public void PrintHelp(IEnumerable <string> actionRouteParts)
{
var help = _helpGenerator.CreateHelp(actionRouteParts);
_sysConsole
.WriteLine()
.WriteLine(help.HelpText)
.WriteLine()
.WriteLine("Syntax:")
.WriteLine($" {help.Syntax}");
PrintHelpEntries(help.OptionsHelp.ValueHelpEntries, "Arguments:");
PrintHelpEntries(help.OptionsHelp.ParameterHelpEntries, "Options:");
_sysConsole.WriteLine();
}
public static TItem?SelectItem <TItem>(this ISysConsole sysConsole, IEnumerable <TItem> items, Func <TItem, string?> getCaption, TItem?defaultItem)
{
var selectionList = items
.SelectWithIndex()
.Select(x => new { Number = x.Index + 1, Text = getCaption(x.Data), Item = x.Data })
.ToArray();
selectionList.ForEach(x => sysConsole.WriteLine($"[{x.Number}]: {x.Text}"));
var selection = sysConsole.ReadLine();
if (!int.TryParse(selection, out var selectionNumber))
{
throw new InvalidOperationException();
}
var selectedItem = selectionList.FirstOrDefault(x => x.Number == selectionNumber);
return(selectedItem is null
? defaultItem
: selectedItem.Item);
}