backend/caldav_client.py

@@ -4,7 +4,7 @@ from datetime import date, datetime, timedelta, timezone
 from typing import Dict, List, Optional
 
 import caldav
-from icalendar import Calendar, Event, vRecur
+from icalendar import Calendar, Event, vDatetime, vRecur
 
 logger = logging.getLogger(__name__)
 
@@ -213,9 +213,14 @@ def create_event(
 
 
 def update_event(
-    url: str, username: str, password: str, event_url: str, data: Dict
+    url: str, username: str, password: str, event_url: str, data: Dict,
+    calendar_url: str = None,
 ):
     client = _client(url, username, password)
+    if calendar_url:
+        cal_obj = client.calendar(url=calendar_url)
+        resource = caldav.Event(client=client, url=event_url, parent=cal_obj)
+    else:
         resource = caldav.Event(client=client, url=event_url)
     resource.load()
     raw = resource.data
@@ -258,14 +263,30 @@ def update_event(
             elif "RRULE" in component:
                 del component["RRULE"]
 
+        if "exdate" in data and data["exdate"]:
+            # Parse YYYYMMDD string into a proper EXDATE
+            exdate_str = data["exdate"]
+            # Determine if event uses dates or datetimes
+            dtstart_prop = component.get("DTSTART")
+            if dtstart_prop and isinstance(dtstart_prop.dt, date) and not isinstance(dtstart_prop.dt, datetime):
+                exdate_val = date(int(exdate_str[:4]), int(exdate_str[4:6]), int(exdate_str[6:8]))
+            else:
+                exdate_val = datetime(int(exdate_str[:4]), int(exdate_str[4:6]), int(exdate_str[6:8]), tzinfo=timezone.utc)
+            component.add("exdate", [exdate_val])
+
         new_cal.add_component(component)
 
     resource.data = new_cal.to_ical().decode("utf-8")
     resource.save()
 
 
-def delete_event(url: str, username: str, password: str, event_url: str):
+def delete_event(url: str, username: str, password: str, event_url: str,
+                  calendar_url: str = None):
     client = _client(url, username, password)
+    if calendar_url:
+        cal_obj = client.calendar(url=calendar_url)
+        resource = caldav.Event(client=client, url=event_url, parent=cal_obj)
+    else:
         resource = caldav.Event(client=client, url=event_url)
     resource.delete()
 

backend/main.py

@@ -90,6 +90,13 @@ def _migrate():
         except Exception:
             pass
 
+        try:
+            conn.execute(text("ALTER TABLE local_events ADD COLUMN exdate TEXT"))
+            conn.commit()
+            logging.info("Migration: added exdate to local_events")
+        except Exception:
+            pass
+
 _migrate()
 
 app = FastAPI(title="Calendarr", docs_url=None, redoc_url=None)

backend/models.py

@@ -113,6 +113,7 @@ class LocalEvent(Base):
     description = Column(Text, nullable=True)
     color = Column(String(7), nullable=True)
     rrule = Column(Text, nullable=True)
+    exdate = Column(Text, nullable=True)  # Comma-separated YYYYMMDD dates to exclude
 
     calendar = relationship("LocalCalendar", back_populates="events")
 

backend/routers/caldav_router.py

@@ -57,6 +57,7 @@ class EventUpdate(BaseModel):
     description: Optional[str] = None
     color: Optional[str] = None
     rrule: Optional[str] = None
+    exdate: Optional[str] = None
 
 
 def _account_dict(a: models.CalDAVAccount) -> dict:
@@ -84,6 +85,13 @@ def _account_dict(a: models.CalDAVAccount) -> dict:
 def _expand_recurring_local(ev, local_cal, range_start, range_end):
     """Expand a recurring LocalEvent into individual occurrences within the date range."""
     results = []
+    # Parse excluded dates
+    excluded = set()
+    if ev.exdate:
+        for d in ev.exdate.split(","):
+            d = d.strip()
+            if d:
+                excluded.add(d)
     try:
         ev_start_str = ev.start.replace("Z", "+00:00")
         ev_end_str = ev.end.replace("Z", "+00:00")
@@ -98,6 +106,9 @@ def _expand_recurring_local(ev, local_cal, range_start, range_end):
             occurrences = rule.between(r_start - timedelta(days=1), r_end + timedelta(days=1), inc=True)
             for occ in occurrences:
                 occ_start = occ.date()
+                occ_key = occ_start.strftime("%Y%m%d")
+                if occ_key in excluded:
+                    continue
                 occ_end = occ_start + duration
                 results.append({
                     "id": ev.uid,
@@ -132,6 +143,9 @@ def _expand_recurring_local(ev, local_cal, range_start, range_end):
                 r_end = r_end.replace(tzinfo=dt_timezone.utc)
             occurrences = rule.between(r_start - timedelta(days=1), r_end + timedelta(days=1), inc=True)
             for occ in occurrences:
+                occ_key = occ.strftime("%Y%m%d")
+                if occ_key in excluded:
+                    continue
                 occ_end = occ + duration
                 results.append({
                     "id": ev.uid,
@@ -548,6 +562,7 @@ def update_event(
         .all()
     )
     account = None
+    cal_url = None
     if calendar_id is not None:
         cal = (
             db.query(models.Calendar)
@@ -557,8 +572,15 @@ def update_event(
         )
         if cal:
             account = next((a for a in accounts if a.id == cal.account_id), None)
+            cal_url = cal.cal_id
     if not account:
         account = _find_account_for_event_url(event_url, accounts)
+        # Try to find the calendar URL for the account
+        if account and not cal_url:
+            for c in account.calendars:
+                if event_url.startswith(c.cal_id) or event_url.startswith(_normalize_url(c.cal_id)):
+                    cal_url = c.cal_id
+                    break
     if not account:
         raise HTTPException(404, "Event not found or not authorized")
     try:
@@ -568,6 +590,7 @@ def update_event(
             account.password,
             event_url,
             data.model_dump(exclude_none=True) if data else {},
+            calendar_url=cal_url,
         )
         return {"ok": True}
     except Exception as exc:
@@ -588,6 +611,7 @@ def delete_event(
         .all()
     )
     account = None
+    cal_url = None
     if calendar_id is not None:
         cal = (
             db.query(models.Calendar)
@@ -597,13 +621,20 @@ def delete_event(
         )
         if cal:
             account = next((a for a in accounts if a.id == cal.account_id), None)
+            cal_url = cal.cal_id
     if not account:
         account = _find_account_for_event_url(event_url, accounts)
+        if account and not cal_url:
+            for c in account.calendars:
+                if event_url.startswith(c.cal_id) or event_url.startswith(_normalize_url(c.cal_id)):
+                    cal_url = c.cal_id
+                    break
     if not account:
         raise HTTPException(404, "Event not found or not authorized")
     try:
         caldav_client.delete_event(
-            account.url, account.username, account.password, event_url
+            account.url, account.username, account.password, event_url,
+            calendar_url=cal_url,
         )
         return {"ok": True}
     except Exception as exc:

backend/routers/local_router.py

@@ -44,6 +44,7 @@ class EventUpdate(BaseModel):
     description: Optional[str] = None
     color: Optional[str] = None
     rrule: Optional[str] = None
+    exdate: Optional[str] = None
 
 
 def _cal_dict(cal: models.LocalCalendar) -> dict:
@@ -67,6 +68,7 @@ def _event_dict(ev: models.LocalEvent, cal: models.LocalCalendar) -> dict:
         "description": ev.description or "",
         "color": ev.color,
         "rrule": ev.rrule,
+        "exdate": ev.exdate,
         "calendar_id": f"local-{cal.id}",
         "calendar_name": cal.name,
         "calendarColor": cal.color,
@@ -225,6 +227,12 @@ def update_event(
         ev.color = data.color
     if data.rrule is not None:
         ev.rrule = data.rrule if data.rrule else None
+    if data.exdate is not None:
+        existing = ev.exdate or ""
+        dates = [d for d in existing.split(",") if d]
+        if data.exdate not in dates:
+            dates.append(data.exdate)
+        ev.exdate = ",".join(dates)
     db.commit()
     return {"ok": True}
 

frontend/css/app.css

@@ -487,7 +487,7 @@ a { color: var(--primary); text-decoration: none; }
 .month-col:hover { background: var(--bg-hover); }
 .month-col.today { background: rgba(66,133,244,.08); }
 .month-col.month-selected { background: var(--primary-dim); }
-.month-col.month-selected .cell-day { color: var(--primary); font-weight: 600; }
+.month-col.month-selected .cell-day { background: var(--primary); color: #fff; font-weight: 700; }
 .month-col.other-month .cell-day { color: var(--text-3); }
 .cell-day {
   font-size: 12px; font-weight: 500; color: var(--text-2);
@@ -802,8 +802,8 @@ a { color: var(--primary); text-decoration: none; }
 /* ── Day Context Menu ──────────────────────────────────── */
 .cal-context-menu {
   position: fixed; z-index: 1000;
-  background: var(--bg-card); border: 1px solid var(--border);
+  background: var(--bg-surface); border: 1px solid var(--border);
-  border-radius: var(--radius-sm); box-shadow: 0 4px 16px rgba(0,0,0,.3);
+  border-radius: var(--radius-sm); box-shadow: 0 4px 16px rgba(0,0,0,.5);
   min-width: 180px; padding: 4px 0;
 }
 .ctx-item {

frontend/index.html

@@ -317,6 +317,32 @@
   </div>
 </div>
 
+<!-- Delete Confirm Modal -->
+<div id="modal-delete-confirm" class="modal-overlay hidden">
+  <div class="modal-card" style="max-width:400px">
+    <div class="modal-header">
+      <h3 id="delete-confirm-title">Termin löschen</h3>
+      <button class="icon-btn modal-close" data-modal="modal-delete-confirm">&times;</button>
+    </div>
+    <div class="modal-body">
+      <p id="delete-confirm-text"></p>
+      <div id="delete-series-options" class="hidden" style="margin-top:12px">
+        <label class="toggle-label" style="display:block;margin-bottom:8px">
+          <input type="radio" name="delete-scope" value="single" checked /> Nur diesen Termin
+        </label>
+        <label class="toggle-label" style="display:block">
+          <input type="radio" name="delete-scope" value="all" /> Alle Serienelemente
+        </label>
+      </div>
+    </div>
+    <div class="modal-footer">
+      <div style="flex:1"></div>
+      <button class="btn btn-ghost" data-modal="modal-delete-confirm">Abbrechen</button>
+      <button class="btn btn-danger" id="delete-confirm-ok">Löschen</button>
+    </div>
+  </div>
+</div>
+
 <!-- Event Detail Popup -->
 <div id="popup-event" class="event-popup hidden">
   <div class="popup-header">

frontend/js/calendar.js

@@ -26,6 +26,7 @@ let weekStartDay = 'monday';
 
 let state = {
   currentDate: new Date(),
+  selectedDate: null,      // separate from currentDate; used for month-view selection
   currentView: 'month',
   events: [],
   accounts: [],
@@ -253,22 +254,23 @@ function renderView() {
       (date, action, mouseEvent) => {
         if (action === 'navigate') {
           state.currentDate = date;
+          state.selectedDate = date;
           state.currentView = 'day';
           updateViewButtons();
           fetchAndRender();
         } else if (action === 'context') {
-          state.currentDate = date;
+          state.selectedDate = date;
           showDayContextMenu(date, mouseEvent);
-        } else {
-          // 'select' — highlight day without navigating
-          state.currentDate = date;
-          renderMiniCal();
           renderView();
-          updateTitle();
+        } else {
+          // 'select' — only update selectedDate, don't shift the view
+          state.selectedDate = date;
+          renderView();
         }
       },
       showEventPopup,
-      weekStartDay
+      weekStartDay,
+      state.selectedDate
     );
   } else if (state.currentView === 'week') {
     renderWeek(container, state.currentDate, evs,
@@ -780,7 +782,7 @@ function bindTopbar() {
   });
 
   document.getElementById('btn-settings').onclick = openSettingsModal;
-  document.getElementById('btn-create-event').onclick = () => openNewEventModal(state.currentDate);
+  document.getElementById('btn-create-event').onclick = () => openNewEventModal(state.selectedDate || state.currentDate);
 
   // Mouse wheel / trackpad scroll navigation – only for month & quarter
   let _wheelLast = 0;
@@ -854,6 +856,82 @@ function bindSidebar() {
 }
 
 // ── Day Context Menu (month view) ────────────────────────
+// ── Delete logic ──────────────────────────────────────────
+async function deleteEventByScope(ev, scope) {
+  if (scope === 'all' || !ev.rrule) {
+    // Delete the entire event (or non-recurring)
+    if (ev.source === 'google') {
+      const accId = ev.calendar_id.replace('google-', '');
+      await api.delete(`/google/events/${accId}/${encodeURIComponent(ev.id)}`);
+    } else if (ev.source === 'local') {
+      await api.delete(`/local/events/${encodeURIComponent(ev.id)}`);
+    } else if (ev.source === 'ical') {
+      const subId = ev.calendar_id.replace('ical-', '');
+      await api.delete(`/ical/events/${subId}/${encodeURIComponent(ev.id)}`);
+    } else {
+      await api.delete(`/caldav/events/${encodeURIComponent(ev.id)}?event_url=${encodeURIComponent(ev.url)}&calendar_id=${ev.calendar_id}`);
+    }
+  } else {
+    // Delete single occurrence: add EXDATE to exclude this date
+    const exdate = ev.start.slice(0, 10).replace(/-/g, '');
+    if (ev.source === 'local') {
+      // For local events: update rrule with EXDATE via a special field
+      const currentRrule = ev.rrule || '';
+      await api.put(`/local/events/${encodeURIComponent(ev.id)}`, {
+        exdate: exdate,
+      });
+    } else {
+      // For CalDAV: pass exdate to update
+      await api.put(
+        `/caldav/events/${encodeURIComponent(ev.id)}?event_url=${encodeURIComponent(ev.url)}&calendar_id=${ev.calendar_id}`,
+        { exdate: exdate }
+      );
+    }
+  }
+}
+
+// ── Delete Confirm Dialog ─────────────────────────────────
+function showDeleteConfirm(ev) {
+  return new Promise(resolve => {
+    const modal = document.getElementById('modal-delete-confirm');
+    const isRecurring = !!(ev.rrule);
+
+    document.getElementById('delete-confirm-title').textContent = t('confirm_delete_title');
+    document.getElementById('delete-confirm-text').textContent = t('confirm_delete_event', { title: ev.title });
+    document.getElementById('delete-series-options').classList.toggle('hidden', !isRecurring);
+
+    // Reset radio
+    const radios = modal.querySelectorAll('input[name="delete-scope"]');
+    radios[0].checked = true;
+
+    // Labels
+    const labels = modal.querySelectorAll('#delete-series-options label');
+    if (labels[0]) labels[0].lastChild.textContent = ' ' + t('delete_single');
+    if (labels[1]) labels[1].lastChild.textContent = ' ' + t('delete_all_series');
+
+    openModal('modal-delete-confirm');
+
+    const okBtn = document.getElementById('delete-confirm-ok');
+    const cleanup = () => {
+      okBtn.onclick = null;
+      modal.querySelectorAll('[data-modal="modal-delete-confirm"]').forEach(b => b.onclick = null);
+    };
+
+    okBtn.onclick = () => {
+      const scope = isRecurring
+        ? modal.querySelector('input[name="delete-scope"]:checked')?.value || 'single'
+        : 'single';
+      cleanup();
+      closeModal('modal-delete-confirm');
+      resolve(scope);
+    };
+
+    modal.querySelectorAll('[data-modal="modal-delete-confirm"]').forEach(b => {
+      b.onclick = () => { cleanup(); closeModal('modal-delete-confirm'); resolve(null); };
+    });
+  });
+}
+
 function showDayContextMenu(date, mouseEvent) {
   document.querySelectorAll('.cal-context-menu').forEach(m => m.remove());
 
@@ -953,20 +1031,11 @@ function showEventPopup(ev, anchor) {
   };
 
   document.getElementById('popup-delete').onclick = async () => {
-    if (!confirm(t("confirm_delete_event", {title: ev.title}))) return;
+    const scope = await showDeleteConfirm(ev);
+    if (!scope) return;
     popup.classList.add('hidden');
     try {
-      if (ev.source === 'google') {
+      await deleteEventByScope(ev, scope);
-        const accId = ev.calendar_id.replace('google-', '');
-        await api.delete(`/google/events/${accId}/${encodeURIComponent(ev.id)}`);
-      } else if (ev.source === 'local') {
-        await api.delete(`/local/events/${encodeURIComponent(ev.id)}`);
-      } else if (ev.source === 'ical') {
-        const subId = ev.calendar_id.replace('ical-', '');
-        await api.delete(`/ical/events/${subId}/${encodeURIComponent(ev.id)}`);
-      } else {
-        await api.delete(`/caldav/events/${encodeURIComponent(ev.id)}?event_url=${encodeURIComponent(ev.url)}&calendar_id=${ev.calendar_id}`);
-      }
       showToast(t('event_deleted'));
       fetchAndRender(true);
     } catch (e) { showToast(e.message, true); }
@@ -1015,6 +1084,16 @@ function populateCalendarSelect(selectedId) {
       sel.appendChild(opt);
     });
   });
+  // Home Assistant calendars
+  state.haAccounts.forEach(acc => {
+    acc.calendars.filter(c => c.enabled).forEach(cal => {
+      const opt = document.createElement('option');
+      opt.value = `homeassistant-${cal.id}`;
+      opt.textContent = `${acc.name} / ${cal.name}`;
+      if (`homeassistant-${cal.id}` === selectedId) opt.selected = true;
+      sel.appendChild(opt);
+    });
+  });
 }
 
 // ── Date field helpers ────────────────────────────────────
@@ -1315,6 +1394,7 @@ function bindEventModal() {
     const calVal  = document.getElementById('ev-calendar').value;
     const isLocal = calVal.startsWith('local-');
     const isGoogle = calVal.startsWith('google-');
+    const isHA = calVal.startsWith('homeassistant-');
     const loc     = document.getElementById('ev-location').value.trim();
     const desc    = document.getElementById('ev-description').value.trim();
     const color   = state.selectedEventColor;
@@ -1373,6 +1453,9 @@ function bindEventModal() {
           rrule: rrule || null,
         });
         showToast(t('event_created'));
+      } else if (isHA) {
+        showToast(t('ha_create_not_supported'), true);
+        return;
       } else {
         const calId = parseInt(calVal);
         await api.post('/caldav/events', {
@@ -1392,19 +1475,10 @@ function bindEventModal() {
   document.getElementById('ev-delete').onclick = async () => {
     const ev = state.editingEvent;
     if (!ev) return;
-    if (!confirm(t("confirm_delete_event", {title: ev.title}))) return;
+    const scope = await showDeleteConfirm(ev);
+    if (!scope) return;
     try {
-      if (ev.source === 'google') {
+      await deleteEventByScope(ev, scope);
-        const accId = ev.calendar_id.replace('google-', '');
-        await api.delete(`/google/events/${accId}/${encodeURIComponent(ev.id)}`);
-      } else if (ev.source === 'local') {
-        await api.delete(`/local/events/${encodeURIComponent(ev.id)}`);
-      } else if (ev.source === 'ical') {
-        const subId = ev.calendar_id.replace('ical-', '');
-        await api.delete(`/ical/events/${subId}/${encodeURIComponent(ev.id)}`);
-      } else {
-        await api.delete(`/caldav/events/${encodeURIComponent(ev.id)}?event_url=${encodeURIComponent(ev.url)}&calendar_id=${ev.calendar_id}`);
-      }
       showToast(t('event_deleted'));
       closeModal('modal-event');
       fetchAndRender(true);

frontend/js/i18n.js

@@ -145,6 +145,7 @@ const translations = {
     error_end_before_start: 'Ende kann nicht vor dem Start liegen',
     ctx_create_event: 'Neuen Termin erstellen',
     event_readonly: 'Abonnierte Termine können nicht bearbeitet werden',
+    ha_create_not_supported: 'Termine können in Home Assistant Kalendern nicht direkt erstellt werden',
     rec_label: 'Wiederholung',
     rec_none: 'Keine', rec_daily: 'Täglich', rec_weekly: 'Wöchentlich',
     rec_monthly: 'Monatlich', rec_yearly: 'Jährlich', rec_custom: 'Benutzerdefiniert…',
@@ -154,6 +155,9 @@ const translations = {
     copy_to_calendar: 'Kopieren nach…', event_copied: 'Termin kopiert',
     event_updated: 'Termin aktualisiert', event_created: 'Termin erstellt',
     confirm_delete_event: '"{title}" wirklich löschen?',
+    confirm_delete_title: 'Termin löschen',
+    delete_single: 'Nur diesen Termin',
+    delete_all_series: 'Alle Termine der Serie',
     event_deleted: 'Termin gelöscht',
     error_fill_all: 'Bitte alle Felder ausfüllen',
     account_added: 'Konto "{name}" hinzugefügt',
@@ -349,6 +353,7 @@ const translations = {
     error_end_before_start: 'End cannot be before start',
     ctx_create_event: 'Create new event',
     event_readonly: 'Subscribed events cannot be edited',
+    ha_create_not_supported: 'Events cannot be created directly in Home Assistant calendars',
     rec_label: 'Recurrence',
     rec_none: 'None', rec_daily: 'Daily', rec_weekly: 'Weekly',
     rec_monthly: 'Monthly', rec_yearly: 'Yearly', rec_custom: 'Custom…',
@@ -358,6 +363,9 @@ const translations = {
     copy_to_calendar: 'Copy to…', event_copied: 'Event copied',
     event_updated: 'Event updated', event_created: 'Event created',
     confirm_delete_event: 'Really delete "{title}"?',
+    confirm_delete_title: 'Delete event',
+    delete_single: 'Only this occurrence',
+    delete_all_series: 'All events in series',
     event_deleted: 'Event deleted',
     error_fill_all: 'Please fill in all fields',
     account_added: 'Account "{name}" added',

frontend/js/views/month.js

@@ -5,7 +5,7 @@ const LANE_H   = 20; // px per lane (event height 18px + 2px gap)
 const DAY_H    = 30; // day-number row height
 const NUM_ROWS = 5;  // rolling view: always 5 weeks
 
-export function renderMonth(container, currentDate, events, onDayClick, onEventClick, weekStartDay = 'monday') {
+export function renderMonth(container, currentDate, events, onDayClick, onEventClick, weekStartDay = 'monday', selectedDate = null) {
   // Dynamic lane limit: how many events fit in the actual row height
   const containerH = container.clientHeight || 600;
   const headerH    = 34; // month-header DOW row
@@ -126,7 +126,8 @@ export function renderMonth(container, currentDate, events, onDayClick, onEventC
       const isOther  = cell.getMonth() !== primaryMonth;
       const todayCls    = isToday(cell) ? 'today' : '';
       const otherCls    = isOther       ? 'other-month' : '';
-      const selectedCls = isSameDay(cell, currentDate) ? 'month-selected' : '';
+      const selDate     = selectedDate || currentDate;
+      const selectedCls = isSameDay(cell, selDate) ? 'month-selected' : '';
       const numCls      = isToday(cell) ? 'today' : '';
       colsHtml += `<div class="month-col ${todayCls} ${otherCls} ${selectedCls}" data-date="${key}">
         <div class="cell-day ${numCls}">${cell.getDate()}</div>