From 9680ab0ad309442310b7318b065bdc81f01a6830 Mon Sep 17 00:00:00 2001
From: EugeneTes <meelstorm@gmail.com>
Date: Thu, 3 Sep 2026 12:26:56 +0200
Subject: [PATCH] bind composite discovery and add emulated POS895

Epson printers answer ENPC and POS895/POS896 answer SPRT; only the
composite discovery service sees both. Wire CompositeDiscoveryService
(wrapping DiscoveryService + SprtDiscoveryService) into production DI,
and add a 576px emulated POS895 (127.0.0.4) alongside the existing
TM-U220II/TM-T30III emulation entries so receipt layouts can be
checked without hardware.

Claude-Session: https://claude.ai/code/session_01E6N3P4nSZLtp4BC2LXVref
---
 EpsonPrintService/PrintServerBootstrapper.cs | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/EpsonPrintService/PrintServerBootstrapper.cs b/EpsonPrintService/PrintServerBootstrapper.cs
index 40f5906..81a319f 100644
--- a/EpsonPrintService/PrintServerBootstrapper.cs
+++ b/EpsonPrintService/PrintServerBootstrapper.cs
@@ -53,17 +53,19 @@ public class PrintServerBootstrapper
             {
                 ["127.0.0.2"] = ("emulation/u220.html", 0x13, 258),
                 ["127.0.0.3"] = ("emulation/t30.html", 0x01, 384),
+                ["127.0.0.4"] = ("emulation/pos895.html", 0x20, 576),
             };
 
             var discovery = new PreconfiguredDiscoveryService();
             discovery.AddPrinter("127.0.0.2", "TM-U220II");
             discovery.AddPrinter("127.0.0.3", "TM-T30III");
+            discovery.AddPrinter("127.0.0.4", "POS895");
             _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)");
+            Console.WriteLine("Emulation mode enabled: 127.0.0.2 (TM-U220II), 127.0.0.3 (TM-T30III), 127.0.0.4 (POS895)");
         }
         else
         {
@@ -74,7 +76,19 @@ public class PrintServerBootstrapper
             //discovery.AddPrinter("192.168.1.124", "TM-T30III");
             //_kernel.Bind<IDiscoveryService>().ToConstant(discovery).InSingletonScope();\
 
-            _kernel.Bind<IDiscoveryService>().To<DiscoveryService>().InSingletonScope();
+            // Epson printers answer ENPC; POS895/POS896 answer SPRT. Both broadcast
+            // on UDP 3289, but only the composite sees them all.
+            _kernel.Bind<IDiscoveryService>().ToMethod(ctx =>
+            {
+                var logger = ctx.Kernel.Get<ILogger>();
+                return new CompositeDiscoveryService(
+                    new IDiscoveryService[]
+                    {
+                        new DiscoveryService(logger),
+                        new SprtDiscoveryService(logger)
+                    },
+                    logger);
+            }).InSingletonScope();
             _kernel.Bind<IPrinterFactory>().To<EpsonPrinterFactory>();
         }
         _kernel.Bind<IPrintJobSource, SignalRPrintJobSource>().To<SignalRPrintJobSource>().InSingletonScope();