public NormalizedRemoteSystem SelectHighScoreItem()
{
lock (RemoteSystems)
{
try
{
if (RemoteSystems.Count == 0)
{
return(null);
}
SelectedRemoteSystem = null;
Sort();
if (RemoteSystems.Count == 0)
{
return(null);
}
NormalizedRemoteSystem output = RemoteSystems[0];
Select(output, false);
return(output);
}
catch (Exception ex)
{
Debug.WriteLine($"Exception in SelectHighScoreItem(): {ex.Message}");
return(null);
}
}
}
public List <NormalizedRemoteSystem> GetSortedList(NormalizedRemoteSystem selected)
{
lock (RemoteSystems)
{
var output = new List <NormalizedRemoteSystem>();
foreach (var item in devices.Select(x => attrNormalizer.Normalize(x)).Where(x => x.Kind != "Unknown").OrderBy(x => x.DisplayName).OrderBy(x => CalculateScore(x)).OrderByDescending(x => x.IsAvailableByProximity))
{
if (item.Id != selected?.Id)
{
output.Add(item);
}
}
return(output);
}
}
private async void Select(object o, bool updateHistory)
{
if (!(o is NormalizedRemoteSystem))
{
Select(attrNormalizer.Normalize(o), updateHistory);
return;
}
var rs = o as NormalizedRemoteSystem;
if (updateHistory)
{
if (selectCounts.ContainsKey(rs.Id))
{
selectCounts[rs.Id]++;
}
else
{
selectCounts[rs.Id] = _initialCountValue;
}
await DataStorageProviders.SettingsManager.OpenAsync();
lock (dbLock)
{
DataStorageProviders.SettingsManager.Add("selectCounts", JsonConvert.SerializeObject(selectCounts));
DataStorageProviders.SettingsManager.Close();
}
}
SelectedRemoteSystem = rs;
Sort();
System.Diagnostics.Debug.WriteLine("Scores are:");
foreach (var item in RemoteSystems)
{
System.Diagnostics.Debug.WriteLine(item.DisplayName + " : " + CalculateScore(item));
}
System.Diagnostics.Debug.WriteLine("");
System.Diagnostics.Debug.WriteLine("");
}
private double CalculateScore(NormalizedRemoteSystem rs)
{
if (!selectCounts.ContainsKey(rs.Id))
{
if (rs.IsAvailableByProximity)
{
return(0.1);
}
return(0);
}
uint maximum = selectCounts.Values.Max();
double selectScore;
if (maximum < 10)
{
selectScore = selectCounts[rs.Id];
}
else if (maximum < 20)
{
selectScore = 3.0 * Math.Ceiling(((double)selectCounts[rs.Id]) / 3.0);
}
else
{
selectScore = 5.0 * Math.Ceiling(((double)selectCounts[rs.Id]) / 5.0);
}
double proximityCoeff = 1.0;
if (rs.IsAvailableByProximity)
{
proximityCoeff = 1.2;
}
return(proximityCoeff * selectScore);
}
