96 lines
2.6 KiB
C#
96 lines
2.6 KiB
C#
using CliWrap;
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using CliWrap.Buffered;
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using InnovEnergy.Lib.Utils;
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using static InnovEnergy.App.BmsTunnel.CliPrograms;
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namespace InnovEnergy.App.BmsTunnel;
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using Nodes = IReadOnlyList<Byte>;
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public static class BatteryTty
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{
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const String DevDir = "/dev";
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public static async Task<String?> GetTty()
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{
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Console.WriteLine("searching battery connection...");
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return await GetTtyFromDBus()
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?? await GetTtyFromDev();
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}
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private static async Task<String?> GetTtyFromDev()
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{
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var ttys = await FileSystem
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.Local
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.GetFiles(DevDir, FileType.CharacterDevice);
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var candidateTtys = ttys
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.Where(f => f.StartsWith(DevDir + "/ttyUSB"))
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.NotNull()
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.ToList();
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if (!candidateTtys.Any())
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{
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Console.WriteLine("no USB converter cable attached!");
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return null;
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}
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if (candidateTtys.Count == 1)
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return candidateTtys[0];
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return "Select TTY:".ChooseFrom(candidateTtys);
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}
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private static async Task<String?> GetTtyFromDBus()
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{
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var tty = await LsDBus
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.ExecuteBufferedAsync()
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.Select(ParseBatteryTty);
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if (tty == null)
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return null;
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Console.WriteLine("found battery on DBus");
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return $"{DevDir}/{tty}";
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}
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private static CommandTask<Nodes> GetNodes(String tty)
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{
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const String defaultArgs = "--system --print-reply --type=method_call / com.victronenergy.BusItem.GetValue";
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return DBusSend
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.AppendArgument($"--dest=com.victronenergy.battery.{tty}")
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.AppendArgument(defaultArgs)
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.ExecuteBufferedAsync()
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.Select(ParseBatteryNodes);
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}
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private static Nodes ParseBatteryNodes(BufferedCommandResult result)
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{
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return result
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.StandardOutput
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.Split(Environment.NewLine)
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.Where(l => l.Contains("_Battery/"))
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.Select(l => l.Split('/')[1])
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.Where(n => Byte.TryParse(n, out _))
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.Select(Byte.Parse)
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.Distinct()
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.OrderBy(n => n)
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.ToList();
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}
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private static String? ParseBatteryTty(BufferedCommandResult result)
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{
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return result
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.StandardOutput
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.Split(Environment.NewLine)
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.Where(l => l.Contains("com.victronenergy.battery."))
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.SelectMany(l => l.Split('.'))
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.LastOrDefault();
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}
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}
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