CreateAlbum(VK.UID page, string albumTitle)
{
// Check
HostSession.EnsureHasPermission(VK.SecurityFlag.Audios);
if (!page.IsValid)
throw new ArgumentException("Invalid page UID specified.");
else if (!page.IsCommunity && page != HostSession.UserPage)
throw new ArgumentException("Cannot modify other's private page audios.");
else if (albumTitle == null)
throw new ArgumentNullException("albumTitle", "You have to specify audio album title.");
// Request
var args = new NameValueCollection();
if (page != HostSession.UserPage)
args.Add("group_id", page.AbsoluteValue.ToString());
args.Add("title", albumTitle);
#if NEWSTYLE
XmlElement response = await HostSession.Network.AsyncXmlMethodCall("audio.addAlbum", args);
#else
XmlElement response = HostSession.Network.XmlMethodCall("audio.addAlbum", args);
#endif
// Check
if (response == null || response["album_id"] == null)
throw new VK.APIImplException(HostSession, "audio.addAlbum", "Unexpected server reply.");
// Parse
var album = new VK.AudioAlbum();
album.Title = albumTitle;
album.ID = new VK.DualID(page, uint.Parse(response["album_id"].InnerText));
// Done
return album;
}
GetAlbums(VK.UID page, int offset, uint count)
{
// Check
HostSession.EnsureHasPermission(VK.SecurityFlag.Audios);
if (!page.IsValid)
throw new ArgumentException("Invalid page UID specified.");
else if (count < 1 || count > 100)
throw new ArgumentOutOfRangeException("count", "Count of albums to fetch per one request must be in range [1-100].");
else if (offset < -1)
throw new ArgumentOutOfRangeException("offset", "Invalid 'offset' value.");
// Request
var args = new NameValueCollection();
args.Add("owner_id", page.ToString());
if (offset != -1)
args.Add("offset", offset.ToString());
args.Add("count", count.ToString());
#if NEWSTYLE
XmlElement response = await HostSession.Network.AsyncXmlMethodCall("audio.getAlbums", args);
#else
XmlElement response = HostSession.Network.XmlMethodCall("audio.getAlbums", args);
#endif
// Check
if (response == null)
throw new VK.APIImplException(HostSession, "audio.getAlbums", "Unexpected server reply.");
uint totalCount = 0;
// Parse
VK.AudioAlbum[] albums = null;
if (response.GetAttribute("list") == "true") // Notice: maybe this is incorrect, but currently okay
{
int iCount = 0;
foreach (XmlElement node in response.ChildNodes)
{
// Ensure it is what we expect
if (iCount == 0 && node.Name == "count")
{
// We have totalCount
totalCount = uint.Parse(node.InnerText);
if (count <= 0 || count > totalCount)
count = totalCount;
albums = new VK.AudioAlbum[count];
continue;
}
else if (node.Name != "album")
throw new NotSupportedException("Unknown node in xml server reply; expected 'album', got '" + node.Name + "'.");
albums[iCount++].Parse(node);
}
}
// Done
return new ArraySegment<VK.AudioAlbum,uint>(albums, totalCount);
}