print server with new concept

Inspectron.Epson/PrintServer/DiscoveredPrintersReceiver/ConsoleDiscoveredPrintersReceiver.cs

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+using Inspectron.Epson;
+
+namespace EpsonPrintService;
+
+/// <summary>
+/// Simple console implementation that logs discovered printers to the console
+/// </summary>
+public class ConsoleDiscoveredPrintersReceiver : IDiscoveredPrintersReceiver
+{
+    public Task OnPrintersDiscoveredAsync(IReadOnlyList<DiscoveredPrinter> printers)
+    {
+        Console.WriteLine($"[{DateTime.Now:HH:mm:ss}] Discovered printers changed. Found {printers.Count} printer(s):");
+
+        foreach (var printer in printers)
+        {
+            Console.WriteLine($"  - {printer.IPAddress}");
+        }
+
+        if (printers.Count == 0)
+        {
+            Console.WriteLine("  (no printers found)");
+        }
+
+        return Task.CompletedTask;
+    }
+}

Inspectron.Epson/PrintServer/DiscoveredPrintersReceiver/IDiscoveredPrintersReceiver.cs

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+using Inspectron.Epson;
+
+namespace EpsonPrintService;
+
+/// <summary>
+/// Interface for receiving discovered printer updates
+/// </summary>
+public interface IDiscoveredPrintersReceiver
+{
+    /// <summary>
+    /// Called when the list of discovered printers has changed
+    /// </summary>
+    /// <param name="printers">The current list of discovered printers</param>
+    Task OnPrintersDiscoveredAsync(IReadOnlyList<DiscoveredPrinter> printers);
+}

Inspectron.Epson/PrintServer/DiscoveredPrintersReceiver/JamesDiscoveredPrintersReceiver.cs

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+using Inspectron.Epson;
+using Inspectron.Epson.PrintServer.ConfigurationSources;
+using System.Net.Http.Json;
+
+namespace EpsonPrintService;
+
+public class JamesDiscoveredPrintersReceiver: IDiscoveredPrintersReceiver
+{
+    private readonly EpsonPrintServiceConfiguration _configuration;
+    private readonly HttpClient _httpClient;
+
+    public JamesDiscoveredPrintersReceiver(EpsonPrintServiceConfiguration configuration, HttpClient httpClient)
+    {
+        _configuration = configuration;
+        _httpClient = httpClient;
+    }
+
+    public async Task OnPrintersDiscoveredAsync(IReadOnlyList<DiscoveredPrinter> printers)
+    {
+        var apiKey = _configuration.ApiKey;
+
+        var request = new DiscoveredPrintersRequest
+        {
+            Printers = printers.Select(p => new DiscoveredPrinterDto
+            {
+                PrinterId = p.IPAddress,
+                Name = p.IPAddress,
+                Address = p.IPAddress,
+                Model = p.ModelName,
+                IsMain = false
+            }).ToList()
+        };
+
+        using var requestMessage = new HttpRequestMessage(HttpMethod.Post, "https://api.dev.gastrojames.ch/api/printerServer/discovered-printers");
+        requestMessage.Headers.Add("X-Printer-Server-Key", apiKey);
+        requestMessage.Content = JsonContent.Create(request);
+
+        var response = await _httpClient.SendAsync(requestMessage);
+        response.EnsureSuccessStatusCode();
+    }
+
+    private class DiscoveredPrintersRequest
+    {
+        public List<DiscoveredPrinterDto> Printers { get; set; } = new();
+    }
+
+    private class DiscoveredPrinterDto
+    {
+        public string PrinterId { get; set; } = "";
+        public string Name { get; set; } = "";
+        public string Address { get; set; } = "";
+        public string Model { get; set; } = "";
+        public bool IsMain { get; set; }
+    }
+}