Validate PF project listings and sync own price

app/scrapers/propertyfinder.py

@@ -119,6 +119,15 @@ def _extract_id_from_url(url: str) -> str | None:
     return m.group(1) if m else None
 
 
+def is_listing_url(url: str) -> bool:
+    """True only for a concrete PF listing URL.
+
+    PF search pages also contain listing-like JSON. Treating them as a detail
+    page can bind monitoring to a random result, so callers must reject them.
+    """
+    return bool(_extract_id_from_url(url or ""))
+
+
 def _is_listing_dict(item: dict) -> bool:
     """Heuristic: a listing dict contains a price plus an id-like field."""
     if not isinstance(item, dict):
@@ -131,12 +140,22 @@ def _is_listing_dict(item: dict) -> bool:
 class PropertyFinderScraper:
     source = SOURCE
 
+    def is_listing_url(self, url: str) -> bool:
+        return is_listing_url(url)
+
+    def listing_id_from_url(self, url: str) -> str | None:
+        return _extract_id_from_url(url)
+
     def fetch_listing(self, url: str) -> ScrapedListing | None:
         """Refetch a known listing URL. Returns:
         - ScrapedListing(is_active=False) if the URL returns 404 (listing removed)
         - ScrapedListing with current data if alive
         - None on network/parse failure (we won't update the DB in that case)
         """
+        if not is_listing_url(url):
+            logger.warning("PF fetch_listing rejected non-listing URL: %s", url)
+            return None
+
         try:
             html = fetch_html(url)
         except ScraperError as e:
@@ -199,6 +218,9 @@ class PropertyFinderScraper:
     def get_permit(self, url: str) -> str | None:
         """Fetch a listing page and return only its DLD permit number (or None).
         Used to compare candidates against our own permit during suggestions."""
+        if not is_listing_url(url):
+            logger.warning("PF get_permit rejected non-listing URL: %s", url)
+            return None
         try:
             html = fetch_html(url)
         except ScraperError as e:
@@ -300,6 +322,8 @@ class PropertyFinderScraper:
                 agent_name, agency_name = _extract_broker(node)
                 share = node.get("share_url") or node.get("path")
                 cand_url = share if str(share).startswith("http") else urljoin(BASE_URL, str(share or ""))
+                if not is_listing_url(cand_url):
+                    continue
 
                 results.append(
                     ScrapedListing(

app/services/monitor.py

@@ -14,7 +14,6 @@ Adding new competitors is done via the web UI (user pastes URLs) — not here.
 from __future__ import annotations
 
 import logging
-import re
 from concurrent.futures import ThreadPoolExecutor
 from datetime import datetime
 
@@ -61,6 +60,12 @@ def detect_source_from_url(url: str) -> Source | None:
     return None
 
 
+def _is_supported_listing_url(source: Source, url: str) -> bool:
+    if source == Source.PROPERTYFINDER:
+        return PF.is_listing_url(url)
+    return source == Source.BAYUT
+
+
 def _fmt_price(value: float | None, currency: str | None = "AED") -> str:
     if value is None:
         return "—"
@@ -80,6 +85,21 @@ def _listing_key(source: Source | str, external_id: str) -> tuple[str, str]:
     return source_value, str(external_id or "")
 
 
+def _project_own_listing_key(project: Project) -> tuple[str, str] | None:
+    if not project.our_url:
+        return None
+    source = detect_source_from_url(project.our_url)
+    if source == Source.PROPERTYFINDER:
+        listing_id = PF.listing_id_from_url(project.our_url)
+        return _listing_key(source, listing_id) if listing_id else None
+    return None
+
+
+def _is_own_listing(project: Project, item: ScrapedListing) -> bool:
+    own_key = _project_own_listing_key(project)
+    return bool(own_key and own_key == _listing_key(item.source, item.external_id))
+
+
 def _format_listing_added(project: Project, listing: CompetitorListing, *, auto: bool) -> str:
     title = listing.title or "без названия"
     prefix = "✅ <b>Автоматически добавлен конкурент</b>" if auto else "✅ <b>Добавлен конкурент</b>"
@@ -119,6 +139,8 @@ def add_competitor_url(db: Session, project: Project, url: str) -> tuple[Competi
             "Bayut временно не поддерживается — площадка перешла на защищённый "
             "рендеринг. Добавляйте ссылки PropertyFinder."
         )
+    if not _is_supported_listing_url(source, url):
+        return None, "Укажите ссылку на конкретное объявление, а не на страницу поиска"
 
     scraper = _scraper_for(source)
     scraped = scraper.fetch_listing(url)
@@ -139,6 +161,8 @@ def add_competitor_url(db: Session, project: Project, url: str) -> tuple[Competi
     )
     if existing:
         return None, "Это объявление уже добавлено в проект"
+    if _is_own_listing(project, scraped):
+        return None, "Это ссылка на наш объект, а не на конкурента"
 
     now = datetime.utcnow()
     listing = CompetitorListing(
@@ -258,6 +282,7 @@ def sync_permit_competitors(
         item
         for item in suggestions["propertyfinder"]
         if _normalize_permit(item.permit_number) == normalized_permit
+        and not _is_own_listing(project, item)
     ]
 
     matched_keys = {_listing_key(item.source, item.external_id) for item in matches}
@@ -306,6 +331,7 @@ def check_project(db: Session, project: Project) -> list[str]:
     """Re-scan all tracked competitor listings for one project. Returns notification texts."""
     changes: list[str] = []
     now = datetime.utcnow()
+    changes.extend(refresh_our_listing(db, project, now=now))
     sync_changes, _, _ = sync_permit_competitors(db, project)
     changes.extend(sync_changes)
 
@@ -372,6 +398,52 @@ def check_project(db: Session, project: Project) -> list[str]:
     return changes
 
 
+def refresh_our_listing(db: Session, project: Project, *, now: datetime | None = None) -> list[str]:
+    """Parse our own listing and keep project.our_price in sync.
+
+    This never creates a competitor listing. It only updates project metadata
+    from the concrete `our_url`, so PF search pages are ignored.
+    """
+    url = (project.our_url or "").strip()
+    if not url:
+        return []
+    source = detect_source_from_url(url)
+    if source is None or source == Source.BAYUT and not BAYUT_ENABLED:
+        return []
+    if not _is_supported_listing_url(source, url):
+        logger.warning("Project %s has non-listing our_url: %s", project.id, url)
+        return []
+
+    scraped = _scraper_for(source).fetch_listing(url)
+    if scraped is None or not scraped.is_active:
+        return []
+
+    changed: list[str] = []
+    if scraped.permit_number and not project.dld_permit:
+        project.dld_permit = scraped.permit_number
+
+    old_price = project.our_price
+    new_price = scraped.price
+    if new_price is not None and old_price != new_price:
+        project.our_price = new_price
+        if old_price is not None:
+            delta = new_price - old_price
+            pct = (delta / old_price * 100.0) if old_price else 0.0
+            arrow = "📈" if delta > 0 else "📉"
+            changed.append(
+                f"{arrow} <b>Наша цена скорректирована</b> — {_source_label(source.value)}\n"
+                f"{project.title}\n"
+                f"Было: {_fmt_price(old_price)}\n"
+                f"Стало: {_fmt_price(new_price, scraped.currency or 'AED')} "
+                f"({'+' if delta > 0 else ''}{delta:,.0f} / {pct:+.1f}%)\n"
+                f"{url}".replace(",", " ")
+            )
+    if now is not None:
+        project.last_checked_at = now
+    db.flush()
+    return changed
+
+
 def _notify_owner(project: Project, changes: list[str]) -> None:
     if not changes:
         return
@@ -463,9 +535,10 @@ def suggest_similar(
         excluded.update((l.source.value, l.external_id) for l in project.listings)
     if project.our_url:
         own_src = detect_source_from_url(project.our_url)
-        m = re.search(r"(\d+)\.html", project.our_url)
-        if own_src and m:
-            excluded.add((own_src.value, m.group(1)))
+        if own_src == Source.PROPERTYFINDER:
+            listing_id = PF.listing_id_from_url(project.our_url)
+            if listing_id:
+                excluded.add((own_src.value, listing_id))
     for src in out:
         out[src] = [c for c in out[src] if (src, c.external_id) not in excluded]
 
@@ -479,8 +552,9 @@ def suggest_similar(
                 permits = list(ex.map(PF.get_permit, [c.url for c in pf]))
             for cand, permit in zip(pf, permits):
                 cand.permit_number = permit
-            matches = [c for c in pf if c.permit_number == our_permit]
-            others = [c for c in pf if c.permit_number != our_permit]
+            normalized = _normalize_permit(our_permit)
+            matches = [c for c in pf if _normalize_permit(c.permit_number) == normalized]
+            others = [c for c in pf if _normalize_permit(c.permit_number) != normalized]
             out["propertyfinder"] = matches + others[:_SUGGEST_OTHERS_LIMIT]
         except Exception as e:
             logger.exception("PF permit enrichment failed: %s", e)