private void DownloadLinks(CancellationToken token)
{
try
{
var posts = _links.GroupBy(x => x.Post.Id).ToDictionary(x => x.Key, x => x.ToList());
var ripper = new Core.RedditRip(txtFilter.Text, false, bAllowNsfw.Checked, bOnlyNsfw.Checked,
bVerbose.Checked);
var tasks = new List <Task>();
foreach (var post in posts)
{
token.ThrowIfCancellationRequested();
var downloadPostTask =
ripper.DownloadPost(post, txtDestination.Text, token)
.ContinueWith(antecedent =>
{
var link = post.Value.FirstOrDefault();
OutputLine("Finished downloading post: " +
(link != null ? link.Post.SubredditName + "/" : string.Empty) + post.Key);
}, token);
tasks.Add(downloadPostTask);
}
var downloadBatches = Batch(tasks, 10).ToList();
var batchCount = downloadBatches.Count;
Task[] curretTasks = null;
for (var i = 0; i < batchCount; i++)
{
var batch = downloadBatches.First();
curretTasks = batch.ToArray();
Task.WaitAll(curretTasks);
downloadBatches.Remove(batch);
}
if (curretTasks.ToList().All(x => x.IsCompleted))
{
OutputLine("Finished downloading.");
EnableGetLinksButton(true);
}
}
catch (OperationCanceledException)
{
OutputLine("Downloads canceled by user.");
}
catch (Exception e)
{
OutputLine("Unexpected Error Occured: " + e.Message);
}
finally
{
EnableCancelButton(false);
}
}
private async Task <List <ImageLink> > GetImgurLinksFromRedditSub(IEnumerable <String> subReddits, String filter, Boolean allowNsfw, Boolean onlyNsfw, SearchRange searchRange, Sorting sortOrder, CancellationToken token)
{
var tasks = new List <Task>();
var ripper = new Core.RedditRip(filter, false, allowNsfw, onlyNsfw, bVerbose.Checked);
var reddit = new Reddit();
var imageLinks = new List <ImageLink>();
if (subReddits.Any())
{
tasks.AddRange(
subReddits.Where(x => !String.IsNullOrWhiteSpace(x))
.Select(sub => ripper.GetImgurLinksFromSubReddit(reddit, sub, searchRange, sortOrder, String.Empty, token))); //TODO:: Refactor destination out of saving links
}
await Task.WhenAll(tasks.ToArray());
imageLinks = tasks.Cast <Task <List <ImageLink> > >().Aggregate(imageLinks, (current, task) => CombineLinkLists(task.Result, current));
return(imageLinks);
}
