private async void StartFetching()
{
var ctx = new ReduxEntities();
var thumbnail = new Thumbnail();
thumbnail.Show();
while (IsCancelled == false)
{
var nextSixteen = (from item in ctx.scan_pips_contributors
where item.scanned == false
select item).Take(16).ToList();
if (nextSixteen.Count == 0)
{
IsCancelled = true;
}
else
{
await TaskEx.WhenAll(from item in nextSixteen select FetchItemGenreAndIonAsync(item, thumbnail, this, IsTags, IsIonContributors, IsCategories));
ctx.SaveChanges();
}
}
IsRunning = false;
IsCancelled = false;
}
private async Task FetchItemGenreAndIonAsync(scan_pips_contributors item, Thumbnail thumbnail, IProgress progress, bool isTags, bool isIonContributors, bool isCategories)
{
if (progress.IsCancelled)
{
return;
}
thumbnail.ShowImage("http://node2.bbcimg.co.uk/iplayer/images/episode/" + item.pid + "_314_176.jpg");
try
{
if (isTags || isIonContributors)
{
WebClient client = new WebClient();
string result = await client.DownloadStringTaskAsync("http://www.bbc.co.uk/iplayer/ion/episodedetail/episode/" + item.pid + "/format/xml");
XElement episode = XElement.Parse(result);
XNamespace ion = "http://bbc.co.uk/2008/iplayer/ion";
if (isIonContributors)
{
await TaskEx.Run(() =>
{
var contributors = episode.Elements(ion + "blocklist")
.Elements(ion + "episode_detail")
.Elements(ion + "contributors")
.Elements(ion + "contributor");
var data = new ReduxEntities();
foreach (var contributor in contributors)
{
var ct = new contributor
{
character_name = contributor.Element(ion + "character_name").Value,
family_name = contributor.Element(ion + "family_name").Value,
given_name = contributor.Element(ion + "given_name").Value,
role = contributor.Element(ion + "role").Value,
role_name = contributor.Element(ion + "role_name").Value,
type = contributor.Element(ion + "type").Value,
contributor_id = Convert.ToInt32(contributor.Element(ion + "id").Value),
pid = item.pid
};
data.AddObject("contributors", ct);
}
data.SaveChanges();
});
}
if (isTags)
{
await TaskEx.Run(() =>
{
var tags = episode.Elements(ion + "blocklist")
.Elements(ion + "episode_detail")
.Elements(ion + "tag_schemes")
.Elements(ion + "tag_scheme")
.Elements(ion + "tags")
.Elements(ion + "tag");
var data = new ReduxEntities();
foreach (var tag in tags)
{
var tg = new tag
{
tag_id = tag.Element(ion + "id").Value,
name = tag.Element(ion + "name").Value,
value = tag.Element(ion + "value").Value,
pid = item.pid
};
data.AddObject("tags", tg);
}
data.SaveChanges();
});
}
}
if (isCategories)
{
WebClient catClient = new WebClient();
var catresult = await catClient.DownloadStringTaskAsync("http://www.bbc.co.uk/programmes/" + item.pid + ".xml");
var root = XElement.Parse(catresult);
await TaskEx.Run(() =>
{
var cats = from cat in root.XPathSelectElements("categories/category[@type != 'genre']")
select new category()
{
pid = item.pid,
type = cat.Attribute("type").Value,
catkey = cat.Attribute("key").Value,
title = cat.Element("title").Value
};
var db = new ReduxEntities();
foreach (var c in cats)
{
db.AddObject("categories", c);
}
db.SaveChanges();
});
}
item.scanned = true;
}
catch (WebException wex)
{
MessageBox.Show("Can't find programme " + item.pid);
//throw new Exception("Couldn't find programme " + item.pid, wex);
}
}
private void ListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var g = ((ListBox)sender).SelectedItem as GenrePid;
var ctx = new ReduxEntities();
var path = ctx.genre_pids.First(ge => ge.path == GenrePath.Path);
path.pid = g.Pid;
ctx.SaveChanges();
GenrePath.Pid = g.Pid;
}
// This is a quick(ish) way to scan all the programmes in pips_programmes
// and find all gaps in the schedule.
// Note that this process will find all actual gaps where
// the channel is not transmitting
private void ScanGaps_Click(object sender, RoutedEventArgs e)
{
List<Gap> gaps = new List<Gap>();
Task.Factory.StartNew(() =>
{
StringBuilder sql = new StringBuilder();
sql.AppendLine("insert into gaps (programme_id, service_id, gapstart,gapend)");// VALUES(1234,1,"2007-06-28 03:00","2007-06-28 06:00")
using (var data = new ReduxEntities())
{
var programmes = (from prog in data.pips_programmes
//orderby prog.ServiceId, prog.StartTime
select prog).ToList();
programmes = (from prog in programmes
orderby prog.service_id, prog.start_gmt
select prog).ToList();
pips_programmes prev = null;
using (var newdata = new ReduxEntities())
{
foreach (var prog in programmes)
{
if (prev != null && prev.service_id == prog.service_id && prev.end_gmt < prog.start_gmt)
{
gap gap = new gap
{
programme_id = prog.id,
service_id = prog.service_id,
gapstart = prev.end_gmt,
gapend = prog.start_gmt
};
newdata.gaps.AddObject(gap);
Dispatcher.Invoke((MyDelegate)delegate { gapLabel.Content = string.Format("{0}", gap.gapstart); });
}
if (prev == null || prog.service_id != prev.service_id || prog.end_gmt > prev.end_gmt)
{
prev = prog;
}
}
newdata.SaveChanges();
}
Dispatcher.Invoke((MyDelegate)delegate { gapGrid.ItemsSource = data.gaps; });
}
});
}