private static async Task DoFetch(Random rng, IUserInfo userInfo, DownloadForm downloadWindow, CancellationToken cancellationToken)
{
List <IVideoInfo> videos = new List <IVideoInfo>();
while (true)
{
downloadWindow.AddStatusMessage("Fetching " + userInfo.ToString() + "...");
try {
FetchReturnValue fetchReturnValue;
int Offset = 0;
do
{
try {
await Task.Delay(rng.Next(55000, 95000), cancellationToken);
} catch (Exception) { }
if (cancellationToken.IsCancellationRequested)
{
break;
}
fetchReturnValue = await userInfo.Fetch(Offset, true);
Offset += fetchReturnValue.VideoCountThisFetch;
if (fetchReturnValue.Success)
{
videos.AddRange(fetchReturnValue.Videos);
}
} while (fetchReturnValue.Success && fetchReturnValue.HasMore);
break;
} catch (Exception ex) {
downloadWindow.AddStatusMessage("Error during " + userInfo.ToString() + ": " + ex.ToString());
break;
}
}
if (!cancellationToken.IsCancellationRequested)
{
try {
await Task.Delay(rng.Next(55000, 95000), cancellationToken);
} catch (Exception) { }
}
downloadWindow.AddStatusMessage("Fetched " + videos.Count + " items from " + userInfo.ToString() + ".");
DownloadFetched(videos, downloadWindow);
}
private async Task Run()
{
while (true)
{
try {
await Task.Delay(3000, CancelToken);
} catch (Exception) { }
if (CancelToken.IsCancellationRequested)
{
return;
}
try {
IUserInfo earliestUserInfo = null;
lock (ContainerLock) {
foreach (IUserInfo u in UserInfos)
{
if (u.AutoDownload && (earliestUserInfo == null || u.LastRefreshedOn < earliestUserInfo.LastRefreshedOn))
{
earliestUserInfo = u;
}
}
}
if (earliestUserInfo != null)
{
DateTime earliestStartTime = earliestUserInfo.LastRefreshedOn.AddHours(7.0);
DateTime now = DateTime.UtcNow;
if (earliestStartTime <= now)
{
try {
await DoFetch(RNG, earliestUserInfo, Form, CancelToken);
} finally {
if (!CancelToken.IsCancellationRequested)
{
earliestUserInfo.LastRefreshedOn = now;
if (earliestUserInfo.Persistable)
{
UserInfoPersister.AddOrUpdate(earliestUserInfo);
UserInfoPersister.Save();
}
}
}
}
}
} catch (Exception ex) {
Form.AddStatusMessage("Error during fetch: " + ex.ToString());
}
}
}
