From 4f5a6b53d9c1594d066f82315df2659434b1044d Mon Sep 17 00:00:00 2001
From: Thomas Dannenberg <kontakt@bratonien.de>
Date: Wed, 5 Nov 2025 21:43:15 +0000
Subject: [PATCH] =?UTF-8?q?adventskalender/2025/js/background.js=20hinzuge?=
 =?UTF-8?q?f=C3=BCgt?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 adventskalender/2025/js/background.js | 43 +++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 adventskalender/2025/js/background.js

diff --git a/adventskalender/2025/js/background.js b/adventskalender/2025/js/background.js
new file mode 100644
index 0000000..6d6a08a
--- /dev/null
+++ b/adventskalender/2025/js/background.js
@@ -0,0 +1,43 @@
+// ============================================================
+// Adventskalender 2025 – Hintergrundwechsel nach Tag
+// ============================================================
+
+(function() {
+  const pathYear = window.location.pathname.match(/(\d{4})/);
+  const YEAR = pathYear ? parseInt(pathYear[1], 10) : new Date().getFullYear();
+  const DEV_MODE = window.location.search.includes("dev");
+  const STORAGE_BASE = `bratonien_${YEAR}_lock`;
+
+  // === Hilfsfunktion: simulierten Tag aus lock.js übernehmen ===
+  function getSimulatedDay() {
+    if (!DEV_MODE) return null;
+    const val = localStorage.getItem(`${STORAGE_BASE}_simday`);
+    return val ? parseInt(val, 10) : null;
+  }
+
+  // === Aktuellen oder simulierten Tag bestimmen ===
+  const now = new Date();
+  let dayToShow = now.getMonth() === 11 ? now.getDate() : 0; // Dezember = 11
+
+  // DEV-Override
+  const sim = getSimulatedDay();
+  if (DEV_MODE && sim) {
+    dayToShow = sim;
+  }
+
+  // === Bildpfad bestimmen ===
+  let imgPath = "assets/picture/Basisbild.png";
+  if (dayToShow >= 1 && dayToShow <= 24) {
+    const padded = String(dayToShow).padStart(2, "0");
+    imgPath = `assets/picture/${padded}.png`;
+  }
+
+  // === Anwendung auf das Kalenderbild ===
+  window.addEventListener("DOMContentLoaded", () => {
+    const kalenderBild = document.querySelector(".kalenderbild img");
+    if (!kalenderBild) return;
+
+    kalenderBild.src = imgPath;
+    console.log(`[Bratonien] Hintergrund gesetzt: ${imgPath}`);
+  });
+})();
\ No newline at end of file