public static ParseResult TryParse(byte[] message, out DecodeMessage decodeMessage)
{
if (!Enumerable.SequenceEqual(message.Take(4), new byte[] { 0xad, 0xbc, 0xcb, 0xda }))
{
decodeMessage = null;
return(ParseResult.InvalidMagicNumber);
}
decodeMessage = new DecodeMessage();
int cur = 4; // length of magic number
decodeMessage.SchemaVersion = GetInt32(message, ref cur);
if (GetInt32(message, ref cur) != DECODE_MESSAGE_TYPE)
{
return(ParseResult.NotADecodeMessage);
}
decodeMessage.Id = GetString(message, ref cur);
decodeMessage.New = GetBool(message, ref cur);
decodeMessage.SinceMidnight = TimeSpan.FromMilliseconds(GetInt32(message, ref cur));
decodeMessage.Snr = GetInt32(message, ref cur);
decodeMessage.DeltaTime = GetDouble(message, ref cur);
decodeMessage.DeltaFrequency = GetInt32(message, ref cur);
decodeMessage.Mode = GetString(message, ref cur);
decodeMessage.Message = GetString(message, ref cur);
decodeMessage.LowConfidence = GetBool(message, ref cur);
decodeMessage.OffAir = GetBool(message, ref cur);
return(ParseResult.Success);
}
static void Main(string[] args)
{
bool all = args.Any(a => a == "--all");
bool grids = args.Any(a => a == "--grids");
string bandArg = args.SingleOrDefault(a => a.EndsWith("m"));
if (string.IsNullOrWhiteSpace(bandArg) || !int.TryParse(bandArg.Substring(0, bandArg.Length - 1).Replace("--", ""), out int band))
{
band = 20;
}
Console.WriteLine($"Selected {band}m, specify (e.g.) --6m for another band");
if (!all)
{
Console.WriteLine("Only showing needed spots. Pass --all for all spots.");
}
if (!grids)
{
Console.WriteLine("Not looking for unworked grids. Pass --grids to turn this on.");
}
if (args.Any(a => a == "--help" || a == "-h" || a == "/?"))
{
Console.WriteLine(@"A work in progress, that listens to udp://localhost:2237 for WSJT-X, works out the DXCC entity of every call
heard using Clublog's cty.xml, then queries a Cloudlog instance via its API to see if it's a needed slot. If
it is, it highlights the call in red in the console window.");
return;
}
if (!File.Exists(configFile) || File.ReadAllText(configFile).Contains(connectionStringKey))
{
Console.WriteLine("You need to provide a Cloudlog URL, e.g. https://mycloudloginstance.net");
Console.WriteLine("in order for ft8spotter to check spots against Cloudlog. Please provide it now...");
string url = Console.ReadLine();
string dir = Path.GetDirectoryName(configFile);
if (!Directory.Exists(dir))
{
Directory.CreateDirectory(dir);
}
File.WriteAllText(configFile, $"{urlKey}={url}");
}
var config = GetConfig();
cloudLogUri = new Uri(new Uri(config[urlKey]), "index.php/api/");
var fi = new FileInfo("cty.xml");
bool isFresh = false;
if (DateTime.Now - fi.LastWriteTime > TimeSpan.FromDays(1))
{
var wc = new WebClient();
wc.DownloadFile("https://cdn.clublog.org/cty.php?api=a11c3235cd74b88212ce726857056939d52372bd&zip=1", "cty_new.xml.zip");
if (File.Exists("cty.xml.bak"))
{
File.Delete("cty.xml.bak");
}
File.Move("cty.xml", "cty.xml.bak");
ZipFile.ExtractToDirectory("cty_new.xml.zip", ".");
isFresh = true;
File.Delete("cty_new.xml.zip");
}
try
{
ctyXml = ClublogCtyXml.Parse(File.ReadAllText("cty.xml"));
}
catch (Exception ex)
{
if (isFresh)
{
File.Delete("cty.xml");
File.Move("cty.xml.bak", "cty.xml");
Console.WriteLine("Failed to update cty.xml");
ctyXml = ClublogCtyXml.Parse(File.ReadAllText("cty.xml"));
}
}
const int port = 2237;
using (var client = new UdpClient(port, AddressFamily.InterNetwork))
{
Console.WriteLine($"Listening for WSJT-X on UDP port {port}");
var sw = Stopwatch.StartNew();
while (true)
{
var ipep = new IPEndPoint(IPAddress.Loopback, 0);
byte[] msg = client.Receive(ref ipep);
if (ParseResult.Success != DecodeMessage.TryParse(msg, out DecodeMessage decodeMessage))
{
continue;
}
//if (msg[11] == 0x02)
//{
//string heardCall = GetHeardCall(msg);
string heardCall = GetHeardCall(decodeMessage.Message);
if (heardCall == null)
{
continue;
}
var entity = GetEntity(heardCall);
string grid = GetGrid(msg);
var needed = entity == null ? Needed.No : GetNeeded(band, entity.Adif, grids ? grid : null, "ft8");
if (all || !Needed.No.Equals(needed))
{
if (sw.Elapsed > TimeSpan.FromSeconds(5))
{
Console.WriteLine($"--- {DateTime.Now:HH:mm:ss} --------------------------");
sw.Restart();
}
var colBefore = Console.ForegroundColor;
if (needed.NewCountryOnAnyBand)
{
Console.ForegroundColor = ConsoleColor.Green;
}
else if (needed.NewCountryOnBand)
{
Console.ForegroundColor = ConsoleColor.Yellow;
}
else if (needed.NewCountryOnBandOnMode)
{
Console.ForegroundColor = ConsoleColor.DarkYellow;
}
else if (needed.NewGridOnAnyBand)
{
Console.ForegroundColor = ConsoleColor.Red;
}
else if (needed.NewGridOnBand)
{
Console.ForegroundColor = ConsoleColor.Magenta;
}
else if (needed.NewGridOnBandOnMode)
{
Console.ForegroundColor = ConsoleColor.DarkRed;
}
WriteAtColumn(0, needed, 19);
WriteAtColumn(19, heardCall, 10);
WriteAtColumn(30, decodeMessage.Snr, 4);
WriteAtColumn(34, IsGrid(grid) ? grid : String.Empty, 4);
WriteAtColumn(39, entity?.Adif, 3);
WriteAtColumn(43, (entity?.Entity) ?? "Unknown", 50);
Console.WriteLine();
Console.ForegroundColor = colBefore;
}
}
}
}
