Initial commit

Initial commit til Git.
V2 er deployed

PointOfSale/Pos.EpsonPrinter/EpsonNetworkReceiptPrinter.cs

@@ -0,0 +1,42 @@
+using System.Net.Sockets;
+
+namespace EpsonReceiptPrinter;
+
+public sealed class EpsonNetworkReceiptPrinter : IReceiptPrinter
+{
+    private readonly string _host;
+    private readonly int _port;
+    private readonly PrinterCodePage _codePage;
+
+    public EpsonNetworkReceiptPrinter(string host, int port = 9100, PrinterCodePage codePage = PrinterCodePage.PC865_Nordic)
+    {
+        if (string.IsNullOrWhiteSpace(host))
+        {
+            throw new ArgumentException("Host must be provided.", nameof(host));
+        }
+
+        _host = host;
+        _port = port;
+        _codePage = codePage;
+    }
+
+    public async Task PrintAsync(Receipt receipt, CancellationToken cancellationToken = default)
+    {
+        ArgumentNullException.ThrowIfNull(receipt);
+
+        var data = ReceiptFormatter.Format(receipt, _codePage);
+        await PrintRawAsync(data, cancellationToken);
+    }
+
+    public async Task PrintRawAsync(byte[] data, CancellationToken cancellationToken = default)
+    {
+        ArgumentNullException.ThrowIfNull(data);
+
+        using var client = new TcpClient();
+        await client.ConnectAsync(_host, _port, cancellationToken);
+
+        await using var stream = client.GetStream();
+        await stream.WriteAsync(data, cancellationToken);
+        await stream.FlushAsync(cancellationToken);
+    }
+}