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Add Phase 5: link-card fragments, oEmbed endpoints, OG meta

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- fetch_fragment_batch() for N+1 avoidance with per-key Redis cache
- link-card fragment handlers in blog, market, events, federation (single + batch mode)
- link_card.html templates per app with content-specific previews
- shared/infrastructure/oembed.py: build_oembed_response, build_og_meta, build_oembed_link_tag
- GET /oembed routes on blog, market, events
- og_meta + oembed_link rendering in base template <head>
- INTERNAL_URL_ARTDAG in docker-compose.yml for cross-stack fragment fetches

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
giles
2026-02-24 21:44:11 +00:00
parent 4d7f8cfea2
commit b3d853ad35
15 changed files with 601 additions and 0 deletions
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29
events/app.py
View File

@@ -161,6 +161,35 @@ def create_app() -> "Quart":
from bp.ticket_admin.routes import register as register_ticket_admin
app.register_blueprint(register_ticket_admin())
# --- oEmbed endpoint ---
@app.get("/oembed")
async def oembed():
from urllib.parse import urlparse
from quart import jsonify
from shared.infrastructure.urls import events_url
from shared.infrastructure.oembed import build_oembed_response
url = request.args.get("url", "")
if not url:
return jsonify({"error": "url parameter required"}), 400
parsed = urlparse(url)
slug = parsed.path.strip("/").split("/")[0] if parsed.path.strip("/") else ""
if not slug:
return jsonify({"error": "could not extract slug"}), 404
post = await services.blog.get_post_by_slug(g.s, slug)
if not post:
return jsonify({"error": "not found"}), 404
resp = build_oembed_response(
title=post.title,
oembed_type="link",
thumbnail_url=post.feature_image,
url=events_url(f"/{post.slug}"),
)
return jsonify(resp)
return app

49
events/bp/fragments/routes.py
View File

@@ -125,6 +125,55 @@ def register():
_handlers["account-page"] = _account_page_handler
# --- link-card fragment: event page preview card ----------------------------
async def _link_card_handler():
from shared.infrastructure.urls import events_url
slug = request.args.get("slug", "")
keys_raw = request.args.get("keys", "")
# Batch mode
if keys_raw:
slugs = [k.strip() for k in keys_raw.split(",") if k.strip()]
parts = []
for s in slugs:
parts.append(f"<!-- fragment:{s} -->")
post = await services.blog.get_post_by_slug(g.s, s)
if post:
calendars = await services.calendar.calendars_for_container(
g.s, "page", post.id,
)
cal_names = ", ".join(c.name for c in calendars) if calendars else ""
parts.append(await render_template(
"fragments/link_card.html",
title=post.title,
feature_image=post.feature_image,
calendar_names=cal_names,
link=events_url(f"/{post.slug}"),
))
return "\n".join(parts)
# Single mode
if not slug:
return ""
post = await services.blog.get_post_by_slug(g.s, slug)
if not post:
return ""
calendars = await services.calendar.calendars_for_container(
g.s, "page", post.id,
)
cal_names = ", ".join(c.name for c in calendars) if calendars else ""
return await render_template(
"fragments/link_card.html",
title=post.title,
feature_image=post.feature_image,
calendar_names=cal_names,
link=events_url(f"/{post.slug}"),
)
_handlers["link-card"] = _link_card_handler
bp._fragment_handlers = _handlers
return bp

17
events/templates/fragments/link_card.html Normal file
View File

@@ -0,0 +1,17 @@
<a href="{{ link }}" class="block rounded border border-stone-200 bg-white hover:bg-stone-50 transition-colors no-underline" data-fragment="link-card" data-app="events" data-hx-disable>
<div class="flex flex-row items-start gap-3 p-3">
{% if feature_image %}
<img src="{{ feature_image }}" alt="" class="flex-shrink-0 w-16 h-16 rounded object-cover">
{% else %}
<div class="flex-shrink-0 w-16 h-16 rounded bg-stone-100 flex items-center justify-center text-stone-400">
<i class="fas fa-calendar text-lg"></i>
</div>
{% endif %}
<div class="flex-1 min-w-0">
<div class="font-medium text-stone-900 text-sm clamp-2">{{ title }}</div>
{% if calendar_names %}
<div class="text-xs text-stone-500 mt-0.5">{{ calendar_names }}</div>
{% endif %}
</div>
</div>
</a>