posts and avif

shared/interfaces/Catcrafts.Shared-Route.cppm

@@ -23,6 +23,7 @@ export enum class RouteKind {
     About,           // /about — the person behind the company
     Projects,
     Posts,
+    Post,            // /posts/<slug> — one post, in full
     Demos,           // /demos — the list
     Demo,            // /demos/<slug>
     Shop,            // /shop — the (currently single-item) product list
@@ -45,7 +46,8 @@ export struct Route {
     std::string query;           // raw, including leading '?', or empty
     // Non-empty when the request should be canonicalised to a different URL.
     std::string canonicalRedirect;
-    // The <slug> of /shop/<slug>, empty for every other route.
+    // The <slug> of /shop/<slug>, /demos/<slug>, /legal/<slug> or /posts/<slug>
+    // (and the token of /order/<token>); empty for every other route.
     std::string slug;
 };
 
@@ -134,6 +136,20 @@ export Route ParseRoute(std::string_view path, std::string_view query = {}) {
         return r;
     }
 
+    // /posts/<slug>. Whether a slug names a post the site actually has is the
+    // dispatcher's question, exactly as it is for /shop/<slug>; this only
+    // decides that the URL is shaped like a post page at all.
+    if (p.starts_with("/posts/")) {
+        const std::string_view slug = p.substr(7);
+        if (IsValidSlug(slug)) {
+            r.kind = RouteKind::Post;
+            r.slug = std::string(slug);
+            return r;
+        }
+        r.kind = RouteKind::NotFound;
+        return r;
+    }
+
     if (p.starts_with("/demos/")) {
         const std::string_view slug = p.substr(7);
         if (IsValidSlug(slug)) {
@@ -183,6 +199,20 @@ export struct NavItem {
     RouteKind kind;
 };
 
+// Which nav entry a route highlights. A route that is not itself a nav entry
+// borrows its section's: an individual post and the retired /blog URL both sit
+// under Posts. Shared so the three call sites (the server, the CLI renderer and
+// the wasm router) cannot disagree about where the reader is — they each used
+// to spell the /blog case out, and the third one to be added would have been
+// the third chance to forget it.
+export RouteKind NavKindFor(RouteKind kind) {
+    switch (kind) {
+        case RouteKind::Post:
+        case RouteKind::LegacyBlog: return RouteKind::Posts;
+        default:                    return kind;
+    }
+}
+
 export std::span<const NavItem> NavItems() {
     static constexpr std::array<NavItem, 6> items{{
         { "Home",     "/",         RouteKind::Home     },