first commit

backend/app/services/share_preview.py

@@ -0,0 +1,37 @@
+from html import escape
+
+from app.config import settings
+from app.schemas import EventEditionPublic
+
+
+def render_share_html(public: EventEditionPublic, slug: str) -> str:
+    title = escape(public.title)
+    desc = escape(
+        public.meta_description
+        or public.description
+        or f"{public.title} — Desi Clans, Bengaluru"
+    )
+    page_url = f"{settings.public_site_url.rstrip('/')}/events/{slug}"
+    image = public.cover_image_url or (public.media[0].url if public.media else "")
+    if image and image.startswith("/"):
+        image = f"{settings.public_api_url.rstrip('/')}{image}"
+    image_tag = f'<meta property="og:image" content="{escape(image)}" />' if image else ""
+
+    return f"""<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="utf-8" />
+  <title>{title} | Desi Clans</title>
+  <meta name="description" content="{desc}" />
+  <meta property="og:title" content="{title}" />
+  <meta property="og:description" content="{desc}" />
+  <meta property="og:type" content="website" />
+  <meta property="og:url" content="{escape(page_url)}" />
+  {image_tag}
+  <meta name="twitter:card" content="summary_large_image" />
+  <meta http-equiv="refresh" content="0;url={escape(page_url)}" />
+</head>
+<body>
+  <p><a href="{escape(page_url)}">{title}</a> — Bengaluru</p>
+</body>
+</html>"""