/// <inheritdoc />
protected override async Task OnProcessAsync(CancellationToken cancellationToken = default)
{
await RunAsync(null, cancellationToken);
var s = Arguments.Verb?.TryGet(0);
var console = GetConsole();
if (s == "period" || s == "p" || s == "周期" || (s == "Period" && Arguments.Verb.Count > 1))
{
s = Arguments.Verb.TryGet(1);
if (string.IsNullOrEmpty(s))
{
ChemistryCommandLine.WriteTable(GetConsole(), ChemicalElementStyle);
}
else if (int.TryParse(s, out var period) && period > 0)
{
if (period > 7)
{
var start = ChemicalElement.FirstAtomicNumberInPeriod(period);
var end = ChemicalElement.LastAtomicNumberInPeriod(period);
if (start <= 0 || end <= 0 || start >= end)
{
WriteError(" The period was too large.");
}
else
{
console.WriteLine(ChemistryResource.ChemicalElement);
console.WriteLine($"{start} - {end} (Total {end - start + 1})");
}
return;
}
var elements = ChemicalElement.GetExisted();
var has = false;
foreach (var element in elements)
{
if (element is null)
{
continue;
}
if (element.Period != period)
{
if (has)
{
break;
}
continue;
}
WriteSimpleInfo(element, Arguments.Has("en"));
}
}
else if (s.Equals("help", StringComparison.OrdinalIgnoreCase) || s.Equals("?", StringComparison.Ordinal))
{
WriteHelp(Arguments.Verb?.Key, "period");
}
else
{
WriteError(" The period should be a natural number.");
}
return;
}
var q = Arguments.GetMergedValue("q")?.Trim();
if (q.Length < 1)
{
q = null;
}
if (s == "*" || s == "all" || s == "a")
{
foreach (var i in ChemicalElement.Where(GetFilter(q)))
{
WriteSimpleInfo(i, Arguments.Has("en"));
}
return;
}
if (s == "ls" || s == "l" || s == "list" || s == "dir" || s == "全部")
{
var filter = Arguments.Verb.TryGet(1)?.Trim()?.Split('-');
List <ChemicalElement> col = null;
if (filter is null || filter.Length < 1 || string.IsNullOrWhiteSpace(filter[0]))
{
}
else if (filter[0].Equals("help", StringComparison.OrdinalIgnoreCase) || filter[0].Equals("?", StringComparison.Ordinal))
{
WriteHelp(Arguments.Verb?.Key, "ls");
return;
}
else if (!int.TryParse(filter[0], out var begin))
{
}
else if (filter.Length == 1)
{
col = ChemicalElement.Range(0, begin).ToList();
}
else if (filter.Length == 2 && int.TryParse(filter[1], out var end))
{
col = ChemicalElement.Range(begin, end - begin).ToList();
}
if (col is null)
{
col = ChemicalElement.Where(null).ToList();
}
var filter2 = GetFilter(q);
foreach (var i in filter2 is null ? col : col.Where(filter2))
{
WriteSimpleInfo(i, Arguments.Has("en"));
}
return;
}
