本地数据，请稍后");
return;
}
}
IsLoading = true;
this.LocalBookList.Clear();
Task.Run(() =>
{
try
{
var result = DBLocalBook.GetAllLocalBookList(AppDataPath.GetLocalBookDBPath());
if (result != null)
{
foreach (var item in result)
{
string path = Path.Combine(Windows.Storage.ApplicationData.Current.LocalFolder.Path, AppDataPath.LocalBookFolderName, item.BookID + ".db");
if (File.Exists(path))
{
var list = DBBookCatalog.SelectBookCatalogs(AppDataPath.GetBookDBPath(item.BookID), item.BookID);
if (list != null && list.Count > 0)
{
foreach (var catalog in list)
{
if (item.CatalogList == null)
{
item.CatalogList = new ObservableCollection <BookCatalog>();
}
item.CatalogList.Add(catalog);
}
item.NewestChapterName = list.LastOrDefault().CatalogName;
item.NewestChapterUrl = list.LastOrDefault().CatalogUrl;
}
else
{
item.NewestChapterName = null;
item.NewestChapterUrl = null;
}
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
item.IsLocal = true;
this.LocalBookList.Add(item);
});
}
else
{
DBLocalBook.DeleteLocalBookByBookID(AppDataPath.GetLocalBookDBPath(), item.BookID);
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
finally
{
DispatcherHelper.CheckBeginInvokeOnUI(() =>
{
IsLoading = false;
});
}
}).ContinueWith(obj =>
{
CheckUpdate();
});
}