add datastar and render shim

repub/web.py

@@ -1,15 +1,43 @@
 from __future__ import annotations
 
-from quart import Quart, url_for
+import hashlib
 
-from repub.pages import admin_page
+import htpy as h
+from quart import Quart, Response, request, url_for
+
+from repub.pages import admin_component, shim_page
+
+
+def _render_shim_page(*, stylesheet_href: str, datastar_src: str) -> tuple[str, str]:
+    head = (
+        h.title["Republisher Admin UI"],
+        h.link(rel="stylesheet", href=stylesheet_href),
+    )
+    body = str(shim_page(datastar_src=datastar_src, head=head))
+    etag = hashlib.sha256(body.encode("utf-8")).hexdigest()
+    return body, etag
 
 
 def create_app() -> Quart:
     app = Quart(__name__)
 
     @app.get("/")
-    async def index() -> str:
-        return str(admin_page(stylesheet_href=url_for("static", filename="app.css")))
+    async def index() -> Response:
+        body, etag = _render_shim_page(
+            stylesheet_href=url_for("static", filename="app.css"),
+            datastar_src=url_for("static", filename="datastar@1.0.0-RC.8.js"),
+        )
+        if request.if_none_match.contains(etag):
+            response = Response(status=304)
+            response.set_etag(etag)
+            return response
+
+        response = Response(body, mimetype="text/html")
+        response.set_etag(etag)
+        return response
+
+    @app.post("/")
+    async def index_patch() -> Response:
+        return Response(str(admin_component()), mimetype="text/html")
 
     return app