#!/usr/bin/env /Library/Frameworks/Mono.framework/Commands/csharp

using System.IO;
using System.Text;
using System.Xml;

var args = Environment.GetCommandLineArgs ();
var expectedArgumentCount = 1;
if (args.Length != expectedArgumentCount + 2 /* 2 default arguments (executable + script) + 'expectedArgumentCount' arguments we're interested in */) {
	// first arg is "/Library/Frameworks/Mono.framework/Versions/4.8.0/lib/mono/4.5/csharp.exe"
	// second arg the script itself
	// then comes the ones we care about
	Console.WriteLine ($"Need {expectedArgumentCount} arguments, got {args.Length - 2}");
	Environment.Exit (1);
	return;
}

var plistPath = args [2];
var doc = new XmlDocument ();
doc.Load (plistPath);
var nodes = doc.SelectNodes ($"/plist/dict/key[text()='KnownVersions']/following-sibling::dict[1]/key[text()='macOS']/following-sibling::array[1]/string");

var sb = new StringBuilder ();
foreach (XmlNode n in nodes)
	sb.Append ($"{n.InnerText} ");
Console.WriteLine (sb);

Environment.Exit (0);