Add Home Assistant calendar sync via webhook

Every successful menu fetch now POSTs the day's items to HA_WEBHOOK_URL
(when set), so an HA automation can turn it into a calendar event. Surface
the push result as a "Calendar Sync" badge on the status card, hidden
unless HA_WEBHOOK_URL is configured.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KsJqAZ82Veyf5oihBr71S5

app.py

@@ -12,6 +12,7 @@ from datetime import date, datetime
 from email.message import EmailMessage
 from pathlib import Path
 
+import requests
 import schedule
 from flask import Flask, jsonify, request
 
@@ -34,7 +35,7 @@ _DEFAULTS = {
     "vacations": [],
 }
 
-_status = {"last_run": None, "last_result": None, "last_message": None}
+_status = {"last_run": None, "last_result": None, "last_message": None, "calendar_result": None}
 _lock = threading.Lock()
 
 
@@ -82,6 +83,18 @@ def _send_email_sms(message: str, phone: str, gateway: str) -> None:
     log.info(f"Sent ✓ → {to_addr}")
 
 
+def _push_to_home_assistant(items: list[str], date_str: str) -> bool:
+    """Returns True if a push was attempted and succeeded, False if skipped (not configured)."""
+    webhook_url = os.environ.get("HA_WEBHOOK_URL")
+    if not webhook_url:
+        return False
+    log.info(f"Pushing menu → Home Assistant webhook")
+    resp = requests.post(webhook_url, json={"date": date_str, "items": items}, timeout=10)
+    resp.raise_for_status()
+    log.info("Home Assistant push ✓")
+    return True
+
+
 def run_job() -> None:
     global _status
     settings = load_settings()
@@ -104,6 +117,7 @@ def run_job() -> None:
             message = f"No lunch menu posted for {date_str} (may be a break or holiday)."
     except Exception as e:
         log.exception("Menu fetch failed")
+        items, date_str = [], None
         message = f"Error fetching Mariposa lunch menu: {e}"
 
     if len(message) > 1400:
@@ -111,6 +125,14 @@ def run_job() -> None:
 
     log.info(f"Message:\n{message}")
 
+    calendar_result = "n/a"
+    if items:
+        try:
+            calendar_result = "ok" if _push_to_home_assistant(items, date_str) else "n/a"
+        except Exception as e:
+            log.error(f"Home Assistant push failed: {e}")
+            calendar_result = f"error: {e}"
+
     errors = []
     for phone in phones:
         try:
@@ -123,6 +145,7 @@ def run_job() -> None:
         "last_run": datetime.now().isoformat(),
         "last_result": "error: " + "; ".join(errors) if errors else "ok",
         "last_message": message,
+        "calendar_result": calendar_result,
     }
 
 
@@ -168,8 +191,7 @@ def index():
 
 @app.route("/icon.png")
 def icon():
-    import requests as req
-    r = req.get(MASCOT_URL, timeout=10)
+    r = requests.get(MASCOT_URL, timeout=10)
     return r.content, 200, {"Content-Type": "image/png", "Cache-Control": "public, max-age=86400"}
 
 
@@ -346,6 +368,7 @@ input:focus { outline: 2px solid var(--primary); outline-offset: -1px; border-co
       <div class="stat"><dt>Result</dt><dd id="s-result">—</dd></div>
       <div class="stat"><dt>Next Scheduled</dt><dd id="s-next">—</dd></div>
       <div class="stat"><dt>Mode</dt><dd id="s-mode">—</dd></div>
+      <div class="stat" id="s-cal-stat" style="display:none;"><dt>Calendar Sync</dt><dd id="s-cal">—</dd></div>
     </dl>
     <div id="s-last-msg" style="display:none;margin-top:14px;padding:10px 12px;background:#1c2128;border-radius:8px;font-size:.8rem;color:#c9d1d9;white-space:pre-wrap;"></div>
   </div>
@@ -479,6 +502,15 @@ function applyStatus(st) {
   document.getElementById('s-mode').innerHTML = vac
     ? `<span class="badge badge-yellow">Vacation: ${vac}</span>`
     : '<span class="badge badge-green">Active</span>';
+  const calStat = document.getElementById('s-cal-stat');
+  const cal = st.calendar_result;
+  if (cal && cal !== 'n/a') {
+    calStat.style.display = '';
+    const calCls = cal === 'ok' ? 'badge-green' : 'badge-red';
+    document.getElementById('s-cal').innerHTML = `<span class="badge ${calCls}">${cal}</span>`;
+  } else {
+    calStat.style.display = 'none';
+  }
   const msgEl = document.getElementById('s-last-msg');
   if (st.last_message) {
     msgEl.textContent = st.last_message;