44 lines
1.2 KiB
C#
44 lines
1.2 KiB
C#
using Barcode.Host.Server.Models;
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using Barcode.Host.Shared.Models.Stateless;
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using System.Text;
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namespace Barcode.Host.Server.Services;
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public class SerialService : ISerialService
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{
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private string _LastRaw;
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private readonly AppSettings _AppSettings;
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private readonly System.IO.Ports.SerialPort _SerialPort;
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public SerialService(AppSettings appSettings)
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{
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_LastRaw = string.Empty;
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_AppSettings = appSettings;
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_SerialPort = new("/dev/ttyUSB0", 9600) { ReadTimeout = 2 };
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}
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void ISerialService.Open() =>
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_SerialPort.Open();
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void ISerialService.Close() =>
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_SerialPort.Close();
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void ISerialService.SerialPortWrite(int count, string raw)
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{
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if (raw != _LastRaw)
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{
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string message;
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if (count == _AppSettings.ExpectedScanLengthA)
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message = $" {raw[2..]} {DateTime.Now:h:m tt}";
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else if (count == _AppSettings.ExpectedScanLengthB)
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message = $" {raw[2..]}";
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else
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message = $" {raw}";
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byte[] bytes = Encoding.ASCII.GetBytes(message);
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_SerialPort.Write(bytes, 0, bytes.Length);
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_LastRaw = raw;
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}
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}
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} |