private static SampleFolderViewModel PopulateRandomly(string path, int numFiles, int numFolders, int nestedLevels)
{
var result = new SampleFolderViewModel
{
Name = Path.GetFileName(path)
};
for (var i = 0; i < numFiles; ++i)
{
var name = Path.GetRandomFileName();
var nestedPath = Path.Combine(path, name + ".xml");
File.WriteAllText(nestedPath, "N/A");
result.Items.Add(new FileSampleViewModel(nestedPath));
}
if (nestedLevels <= 0)
{
return(result);
}
for (var i = 0; i < numFolders; ++i)
{
var name = Path.GetRandomFileName();
var nestedPath = Path.Combine(path, name);
Directory.CreateDirectory(nestedPath);
result.Items.Add(PopulateRandomly(nestedPath, numFiles, numFolders, nestedLevels - 1));
}
return(result);
}
private static SampleFolderViewModel?ScanSampleFolder(string path)
{
var result = new SampleFolderViewModel
{
Name = new DirectoryInfo(path).Name,
};
foreach (var directory in Directory.GetDirectories(path))
{
var folder = ScanSampleFolder(directory);
if (folder == null)
{
continue;
}
result.Items.Add(folder);
}
foreach (var file in Directory.GetFiles(path, "*.xml"))
{
result.Items.Add(new FileSampleViewModel(file));
}
return(result.Items.Count > 0 ? result : null);
}
private static void ScanResult(SampleFolderViewModel result, Action <ISampleMenuItem> action)
{
action(result);
foreach (var item in result.Items)
{
if (item is SampleFolderViewModel folder)
{
ScanResult(folder, action);
}
else
{
action(item);
}
}
}
public static SampleFolderViewModel?LoadXmlSamples(IEnumerable <string> sources, bool showDefault)
{
var root = new SampleFolderViewModel
{
Name = "XML Sample",
};
foreach (var source in sources)
{
if (string.IsNullOrWhiteSpace(source))
{
continue;
}
var trimmed = source.Trim();
if (trimmed.EndsWith(".xml", StringComparison.InvariantCultureIgnoreCase) && File.Exists(trimmed))
{
root.Items.Add(new FileSampleViewModel(trimmed));
}
if (!Directory.Exists(trimmed))
{
continue;
}
var folder = ScanSampleFolder(trimmed);
if (folder == null)
{
continue;
}
root.Items.Add(folder);
}
if (showDefault)
{
foreach (var sample in EmbeddedSampleViewModel.GetFromAssembly())
{
root.Items.Add(sample);
}
}
return(root.Items.Count > 0 ? root : null);
}
private static void AssertConsistency(SampleFolderViewModel expected, SampleFolderViewModel actual, string path = null)
{
path = $"{path}/{expected.Name}";
// For simplicity, it is not checked whether actual contains more items than expected
foreach (var item in expected.Items)
{
if (item is SampleFolderViewModel folder)
{
var other = actual.Items.OfType <SampleFolderViewModel>().FirstOrDefault(x => x.Name == item.Name);
Assert.NotNull(other, $"Could not find folder {path}/{item.Name}");
AssertConsistency(folder, other, path);
}
else
{
var other = actual.Items.OfType <FileSampleViewModel>().FirstOrDefault(x => x.Name == item.Name);
Assert.NotNull(other, $"Could not find file {path}/{item.Name}");
}
}
}
