/// <summary>
/// Helper to generate Test Data for Gui Testing
/// Fires OnVideosFetched in case of success (amount more than 0)
/// Fires OnVideosFetchErrorOccured in case of an error (amount less or equal to 0)
/// </summary>
/// <param name="videoUrl"></param>
/// <param name="amount"></param>
public void GenerateTestData(String videoUrl, int amount)
{
if (amount <= 0)
{
if (OnVideosFetchErrorOccured != null)
{
OnVideosFetchErrorOccured.Invoke(this, null);
}
return;
}
_videoInfos = new List <VideoInfo>();
for (int i = 0; i < amount; i++)
{
_videoInfos.Add(new VideoInfo
{
Description =
"A tutorial is a method of transferring knowledge and may be used as a part of a " +
"learning process. More interactive and specific than a book or a lecture; a " +
"tutorial seeks to teach by example and supply the information to complete a " +
"certain task.",
Id = i.ToString(CultureInfo.InvariantCulture),
Timestamp = DateTime.Now,
Title = "Tutorial - From Wikipedia, the free encyclopedia",
Url = videoUrl
});
}
if (OnVideosFetched != null)
{
OnVideosFetched.Invoke(this, new VideosFetchedEventArgs(_videoInfos));
}
}
/// <summary>
/// Retrieve Video Informations from Server asynchronously
/// Fires OnVideosFetched in case of success
/// Fires OnVideosFetchErrorOccured in case of an error
/// </summary>
public void GetVideoInformationFromServer()
{
try
{
_catInfos = new List <Category>();
XElement xraw = XElement.Load(_catUrl);
XElement xroot = XElement.Parse(xraw.ToString());
_catInfos =
(from item in xroot.Elements("category")
let id = item.Element("id")
let name = item.Element("name")
let subcat = item.Element("subcategories")
select new Category
{
Id = int.Parse(id.Value),
Name = name.Value,
Children = parseSubCat(subcat.ToString()),
}).ToList();
foreach (var element in _catInfos)
{
evalParents(element.Children, element);
}
if (OnCategoriesFetched != null)
{
OnCategoriesFetched.Invoke(this, new CategoriesFetchedEventArgs(_catInfos));
}
////////////////////////////////////////////////////////////////
_videoInfos = new List <VideoInfo>();
xraw = XElement.Load(_url);
xroot = XElement.Parse(xraw.ToString());
List <VideoInfo> links =
(from item in xroot.Descendants("video")
let id = item.Element("id")
let title = item.Element("title")
let description = item.Element("description")
let icon = item.Element("icon")
let url = item.Element("url")
let timestamp = item.Element("timestamp")
let cat = item.Element("category")
select new VideoInfo
{
Id = id.Value,
Title = title.Value,
Description = description.Value,
Icon = icon.Value,
Url = url.Value,
Timestamp = DateTimeFromUnixTimestampSeconds(timestamp.Value),
Category = int.Parse(cat.Value)
}).ToList();
_videoInfos = links;
if (OnVideosFetched != null)
{
OnVideosFetched.Invoke(this, new VideosFetchedEventArgs(links));
}
}
catch (Exception exception)
{
if (OnVideosFetchErrorOccured != null)
{
OnVideosFetchErrorOccured.Invoke(this, new ErrorEventArgs(exception));
}
}
}