Split cart into 4 microservices: relations, likes, orders, page-config→blog

Phase 1 - Relations service (internal): owns ContainerRelation, exposes
get-children data + attach/detach-child actions. Retargeted events, blog,
market callers from cart to relations.

Phase 2 - Likes service (internal): unified Like model replaces ProductLike
and PostLike with generic target_type/target_slug/target_id. Exposes
is-liked, liked-slugs, liked-ids data + toggle action.

Phase 3 - PageConfig → blog: moved ownership to blog with direct DB queries,
removed proxy endpoints from cart.

Phase 4 - Orders service (public): owns Order/OrderItem + SumUp checkout
flow. Cart checkout now delegates to orders via create-order action.
Webhook/return routes and reconciliation moved to orders.

Phase 5 - Infrastructure: docker-compose, deploy.sh, Dockerfiles updated
for all 3 new services. Added orders_url helper and factory model imports.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

market/bp/product/routes.py

@@ -10,7 +10,7 @@ from quart import (
 )
 from sqlalchemy import select, func, update
 
-from models.market import Product, ProductLike
+from models.market import Product
 from ..browse.services.slugs import canonical_html_slug
 from ..browse.services.blacklist.product import is_product_blocked
 from ..browse.services import db_backend as cb
@@ -18,7 +18,8 @@ from ..browse.services import _massage_product
 from shared.utils import host_url
 from shared.browser.app.redis_cacher import cache_page, clear_cache
 from ..cart.services import total
-from .services.product_operations import toggle_product_like, massage_full_product
+from shared.infrastructure.actions import call_action
+from .services.product_operations import massage_full_product
 
 
 def register():
@@ -132,11 +133,10 @@ def register():
 
       user_id = g.user.id
 
-      liked, error = await toggle_product_like(g.s, user_id, product_slug)
-
-      if error:
-          resp = make_response(error, 404)
-          return resp
+      result = await call_action("likes", "toggle", payload={
+          "user_id": user_id, "target_type": "product", "target_slug": product_slug,
+      })
+      liked = result["liked"]
 
       html = await render_template(
           "_types/browse/like/button.html",

market/bp/product/services/product_operations.py

@@ -1,11 +1,6 @@
 from __future__ import annotations
 
-from typing import Optional
-
-from sqlalchemy import select
-from sqlalchemy.ext.asyncio import AsyncSession
-
-from models.market import Product, ProductLike
+from models.market import Product
 
 
 def massage_full_product(product: Product) -> dict:
@@ -44,52 +39,3 @@ def massage_full_product(product: Product) -> dict:
     return _massage_product(d)
 
 
-async def toggle_product_like(
-    session: AsyncSession,
-    user_id: int,
-    product_slug: str,
-) -> tuple[bool, Optional[str]]:
-    """
-    Toggle a product like for a given user using soft deletes.
-    Returns (liked_state, error_message).
-    - If error_message is not None, an error occurred.
-    - liked_state indicates whether product is now liked (True) or unliked (False).
-    """
-    from sqlalchemy import func, update
-
-    # Get product_id from slug
-    product_id = await session.scalar(
-        select(Product.id).where(Product.slug == product_slug, Product.deleted_at.is_(None))
-    )
-    if not product_id:
-        return False, "Product not found"
-
-    # Check if like exists (not deleted)
-    existing = await session.scalar(
-        select(ProductLike).where(
-            ProductLike.user_id == user_id,
-            ProductLike.product_slug == product_slug,
-            ProductLike.deleted_at.is_(None),
-        )
-    )
-
-    if existing:
-        # Unlike: soft delete the like
-        await session.execute(
-            update(ProductLike)
-            .where(
-                ProductLike.user_id == user_id,
-                ProductLike.product_slug == product_slug,
-                ProductLike.deleted_at.is_(None),
-            )
-            .values(deleted_at=func.now())
-        )
-        return False, None
-    else:
-        # Like: add a new like
-        new_like = ProductLike(
-            user_id=user_id,
-            product_slug=product_slug,
-        )
-        session.add(new_like)
-        return True, None