/// <inheritdoc/>
public override Xml.InstanceSourceSettingsBase ToSettings()
{
return
(new Xml.LocalInstanceSourceSettings()
{
ConnectingInstance = ConnectingInstance?.Base,
ConnectingInstanceList = new Xml.InstanceRefList(
ConnectingInstanceList
.Select(inst =>
new Xml.InstanceRef()
{
Base = inst.Base,
Popularity = inst.Popularity,
ProfileList = new Xml.ProfileRefList(
ConnectingProfileList
.Where(prof => prof.Instance.Equals(inst))
.Select(prof => new Xml.ProfileRef()
{
ID = prof.ID,
DisplayName = prof.DisplayName,
Popularity = prof.Popularity
}))
}
))
});
}
/// <summary>
/// Removes given instance from history
/// </summary>
/// <param name="instance">Instance</param>
public override void ForgetInstance(Instance instance)
{
// Remove all instance profiles from history.
for (var i = ConnectingProfileList.Count; i-- > 0;)
{
if (ConnectingProfileList[i].Instance.Equals(instance))
{
ConnectingProfileList.RemoveAt(i);
}
}
// Remove the instance from history.
ConnectingInstanceList.Remove(instance);
if (ConnectingInstance != null && ConnectingInstance.Equals(instance))
{
base.ForgetInstance(instance);
// Reset authenticating instance.
AuthenticatingInstance = ConnectingInstance;
}
else
{
base.ForgetInstance(instance);
}
}
/// <summary>
/// Removes given instance from history
/// </summary>
/// <param name="instance">Instance</param>
public virtual void ForgetInstance(Instance instance)
{
// Reset connecting instance.
if (ConnectingInstance != null && ConnectingInstance.Equals(instance))
{
ConnectingInstance = ConnectingInstanceList.FirstOrDefault();
}
instance.Forget();
}
/// <summary>
/// Removes given instance from history
/// </summary>
/// <param name="instance">Instance</param>
public virtual void ForgetInstance(Instance instance)
{
// Remove the instance from history.
ConnectingInstanceList.Remove(instance);
// Reset connecting instance.
if (ConnectingInstance != null && ConnectingInstance.Equals(instance))
{
ConnectingInstance = ConnectingInstanceList.FirstOrDefault();
}
}
/// <summary>
/// Select connecting instance by URI
/// </summary>
/// <remarks>When the instance with given URI is no longer available, this method returns the most popular instance from the <see cref="ConnectingInstanceList"/> list.</remarks>
/// <param name="uri">Preferred instance URI</param>
/// <returns>Connecting instance</returns>
public Instance SelectConnectingInstance(Uri uri)
{
if (uri == null)
{
return(null);
}
// Find the connecting instance by URI.
var instance = ConnectingInstanceList.FirstOrDefault(inst => inst.Base.AbsoluteUri == uri.AbsoluteUri);
if (instance != null)
{
return(instance);
}
// The last connecting instance is no longer available. Select the most popular one among the remaining ones.
return(ConnectingInstanceList.Count > 0 ? ConnectingInstanceList.Aggregate((most_popular_instance, inst) => (most_popular_instance == null || inst.Popularity > most_popular_instance.Popularity ? inst : most_popular_instance)) : null);
}
/// <inheritdoc/>
public override void FromSettings(ConnectWizard wizard, Xml.InstanceSourceSettingsBase settings)
{
if (settings is Xml.LocalInstanceSourceSettings h_local)
{
// - Restore instance list.
// - Restore connecting instance (optional).
foreach (var h_instance in h_local.ConnectingInstanceList)
{
var connecting_instance = InstanceList.FirstOrDefault(inst => inst.Base.AbsoluteUri == h_instance.Base.AbsoluteUri);
if (connecting_instance == null)
{
// The connecting instance was not found. Could be user entered, or removed from discovery file.
connecting_instance = new Instance(h_instance.Base);
connecting_instance.RequestAuthorization += wizard.Instance_RequestAuthorization;
connecting_instance.ForgetAuthorization += wizard.Instance_ForgetAuthorization;
}
connecting_instance.Popularity = h_instance.Popularity;
// Restore connecting profiles (optionally).
ObservableCollection <Profile> profile_list = null;
try
{
switch (Properties.Settings.Default.ConnectingProfileSelectMode)
{
case 0:
case 2:
// This might trigger OAuth.
profile_list = connecting_instance.GetProfileList(connecting_instance, Window.Abort.Token);
break;
}
}
catch (OperationCanceledException) { throw; }
catch
{
// When profile list could not be obtained from the instance, instance settings should be forgotten to avoid issues next time.
connecting_instance.Forget();
continue;
}
switch (Properties.Settings.Default.ConnectingProfileSelectMode)
{
case 0:
{
// Restore only profiles user connected to before.
foreach (var h_profile in h_instance.ProfileList)
{
var profile = profile_list.FirstOrDefault(prof => prof.ID == h_profile.ID);
if (profile != null)
{
// Synchronise profile data.
h_profile.DisplayName = profile.DisplayName;
profile.Popularity = h_profile.Popularity;
}
else
{
// The profile is gone missing. Create an unavailable profile placeholder.
profile = new Profile
{
Instance = connecting_instance,
ID = h_profile.ID,
DisplayName = h_profile.DisplayName,
Popularity = h_profile.Popularity
};
profile.RequestAuthorization += (object sender_profile, RequestAuthorizationEventArgs e_profile) => connecting_instance.OnRequestAuthorization(connecting_instance, e_profile);
}
// Add to the list of connecting profiles.
if (ConnectingProfileList.FirstOrDefault(prof => prof.Equals(profile)) == null)
{
ConnectingProfileList.Add(profile);
}
}
}
break;
case 2:
{
// Add all available profiles to the connecting profile list.
// Restore popularity on the fly (or leave default to promote newly discovered profiles).
foreach (var profile in profile_list)
{
var h_profile = h_instance.ProfileList.FirstOrDefault(prof => prof.ID == profile.ID);
if (h_profile != null)
{
profile.Popularity = h_profile.Popularity;
}
ConnectingProfileList.Add(profile);
}
}
break;
}
var instance = ConnectingInstanceList.FirstOrDefault(inst => inst.Base.AbsoluteUri == connecting_instance.Base.AbsoluteUri);
if (instance == null)
{
ConnectingInstanceList.Add(connecting_instance);
}
}
ConnectingInstance = SelectConnectingInstance(h_local.ConnectingInstance);
}
}
