From bfae0c5c79035eaf1321165758bafe2af84ee79c Mon Sep 17 00:00:00 2001
From: simonpipe <simonpipe@noreply.codeberg.org>
Date: Thu, 18 Dec 2025 22:18:22 +0100
Subject: [PATCH] Update preset-manager.js

---
 preset-manager.js | 61 +++++++++++++++++++++++++++++++----------------
 1 file changed, 41 insertions(+), 20 deletions(-)

diff --git a/preset-manager.js b/preset-manager.js
index 847a3f5..12cf775 100644
--- a/preset-manager.js
+++ b/preset-manager.js
@@ -2,19 +2,32 @@
 window.PresetManager = {
     presets: [],
 
-    // Lädt Presets aus LocalStorage oder der JSON-Datei
+    // Lädt Presets: URL-Hash hat Vorrang vor LocalStorage
     async load(callback) {
-        this.presets = JSON.parse(localStorage.getItem('presets')) || [];
-        if (this.presets.length === 0) {
-            try {
-                const response = await fetch('webradio_presets.json');
-                if (!response.ok) throw new Error('Datei konnte nicht geladen werden');
-                this.presets = await response.json();
-                this.save();
-            } catch (error) {
-                if (window.UI) window.UI.showAlert("Fehler", 'Fehler beim Laden der Presets: ' + error.message);
+        // 1. Check: Ist ein Hash in der URL vorhanden?
+        const hash = window.location.hash.substring(1);
+        if (hash && hash.length > 30) {
+            const success = await this.importFromString(hash, false); // false = kein Reload
+            if (success) {
+                if (callback) callback(this.presets);
+                return;
             }
         }
+
+        // 2. Check: LocalStorage laden
+        const stored = localStorage.getItem('presets');
+        if (stored) {
+            try {
+                this.presets = JSON.parse(stored);
+            } catch (e) {
+                console.error("Fehler beim Parsen von LocalStorage", e);
+                this.presets = [];
+            }
+        } else {
+            // 3. Fallback: Leere Liste, wenn gar nichts gefunden wurde
+            this.presets = [];
+        }
+        
         if (callback) callback(this.presets);
     },
 
@@ -22,10 +35,10 @@ window.PresetManager = {
         localStorage.setItem('presets', JSON.stringify(this.presets));
     },
 
-    // --- EXPORT/IMPORT (Gzip/Base64) ---
-    async generateExportCode() {
+    // Generiert den Code und gibt ihn zurück
+    async generateExportCode(updateField = true) {
         try {
-            if (!this.presets || this.presets.length === 0) return;
+            if (!this.presets || this.presets.length === 0) return "";
             const compactData = this.presets.map(p => [p.name, p.url]);
             const jsonString = JSON.stringify(compactData);
 
@@ -35,14 +48,19 @@ window.PresetManager = {
             const buffer = await response.arrayBuffer();
             const base64String = btoa(String.fromCharCode(...new Uint8Array(buffer)));
 
-            const exportField = document.getElementById('export-string-field');
-            if (exportField) exportField.value = base64String;
+            if (updateField) {
+                const exportField = document.getElementById('export-string-field');
+                if (exportField) exportField.value = base64String;
+            }
+            return base64String;
         } catch (e) {
             console.error("Export-Fehler:", e);
+            return "";
         }
     },
 
-    async importFromString(code) {
+    // Importiert von einem String
+    async importFromString(code, shouldReload = true) {
         try {
             const binary = atob(code);
             const bytes = Uint8Array.from(binary, c => c.charCodeAt(0));
@@ -54,10 +72,15 @@ window.PresetManager = {
             const importedArray = JSON.parse(resultText);
             this.presets = importedArray.map(item => ({ name: item[0], url: item[1] }));
             this.save();
-            location.reload();
+            
+            if (shouldReload) {
+                // Seite ohne den langen Hash neu laden für eine saubere URL
+                location.href = window.location.origin + window.location.pathname;
+            }
+            return true;
         } catch (e) {
             console.error("Import-Fehler:", e);
-            if (window.UI) window.UI.showAlert("Fehler", "Code ungültig oder beschädigt!");
+            return false;
         }
     },
 
@@ -68,9 +91,7 @@ window.PresetManager = {
         const a = document.createElement('a');
         a.href = url;
         a.download = 'radio_presets.json';
-        document.body.appendChild(a);
         a.click();
-        document.body.removeChild(a);
         URL.revokeObjectURL(url);
     }
 };
\ No newline at end of file