From 2ea76f9d9ad4bc277c17a58eab02036012e5159b Mon Sep 17 00:00:00 2001
From: Dave <david.els1@outlook.com>
Date: Thu, 3 Sep 2026 17:52:39 +0200
Subject: [PATCH] feat(pos): add printer settings persistence for network
 printing

---
 public/pos/epos-print.js | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 public/pos/epos-print.js

diff --git a/public/pos/epos-print.js b/public/pos/epos-print.js
new file mode 100644
index 0000000..ce78a98
--- /dev/null
+++ b/public/pos/epos-print.js
@@ -0,0 +1,28 @@
+// Network (ePOS-Print) thermal printing for Epson TM-series Ethernet
+// printers. Runs alongside the existing Web Bluetooth path in
+// receipt.html — the till picks a transport in Printer settings.
+//
+// The printer's ePOS-Print endpoint is served over HTTPS with a
+// self-signed cert and open CORS (`Access-Control-Allow-Origin: *`),
+// confirmed by direct testing against the shop's TM-T20II. Each till
+// device must visit `https://<printer-ip>` once in its browser and
+// accept the certificate warning before fetch() calls here succeed.
+window.EposPrint = (function () {
+  'use strict';
+
+  const SETTINGS_KEY = 'pos.printerSettings';
+
+  function getSettings() {
+    try {
+      return JSON.parse(localStorage.getItem(SETTINGS_KEY)) || { type: 'bluetooth', ip: '' };
+    } catch (e) {
+      return { type: 'bluetooth', ip: '' };
+    }
+  }
+
+  function setSettings(settings) {
+    localStorage.setItem(SETTINGS_KEY, JSON.stringify(settings));
+  }
+
+  return { getSettings, setSettings };
+})();