Lokale Kalender und iCal-URL-Abonnements

Neue Features:
- Lokale Kalender erstellen mit vollem Event-CRUD (in SQLite gespeichert)
- iCal-URLs abonnieren mit Auto-Refresh und lokalem Caching
- iCal-Events sind editierbar/löschbar (Änderungen als lokale Overrides)
- Sidebar zeigt alle 3 Kalendertypen mit Farbe, Umbenennen, Löschen
- Dropdown "Kalender hinzufügen" mit 3 Optionen (Lokal, CalDAV, iCal)
Backend: models.py (4 neue Tabellen), local_router.py, ical_router.py
Frontend: Neue Modals, erweiterte Sidebar, Source-basiertes Event-Routing

backend/main.py

@@ -12,7 +12,7 @@ from sqlalchemy import text
 sys.path.insert(0, str(Path(__file__).parent))
 
 from database import Base, engine
-from routers import auth_router, caldav_router, profile_router, settings_router, users_router
+from routers import auth_router, caldav_router, ical_router, local_router, profile_router, settings_router, users_router
 
 logging.basicConfig(level=logging.INFO)
 
@@ -41,6 +41,8 @@ app.include_router(users_router.router, prefix="/api/users", tags=["users"])
 app.include_router(caldav_router.router, prefix="/api/caldav", tags=["caldav"])
 app.include_router(settings_router.router, prefix="/api/settings", tags=["settings"])
 app.include_router(profile_router.router, prefix="/api/profile", tags=["profile"])
+app.include_router(local_router.router, prefix="/api/local", tags=["local"])
+app.include_router(ical_router.router, prefix="/api/ical", tags=["ical"])
 
 FRONTEND_DIR = Path(__file__).parent.parent / "frontend"
 app.mount("/static", StaticFiles(directory=str(FRONTEND_DIR)), name="static")

backend/models.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, Integer, String, Boolean, ForeignKey
+from sqlalchemy import Column, Integer, String, Boolean, DateTime, ForeignKey, Text
 from sqlalchemy.orm import relationship
 from database import Base
 
@@ -21,6 +21,12 @@ class User(Base):
     settings = relationship(
         "UserSettings", back_populates="user", uselist=False, cascade="all, delete-orphan"
     )
+    local_calendars = relationship(
+        "LocalCalendar", back_populates="user", cascade="all, delete-orphan"
+    )
+    ical_subscriptions = relationship(
+        "ICalSubscription", back_populates="user", cascade="all, delete-orphan"
+    )
 
 
 class CalDAVAccount(Base):
@@ -67,3 +73,68 @@ class UserSettings(Base):
     dim_past_events = Column(Boolean, default=False)
 
     user = relationship("User", back_populates="settings")
+
+
+class LocalCalendar(Base):
+    __tablename__ = "local_calendars"
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+    name = Column(String(100), nullable=False)
+    color = Column(String(7), default="#34a853")
+    enabled = Column(Boolean, default=True)
+
+    user = relationship("User", back_populates="local_calendars")
+    events = relationship("LocalEvent", back_populates="calendar", cascade="all, delete-orphan")
+
+
+class LocalEvent(Base):
+    __tablename__ = "local_events"
+
+    id = Column(Integer, primary_key=True, index=True)
+    calendar_id = Column(Integer, ForeignKey("local_calendars.id"), nullable=False)
+    uid = Column(String(255), nullable=False, unique=True)
+    title = Column(String(255), nullable=False)
+    start = Column(String(50), nullable=False)
+    end = Column(String(50), nullable=False)
+    all_day = Column(Boolean, default=False)
+    location = Column(String(500), nullable=True)
+    description = Column(Text, nullable=True)
+    color = Column(String(7), nullable=True)
+
+    calendar = relationship("LocalCalendar", back_populates="events")
+
+
+class ICalSubscription(Base):
+    __tablename__ = "ical_subscriptions"
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"), nullable=False)
+    name = Column(String(100), nullable=False)
+    url = Column(String(1000), nullable=False)
+    color = Column(String(7), default="#46bdc6")
+    enabled = Column(Boolean, default=True)
+    refresh_minutes = Column(Integer, default=60)
+    last_fetched = Column(DateTime, nullable=True)
+    cached_ics = Column(Text, nullable=True)
+
+    user = relationship("User", back_populates="ical_subscriptions")
+    overrides = relationship("ICalOverride", back_populates="subscription", cascade="all, delete-orphan")
+
+
+class ICalOverride(Base):
+    __tablename__ = "ical_overrides"
+
+    id = Column(Integer, primary_key=True, index=True)
+    subscription_id = Column(Integer, ForeignKey("ical_subscriptions.id"), nullable=False)
+    event_uid = Column(String(500), nullable=False)
+    hidden = Column(Boolean, default=False)
+    title = Column(String(255), nullable=True)
+    start = Column(String(50), nullable=True)
+    end = Column(String(50), nullable=True)
+    all_day = Column(Boolean, nullable=True)
+    location = Column(String(500), nullable=True)
+    description = Column(Text, nullable=True)
+    color = Column(String(7), nullable=True)
+
+    subscription = relationship("ICalSubscription", back_populates="overrides")

backend/routers/caldav_router.py

@@ -9,6 +9,7 @@ import caldav_client
 import models
 from auth import get_current_user
 from database import get_db
+from routers.ical_router import _refresh_if_needed, get_events_for_subscription
 
 logger = logging.getLogger(__name__)
 router = APIRouter()
@@ -283,6 +284,58 @@ def get_events(
                     "Error fetching calendar %s: %s", calendar.id, exc
                 )
 
+    # ── Local calendar events ─────────────────────────────
+    local_calendars = (
+        db.query(models.LocalCalendar)
+        .filter(
+            models.LocalCalendar.user_id == current_user.id,
+            models.LocalCalendar.enabled == True,
+        )
+        .all()
+    )
+    for local_cal in local_calendars:
+        local_events = (
+            db.query(models.LocalEvent)
+            .filter(
+                models.LocalEvent.calendar_id == local_cal.id,
+                models.LocalEvent.start < end,
+                models.LocalEvent.end > start,
+            )
+            .all()
+        )
+        for ev in local_events:
+            all_events.append({
+                "id": ev.uid,
+                "url": f"local://{ev.uid}",
+                "title": ev.title,
+                "start": ev.start,
+                "end": ev.end,
+                "allDay": ev.all_day,
+                "location": ev.location or "",
+                "description": ev.description or "",
+                "color": ev.color,
+                "calendar_id": f"local-{local_cal.id}",
+                "calendar_name": local_cal.name,
+                "calendarColor": local_cal.color,
+                "source": "local",
+            })
+
+    # ── iCal subscription events ──────────────────────────
+    ical_subs = (
+        db.query(models.ICalSubscription)
+        .filter(
+            models.ICalSubscription.user_id == current_user.id,
+            models.ICalSubscription.enabled == True,
+        )
+        .all()
+    )
+    for sub in ical_subs:
+        try:
+            _refresh_if_needed(sub, db)
+            all_events.extend(get_events_for_subscription(sub, start_dt, end_dt, db))
+        except Exception as exc:
+            logger.error("Error fetching iCal subscription %s: %s", sub.id, exc)
+
     return all_events
 
 

backend/routers/ical_router.py

@@ -0,0 +1,359 @@
+import logging
+from datetime import datetime, timezone
+from typing import Optional
+
+import requests as http_requests
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+
+import models
+from auth import get_current_user
+from caldav_client import _parse_ics
+from database import get_db
+
+logger = logging.getLogger(__name__)
+router = APIRouter()
+
+
+class SubscriptionCreate(BaseModel):
+    name: str
+    url: str
+    color: str = "#46bdc6"
+    refresh_minutes: int = 60
+
+
+class SubscriptionUpdate(BaseModel):
+    name: Optional[str] = None
+    url: Optional[str] = None
+    color: Optional[str] = None
+    enabled: Optional[bool] = None
+    refresh_minutes: Optional[int] = None
+
+
+def _sub_dict(sub: models.ICalSubscription) -> dict:
+    return {
+        "id": sub.id,
+        "name": sub.name,
+        "url": sub.url,
+        "color": sub.color,
+        "enabled": sub.enabled,
+        "refresh_minutes": sub.refresh_minutes,
+        "last_fetched": sub.last_fetched.isoformat() if sub.last_fetched else None,
+    }
+
+
+def _fetch_ics(url: str) -> str:
+    """Download .ics content from a URL."""
+    try:
+        resp = http_requests.get(url, timeout=30, allow_redirects=True)
+        resp.raise_for_status()
+        return resp.text
+    except http_requests.RequestException as e:
+        raise ValueError(f"Fehler beim Abrufen der URL: {e}")
+
+
+def _refresh_if_needed(sub: models.ICalSubscription, db: Session, force: bool = False):
+    """Refresh cached ICS data if stale or forced."""
+    now = datetime.now(timezone.utc)
+    if (
+        not force
+        and sub.cached_ics
+        and sub.last_fetched
+        and (now - sub.last_fetched.replace(tzinfo=timezone.utc)).total_seconds()
+        < sub.refresh_minutes * 60
+    ):
+        return  # Cache still fresh
+
+    try:
+        sub.cached_ics = _fetch_ics(sub.url)
+        sub.last_fetched = now
+        db.commit()
+    except ValueError:
+        logger.warning("Could not refresh iCal subscription %s", sub.id)
+        if not sub.cached_ics:
+            raise
+
+
+def get_events_for_subscription(
+    sub: models.ICalSubscription, start_dt: datetime, end_dt: datetime, db: Session = None
+) -> list:
+    """Parse cached ICS and filter events within the date range, applying local overrides."""
+    if not sub.cached_ics:
+        return []
+
+    # Load overrides for this subscription
+    overrides = {}
+    if db:
+        for ov in (
+            db.query(models.ICalOverride)
+            .filter(models.ICalOverride.subscription_id == sub.id)
+            .all()
+        ):
+            overrides[ov.event_uid] = ov
+
+    all_events = _parse_ics(sub.cached_ics, f"ical://{sub.id}")
+    filtered = []
+    for ev in all_events:
+        uid = ev["id"]
+
+        # Skip hidden (deleted) events
+        ov = overrides.get(uid)
+        if ov and ov.hidden:
+            continue
+
+        # Apply overrides
+        if ov:
+            if ov.title is not None:
+                ev["title"] = ov.title
+            if ov.start is not None:
+                ev["start"] = ov.start
+            if ov.end is not None:
+                ev["end"] = ov.end
+            if ov.all_day is not None:
+                ev["allDay"] = ov.all_day
+            if ov.location is not None:
+                ev["location"] = ov.location
+            if ov.description is not None:
+                ev["description"] = ov.description
+            if ov.color is not None:
+                ev["color"] = ov.color
+
+        try:
+            ev_start = ev["start"]
+            ev_end = ev["end"]
+            if ev["allDay"]:
+                if ev_end > start_dt.strftime("%Y-%m-%d") and ev_start < end_dt.strftime("%Y-%m-%d"):
+                    filtered.append(ev)
+            else:
+                ev_s = datetime.fromisoformat(ev_start.replace("Z", "+00:00"))
+                ev_e = datetime.fromisoformat(ev_end.replace("Z", "+00:00"))
+                if ev_s.tzinfo is None:
+                    ev_s = ev_s.replace(tzinfo=timezone.utc)
+                if ev_e.tzinfo is None:
+                    ev_e = ev_e.replace(tzinfo=timezone.utc)
+                if ev_e > start_dt and ev_s < end_dt:
+                    filtered.append(ev)
+        except Exception:
+            filtered.append(ev)
+
+    for ev in filtered:
+        ev["calendar_id"] = f"ical-{sub.id}"
+        ev["calendar_name"] = sub.name
+        ev["calendarColor"] = sub.color
+        ev["source"] = "ical"
+
+    return filtered
+
+
+# ── Subscription CRUD ─────────────────────────────────────
+
+@router.get("/subscriptions")
+def list_subscriptions(
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    subs = (
+        db.query(models.ICalSubscription)
+        .filter(models.ICalSubscription.user_id == current_user.id)
+        .all()
+    )
+    return [_sub_dict(s) for s in subs]
+
+
+@router.post("/subscriptions")
+def create_subscription(
+    data: SubscriptionCreate,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    # Validate URL by fetching it
+    try:
+        ics_content = _fetch_ics(data.url)
+    except ValueError as e:
+        raise HTTPException(400, str(e))
+
+    sub = models.ICalSubscription(
+        user_id=current_user.id,
+        name=data.name,
+        url=data.url,
+        color=data.color,
+        refresh_minutes=data.refresh_minutes,
+        cached_ics=ics_content,
+        last_fetched=datetime.now(timezone.utc),
+    )
+    db.add(sub)
+    db.commit()
+    db.refresh(sub)
+    return _sub_dict(sub)
+
+
+@router.put("/subscriptions/{sub_id}")
+def update_subscription(
+    sub_id: int,
+    data: SubscriptionUpdate,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    sub = (
+        db.query(models.ICalSubscription)
+        .filter(
+            models.ICalSubscription.id == sub_id,
+            models.ICalSubscription.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not sub:
+        raise HTTPException(404, "Subscription not found")
+    if data.name is not None:
+        sub.name = data.name
+    if data.url is not None:
+        sub.url = data.url
+    if data.color is not None:
+        sub.color = data.color
+    if data.enabled is not None:
+        sub.enabled = data.enabled
+    if data.refresh_minutes is not None:
+        sub.refresh_minutes = data.refresh_minutes
+    db.commit()
+    return {"ok": True}
+
+
+@router.delete("/subscriptions/{sub_id}")
+def delete_subscription(
+    sub_id: int,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    sub = (
+        db.query(models.ICalSubscription)
+        .filter(
+            models.ICalSubscription.id == sub_id,
+            models.ICalSubscription.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not sub:
+        raise HTTPException(404, "Subscription not found")
+    db.delete(sub)
+    db.commit()
+    return {"ok": True}
+
+
+@router.post("/subscriptions/{sub_id}/refresh")
+def refresh_subscription(
+    sub_id: int,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    sub = (
+        db.query(models.ICalSubscription)
+        .filter(
+            models.ICalSubscription.id == sub_id,
+            models.ICalSubscription.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not sub:
+        raise HTTPException(404, "Subscription not found")
+    try:
+        _refresh_if_needed(sub, db, force=True)
+    except ValueError as e:
+        raise HTTPException(400, str(e))
+    return _sub_dict(sub)
+
+
+# ── Event overrides (edit/delete iCal events locally) ─────
+
+class ICalEventUpdate(BaseModel):
+    title: Optional[str] = None
+    start: Optional[str] = None
+    end: Optional[str] = None
+    allDay: Optional[bool] = None
+    location: Optional[str] = None
+    description: Optional[str] = None
+    color: Optional[str] = None
+
+
+@router.put("/events/{sub_id}/{event_uid}")
+def update_ical_event(
+    sub_id: int,
+    event_uid: str,
+    data: ICalEventUpdate,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    sub = (
+        db.query(models.ICalSubscription)
+        .filter(
+            models.ICalSubscription.id == sub_id,
+            models.ICalSubscription.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not sub:
+        raise HTTPException(404, "Subscription not found")
+
+    ov = (
+        db.query(models.ICalOverride)
+        .filter(
+            models.ICalOverride.subscription_id == sub_id,
+            models.ICalOverride.event_uid == event_uid,
+        )
+        .first()
+    )
+    if not ov:
+        ov = models.ICalOverride(subscription_id=sub_id, event_uid=event_uid)
+        db.add(ov)
+
+    if data.title is not None:
+        ov.title = data.title
+    if data.start is not None:
+        ov.start = data.start
+    if data.end is not None:
+        ov.end = data.end
+    if data.allDay is not None:
+        ov.all_day = data.allDay
+    if data.location is not None:
+        ov.location = data.location
+    if data.description is not None:
+        ov.description = data.description
+    if data.color is not None:
+        ov.color = data.color
+    db.commit()
+    return {"ok": True}
+
+
+@router.delete("/events/{sub_id}/{event_uid}")
+def delete_ical_event(
+    sub_id: int,
+    event_uid: str,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    sub = (
+        db.query(models.ICalSubscription)
+        .filter(
+            models.ICalSubscription.id == sub_id,
+            models.ICalSubscription.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not sub:
+        raise HTTPException(404, "Subscription not found")
+
+    ov = (
+        db.query(models.ICalOverride)
+        .filter(
+            models.ICalOverride.subscription_id == sub_id,
+            models.ICalOverride.event_uid == event_uid,
+        )
+        .first()
+    )
+    if not ov:
+        ov = models.ICalOverride(subscription_id=sub_id, event_uid=event_uid, hidden=True)
+        db.add(ov)
+    else:
+        ov.hidden = True
+    db.commit()
+    return {"ok": True}

backend/routers/local_router.py

@@ -0,0 +1,245 @@
+import uuid
+from typing import Optional
+
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel
+from sqlalchemy.orm import Session
+
+import models
+from auth import get_current_user
+from database import get_db
+
+router = APIRouter()
+
+
+class CalendarCreate(BaseModel):
+    name: str
+    color: str = "#34a853"
+
+
+class CalendarUpdate(BaseModel):
+    name: Optional[str] = None
+    color: Optional[str] = None
+    enabled: Optional[bool] = None
+
+
+class EventCreate(BaseModel):
+    calendar_id: int
+    title: str
+    start: str
+    end: str
+    allDay: bool = False
+    location: Optional[str] = None
+    description: Optional[str] = None
+    color: Optional[str] = None
+
+
+class EventUpdate(BaseModel):
+    title: Optional[str] = None
+    start: Optional[str] = None
+    end: Optional[str] = None
+    allDay: Optional[bool] = None
+    location: Optional[str] = None
+    description: Optional[str] = None
+    color: Optional[str] = None
+
+
+def _cal_dict(cal: models.LocalCalendar) -> dict:
+    return {
+        "id": cal.id,
+        "name": cal.name,
+        "color": cal.color,
+        "enabled": cal.enabled,
+    }
+
+
+def _event_dict(ev: models.LocalEvent, cal: models.LocalCalendar) -> dict:
+    return {
+        "id": ev.uid,
+        "url": f"local://{ev.uid}",
+        "title": ev.title,
+        "start": ev.start,
+        "end": ev.end,
+        "allDay": ev.all_day,
+        "location": ev.location or "",
+        "description": ev.description or "",
+        "color": ev.color,
+        "calendar_id": f"local-{cal.id}",
+        "calendar_name": cal.name,
+        "calendarColor": cal.color,
+        "source": "local",
+    }
+
+
+# ── Calendar CRUD ─────────────────────────────────────────
+
+@router.get("/calendars")
+def list_calendars(
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    cals = (
+        db.query(models.LocalCalendar)
+        .filter(models.LocalCalendar.user_id == current_user.id)
+        .all()
+    )
+    return [_cal_dict(c) for c in cals]
+
+
+@router.post("/calendars")
+def create_calendar(
+    data: CalendarCreate,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    cal = models.LocalCalendar(
+        user_id=current_user.id,
+        name=data.name,
+        color=data.color,
+    )
+    db.add(cal)
+    db.commit()
+    db.refresh(cal)
+    return _cal_dict(cal)
+
+
+@router.put("/calendars/{calendar_id}")
+def update_calendar(
+    calendar_id: int,
+    data: CalendarUpdate,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    cal = (
+        db.query(models.LocalCalendar)
+        .filter(
+            models.LocalCalendar.id == calendar_id,
+            models.LocalCalendar.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not cal:
+        raise HTTPException(404, "Calendar not found")
+    if data.name is not None:
+        cal.name = data.name
+    if data.color is not None:
+        cal.color = data.color
+    if data.enabled is not None:
+        cal.enabled = data.enabled
+    db.commit()
+    return {"ok": True}
+
+
+@router.delete("/calendars/{calendar_id}")
+def delete_calendar(
+    calendar_id: int,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    cal = (
+        db.query(models.LocalCalendar)
+        .filter(
+            models.LocalCalendar.id == calendar_id,
+            models.LocalCalendar.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not cal:
+        raise HTTPException(404, "Calendar not found")
+    db.delete(cal)
+    db.commit()
+    return {"ok": True}
+
+
+# ── Event CRUD ────────────────────────────────────────────
+
+@router.post("/events")
+def create_event(
+    data: EventCreate,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    cal = (
+        db.query(models.LocalCalendar)
+        .filter(
+            models.LocalCalendar.id == data.calendar_id,
+            models.LocalCalendar.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not cal:
+        raise HTTPException(404, "Calendar not found")
+
+    ev = models.LocalEvent(
+        calendar_id=cal.id,
+        uid=str(uuid.uuid4()),
+        title=data.title,
+        start=data.start,
+        end=data.end,
+        all_day=data.allDay,
+        location=data.location,
+        description=data.description,
+        color=data.color,
+    )
+    db.add(ev)
+    db.commit()
+    db.refresh(ev)
+    return _event_dict(ev, cal)
+
+
+@router.put("/events/{uid}")
+def update_event(
+    uid: str,
+    data: EventUpdate,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    ev = (
+        db.query(models.LocalEvent)
+        .join(models.LocalCalendar)
+        .filter(
+            models.LocalEvent.uid == uid,
+            models.LocalCalendar.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not ev:
+        raise HTTPException(404, "Event not found")
+    if data.title is not None:
+        ev.title = data.title
+    if data.start is not None:
+        ev.start = data.start
+    if data.end is not None:
+        ev.end = data.end
+    if data.allDay is not None:
+        ev.all_day = data.allDay
+    if data.location is not None:
+        ev.location = data.location
+    if data.description is not None:
+        ev.description = data.description
+    if data.color is not None:
+        ev.color = data.color
+    db.commit()
+    return {"ok": True}
+
+
+@router.delete("/events/{uid}")
+def delete_event(
+    uid: str,
+    db: Session = Depends(get_db),
+    current_user: models.User = Depends(get_current_user),
+):
+    ev = (
+        db.query(models.LocalEvent)
+        .join(models.LocalCalendar)
+        .filter(
+            models.LocalEvent.uid == uid,
+            models.LocalCalendar.user_id == current_user.id,
+        )
+        .first()
+    )
+    if not ev:
+        raise HTTPException(404, "Event not found")
+    db.delete(ev)
+    db.commit()
+    return {"ok": True}

frontend/css/app.css

@@ -379,6 +379,19 @@ a { color: var(--primary); text-decoration: none; }
   font-size: 12px; font-weight: 600; text-transform: uppercase;
   letter-spacing: .5px; color: var(--text-2);
 }
+.add-cal-dropdown-wrap { position: relative; }
+.add-cal-dropdown {
+  position: absolute; top: 100%; right: 0; z-index: 200;
+  min-width: 180px; padding: 4px 0;
+  background: var(--bg-surface); border: 1px solid var(--border);
+  border-radius: var(--radius); box-shadow: var(--shadow-lg);
+}
+.add-cal-dropdown button {
+  display: block; width: 100%; padding: 8px 14px;
+  text-align: left; font-size: 13px; color: var(--text-1);
+  background: none; border: none; cursor: pointer;
+}
+.add-cal-dropdown button:hover { background: var(--bg-hover); }
 .cal-item {
   display: flex; align-items: center; gap: 10px;
   padding: 6px 16px; cursor: pointer;

frontend/index.html

@@ -151,9 +151,16 @@
         <div class="cal-list" id="cal-list">
           <div class="cal-list-header">
             <span>Meine Kalender</span>
-            <button class="icon-btn mini-btn" id="btn-add-account" title="CalDAV-Konto hinzufügen">
+            <div class="add-cal-dropdown-wrap">
+              <button class="icon-btn mini-btn" id="btn-add-cal" title="Kalender hinzufügen">
                 <svg viewBox="0 0 24 24" fill="currentColor"><path d="M19 13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/></svg>
               </button>
+              <div class="add-cal-dropdown hidden" id="add-cal-dropdown">
+                <button data-action="local">Lokaler Kalender</button>
+                <button data-action="caldav">CalDAV-Konto</button>
+                <button data-action="ical">iCal-URL abonnieren</button>
+              </div>
+            </div>
           </div>
           <div id="cal-list-items"></div>
         </div>
@@ -296,6 +303,75 @@
   </div>
 </div>
 
+<!-- Local Calendar Modal -->
+<div id="modal-local-cal" class="modal-overlay hidden">
+  <div class="modal-card" style="max-width:400px">
+    <div class="modal-header">
+      <h3>Lokalen Kalender erstellen</h3>
+      <button class="icon-btn modal-close" data-modal="modal-local-cal">&times;</button>
+    </div>
+    <div class="modal-body">
+      <div class="form-group">
+        <label>Name</label>
+        <input type="text" id="local-cal-name" placeholder="z.B. Persönlich" />
+      </div>
+      <div class="form-group">
+        <label>Farbe</label>
+        <div class="ev-color-row">
+          <input type="text" id="local-cal-color-hex" class="ev-color-hex" maxlength="7" value="#34a853" spellcheck="false" />
+          <div class="ev-color-preview" id="local-cal-color-preview" style="background:#34a853" title="Farbe wählen"></div>
+        </div>
+      </div>
+    </div>
+    <div class="modal-footer">
+      <button class="btn btn-ghost" data-modal="modal-local-cal">Abbrechen</button>
+      <button class="btn btn-primary" id="local-cal-save">Erstellen</button>
+    </div>
+  </div>
+</div>
+
+<!-- iCal Subscription Modal -->
+<div id="modal-ical-sub" class="modal-overlay hidden">
+  <div class="modal-card" style="max-width:480px">
+    <div class="modal-header">
+      <h3>iCal-URL abonnieren</h3>
+      <button class="icon-btn modal-close" data-modal="modal-ical-sub">&times;</button>
+    </div>
+    <div class="modal-body">
+      <div class="form-group">
+        <label>Name</label>
+        <input type="text" id="ical-sub-name" placeholder="z.B. Feiertage" />
+      </div>
+      <div class="form-group">
+        <label>iCal-URL</label>
+        <input type="url" id="ical-sub-url" placeholder="https://example.com/calendar.ics" />
+      </div>
+      <div class="form-group">
+        <label>Farbe</label>
+        <div class="ev-color-row">
+          <input type="text" id="ical-sub-color-hex" class="ev-color-hex" maxlength="7" value="#46bdc6" spellcheck="false" />
+          <div class="ev-color-preview" id="ical-sub-color-preview" style="background:#46bdc6" title="Farbe wählen"></div>
+        </div>
+      </div>
+      <div class="form-group">
+        <label>Aktualisierung</label>
+        <select id="ical-sub-refresh">
+          <option value="15">Alle 15 Minuten</option>
+          <option value="30">Alle 30 Minuten</option>
+          <option value="60" selected>Stündlich</option>
+          <option value="360">Alle 6 Stunden</option>
+          <option value="1440">Täglich</option>
+        </select>
+      </div>
+      <div id="ical-sub-error" class="form-error hidden"></div>
+    </div>
+    <div class="modal-footer">
+      <button class="btn btn-ghost" data-modal="modal-ical-sub">Abbrechen</button>
+      <button class="btn btn-primary" id="ical-sub-save">Abonnieren</button>
+    </div>
+  </div>
+</div>
+
 <!-- Settings Modal -->
 <div id="modal-settings" class="modal-overlay hidden">
   <div class="modal-card" style="max-width:520px">

frontend/js/calendar.js

@@ -27,6 +27,8 @@ let state = {
   currentView: 'month',
   events: [],
   accounts: [],
+  localCalendars: [],
+  icalSubscriptions: [],
   settings: {},
   dimPast: false,
   editingEvent: null,      // null = new event
@@ -35,13 +37,17 @@ let state = {
 
 // ── Public init ───────────────────────────────────────────
 export async function initCalendar() {
-  const [settings, accounts] = await Promise.all([
+  const [settings, accounts, localCalendars, icalSubscriptions] = await Promise.all([
     api.get('/settings/'),
     api.get('/caldav/accounts'),
+    api.get('/local/calendars'),
+    api.get('/ical/subscriptions'),
   ]);
 
   state.settings = settings;
   state.accounts = accounts;
+  state.localCalendars = localCalendars;
+  state.icalSubscriptions = icalSubscriptions;
   state.currentView = settings.default_view || 'month';
   state.dimPast = settings.dim_past_events;
   weekStartDay = settings.week_start_day || 'monday';
@@ -55,6 +61,8 @@ export async function initCalendar() {
   bindSidebar();
   bindEventModal();
   bindAccountModal();
+  bindLocalCalModal();
+  bindICalSubModal();
   bindSettingsModal();
   bindProfileModal();
 }
@@ -246,53 +254,126 @@ function renderMiniCal() {
 // ── Calendar List ─────────────────────────────────────────
 function renderCalendarList() {
   const container = document.getElementById('cal-list-items');
-  if (!state.accounts.length) {
+  let html = '';
-    container.innerHTML = `<div style="padding:8px 16px;font-size:12px;color:var(--text-3)">Kein CalDAV-Konto</div>`;
-    return;
-  }
 
-  const html = state.accounts.map(acc =>
+  // ── CalDAV accounts ────────────────────────────────────
+  if (state.accounts.length) {
+    html += state.accounts.map(acc =>
       `<div class="cal-account-name">${escHtml(acc.name)}</div>` +
       acc.calendars.map(cal =>
-      `<div class="cal-item" data-cal-id="${cal.id}">
+        `<div class="cal-item" data-cal-id="${cal.id}" data-source="caldav">
-        <input type="checkbox" ${cal.enabled ? 'checked' : ''} data-cal-id="${cal.id}" />
+          <input type="checkbox" ${cal.enabled ? 'checked' : ''} data-cal-id="${cal.id}" data-source="caldav" />
-        <div class="cal-item-dot" style="background:${cal.color}" data-cal-id="${cal.id}" title="Farbe ändern"></div>
+          <div class="cal-item-dot" style="background:${cal.color}" data-cal-id="${cal.id}" data-source="caldav" title="Farbe ändern"></div>
-        <span class="cal-item-name">${escHtml(cal.name)}</span>
+          <span class="cal-item-name" data-source="caldav">${escHtml(cal.name)}</span>
-        <button class="icon-btn mini-btn cal-item-remove" data-acc-id="${acc.id}" title="Konto entfernen">
+          <button class="icon-btn mini-btn cal-item-remove" data-acc-id="${acc.id}" data-source="caldav" title="Konto entfernen">
             <svg viewBox="0 0 24 24" fill="currentColor" width="14" height="14"><path d="M6 19c0 1.1.9 2 2 2h8c1.1 0 2-.9 2-2V7H6v12zM19 4h-3.5l-1-1h-5l-1 1H5v2h14V4z"/></svg>
           </button>
         </div>`
       ).join('')
     ).join('');
+  }
+
+  // ── Local calendars ────────────────────────────────────
+  if (state.localCalendars.length) {
+    html += `<div class="cal-account-name">Lokale Kalender</div>`;
+    html += state.localCalendars.map(cal =>
+      `<div class="cal-item" data-cal-id="${cal.id}" data-source="local">
+        <input type="checkbox" ${cal.enabled ? 'checked' : ''} data-cal-id="${cal.id}" data-source="local" />
+        <div class="cal-item-dot" style="background:${cal.color}" data-cal-id="${cal.id}" data-source="local" title="Farbe ändern"></div>
+        <span class="cal-item-name" data-source="local">${escHtml(cal.name)}</span>
+        <button class="icon-btn mini-btn cal-item-remove" data-cal-id="${cal.id}" data-source="local" title="Kalender entfernen">
+          <svg viewBox="0 0 24 24" fill="currentColor" width="14" height="14"><path d="M6 19c0 1.1.9 2 2 2h8c1.1 0 2-.9 2-2V7H6v12zM19 4h-3.5l-1-1h-5l-1 1H5v2h14V4z"/></svg>
+        </button>
+      </div>`
+    ).join('');
+  }
+
+  // ── iCal subscriptions ─────────────────────────────────
+  if (state.icalSubscriptions.length) {
+    html += `<div class="cal-account-name">Abonnements</div>`;
+    html += state.icalSubscriptions.map(sub =>
+      `<div class="cal-item" data-sub-id="${sub.id}" data-source="ical">
+        <input type="checkbox" ${sub.enabled ? 'checked' : ''} data-sub-id="${sub.id}" data-source="ical" />
+        <div class="cal-item-dot" style="background:${sub.color}" data-sub-id="${sub.id}" data-source="ical" title="Farbe ändern"></div>
+        <span class="cal-item-name" data-source="ical">${escHtml(sub.name)}</span>
+        <button class="icon-btn mini-btn cal-item-remove" data-sub-id="${sub.id}" data-source="ical" title="Abo entfernen">
+          <svg viewBox="0 0 24 24" fill="currentColor" width="14" height="14"><path d="M6 19c0 1.1.9 2 2 2h8c1.1 0 2-.9 2-2V7H6v12zM19 4h-3.5l-1-1h-5l-1 1H5v2h14V4z"/></svg>
+        </button>
+      </div>`
+    ).join('');
+  }
+
+  if (!html) {
+    container.innerHTML = `<div style="padding:8px 16px;font-size:12px;color:var(--text-3)">Keine Kalender</div>`;
+    return;
+  }
 
   container.innerHTML = html;
 
+  // ── Checkbox handlers ──────────────────────────────────
   container.querySelectorAll('input[type=checkbox]').forEach(cb => {
     cb.addEventListener('change', async () => {
+      const source = cb.dataset.source;
+      if (source === 'caldav') {
         const calId = parseInt(cb.dataset.calId);
         await api.put(`/caldav/calendars/${calId}`, { enabled: cb.checked });
-      // Update local state
         for (const acc of state.accounts) {
           for (const cal of acc.calendars) {
             if (cal.id === calId) cal.enabled = cb.checked;
           }
         }
+      } else if (source === 'local') {
+        const calId = parseInt(cb.dataset.calId);
+        await api.put(`/local/calendars/${calId}`, { enabled: cb.checked });
+        const cal = state.localCalendars.find(c => c.id === calId);
+        if (cal) cal.enabled = cb.checked;
+      } else if (source === 'ical') {
+        const subId = parseInt(cb.dataset.subId);
+        await api.put(`/ical/subscriptions/${subId}`, { enabled: cb.checked });
+        const sub = state.icalSubscriptions.find(s => s.id === subId);
+        if (sub) sub.enabled = cb.checked;
+      }
       fetchAndRender();
     });
   });
 
+  // ── Color dot handlers ─────────────────────────────────
   container.querySelectorAll('.cal-item-dot').forEach(dot => {
-    dot.addEventListener('click', e => {
+    dot.addEventListener('click', async e => {
       e.stopPropagation();
+      const source = dot.dataset.source;
+      if (source === 'caldav') {
+        openCalColorPicker(dot, parseInt(dot.dataset.calId));
+      } else if (source === 'local') {
         const calId = parseInt(dot.dataset.calId);
-      openCalColorPicker(dot, calId);
+        const cal = state.localCalendars.find(c => c.id === calId);
+        const picked = await openColorPicker(dot, cal?.color || '#34a853');
+        if (picked) {
+          await api.put(`/local/calendars/${calId}`, { color: picked });
+          if (cal) cal.color = picked;
+          renderCalendarList();
+          fetchAndRender();
+        }
+      } else if (source === 'ical') {
+        const subId = parseInt(dot.dataset.subId);
+        const sub = state.icalSubscriptions.find(s => s.id === subId);
+        const picked = await openColorPicker(dot, sub?.color || '#46bdc6');
+        if (picked) {
+          await api.put(`/ical/subscriptions/${subId}`, { color: picked });
+          if (sub) sub.color = picked;
+          renderCalendarList();
+          fetchAndRender();
+        }
+      }
     });
   });
 
+  // ── Rename on double-click ─────────────────────────────
   container.querySelectorAll('.cal-item-name').forEach(nameEl => {
     nameEl.addEventListener('dblclick', e => {
       e.stopPropagation();
-      const calId = parseInt(nameEl.closest('.cal-item').dataset.calId);
+      const item = nameEl.closest('.cal-item');
+      const source = nameEl.dataset.source;
       const currentName = nameEl.textContent;
       const input = document.createElement('input');
       input.type = 'text';
@@ -305,11 +386,22 @@ function renderCalendarList() {
       const save = async () => {
         const newName = input.value.trim();
         if (newName && newName !== currentName) {
+          if (source === 'caldav') {
+            const calId = parseInt(item.dataset.calId);
             await api.put(`/caldav/calendars/${calId}`, { name: newName });
             for (const acc of state.accounts) {
-            for (const cal of acc.calendars) {
+              for (const cal of acc.calendars) { if (cal.id === calId) cal.name = newName; }
-              if (cal.id === calId) cal.name = newName;
             }
+          } else if (source === 'local') {
+            const calId = parseInt(item.dataset.calId);
+            await api.put(`/local/calendars/${calId}`, { name: newName });
+            const cal = state.localCalendars.find(c => c.id === calId);
+            if (cal) cal.name = newName;
+          } else if (source === 'ical') {
+            const subId = parseInt(item.dataset.subId);
+            await api.put(`/ical/subscriptions/${subId}`, { name: newName });
+            const sub = state.icalSubscriptions.find(s => s.id === subId);
+            if (sub) sub.name = newName;
           }
         }
         renderCalendarList();
@@ -323,13 +415,27 @@ function renderCalendarList() {
     });
   });
 
+  // ── Remove handlers ────────────────────────────────────
   container.querySelectorAll('.cal-item-remove').forEach(btn => {
     btn.addEventListener('click', async e => {
       e.stopPropagation();
+      const source = btn.dataset.source;
+      if (source === 'caldav') {
         if (!confirm('CalDAV-Konto wirklich entfernen?')) return;
         const accId = parseInt(btn.dataset.accId);
         await api.delete(`/caldav/accounts/${accId}`);
         state.accounts = state.accounts.filter(a => a.id !== accId);
+      } else if (source === 'local') {
+        if (!confirm('Lokalen Kalender wirklich löschen?')) return;
+        const calId = parseInt(btn.dataset.calId);
+        await api.delete(`/local/calendars/${calId}`);
+        state.localCalendars = state.localCalendars.filter(c => c.id !== calId);
+      } else if (source === 'ical') {
+        if (!confirm('Abonnement wirklich entfernen?')) return;
+        const subId = parseInt(btn.dataset.subId);
+        await api.delete(`/ical/subscriptions/${subId}`);
+        state.icalSubscriptions = state.icalSubscriptions.filter(s => s.id !== subId);
+      }
       renderCalendarList();
       fetchAndRender();
     });
@@ -380,7 +486,33 @@ function bindSidebar() {
   document.getElementById('sidebar-toggle').onclick = () => {
     document.getElementById('sidebar').classList.toggle('collapsed');
   };
-  document.getElementById('btn-add-account').onclick = openAccountModal;
+
+  // Add calendar dropdown
+  const addBtn = document.getElementById('btn-add-cal');
+  const dropdown = document.getElementById('add-cal-dropdown');
+
+  addBtn.onclick = e => {
+    e.stopPropagation();
+    dropdown.classList.toggle('hidden');
+  };
+  document.addEventListener('click', e => {
+    if (!dropdown.contains(e.target) && e.target !== addBtn) {
+      dropdown.classList.add('hidden');
+    }
+  });
+
+  dropdown.querySelector('[data-action="caldav"]').onclick = () => {
+    dropdown.classList.add('hidden');
+    openAccountModal();
+  };
+  dropdown.querySelector('[data-action="local"]').onclick = () => {
+    dropdown.classList.add('hidden');
+    openLocalCalModal();
+  };
+  dropdown.querySelector('[data-action="ical"]').onclick = () => {
+    dropdown.classList.add('hidden');
+    openICalSubModal();
+  };
 }
 
 // ── Event Popup ───────────────────────────────────────────
@@ -426,7 +558,14 @@ function showEventPopup(ev, anchor) {
     if (!confirm(`"${ev.title}" wirklich löschen?`)) return;
     popup.classList.add('hidden');
     try {
+      if (ev.source === 'local') {
+        await api.delete(`/local/events/${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)}`);
+      }
       showToast('Termin gelöscht');
       fetchAndRender();
     } catch (e) { showToast(e.message, true); }
@@ -446,6 +585,7 @@ document.addEventListener('click', e => {
 function populateCalendarSelect(selectedId) {
   const sel = document.getElementById('ev-calendar');
   sel.innerHTML = '';
+  // CalDAV calendars
   state.accounts.forEach(acc => {
     acc.calendars.filter(c => c.enabled).forEach(cal => {
       const opt = document.createElement('option');
@@ -455,6 +595,15 @@ function populateCalendarSelect(selectedId) {
       sel.appendChild(opt);
     });
   });
+  // Local calendars
+  state.localCalendars.filter(c => c.enabled).forEach(cal => {
+    const opt = document.createElement('option');
+    opt.value = `local-${cal.id}`;
+    opt.textContent = cal.name;
+    if (`local-${cal.id}` === selectedId) opt.selected = true;
+    sel.appendChild(opt);
+  });
+  // iCal subscriptions are read-only, not shown here
 }
 
 function openNewEventModal(date) {
@@ -551,7 +700,8 @@ function bindEventModal() {
     if (!title) { showToast('Bitte Titel eingeben', true); return; }
 
     const allDay  = document.getElementById('ev-allday').checked;
-    const calId   = parseInt(document.getElementById('ev-calendar').value);
+    const calVal  = document.getElementById('ev-calendar').value;
+    const isLocal = calVal.startsWith('local-');
     const loc     = document.getElementById('ev-location').value.trim();
     const desc    = document.getElementById('ev-description').value.trim();
     const color   = state.selectedEventColor;
@@ -572,12 +722,32 @@ function bindEventModal() {
 
     try {
       if (state.editingEvent) {
-        await api.put(
+        const ev = state.editingEvent;
-          `/caldav/events/${encodeURIComponent(state.editingEvent.id)}?event_url=${encodeURIComponent(state.editingEvent.url)}`,
+        if (ev.source === 'local') {
+          await api.put(`/local/events/${encodeURIComponent(ev.id)}`,
+            { title, start, end, allDay, location: loc, description: desc, color: color || null }
+          );
+        } else if (ev.source === 'ical') {
+          const subId = ev.calendar_id.replace('ical-', '');
+          await api.put(`/ical/events/${subId}/${encodeURIComponent(ev.id)}`,
             { title, start, end, allDay, location: loc, description: desc, color: color || null }
           );
-        showToast('Termin aktualisiert');
         } else {
+          await api.put(
+            `/caldav/events/${encodeURIComponent(ev.id)}?event_url=${encodeURIComponent(ev.url)}`,
+            { title, start, end, allDay, location: loc, description: desc, color: color || null }
+          );
+        }
+        showToast('Termin aktualisiert');
+      } else if (isLocal) {
+        const calId = parseInt(calVal.replace('local-', ''));
+        await api.post('/local/events', {
+          calendar_id: calId, title, start, end, allDay,
+          location: loc, description: desc, color: color || null,
+        });
+        showToast('Termin erstellt');
+      } else {
+        const calId = parseInt(calVal);
         await api.post('/caldav/events', {
           calendar_id: calId, title, start, end, allDay,
           location: loc, description: desc, color: color || null,
@@ -596,7 +766,14 @@ function bindEventModal() {
     if (!ev) return;
     if (!confirm(`"${ev.title}" wirklich löschen?`)) return;
     try {
+      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)}`);
+      }
       showToast('Termin gelöscht');
       closeModal('modal-event');
       fetchAndRender();
@@ -663,6 +840,94 @@ function bindAccountModal() {
   };
 }
 
+// ── Local Calendar Modal ──────────────────────────────────
+function openLocalCalModal() {
+  document.getElementById('local-cal-name').value = '';
+  document.getElementById('local-cal-color-hex').value = '#34a853';
+  document.getElementById('local-cal-color-preview').style.background = '#34a853';
+  openModal('modal-local-cal');
+}
+
+function bindLocalCalModal() {
+  const preview = document.getElementById('local-cal-color-preview');
+  const hex = document.getElementById('local-cal-color-hex');
+  preview.addEventListener('click', async () => {
+    const picked = await openColorPicker(preview, hex.value || '#34a853');
+    if (picked) { hex.value = picked.toUpperCase(); preview.style.background = picked; }
+  });
+  hex.addEventListener('change', () => {
+    let val = hex.value.trim();
+    if (!val.startsWith('#')) val = '#' + val;
+    if (/^#[0-9a-fA-F]{6}$/.test(val)) { hex.value = val.toUpperCase(); preview.style.background = val; }
+  });
+
+  document.getElementById('local-cal-save').onclick = async () => {
+    const name = document.getElementById('local-cal-name').value.trim();
+    if (!name) { showToast('Bitte Name eingeben', true); return; }
+    const color = hex.value;
+    try {
+      const cal = await api.post('/local/calendars', { name, color });
+      state.localCalendars.push(cal);
+      renderCalendarList();
+      closeModal('modal-local-cal');
+      showToast(`Kalender "${name}" erstellt`);
+    } catch (e) { showToast(e.message, true); }
+  };
+}
+
+// ── iCal Subscription Modal ──────────────────────────────
+function openICalSubModal() {
+  document.getElementById('ical-sub-name').value = '';
+  document.getElementById('ical-sub-url').value = '';
+  document.getElementById('ical-sub-color-hex').value = '#46bdc6';
+  document.getElementById('ical-sub-color-preview').style.background = '#46bdc6';
+  document.getElementById('ical-sub-refresh').value = '60';
+  document.getElementById('ical-sub-error').classList.add('hidden');
+  openModal('modal-ical-sub');
+}
+
+function bindICalSubModal() {
+  const preview = document.getElementById('ical-sub-color-preview');
+  const hex = document.getElementById('ical-sub-color-hex');
+  preview.addEventListener('click', async () => {
+    const picked = await openColorPicker(preview, hex.value || '#46bdc6');
+    if (picked) { hex.value = picked.toUpperCase(); preview.style.background = picked; }
+  });
+  hex.addEventListener('change', () => {
+    let val = hex.value.trim();
+    if (!val.startsWith('#')) val = '#' + val;
+    if (/^#[0-9a-fA-F]{6}$/.test(val)) { hex.value = val.toUpperCase(); preview.style.background = val; }
+  });
+
+  document.getElementById('ical-sub-save').onclick = async () => {
+    const name = document.getElementById('ical-sub-name').value.trim();
+    const url = document.getElementById('ical-sub-url').value.trim();
+    const errEl = document.getElementById('ical-sub-error');
+    if (!name || !url) { errEl.textContent = 'Bitte Name und URL eingeben'; errEl.classList.remove('hidden'); return; }
+    errEl.classList.add('hidden');
+
+    const color = hex.value;
+    const refresh_minutes = parseInt(document.getElementById('ical-sub-refresh').value);
+
+    document.getElementById('ical-sub-save').disabled = true;
+    document.getElementById('ical-sub-save').textContent = 'Lade…';
+    try {
+      const sub = await api.post('/ical/subscriptions', { name, url, color, refresh_minutes });
+      state.icalSubscriptions.push(sub);
+      renderCalendarList();
+      closeModal('modal-ical-sub');
+      showToast(`"${name}" abonniert`);
+      fetchAndRender();
+    } catch (e) {
+      errEl.textContent = e.message;
+      errEl.classList.remove('hidden');
+    } finally {
+      document.getElementById('ical-sub-save').disabled = false;
+      document.getElementById('ical-sub-save').textContent = 'Abonnieren';
+    }
+  };
+}
+
 // ── Settings Modal ────────────────────────────────────────
 function openSettingsModal() {
   const s = state.settings;