SerialPortTestView.xaml.Event.cs

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using System.Collections.ObjectModel;
using System.IO.Ports;
using Dreamine.Communication.Core.Protocols;
using SampleSmart.Pages.PageSub.CommunicationTabs;
 
namespace SampleSmart.Pages.PageSub.CommunicationTabs.Serial;

public sealed class SerialPortTestViewEvent
{
    private readonly CommunicationSampleRuntime _runtime;

    public SerialPortTestViewEvent(CommunicationSampleRuntime runtime)
    {
        _runtime = runtime ?? throw new ArgumentNullException(nameof(runtime));
 
        SerialPortNames = new ObservableCollection<string>();
 
        BaudRates =
        [
            9600,
            19200,
            38400,
            57600,
            115200
        ];
 
        SerialProtocols =
        [
            "PlainText",
            "RawAvailable",
            "RawJson"
        ];
 
        SelectedBaudRate = 9600;
        SelectedSerialProtocol = "RawAvailable";
        SelectedSerialEncoding = PlainTextProtocolOptions.Utf8EncodingName;
        SerialSendText = "test";
 
        RefreshPorts();
    }

    public ObservableCollection<string> SerialPortNames { get; }

    public IReadOnlyList<int> BaudRates { get; }

    public IReadOnlyList<string> SerialProtocols { get; }

    public IReadOnlyList<string> SerialEncodings => _runtime.TextEncodings;

    public string SelectedSerialPortName { get; set; } = string.Empty;

    public int SelectedBaudRate { get; set; }

    public string SelectedSerialProtocol { get; set; } = string.Empty;

    public string SelectedSerialEncoding { get; set; }

    public string SerialSendText { get; set; } = string.Empty;

    public string SerialSelectionSummary =>
        $"Port={SelectedSerialPortName}, BaudRate={SelectedBaudRate}, Protocol={SelectedSerialProtocol}, Encoding={SelectedSerialEncoding}";

    public void RefreshPorts()
    {
        SerialPortNames.Clear();
 
        var portNames = SerialPort.GetPortNames()
            .OrderBy(x => x, StringComparer.OrdinalIgnoreCase)
            .ToArray();
 
        if (portNames.Length == 0)
        {
            AddFallbackPorts();
        }
        else
        {
            foreach (var portName in portNames)
            {
                SerialPortNames.Add(portName);
            }
        }
 
        if (string.IsNullOrWhiteSpace(SelectedSerialPortName) ||
            !SerialPortNames.Contains(SelectedSerialPortName))
        {
            SelectedSerialPortName = SerialPortNames.FirstOrDefault() ?? string.Empty;
        }
    }

    public void ConnectSerial()
    {
        if (string.IsNullOrWhiteSpace(SelectedSerialPortName))
        {
            return;
        }
 
        _ = _runtime.ConnectSerialAsync(
            SelectedSerialPortName,
            SelectedBaudRate,
            SelectedSerialProtocol,
            SelectedSerialEncoding);
    }

    public void DisconnectSerial()
    {
        _ = _runtime.DisconnectSerialAsync();
    }

    public void SendSerial()
    {
        if (string.IsNullOrWhiteSpace(SerialSendText))
        {
            SerialSendText = "test";
        }
 
        _ = _runtime.SendSerialAsync(
            SelectedSerialProtocol,
            SerialSendText,
            SelectedSerialEncoding);
    }

    private void AddFallbackPorts()
    {
        for (var index = 1; index <= 10; index++)
        {
            SerialPortNames.Add($"COM{index}");
        }
    }
}