Unify post admin nav across all services

Move post admin header into shared/sexp/helpers.py so blog, cart,
events, and market all render the same admin row with identical nav:
calendars | markets | payments | entries | data | edit | settings.

All links are external (cross-service). The selected item shows
highlighted on the right and as white text next to "admin" on the left.

- blog: delegates to shared helper, removes blog-specific nav builder
- cart: delegates to shared helper for payments admin
- events: adds shared admin row (selected=calendars) to calendar admin
- market: adds /<slug>/admin/ route + page_admin blueprint, delegates
  to shared helper (selected=markets). Fixes 404 on page-level admin.

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

blog/sexp/sexp_components.py

@@ -16,6 +16,7 @@ from shared.sexp.jinja_bridge import render, load_service_components
 from shared.sexp.helpers import (
     call_url, get_asset_url, root_header_html,
     post_header_html as _shared_post_header_html,
+    post_admin_header_html as _shared_post_admin_header_html,
     oob_header_html,
     search_mobile_html, search_desktop_html,
     full_page, oob_page,
@@ -87,81 +88,9 @@ def _post_header_html(ctx: dict, *, oob: bool = False) -> str:
 # ---------------------------------------------------------------------------
 
 def _post_admin_header_html(ctx: dict, *, oob: bool = False, selected: str = "") -> str:
-    """Post admin header row with admin icon and nav links."""
-    from quart import url_for as qurl
-
-    post = ctx.get("post") or {}
-    slug = post.get("slug", "")
-    hx_select = ctx.get("hx_select_search", "#main-panel")
-    select_colours = ctx.get("select_colours", "")
-    styles = ctx.get("styles") or {}
-    nav_btn = styles.get("nav_button", "") if isinstance(styles, dict) else getattr(styles, "nav_button", "")
-
-    admin_href = qurl("blog.post.admin.admin", slug=slug)
-    label_html = render("blog-admin-label")
-    if selected:
-        label_html += f' <span class="text-white">{escape(selected)}</span>'
-
-    nav_html = _post_admin_nav_html(ctx, selected=selected)
-
-    return render("menu-row",
-        id="post-admin-row", level=2,
-        link_href=admin_href, link_label_html=label_html,
-        nav_html=nav_html, child_id="post-admin-header-child", oob=oob,
-    )
-
-
-def _post_admin_nav_html(ctx: dict, *, selected: str = "") -> str:
-    """Post admin desktop nav: calendars, markets, payments, entries, data, edit, settings."""
-    from quart import url_for as qurl
-
-    post = ctx.get("post") or {}
-    slug = post.get("slug", "")
-    hx_select = ctx.get("hx_select_search", "#main-panel")
-    select_colours = ctx.get("select_colours", "")
-    styles = ctx.get("styles") or {}
-    nav_btn = styles.get("nav_button", "") if isinstance(styles, dict) else getattr(styles, "nav_button", "")
-
-    # Base and selected class for nav items
-    base_cls = "justify-center cursor-pointer flex flex-row items-center gap-2 rounded bg-stone-200 text-black p-3"
-    selected_cls = "justify-center cursor-pointer flex flex-row items-center gap-2 rounded !bg-stone-500 !text-white p-3"
-
-    parts = []
-
-    # External links to events / market services
-    events_url_fn = ctx.get("events_url")
-    market_url_fn = ctx.get("market_url")
-    if callable(events_url_fn):
-        for url_fn, path, label in [
-            (events_url_fn, f"/{slug}/admin/", "calendars"),
-            (market_url_fn, f"/{slug}/admin/", "markets"),
-            (ctx.get("cart_url"), f"/{slug}/admin/payments/", "payments"),
-        ]:
-            if not callable(url_fn):
-                continue
-            href = url_fn(path)
-            cls = selected_cls if label == selected else (nav_btn or base_cls)
-            parts.append(render("blog-admin-nav-item",
-                href=href, nav_btn_class=cls, label=label,
-                select_colours=select_colours,
-            ))
-
-    # HTMX links
-    for endpoint, label in [
-        ("blog.post.admin.entries", "entries"),
-        ("blog.post.admin.data", "data"),
-        ("blog.post.admin.edit", "edit"),
-        ("blog.post.admin.settings", "settings"),
-    ]:
-        href = qurl(endpoint, slug=slug)
-        is_sel = label == selected
-        parts.append(render("nav-link",
-            href=href, label=label, select_colours=select_colours,
-            is_selected=is_sel,
-            aclass=(selected_cls + " " + select_colours) if is_sel else None,
-        ))
-
-    return "".join(parts)
+    """Post admin header row — delegates to shared helper."""
+    slug = (ctx.get("post") or {}).get("slug", "")
+    return _shared_post_admin_header_html(ctx, slug, oob=oob, selected=selected)
 
 
 # ---------------------------------------------------------------------------

cart/sexp/sexp_components.py

@@ -12,8 +12,8 @@ from markupsafe import escape
 
 from shared.sexp.jinja_bridge import render, load_service_components
 from shared.sexp.helpers import (
-    call_url, root_header_html, search_desktop_html,
-    search_mobile_html, full_page, oob_page,
+    call_url, root_header_html, post_admin_header_html,
+    search_desktop_html, search_mobile_html, full_page, oob_page,
 )
 from shared.infrastructure.urls import market_product_url, cart_url
 
@@ -725,15 +725,9 @@ async def render_checkout_error_page(ctx: dict, error: str | None = None, order:
 
 def _cart_page_admin_header_html(ctx: dict, page_post: Any, *, oob: bool = False,
                                   selected: str = "") -> str:
-    """Build the page-level admin header row."""
-    from quart import url_for
-    link_href = url_for("page_admin.admin")
-    label_html = '<i class="fa fa-cog" aria-hidden="true"></i> admin'
-    if selected:
-        label_html += f' <span class="text-white">{escape(selected)}</span>'
-    return render("menu-row", id="page-admin-row", level=2, colour="sky",
-                  link_href=link_href, link_label_html=label_html,
-                  child_id="page-admin-header-child", oob=oob)
+    """Build the page-level admin header row — delegates to shared helper."""
+    slug = page_post.slug if page_post else ""
+    return post_admin_header_html(ctx, slug, oob=oob, selected=selected)
 
 
 def _cart_admin_main_panel_html(ctx: dict) -> str:

events/sexp/sexp_components.py

@@ -15,6 +15,7 @@ from shared.sexp.jinja_bridge import render, load_service_components
 from shared.sexp.helpers import (
     call_url, get_asset_url, root_header_html,
     post_header_html as _shared_post_header_html,
+    post_admin_header_html,
     oob_header_html,
     search_mobile_html, search_desktop_html,
     full_page, oob_page,
@@ -1352,11 +1353,19 @@ async def render_day_admin_oob(ctx: dict) -> str:
 # Calendar admin
 # ---------------------------------------------------------------------------
 
+def _events_post_admin_header_html(ctx: dict, *, oob: bool = False,
+                                    selected: str = "") -> str:
+    """Post-level admin row for events — delegates to shared helper."""
+    slug = (ctx.get("post") or {}).get("slug", "")
+    return post_admin_header_html(ctx, slug, oob=oob, selected=selected)
+
+
 async def render_calendar_admin_page(ctx: dict) -> str:
     """Full page: calendar admin."""
     content = _calendar_admin_main_panel_html(ctx)
     hdr = root_header_html(ctx)
     child = (_post_header_html(ctx)
+             + _events_post_admin_header_html(ctx, selected="calendars")
              + _calendar_header_html(ctx) + _calendar_admin_header_html(ctx))
     hdr += render("header-child", inner_html=child)
     return full_page(ctx, header_rows_html=hdr, content_html=content)
@@ -1365,7 +1374,8 @@ async def render_calendar_admin_page(ctx: dict) -> str:
 async def render_calendar_admin_oob(ctx: dict) -> str:
     """OOB response: calendar admin."""
     content = _calendar_admin_main_panel_html(ctx)
-    oobs = _calendar_header_html(ctx, oob=True)
+    oobs = (_events_post_admin_header_html(ctx, oob=True, selected="calendars")
+            + _calendar_header_html(ctx, oob=True))
     oobs += _oob_header_html("calendar-header-child", "calendar-admin-header-child",
                               _calendar_admin_header_html(ctx))
     return oob_page(ctx, oobs_html=oobs, content_html=content)
@@ -1383,6 +1393,7 @@ async def render_slots_page(ctx: dict) -> str:
     content = render_slots_table(slots, calendar)
     hdr = root_header_html(ctx)
     child = (_post_header_html(ctx)
+             + _events_post_admin_header_html(ctx, selected="calendars")
              + _calendar_header_html(ctx) + _calendar_admin_header_html(ctx))
     hdr += render("header-child", inner_html=child)
     return full_page(ctx, header_rows_html=hdr, content_html=content)
@@ -1393,7 +1404,8 @@ async def render_slots_oob(ctx: dict) -> str:
     slots = ctx.get("slots") or []
     calendar = ctx.get("calendar")
     content = render_slots_table(slots, calendar)
-    oobs = _calendar_admin_header_html(ctx, oob=True)
+    oobs = (_events_post_admin_header_html(ctx, oob=True, selected="calendars")
+            + _calendar_admin_header_html(ctx, oob=True))
     return oob_page(ctx, oobs_html=oobs, content_html=content)
 
 

market/app.py

@@ -11,7 +11,7 @@ from sqlalchemy import select
 from shared.infrastructure.factory import create_base_app
 from shared.config import config
 
-from bp import register_market_bp, register_all_markets, register_page_markets, register_fragments, register_actions, register_data
+from bp import register_market_bp, register_all_markets, register_page_markets, register_page_admin, register_fragments, register_actions, register_data
 
 
 async def market_context() -> dict:
@@ -111,6 +111,12 @@ def create_app() -> "Quart":
         url_prefix="/<slug>",
     )
 
+    # Page admin: /<slug>/admin/ — post-level admin for markets
+    app.register_blueprint(
+        register_page_admin(),
+        url_prefix="/<slug>/admin",
+    )
+
     # Market blueprint nested under post slug: /<page_slug>/<market_slug>/
     app.register_blueprint(
         register_market_bp(

market/bp/__init__.py

@@ -2,6 +2,7 @@ from .market.routes import register as register_market_bp
 from .product.routes import register as register_product
 from .all_markets.routes import register as register_all_markets
 from .page_markets.routes import register as register_page_markets
+from .page_admin.routes import register as register_page_admin
 from .fragments import register_fragments
 from .actions import register_actions
 from .data import register_data

market/bp/page_admin/routes.py

@@ -0,0 +1,25 @@
+from __future__ import annotations
+
+from quart import make_response, Blueprint
+
+from shared.browser.app.authz import require_admin
+from shared.browser.app.utils.htmx import is_htmx_request
+
+
+def register():
+    bp = Blueprint("page_admin", __name__)
+
+    @bp.get("/")
+    @require_admin
+    async def admin(**kwargs):
+        from shared.sexp.page import get_template_context
+        from sexp.sexp_components import render_page_admin_page, render_page_admin_oob
+
+        tctx = await get_template_context()
+        if not is_htmx_request():
+            html = await render_page_admin_page(tctx)
+        else:
+            html = await render_page_admin_oob(tctx)
+        return await make_response(html)
+
+    return bp

market/sexp/sexp_components.py

@@ -15,6 +15,7 @@ from shared.sexp.jinja_bridge import render, load_service_components
 from shared.sexp.helpers import (
     call_url, get_asset_url, root_header_html,
     post_header_html as _post_header_html,
+    post_admin_header_html,
     oob_header_html as _oob_header_html,
     search_mobile_html, search_desktop_html,
     full_page, oob_page,
@@ -1420,7 +1421,7 @@ async def render_market_admin_page(ctx: dict) -> str:
     content = "market admin"
 
     hdr = root_header_html(ctx)
-    child = _post_header_html(ctx) + _market_header_html(ctx) + _market_admin_header_html(ctx)
+    child = _post_header_html(ctx) + _market_header_html(ctx) + _market_admin_header_html(ctx, selected="markets")
     hdr += render("header-child", inner_html=child)
     return full_page(ctx, header_rows_html=hdr, content_html=content)
 
@@ -1431,21 +1432,37 @@ async def render_market_admin_oob(ctx: dict) -> str:
 
     oobs = _market_header_html(ctx, oob=True)
     oobs += _oob_header_html("market-header-child", "market-admin-header-child",
-                              _market_admin_header_html(ctx))
+                              _market_admin_header_html(ctx, selected="markets"))
     return oob_page(ctx, oobs_html=oobs, content_html=content)
 
 
-def _market_admin_header_html(ctx: dict, *, oob: bool = False) -> str:
-    """Build market admin header row."""
-    from quart import url_for
+def _market_admin_header_html(ctx: dict, *, oob: bool = False, selected: str = "") -> str:
+    """Build market admin header row — delegates to shared helper."""
+    slug = (ctx.get("post") or {}).get("slug", "")
+    return post_admin_header_html(ctx, slug, oob=oob, selected=selected)
 
-    link_href = url_for("market.admin.admin")
-    return render(
-        "menu-row",
-        id="market-admin-row", level=3,
-        link_href=link_href, link_label="admin", icon="fa fa-cog",
-        child_id="market-admin-header-child", oob=oob,
-    )
+
+# ---------------------------------------------------------------------------
+# Page admin (/<slug>/admin/) — post-level admin for markets
+# ---------------------------------------------------------------------------
+
+async def render_page_admin_page(ctx: dict) -> str:
+    """Full page: page-level market admin."""
+    slug = (ctx.get("post") or {}).get("slug", "")
+    admin_hdr = post_admin_header_html(ctx, slug, selected="markets")
+    hdr = root_header_html(ctx)
+    child = _post_header_html(ctx) + admin_hdr
+    hdr += render("header-child", inner_html=child)
+    content = '<div id="main-panel"><div class="p-4 text-stone-500">Market admin</div></div>'
+    return full_page(ctx, header_rows_html=hdr, content_html=content)
+
+
+async def render_page_admin_oob(ctx: dict) -> str:
+    """OOB response: page-level market admin."""
+    slug = (ctx.get("post") or {}).get("slug", "")
+    oobs = post_admin_header_html(ctx, slug, oob=True, selected="markets")
+    content = '<div id="main-panel"><div class="p-4 text-stone-500">Market admin</div></div>'
+    return oob_page(ctx, oobs_html=oobs, content_html=content)
 
 
 # ---------------------------------------------------------------------------

shared/sexp/helpers.py

@@ -8,6 +8,8 @@ from __future__ import annotations
 
 from typing import Any
 
+from markupsafe import escape
+
 from .jinja_bridge import render
 from .page import SEARCH_HEADERS_MOBILE, SEARCH_HEADERS_DESKTOP
 
@@ -104,6 +106,62 @@ def post_header_html(ctx: dict, *, oob: bool = False) -> str:
     )
 
 
+def post_admin_header_html(ctx: dict, slug: str, *, oob: bool = False,
+                           selected: str = "", admin_href: str = "") -> str:
+    """Shared post admin header row with unified nav across all services.
+
+    Shows: calendars | markets | payments | entries | data | edit | settings
+    All links are external (cross-service).  The *selected* item is
+    highlighted on the nav and shown in white next to the admin label.
+    """
+    # Label: shield icon + "admin" + optional selected sub-page in white
+    label_html = '<i class="fa fa-shield-halved" aria-hidden="true"></i> admin'
+    if selected:
+        label_html += f' <span class="text-white">{escape(selected)}</span>'
+
+    # Nav items — all external links to the appropriate service
+    select_colours = ctx.get("select_colours", "")
+    base_cls = ("justify-center cursor-pointer flex flex-row items-center"
+                " gap-2 rounded bg-stone-200 text-black p-3")
+    selected_cls = ("justify-center cursor-pointer flex flex-row items-center"
+                    " gap-2 rounded !bg-stone-500 !text-white p-3")
+    nav_parts: list[str] = []
+    items = [
+        ("events_url", f"/{slug}/admin/", "calendars"),
+        ("market_url", f"/{slug}/admin/", "markets"),
+        ("cart_url",   f"/{slug}/admin/payments/", "payments"),
+        ("blog_url",   f"/{slug}/admin/entries/", "entries"),
+        ("blog_url",   f"/{slug}/admin/data/", "data"),
+        ("blog_url",   f"/{slug}/admin/edit/", "edit"),
+        ("blog_url",   f"/{slug}/admin/settings/", "settings"),
+    ]
+    for url_key, path, label in items:
+        url_fn = ctx.get(url_key)
+        if not callable(url_fn):
+            continue
+        href = url_fn(path)
+        is_sel = label == selected
+        cls = selected_cls if is_sel else base_cls
+        aria = ' aria-selected="true"' if is_sel else ""
+        nav_parts.append(
+            f'<div class="relative nav-group">'
+            f'<a href="{escape(href)}"{aria}'
+            f' class="{cls} {escape(select_colours)}">'
+            f'{escape(label)}</a></div>'
+        )
+    nav_html = "".join(nav_parts)
+
+    if not admin_href:
+        blog_fn = ctx.get("blog_url")
+        admin_href = blog_fn(f"/{slug}/admin/") if callable(blog_fn) else f"/{slug}/admin/"
+
+    return render("menu-row",
+        id="post-admin-row", level=2,
+        link_href=admin_href, link_label_html=label_html,
+        nav_html=nav_html, child_id="post-admin-header-child", oob=oob,
+    )
+
+
 def oob_header_html(parent_id: str, child_id: str, row_html: str) -> str:
     """Wrap a header row in an OOB swap div with child placeholder."""
     return render("oob-header",