web configuration

EpsonPrintService/PrintServerBootstrapper.cs

@@ -31,10 +31,32 @@ public class PrintServerBootstrapper
     {
         _kernel = new StandardKernel();
 
-        _kernel.Bind<IDiscoveryService>().To<DiscoveryService>().InSingletonScope();
         _kernel.Bind<HttpClient>().ToConstant(new HttpClient { Timeout = TimeSpan.FromSeconds(30) }).InSingletonScope();
         _kernel.Bind<EpsonPrintServiceConfiguration>().ToConstant(_config);
+
+        if (_config.EmulationMode)
+        {
+            var emulationConfigs = new Dictionary<string, (string OutputPath, byte PrinterId, int PaperWidth)>
+            {
+                ["127.0.0.2"] = ("emulation/u220.html", 0x13, 258),
+                ["127.0.0.3"] = ("emulation/t30.html", 0x01, 384),
+            };
+
+            var discovery = new PreconfiguredDiscoveryService();
+            discovery.AddPrinter("127.0.0.2", "TM-U220II");
+            discovery.AddPrinter("127.0.0.3", "TM-T30III");
+            _kernel.Bind<IDiscoveryService>().ToConstant(discovery).InSingletonScope();
+
+            _kernel.Bind<IPrinterFactory>().ToMethod(ctx =>
+                new EmulationPrinterFactory(emulationConfigs, ctx.Kernel.Get<ILogger>()));
+
+            Console.WriteLine("Emulation mode enabled: 127.0.0.2 (TM-U220II), 127.0.0.3 (TM-T30III)");
+        }
+        else
+        {
+            _kernel.Bind<IDiscoveryService>().To<DiscoveryService>().InSingletonScope();
             _kernel.Bind<IPrinterFactory>().To<EpsonPrinterFactory>();
+        }
         _kernel.Bind<IPrintJobSource, SignalRPrintJobSource>().To<SignalRPrintJobSource>().InSingletonScope();
         _kernel.Bind<IPrintService>().To<Inspectron.Epson.PrintServer.PrintServices.EpsonPrintService>();
         _kernel.Bind<ILogger>().ToMethod(ctx =>

EpsonPrintService/Program.cs

@@ -3,6 +3,7 @@ using Inspectron.Epson.PrintServer.ConfigurationSources;
 
 // Load configuration (may be absent on first boot)
 var configResult = ConfigurationLoader.TryLoadFromFile();
+configResult.Config.EmulationMode = true;
 EpsonPrintServiceConfiguration? activeConfig = null;
 
 if (configResult.Success)

Inspectron.Epson/EmulationPrinterProxy.cs

@@ -0,0 +1,79 @@
+using Microsoft.Extensions.Logging;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.PixelFormats;
+
+namespace Inspectron.Epson;
+
+/// <summary>
+/// IEpsonPrinter proxy that defers HtmlPrinter creation until ConnectAsync is called,
+/// selecting the correct configuration (output file, printer ID, paper width) based on the IP address.
+/// </summary>
+public class EmulationPrinterProxy : IEpsonPrinter
+{
+    private readonly Dictionary<string, (string OutputPath, byte PrinterId, int PaperWidth)> _printerConfigs;
+    private readonly ILogger? _logger;
+    private HtmlPrinter? _inner;
+
+    public EmulationPrinterProxy(
+        Dictionary<string, (string OutputPath, byte PrinterId, int PaperWidth)> printerConfigs,
+        ILogger? logger = null)
+    {
+        _printerConfigs = printerConfigs;
+        _logger = logger;
+    }
+
+    public bool IsConnected => _inner?.IsConnected ?? false;
+
+    public Task ConnectAsync(string ip, int port = 9100, int timeoutSeconds = 10)
+    {
+        if (!_printerConfigs.TryGetValue(ip, out var config))
+            throw new EpsonConnectionException($"No emulation configuration for IP {ip}");
+
+        _logger?.LogInformation("EmulationPrinterProxy: Creating HtmlPrinter for {IP} (id=0x{Id:X2}, width={Width}px, output={Path})",
+            ip, config.PrinterId, config.PaperWidth, config.OutputPath);
+
+        _inner = new HtmlPrinter(config.OutputPath, config.PaperWidth, _logger, config.PrinterId);
+        return _inner.ConnectAsync(ip, port, timeoutSeconds);
+    }
+
+    private HtmlPrinter Inner => _inner ?? throw new EpsonConnectionException("Not connected. Call ConnectAsync first.");
+
+    public void Disconnect() => Inner.Disconnect();
+    public Task<PrinterStatus> GetPrinterStatusAsync() => Inner.GetPrinterStatusAsync();
+    public Task<OfflineStatus> GetOfflineStatusAsync() => Inner.GetOfflineStatusAsync();
+    public Task<ErrorStatus> GetErrorStatusAsync() => Inner.GetErrorStatusAsync();
+    public Task<PaperSensorStatus> GetPaperSensorStatusAsync() => Inner.GetPaperSensorStatusAsync();
+    public Task<byte> GetTM220StatusAsync() => Inner.GetTM220StatusAsync();
+    public Task<byte?> GetPrinterIdAsync() => Inner.GetPrinterIdAsync();
+    public Task<OverallStatus> GetOverallStatusAsync() => Inner.GetOverallStatusAsync();
+    public Task InitAsync() => Inner.InitAsync();
+    public Task SetQuadrupleMode(bool enable) => Inner.SetQuadrupleMode(enable);
+    public Task SetRedColor(bool enable) => Inner.SetRedColor(enable);
+    public Task SetEmphasized(bool enable) => Inner.SetEmphasized(enable);
+    public Task SelectFont(EpsonCommands.PrinterFont font) => Inner.SelectFont(font);
+    public Task SetBiggerFontTM220(bool biggerWidth, bool biggerHeight = false, bool secondaryFont = true) => Inner.SetBiggerFontTM220(biggerWidth, biggerHeight, secondaryFont);
+    public Task PrintTextAsync(string text) => Inner.PrintTextAsync(text);
+    public Task SetFontSizeAsync(int width, int height) => Inner.SetFontSizeAsync(width, height);
+    public Task PrintTextAndCutAsync(string text, int feedLines = 5) => Inner.PrintTextAndCutAsync(text, feedLines);
+    public Task PrintBuffer() => Inner.PrintBuffer();
+    public Task FeedLinesAsync(int lines) => Inner.FeedLinesAsync(lines);
+    public Task CutAsync(bool fullCut = true) => Inner.CutAsync(fullCut);
+    public Task LoadImageAsync(string imagePath, int maxWidth = 384) => Inner.LoadImageAsync(imagePath, maxWidth);
+    public Task LoadImageAsync(Stream imageStream, int maxWidth = 384) => Inner.LoadImageAsync(imageStream, maxWidth);
+    public Task LoadImageAsync(Image<Rgba32> image, int maxWidth = 384) => Inner.LoadImageAsync(image, maxWidth);
+    public Task PrintLoadedImage() => Inner.PrintLoadedImage();
+    public Task PrintImageBitModeAsync(string imagePath, EpsonCommands.BitImageMode mode = EpsonCommands.BitImageMode.SingleDensity8Dot, int maxWidth = 10) => Inner.PrintImageBitModeAsync(imagePath, mode, maxWidth);
+    public Task PrintImageBitModeAsync(Stream imageStream, EpsonCommands.BitImageMode mode = EpsonCommands.BitImageMode.DoubleDensity24Dot, int maxWidth = 384) => Inner.PrintImageBitModeAsync(imageStream, mode, maxWidth);
+    public Task PrintImageBitModeAsync(Image<Rgba32> image, EpsonCommands.BitImageMode mode, int maxWidth) => Inner.PrintImageBitModeAsync(image, mode, maxWidth);
+    public Task SendRawCommandAsync(byte[] command) => Inner.SendRawCommandAsync(command);
+    public Task SetAbsolutePrintPosition(int x) => Inner.SetAbsolutePrintPosition(x);
+    public Task SetDefaultLineSpacing() => Inner.SetDefaultLineSpacing();
+    public Task SetCustomLineSpacing(int spacing = 24) => Inner.SetCustomLineSpacing(spacing);
+
+    public ValueTask DisposeAsync()
+    {
+        if (_inner != null)
+            return _inner.DisposeAsync();
+        return ValueTask.CompletedTask;
+    }
+}

Inspectron.Epson/PrintServer/ConfigurationSources/EpsonPrintServiceConfiguration.cs

@@ -7,6 +7,5 @@ public class EpsonPrintServiceConfiguration
     public string RestaurantId { get; set; }
     public string ApiKey { get; set; }
     public string? ApiUrl { get; set; }
-    
-
+    public bool EmulationMode { get; set; }
 }

Inspectron.Epson/PrintServer/Printers/EmulationPrinterFactory.cs

@@ -0,0 +1,22 @@
+using Microsoft.Extensions.Logging;
+
+namespace Inspectron.Epson.PrintServer.Printers;
+
+public class EmulationPrinterFactory : IPrinterFactory
+{
+    private readonly Dictionary<string, (string OutputPath, byte PrinterId, int PaperWidth)> _printerConfigs;
+    private readonly ILogger _logger;
+
+    public EmulationPrinterFactory(
+        Dictionary<string, (string OutputPath, byte PrinterId, int PaperWidth)> printerConfigs,
+        ILogger logger)
+    {
+        _printerConfigs = printerConfigs;
+        _logger = logger;
+    }
+
+    public IEpsonPrinter CreatePrinter()
+    {
+        return new EmulationPrinterProxy(_printerConfigs, _logger);
+    }
+}