public static void SendToDb(List <UsbPrinter> printers, ApplicationSettings config, ILogger <Worker> logger)
{
try
{
using (ApplicationContext db = new ApplicationContext(config))
{
foreach (UsbPrinter usbPrinter in printers)
{
UsbPrinter p = db.Printers.Include(x => x.Jobs)
.SingleOrDefault(x => x.HardwareSerial.Equals(usbPrinter.HardwareSerial));
if (p == null)
{
db.Printers.Add(usbPrinter);
db.SaveChanges();
logger.LogInformation(
$"Printer {usbPrinter.HardwareSerial} added to DB with {usbPrinter.Jobs.Count} job(s) at {DateTimeOffset.Now}");
}
else
{
if (usbPrinter.Jobs.Count != 0)
{
p.Jobs.AddRange(usbPrinter.Jobs);
db.SaveChanges();
logger.LogInformation($"Sent {usbPrinter.Jobs.Count} job(s) at {DateTimeOffset.Now}");
}
if (!p.LastKnowIp.Equals(usbPrinter.LastKnowIp))
{
p.LastKnowIp = usbPrinter.LastKnowIp;
db.SaveChanges();
logger.LogInformation(
$"IP of {usbPrinter.HardwareSerial} changed to {usbPrinter.LastKnowIp} at {DateTimeOffset.Now}");
}
}
}
if (config.IsWindows)
{
WindowsHelpers.ClearLog(logger);
}
else
{
LinuxHelpers.ClearLog(logger);
}
}
}
catch (SqlException sqlException)
{
foreach (SqlError sqlError in sqlException.Errors)
{
logger.LogError(sqlError.ToString());
}
}
catch (InvalidOperationException ioException)
{
logger.LogError(ioException.Message);
if (config.IsWindows)
{
WindowsHelpers.ClearLog(logger);
}
else
{
LinuxHelpers.ClearLog(logger);
}
}
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
try
{
if (config.IsWindows)
{
while (!stoppingToken.IsCancellationRequested)
{
Windows();
await Task.Delay(TimeSpan.FromMinutes(1), stoppingToken);
}
}
else
{
while (!stoppingToken.IsCancellationRequested)
{
Linux();
await Task.Delay(TimeSpan.FromMinutes(1), stoppingToken);
}
}
}
catch (TaskCanceledException)
{
}
catch (UnauthorizedAccessException e)
{
logger.LogError(e.Message);
}
catch (Exception e)
{
logger.LogCritical(e.ToString());
throw;
}
void Windows()
{
WindowsHelpers.CheckAndEnableLogging(logger);
List <UsbPrinter> printers = PrinterResolver.GetUsbPrintersData();
if (printers.Count != 0)
{
foreach (UsbPrinter usbPrinter in printers)
{
usbPrinter.Jobs = JobsParser.ParseJobsForPrinter(usbPrinter);
if (usbPrinter.Jobs.Count != 0)
{
DbSender.SendToDb(printers, config, logger);
}
}
}
else
{
logger.LogWarning($"No USB printer found at:{DateTimeOffset.Now}");
}
}
void Linux()
{
LinuxHelpers.CheckAndEnableLogging(logger);
List <UsbPrinter> printers = PageCounter.Linux.PrinterResolver.GetUsbPrintersData();
if (printers.Count != 0)
{
foreach (UsbPrinter usbPrinter in printers)
{
usbPrinter.Jobs = PageCounter.Linux.JobsParser.ParseJobsForPrinter(usbPrinter);
if (usbPrinter.Jobs.Count != 0)
{
DbSender.SendToDb(printers, config, logger);
}
}
}
else
{
logger.LogWarning($"No USB printer found at:{DateTimeOffset.Now}");
}
}
}