map view (Leaflet + OSM), iOS switches, Alarm → Benachrichtigungen

* flats: new lat/lng columns (migration v3); alert geocodes every new flat
  through googlemaps and ships coords in the payload
* web: CSP extended for unpkg (leaflet.css) + tile.openstreetmap.org
* Wohnungen tab: Liste/Karte view toggle (segmented, CSS-only via :has(),
  selection persisted in localStorage). Karte shows passende flats as Pins
  on an OSM tile map; Popup per Pin mit Adresse, Zimmer/m²/€ und Link
* Top-strip toggles are now proper iOS-style toggle switches (single
  rounded knob sliding in a pill, red when on), no descriptive subtitle
* Alarm-Karte verlinkt jetzt auf /einstellungen/benachrichtigungen
  (Filter-Karte bleibt /einstellungen/filter)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

alert/flat.py

@@ -28,6 +28,7 @@ class Flat:
         self.id = self.link  # we could use data.get('id', None) but link is easier to debug
         self.gmaps = maps.Maps()
         self._connectivity = None
+        self._coords = None
         self.address_link_gmaps = f"https://www.google.com/maps/search/?api=1&query={quote(self.address)}"
 
     def __str__(self):
@@ -59,6 +60,12 @@ class Flat:
             self._connectivity = self.gmaps.calculate_score(self.address)
         return self._connectivity
 
+    @property
+    def coords(self):
+        if self._coords is None:
+            self._coords = self.gmaps.geocode(self.address) or (None, None)
+        return self._coords
+
     @property
     def display_address(self):
         if ',' in self.address:

alert/main.py

@@ -32,6 +32,7 @@ class FlatAlerter:
 
     def _flat_payload(self, flat: Flat) -> dict:
         c = flat.connectivity
+        lat, lng = flat.coords
         return {
             "id": flat.id,
             "link": flat.link,
@@ -53,6 +54,8 @@ class FlatAlerter:
             "energy_value": flat.energy_value,
             "energy_certificate": flat.energy_certificate,
             "address_link_gmaps": flat.address_link_gmaps,
+            "lat": lat,
+            "lng": lng,
             "connectivity": {
                 "morning_time": c.get("morning_time", 0),
                 "morning_transfers": c.get("morning_transfers", 0),

alert/maps.py

@@ -23,6 +23,20 @@ class Maps:
     def __init__(self):
         self.gmaps = googlemaps.Client(key=GMAPS_API_KEY)
 
+    def geocode(self, address):
+        """Return (lat, lng) or None for a Berlin address string."""
+        if not address:
+            return None
+        try:
+            res = self.gmaps.geocode(f"{address}, Berlin, Germany")
+            if not res:
+                return None
+            loc = res[0]["geometry"]["location"]
+            return (float(loc["lat"]), float(loc["lng"]))
+        except Exception as e:
+            logger.warning("geocode failed for %r: %s", address, e)
+            return None
+
     def _get_next_weekday(self, date, weekday):
         days_ahead = weekday - date.weekday()
         if days_ahead <= 0:

web/app.py

@@ -132,8 +132,9 @@ async def security_headers(request: Request, call_next):
         "Content-Security-Policy",
         "default-src 'self'; "
         "script-src 'self' https://cdn.tailwindcss.com https://unpkg.com; "
-        "style-src 'self' https://cdn.tailwindcss.com 'unsafe-inline'; "
+        "style-src 'self' https://cdn.tailwindcss.com https://unpkg.com 'unsafe-inline'; "
-        "img-src 'self' data:; connect-src 'self'; frame-ancestors 'none';"
+        "img-src 'self' data: https://*.tile.openstreetmap.org https://tile.openstreetmap.org; "
+        "connect-src 'self'; frame-ancestors 'none';"
     )
     return resp
 
@@ -394,8 +395,22 @@ def _wohnungen_context(user) -> dict:
     allowed, reason = _manual_apply_allowed()
     alert_label, alert_chip = _alert_status(filters_row, notif_row)
     has_running = _has_running_application(uid)
+    map_points = []
+    for item in flats_view:
+        f = item["row"]
+        if f["lat"] is None or f["lng"] is None:
+            continue
+        map_points.append({
+            "lat": f["lat"], "lng": f["lng"],
+            "address": f["address"] or f["link"],
+            "link": f["link"],
+            "rent": f["total_rent"],
+            "rooms": f["rooms"],
+            "size": f["size"],
+        })
     return {
         "flats": flats_view,
+        "map_points": map_points,
         "alert_label": alert_label,
         "alert_chip": alert_chip,
         "filter_summary": _filter_summary(filters_row),
@@ -462,7 +477,7 @@ async def action_save_filters(
 @app.post("/actions/auto-apply")
 async def action_auto_apply(
     request: Request,
-    value: str = Form(...),
+    value: str = Form(default="off"),
     csrf: str = Form(...),
     user=Depends(require_user),
 ):
@@ -834,7 +849,7 @@ async def action_password(
 @app.post("/actions/submit-forms")
 async def action_submit_forms(
     request: Request,
-    value: str = Form(...),
+    value: str = Form(default="off"),
     csrf: str = Form(...),
     user=Depends(require_user),
 ):

web/db.py

@@ -180,6 +180,11 @@ MIGRATIONS: list[str] = [
         value TEXT NOT NULL
     );
     """,
+    # 0003: lat/lng for map view
+    """
+    ALTER TABLE flats ADD COLUMN lat REAL;
+    ALTER TABLE flats ADD COLUMN lng REAL;
+    """,
 ]
 
 
@@ -388,8 +393,8 @@ def upsert_flat(payload: dict) -> bool:
             """INSERT INTO flats(
                 id, link, address, rooms, size, total_rent, sqm_price, year_built, wbs,
                 connectivity_morning_time, connectivity_night_time, address_link_gmaps,
-                payload_json, discovered_at
+                payload_json, discovered_at, lat, lng
-            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)""",
+            ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)""",
             (
                 flat_id, payload.get("link", ""), payload.get("address", ""),
                 payload.get("rooms"), payload.get("size"), payload.get("total_rent"),
@@ -399,6 +404,7 @@ def upsert_flat(payload: dict) -> bool:
                 payload.get("address_link_gmaps"),
                 json.dumps(payload, default=str),
                 now_iso(),
+                payload.get("lat"), payload.get("lng"),
             ),
         )
         return True

web/static/map.js

@@ -0,0 +1,94 @@
+// lazyflat — Leaflet flat map
+// A single Leaflet map instance; re-initialised after every HTMX swap of
+// the Wohnungen body. Also flushes size when the view toggle flips from
+// list to map (Leaflet needs invalidateSize on a hidden-then-shown map).
+
+let mapInstance = null;
+const BERLIN_CENTER = [52.52, 13.405];
+const BERLIN_ZOOM = 11;
+
+function initFlatsMap() {
+  const el = document.getElementById("flats-map");
+  if (!el || typeof L === "undefined") return;
+  if (mapInstance) {
+    try { mapInstance.remove(); } catch (e) {}
+    mapInstance = null;
+  }
+  mapInstance = L.map(el).setView(BERLIN_CENTER, BERLIN_ZOOM);
+  L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
+    attribution: "© OpenStreetMap",
+    maxZoom: 18,
+  }).addTo(mapInstance);
+
+  let data = [];
+  try {
+    data = JSON.parse(el.dataset.flats || "[]");
+  } catch (e) {
+    console.warn("flats-map: bad JSON in data-flats", e);
+  }
+
+  const bounds = [];
+  data.forEach((f) => {
+    if (typeof f.lat !== "number" || typeof f.lng !== "number") return;
+    const m = L.marker([f.lat, f.lng]).addTo(mapInstance);
+    const rent = f.rent ? Math.round(f.rent) + " €" : "";
+    const rooms = f.rooms ? f.rooms + " Zi" : "";
+    const size = f.size ? Math.round(f.size) + " m²" : "";
+    const meta = [rooms, size, rent].filter(Boolean).join(" · ");
+    const safeAddr = (f.address || "").replace(/</g, "&lt;");
+    const safeLink = (f.link || "#").replace(/"/g, "&quot;");
+    m.bindPopup(
+      `<b>${safeAddr}</b>` +
+        (meta ? `<br>${meta}` : "") +
+        `<br><a href="${safeLink}" target="_blank" rel="noopener">Zur Anzeige →</a>`,
+    );
+    bounds.push([f.lat, f.lng]);
+  });
+  if (bounds.length === 1) {
+    mapInstance.setView(bounds[0], 14);
+  } else if (bounds.length > 1) {
+    mapInstance.fitBounds(bounds, { padding: [30, 30] });
+  }
+}
+
+function flushMapSize() {
+  if (mapInstance) {
+    setTimeout(() => mapInstance.invalidateSize(), 50);
+  }
+}
+
+function wireViewToggle() {
+  document.querySelectorAll('input[name="view_mode"]').forEach((r) => {
+    if (r.dataset.wired === "1") return;
+    r.dataset.wired = "1";
+    r.addEventListener("change", (e) => {
+      try {
+        localStorage.setItem("lazyflat_view_mode", e.target.value);
+      } catch (err) {}
+      flushMapSize();
+    });
+  });
+}
+
+function restoreView() {
+  let stored = null;
+  try {
+    stored = localStorage.getItem("lazyflat_view_mode");
+  } catch (err) {}
+  if (!stored) return;
+  const el = document.querySelector(
+    `input[name="view_mode"][value="${stored}"]`,
+  );
+  if (el && !el.checked) {
+    el.checked = true;
+    flushMapSize();
+  }
+}
+
+function onReady() {
+  initFlatsMap();
+  wireViewToggle();
+  restoreView();
+}
+document.addEventListener("DOMContentLoaded", onReady);
+document.body && document.body.addEventListener("htmx:afterSwap", onReady);

web/templates/_wohnungen_body.html

@@ -7,7 +7,7 @@
 
 <!-- Reihe 1: Info-Kacheln Alarm + Filter -->
 <section class="grid grid-cols-2 gap-3">
-    <a class="card px-4 py-2.5 flex flex-col gap-0.5 hover:bg-[#f6fafd]" href="/einstellungen/filter">
+    <a class="card px-4 py-2.5 flex flex-col gap-0.5 hover:bg-[#f6fafd]" href="/einstellungen/benachrichtigungen">
         <div class="text-[11px] uppercase tracking-wide text-slate-500">Alarm</div>
         <div class="flex items-center gap-2">
             <span class="chip chip-{{ alert_chip }}">{{ alert_label }}</span>
@@ -21,68 +21,36 @@
 
 <!-- Reihe 2: Schalter Automatisch bewerben + Final absenden -->
 <section class="grid grid-cols-1 md:grid-cols-2 gap-3">
-    <!-- Automatisch bewerben -->
     <form class="card p-4 flex items-center justify-between gap-3">
         <input type="hidden" name="csrf" value="{{ csrf }}">
-        <div class="flex flex-col gap-0.5">
+        <div class="text-sm font-medium">Automatisch bewerben</div>
-            <div class="text-[11px] uppercase tracking-wide text-slate-500">Automatisch bewerben</div>
+        <label class="switch warn">
-            <div class="text-xs text-slate-500">bei Match ohne Nachfrage bewerben</div>
+            <input type="checkbox" name="value" value="on"
-        </div>
+                   hx-post="/actions/auto-apply"
-        <div class="toggle warn">
+                   hx-trigger="change"
-            <label>
+                   hx-include="closest form"
-                <input type="radio" name="value" value="off"
+                   hx-target="#wohnungen-body"
-                       hx-post="/actions/auto-apply"
+                   hx-swap="outerHTML"
-                       hx-trigger="change"
+                   {% if not auto_apply_enabled %}hx-confirm="Automatisches Bewerben einschalten? Bei jedem passenden Flat wird automatisch beworben."{% endif %}
-                       hx-include="closest form"
+                   {% if auto_apply_enabled %}checked{% endif %}>
-                       hx-target="#wohnungen-body"
+            <span class="switch-visual"></span>
-                       hx-swap="outerHTML"
+        </label>
-                       {% if not auto_apply_enabled %}checked{% endif %}>
-                Aus
-            </label>
-            <label>
-                <input type="radio" name="value" value="on"
-                       hx-post="/actions/auto-apply"
-                       hx-trigger="change"
-                       hx-include="closest form"
-                       hx-target="#wohnungen-body"
-                       hx-swap="outerHTML"
-                       hx-confirm="Automatisches Bewerben einschalten? Bei jedem passenden Flat wird automatisch beworben."
-                       {% if auto_apply_enabled %}checked{% endif %}>
-                An
-            </label>
-        </div>
     </form>
 
-    <!-- Final absenden (inverse of submit_forms: on=real, off=trocken) -->
     <form class="card p-4 flex items-center justify-between gap-3">
         <input type="hidden" name="csrf" value="{{ csrf }}">
-        <div class="flex flex-col gap-0.5">
+        <div class="text-sm font-medium">Final absenden</div>
-            <div class="text-[11px] uppercase tracking-wide text-slate-500">Final absenden</div>
+        <label class="switch warn">
-            <div class="text-xs text-slate-500">aus = Formular ausfüllen, nicht abschicken</div>
+            <input type="checkbox" name="value" value="on"
-        </div>
+                   hx-post="/actions/submit-forms"
-        <div class="toggle warn">
+                   hx-trigger="change"
-            <label>
+                   hx-include="closest form"
-                <input type="radio" name="value" value="off"
+                   hx-target="#wohnungen-body"
-                       hx-post="/actions/submit-forms"
+                   hx-swap="outerHTML"
-                       hx-trigger="change"
+                   {% if not submit_forms %}hx-confirm="Final absenden einschalten? Formulare werden dann WIRKLICH abgeschickt!"{% endif %}
-                       hx-include="closest form"
+                   {% if submit_forms %}checked{% endif %}>
-                       hx-target="#wohnungen-body"
+            <span class="switch-visual"></span>
-                       hx-swap="outerHTML"
+        </label>
-                       {% if not submit_forms %}checked{% endif %}>
-                Aus
-            </label>
-            <label>
-                <input type="radio" name="value" value="on"
-                       hx-post="/actions/submit-forms"
-                       hx-trigger="change"
-                       hx-include="closest form"
-                       hx-target="#wohnungen-body"
-                       hx-swap="outerHTML"
-                       hx-confirm="Final absenden einschalten? Formulare werden dann WIRKLICH abgeschickt!"
-                       {% if submit_forms %}checked{% endif %}>
-                An
-            </label>
-        </div>
     </form>
 </section>
 
@@ -107,17 +75,42 @@
 </div>
 {% endif %}
 
-<!-- Liste passender Wohnungen -->
+<!-- Header + View-Toggle (Liste/Karte) -->
-<section class="card">
+<section class="flex items-center justify-between gap-4 flex-wrap">
-    <div class="flex items-center justify-between px-4 py-3 border-b border-soft gap-4 flex-wrap">
+    <h2 class="font-semibold">Passende Wohnungen auf inberlinwohnen.de</h2>
-        <h2 class="font-semibold">Passende Wohnungen auf inberlinwohnen.de</h2>
+    <div class="flex items-center gap-3 text-xs text-slate-500">
-        <div class="text-xs text-slate-500 flex gap-3 items-center">
+        <span>{{ flats|length }} gefunden</span>
-            <span>{{ flats|length }} gefunden</span>
+        {% if next_scrape_utc %}
-            {% if next_scrape_utc %}
+        <span>· nächste Aktualisierung <span data-countdown-utc="{{ next_scrape_utc }}">…</span></span>
-            <span>· nächste Aktualisierung <span data-countdown-utc="{{ next_scrape_utc }}">…</span></span>
+        {% endif %}
-            {% endif %}
+        <div class="view-toggle ml-2">
+            <label>
+                <input type="radio" name="view_mode" id="v_list" value="list" checked>
+                Liste
+            </label>
+            <label>
+                <input type="radio" name="view_mode" id="v_map" value="map">
+                Karte
+            </label>
         </div>
     </div>
+</section>
+
+<!-- Karte -->
+<section class="view-map">
+    <div class="card p-3">
+        <div id="flats-map" data-flats='{{ map_points | tojson }}'></div>
+        {% if not map_points %}
+        <p class="mt-3 text-xs text-slate-500">
+            Keine Koordinaten für passende Wohnungen vorhanden —
+            entweder sind noch keine neuen Flats geocoded worden oder die Filter lassen noch nichts durch.
+        </p>
+        {% endif %}
+    </div>
+</section>
+
+<!-- Liste -->
+<section class="view-list card">
     <div class="divide-y divide-soft">
         {% for item in flats %}
         {% set f = item.row %}

web/templates/base.html

@@ -7,7 +7,12 @@
     <title>{% block title %}lazyflat{% endblock %}</title>
     <script src="https://cdn.tailwindcss.com"></script>
     <script src="https://unpkg.com/htmx.org@2.0.3"></script>
+    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"
+          integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY=" crossorigin="">
+    <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"
+            integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo=" crossorigin=""></script>
     <script src="/static/app.js" defer></script>
+    <script src="/static/map.js" defer></script>
     <style>
         :root {
             --bg-from: #e4f0fb; --bg-to: #f7fbfe;
@@ -47,17 +52,36 @@
         .chip-warn { background: #fff4dd; color: #a36a1f; border: 1px solid #f5d48b; }
         .chip-bad  { background: #fde6e9; color: #b8404e; border: 1px solid #f5b5bf; }
         .chip-info { background: #e3effc; color: #1f5f99; border: 1px solid #b6d4f0; }
-        /* Segmented toggle (An/Aus Kippschalter) */
+        /* iOS-style toggle switch */
-        .toggle { display: inline-flex; border: 1px solid var(--border); border-radius: 999px;
+        .switch { position: relative; display: inline-block; width: 46px; height: 26px;
-                  overflow: hidden; background: var(--surface); font-size: 0.85rem; font-weight: 500; }
+                  flex-shrink: 0; }
-        .toggle label { padding: 0.45rem 1.1rem; cursor: pointer; user-select: none;
+        .switch input { opacity: 0; width: 0; height: 0; position: absolute; }
-                        color: var(--muted); transition: background .15s, color .15s; }
+        .switch-visual { position: absolute; cursor: pointer; inset: 0;
-        .toggle label + label { border-left: 1px solid var(--border); }
+                         background: #cfd9e6; border-radius: 999px;
-        .toggle label input[type="radio"] { position: absolute; opacity: 0; pointer-events: none;
+                         transition: background .2s; }
-                                            width: 0; height: 0; }
+        .switch-visual::before { content: ""; position: absolute; width: 20px; height: 20px;
-        .toggle label:hover { color: var(--text); background: var(--ghost); }
+                                 left: 3px; top: 3px; background: #fff; border-radius: 50%;
-        .toggle label:has(input:checked) { background: var(--primary); color: #fff; }
+                                 box-shadow: 0 1px 3px rgba(16,37,63,0.25);
-        .toggle.warn label:has(input[value="on"]:checked) { background: var(--danger); }
+                                 transition: transform .2s; }
+        .switch input:checked + .switch-visual { background: var(--primary); }
+        .switch input:checked + .switch-visual::before { transform: translateX(20px); }
+        .switch.warn input:checked + .switch-visual { background: var(--danger); }
+        .switch input:focus-visible + .switch-visual { box-shadow: 0 0 0 3px rgba(47,138,224,.25); }
+
+        /* View toggle (Liste / Karte) — segmented pill, CSS-only via :has() */
+        .view-toggle { display: inline-flex; border: 1px solid var(--border);
+                       border-radius: 999px; overflow: hidden; background: var(--surface);
+                       font-size: 0.85rem; font-weight: 500; }
+        .view-toggle label { padding: 0.35rem 0.95rem; cursor: pointer; user-select: none;
+                             color: var(--muted); transition: background .15s, color .15s; }
+        .view-toggle input { position: absolute; opacity: 0; pointer-events: none;
+                              width: 0; height: 0; }
+        .view-toggle label:hover { color: var(--text); background: var(--ghost); }
+        .view-toggle label:has(input:checked) { background: var(--primary); color: #fff; }
+        .view-map { display: none; }
+        body:has(#v_map:checked) .view-list { display: none; }
+        body:has(#v_map:checked) .view-map { display: block; }
+        #flats-map { height: 520px; border-radius: 10px; }
         .brand-dot {
             width: 2rem; height: 2rem; border-radius: 10px;
             background: linear-gradient(135deg, #66b7f2 0%, #2f8ae0 60%, #fbd76b 100%);