Widget Phase 2: events app consumes container_nav widgets

Day view and entry detail now load and render registered container_nav
widgets (e.g. market links) from the same container page — matching how
blog post pages work. Calendar-domain widgets are skipped since we're
already on a calendar page. Adds /w/<widget_domain>/ paginate route for
infinite scroll support.

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

bp/calendar_entry/routes.py

@@ -27,6 +27,8 @@ from datetime import datetime, timezone
 import math
 import logging
 
+from shared.services.widget_registry import widgets
+
 from ..ticket_types.routes import register as register_ticket_types
 
 from .admin.routes import register as register_admin
@@ -220,6 +222,26 @@ def register():
                             ticket_type_id=tt.id,
                         )
 
+        # Widget-driven container nav (market links, etc.)
+        container_nav_loaded = []
+        post_data = getattr(g, "post_data", None)
+        if post_data:
+            post_id = post_data["post"]["id"]
+            post_slug = post_data["post"]["slug"]
+            for w in widgets.container_nav:
+                if w.domain.startswith("calendar"):
+                    continue  # skip — we're already on a calendar page
+                try:
+                    wctx = await w.context_fn(
+                        g.s, container_type="page", container_id=post_id,
+                        post_slug=post_slug,
+                    )
+                    has_data = any(v for v in wctx.values() if isinstance(v, list) and v)
+                    if has_data:
+                        container_nav_loaded.append({"widget": w, "ctx": wctx})
+                except Exception:
+                    pass
+
         return {
             "entry": calendar_entry,
             "entry_posts": entry_posts,
@@ -227,7 +249,8 @@ def register():
             "ticket_sold_count": ticket_sold_count,
             "user_ticket_count": user_ticket_count,
             "user_ticket_counts_by_type": user_ticket_counts_by_type,
-        }        
+            "container_nav_widgets": container_nav_loaded,
+        }
     @bp.get("/")
     @require_admin
     async def get(entry_id: int, **rest):

bp/day/routes.py

@@ -11,6 +11,7 @@ from bp.calendar_entries.routes import register as register_calendar_entries
 from .admin.routes import register as register_admin
 
 from shared.browser.app.redis_cacher import cache_page
+from shared.services.widget_registry import widgets
 
 from models.calendars import CalendarSlot  # add this import
 
@@ -77,6 +78,26 @@ def register():
         result = await g.s.execute(stmt)
         day_slots = list(result.scalars())
 
+        # Widget-driven container nav (market links, etc.)
+        container_nav_loaded = []
+        post_data = getattr(g, "post_data", None)
+        if post_data:
+            post_id = post_data["post"]["id"]
+            post_slug = post_data["post"]["slug"]
+            for w in widgets.container_nav:
+                if w.domain.startswith("calendar"):
+                    continue  # skip — we're already on a calendar page
+                try:
+                    wctx = await w.context_fn(
+                        g.s, container_type="page", container_id=post_id,
+                        post_slug=post_slug,
+                    )
+                    has_data = any(v for v in wctx.values() if isinstance(v, list) and v)
+                    if has_data:
+                        container_nav_loaded.append({"widget": w, "ctx": wctx})
+                except Exception:
+                    pass
+
         return {
             "qsession": qsession,
             "day_date": day_date,
@@ -86,7 +107,8 @@ def register():
             "day_entries": visible.merged_entries,
             "user_entries": visible.user_entries,
             "confirmed_entries": visible.confirmed_entries,
-            "day_slots": day_slots,   # <-- NEW
+            "day_slots": day_slots,
+            "container_nav_widgets": container_nav_loaded,
         }
 
 
@@ -118,5 +140,25 @@ def register():
             )
         return await make_response(html)
 
-    
+    @bp.get("/w/<widget_domain>/")
+    async def widget_paginate(widget_domain: str, **kwargs):
+        """Generic paginated widget endpoint for infinite scroll."""
+        page = int(request.args.get("page", 1))
+        post_data = getattr(g, "post_data", None)
+        if not post_data:
+            abort(404)
+        post_id = post_data["post"]["id"]
+        post_slug = post_data["post"]["slug"]
+        for w in widgets.container_nav:
+            if w.domain == widget_domain:
+                ctx = await w.context_fn(
+                    g.s, container_type="page", container_id=post_id,
+                    post_slug=post_slug, page=page,
+                )
+                html = await render_template(
+                    w.template, ctx=ctx, post=post_data["post"],
+                )
+                return await make_response(html)
+        abort(404)
+
     return bp