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rose-ash/market/bp/fragments/routes.py
giles b3d853ad35
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Add Phase 5: link-card fragments, oEmbed endpoints, OG meta
- 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>
2026-02-24 21:44:11 +00:00

108 lines
3.6 KiB
Python

"""Market app fragment endpoints.
Exposes HTML fragments at ``/internal/fragments/<type>`` for consumption
by other coop apps via the fragment client.
"""
from __future__ import annotations
from quart import Blueprint, Response, g, render_template, request
from shared.infrastructure.fragments import FRAGMENT_HEADER
from shared.services.registry import services
def register():
bp = Blueprint("fragments", __name__, url_prefix="/internal/fragments")
_handlers: dict[str, object] = {}
@bp.before_request
async def _require_fragment_header():
if not request.headers.get(FRAGMENT_HEADER):
return Response("", status=403)
@bp.get("/<fragment_type>")
async def get_fragment(fragment_type: str):
handler = _handlers.get(fragment_type)
if handler is None:
return Response("", status=200, content_type="text/html")
html = await handler()
return Response(html, status=200, content_type="text/html")
# --- container-nav fragment: market links --------------------------------
async def _container_nav_handler():
container_type = request.args.get("container_type", "page")
container_id = int(request.args.get("container_id", 0))
post_slug = request.args.get("post_slug", "")
markets = await services.market.marketplaces_for_container(
g.s, container_type, container_id,
)
if not markets:
return ""
return await render_template(
"fragments/container_nav_markets.html",
markets=markets, post_slug=post_slug,
)
_handlers["container-nav"] = _container_nav_handler
# --- link-card fragment: product preview card --------------------------------
async def _link_card_handler():
from sqlalchemy import select
from shared.models.market import Product
from shared.infrastructure.urls import market_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} -->")
product = (
await g.s.execute(select(Product).where(Product.slug == s))
).scalar_one_or_none()
if product:
parts.append(await render_template(
"fragments/link_card.html",
title=product.title,
image=product.image,
description_short=product.description_short,
brand=product.brand,
regular_price=product.regular_price,
special_price=product.special_price,
link=market_url(f"/product/{product.slug}/"),
))
return "\n".join(parts)
# Single mode
if not slug:
return ""
product = (
await g.s.execute(select(Product).where(Product.slug == slug))
).scalar_one_or_none()
if not product:
return ""
return await render_template(
"fragments/link_card.html",
title=product.title,
image=product.image,
description_short=product.description_short,
brand=product.brand,
regular_price=product.regular_price,
special_price=product.special_price,
link=market_url(f"/product/{product.slug}/"),
)
_handlers["link-card"] = _link_card_handler
bp._fragment_handlers = _handlers
return bp