add: wiederholungen

templates/calendar_section.html

@@ -61,6 +61,15 @@
               <input type="time" class="form-control" id="calendarTime">
             </div>
           </div>
+          {% if admin_enabled %}
+          <div class="row g-3 mt-1" id="calendarRecurrenceRow">
+            <div class="col-md-6">
+              <label for="calendarRepeatCount" class="form-label">Wöchentliche Wiederholung</label>
+              <input type="number" class="form-control" id="calendarRepeatCount" min="1" max="52" step="1" value="1">
+              <div class="form-text">Legt einzelne wöchentliche Termine an (für Nachbearbeitung).</div>
+            </div>
+          </div>
+          {% endif %}
           <div class="mt-3">
             <label for="calendarTitle" class="form-label">Titel</label>
             <input type="text" class="form-control" id="calendarTitle" required>
@@ -435,6 +444,22 @@
     return response.json();
   }
 
+  async function createRecurringEntries(entry, repeatCount) {
+    const count = Math.max(1, Math.min(52, repeatCount || 1));
+    const baseDate = entry.date;
+    if (!baseDate) return [];
+    const base = new Date(baseDate);
+    const savedEntries = [];
+    for (let i = 0; i < count; i++) {
+      const next = new Date(base);
+      next.setDate(base.getDate() + i * 7);
+      const entryForWeek = { ...entry, date: toLocalISO(next) };
+      const saved = await saveCalendarEntry(entryForWeek);
+      savedEntries.push(saved);
+    }
+    return savedEntries;
+  }
+
   async function deleteCalendarEntry(id) {
     const response = await fetch(`/api/calendar/${id}`, { method: 'DELETE' });
     if (!response.ok) {
@@ -490,12 +515,22 @@
     const form = document.getElementById('calendarForm');
     const daysContainer = document.getElementById('calendar-days');
     const locationFilter = document.getElementById('calendar-location-filter');
+    const repeatCountInput = document.getElementById('calendarRepeatCount');
+    const recurrenceRow = document.getElementById('calendarRecurrenceRow');
     const calendarModal = modalEl && window.bootstrap ? new bootstrap.Modal(modalEl) : null;
     if (calendarModal) {
       window.calendarModal = calendarModal;
     }
     let calendarHasLoaded = false;
 
+    const setRecurrenceMode = (isEditing) => {
+      if (!recurrenceRow) return;
+      recurrenceRow.style.display = isEditing ? 'none' : '';
+      if (!isEditing && repeatCountInput) {
+        repeatCountInput.value = '1';
+      }
+    };
+
     if (addBtn && calendarModal) {
       addBtn.addEventListener('click', () => {
         if (form) form.reset();
@@ -507,6 +542,7 @@
         const idInput = document.getElementById('calendarEntryId');
         if (idInput) idInput.value = '';
 
+        setRecurrenceMode(false);
         calendarModal.show();
       });
     }
@@ -523,14 +559,24 @@
           location: document.getElementById('calendarLocation')?.value,
           details: document.getElementById('calendarDetails')?.value
         };
+        const isEditing = Boolean(entry.id);
+        const repeatCount = (!isEditing && window._calendarIsAdmin && repeatCountInput)
+          ? Math.max(1, Math.min(52, parseInt(repeatCountInput.value, 10) || 1))
+          : 1;
 
         try {
-          if (entry.id) {
+          if (isEditing) {
             removeCalendarEntryFromUI(entry.id);
+            const saved = await saveCalendarEntry(entry);
+            addLocationOption(saved.location);
+            addCalendarEntry(saved);
+          } else {
+            const savedEntries = await createRecurringEntries(entry, repeatCount);
+            savedEntries.forEach(saved => {
+              addLocationOption(saved.location);
+              addCalendarEntry(saved);
+            });
           }
-          const saved = await saveCalendarEntry(entry);
-          addLocationOption(saved.location);
-          addCalendarEntry(saved);
           calendarModal.hide();
         } catch (err) {
           console.error(err);
@@ -603,6 +649,7 @@
           document.getElementById('calendarTitle').value = entry.title || '';
           document.getElementById('calendarLocation').value = entry.location || '';
           document.getElementById('calendarDetails').value = entry.details || '';
+          setRecurrenceMode(true);
           if (calendarModal) calendarModal.show();
           return;
         }