/// <summary>
/// Get the forum adapter for the provided quest.
/// </summary>
/// <param name="quest">The quest to get a forum adapter for.</param>
/// <param name="token">The cancellation token.</param>
/// <returns>Returns the forum adapter that knows how to read the forum of the quest thread.</returns>
private async Task <IForumAdapter> GetForumAdapterAsync(IQuest quest, CancellationToken token)
{
if (quest.ForumType == ForumType.Unknown)
{
quest.ForumType = await ForumIdentifier.IdentifyForumTypeAsync(quest.ThreadUri, token).ConfigureAwait(false);
}
var adapter = ForumAdapterSelector.GetForumAdapter(quest.ForumType, quest.ThreadUri);
quest.ForumAdapter = adapter;
return(adapter);
}
/// <summary>
/// Gets a forum adapter to match the provided forum type and Uri.
/// </summary>
/// <param name="forumType">The type of forum being requested.</param>
/// <param name="site">The Uri of the site the adapter is for.</param>
/// <returns>Returns a forum adapter matching the forum type, initialized to the provided Uri.</returns>
//public static IForumAdapter GetForumAdapter(ForumType forumType, Uri site)
public static async Task <IForumAdapter> GetForumAdapterAsync(Uri site, CancellationToken token)
{
if (site == null)
{
throw new ArgumentNullException(nameof(site));
}
ForumType forumType = await ForumIdentifier.IdentifyForumTypeAsync(site, token);
if (!cachedAdapters.TryGetValue(forumType, out IForumAdapter adapter))
{
switch (forumType)
{
case ForumType.XenForo1:
adapter = new XenForo1Adapter(site);
break;
case ForumType.vBulletin3:
adapter = new vBulletin3Adapter(site);
break;
case ForumType.vBulletin4:
adapter = new vBulletin4Adapter(site);
break;
case ForumType.vBulletin5:
adapter = new vBulletin5Adapter(site);
break;
default:
throw new ArgumentException($"Unknown forum type: {forumType} for site {site.Host}", nameof(forumType));
}
cachedAdapters[forumType] = adapter;
}
else
{
adapter.Site = site;
}
return(adapter);
}
/// <summary>
/// Create a new forum adapter appropriate to the provided quest.
/// </summary>
/// <param name="quest">The quest that we need a forum adapter for.</param>
/// <param name="pageProvider">A page provider for requesting a page from the web site, if needed.</param>
/// <param name="token">A cancellation token for if we need to make a web request.</param>
/// <returns>Returns a forum adapter for the quest.</returns>
public async Task <IForumAdapter2> CreateForumAdapterAsync(IQuest quest, IPageProvider pageProvider, CancellationToken token)
{
if (quest.ThreadUri == Quest.InvalidThreadUri)
{
throw new InvalidOperationException("Quest does not have a valid thread specified.");
}
if (quest.ForumType == ForumType.Unknown)
{
await ss.WaitAsync(token).ConfigureAwait(false);
try
{
quest.ForumType = await ForumIdentifier.IdentifyForumTypeAsync(quest.ThreadUri, pageProvider, token);
}
finally
{
ss.Release();
}
}
return(CreateForumAdapter(quest.ForumType, quest.ThreadUri));
}
