manufacturers directory: dynamic per-show filter buttons

- page.tsx fetches bb.events (confirmed + tentative) and passes shows
  list into DirectoryClient alongside the tracked_companies rows
- DirectoryClient renders an "All shows" + "NAB+IBC" + one chip per
  event in bb.events. Shows attendee count when known; tags "soon" on
  shows without exhibitor mappings yet (ANGA COM, MPTS, BroadcastAsia,
  SET Expo, NAB NY, SATIS, Hamburg Open, CABSAT, etc.)
- Filter logic uses tracked_companies.shows_attending text[] (added in
  migration 0008) instead of the legacy exhibits_nab / exhibits_ibc
  booleans — scales to N shows.

The directory page was previously capped at 1,000 rows (PostgREST
default max_rows). Server-side bumped to 5000 in a paired supabase
env update — directory now renders all 1,366 manufacturers.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/app/manufacturers/DirectoryClient.tsx

@@ -11,22 +11,44 @@ type Manufacturer = {
   categories: string[] | null;
   exhibits_nab: boolean;
   exhibits_ibc: boolean;
+  shows_attending: string[] | null;
   mention_count: number;
   featured: boolean;
 };
 
-const SHOW_FILTERS = ["All", "NAB Show", "IBC", "Both shows"] as const;
-type ShowFilter = (typeof SHOW_FILTERS)[number];
+type ShowOption = {
+  slug: string;
+  short_name: string | null;
+  name: string;
+  start_date: string;
+  end_date: string;
+  status: string;
+};
 
 export default function ManufacturerDirectoryClient({
   manufacturers,
+  shows = [],
 }: {
   manufacturers: Manufacturer[];
+  shows?: ShowOption[];
 }) {
   const [q, setQ] = useState("");
-  const [showFilter, setShowFilter] = useState<ShowFilter>("All");
+  // showFilter is now a show slug from bb.events (e.g. 'nab-show-2026') or
+  // 'all' / 'both-major' (NAB+IBC overlap).
+  const [showFilter, setShowFilter] = useState<string>("all");
   const [letter, setLetter] = useState<string>("All");
 
+  // Per-show exhibitor counts for badge display + auto-hiding empty shows.
+  const showCounts = useMemo(() => {
+    const counts: Record<string, number> = {};
+    for (const m of manufacturers) {
+      for (const s of m.shows_attending || []) {
+        counts[s] = (counts[s] || 0) + 1;
+      }
+    }
+    return counts;
+  }, [manufacturers]);
+
   const filtered = useMemo(() => {
     const needle = q.trim().toLowerCase();
     return manufacturers.filter((m) => {
@@ -34,9 +56,11 @@ export default function ManufacturerDirectoryClient({
         const hay = `${m.company_name} ${m.bio || ""}`.toLowerCase();
         if (!hay.includes(needle)) return false;
       }
-      if (showFilter === "NAB Show" && !m.exhibits_nab) return false;
-      if (showFilter === "IBC" && !m.exhibits_ibc) return false;
-      if (showFilter === "Both shows" && !(m.exhibits_nab && m.exhibits_ibc)) return false;
+      if (showFilter === "both-major") {
+        if (!(m.exhibits_nab && m.exhibits_ibc)) return false;
+      } else if (showFilter !== "all") {
+        if (!(m.shows_attending || []).includes(showFilter)) return false;
+      }
       if (letter !== "All") {
         const c = (m.company_name || "").trim().charAt(0).toUpperCase();
         if (letter === "#") {
@@ -63,20 +87,53 @@ export default function ManufacturerDirectoryClient({
             className="w-full bg-[#0d0d0d] border border-[#2a2a2a] rounded-md px-3 py-2 text-sm focus:outline-none focus:ring-2 focus:ring-[#3b82f6]/40"
           />
         </div>
-        <div className="flex gap-1 bg-[#0d0d0d] border border-[#252525] rounded-md p-1">
-          {SHOW_FILTERS.map((f) => (
+      </div>
+
+      {/* Per-show filter chips. Every event from bb.events shows up; ones
+          without exhibitor mappings yet render a "(soon)" badge so the
+          admin can see what's still missing data. */}
+      <div className="flex flex-wrap gap-1.5 mb-4">
+        <button
+          type="button"
+          onClick={() => setShowFilter("all")}
+          className={`px-3 py-1.5 rounded text-xs font-semibold ${
+            showFilter === "all" ? "bg-[#3b82f6] text-white" : "bg-[#0d0d0d] border border-[#252525] text-[#aaa] hover:bg-[#1a1a1a]"
+          }`}
+        >
+          All shows <span className="ml-1 opacity-60">({manufacturers.length.toLocaleString()})</span>
+        </button>
+        <button
+          type="button"
+          onClick={() => setShowFilter("both-major")}
+          className={`px-3 py-1.5 rounded text-xs font-semibold ${
+            showFilter === "both-major" ? "bg-[#3b82f6] text-white" : "bg-[#0d0d0d] border border-[#252525] text-[#aaa] hover:bg-[#1a1a1a]"
+          }`}
+        >
+          NAB + IBC <span className="ml-1 opacity-60">({manufacturers.filter((m) => m.exhibits_nab && m.exhibits_ibc).length})</span>
+        </button>
+        {shows.map((s) => {
+          const count = showCounts[s.slug] || 0;
+          const active = showFilter === s.slug;
+          const label = s.short_name || s.name;
+          return (
             <button
-              key={f}
+              key={s.slug}
               type="button"
-              onClick={() => setShowFilter(f)}
+              onClick={() => setShowFilter(s.slug)}
               className={`px-3 py-1.5 rounded text-xs font-semibold ${
-                showFilter === f ? "bg-[#3b82f6] text-white" : "text-[#aaa] hover:bg-[#1a1a1a]"
+                active ? "bg-[#3b82f6] text-white" : "bg-[#0d0d0d] border border-[#252525] text-[#aaa] hover:bg-[#1a1a1a]"
               }`}
+              title={`${s.name} · ${s.start_date}${count === 0 ? " · exhibitor list coming soon" : ""}`}
             >
-              {f}
+              {label}
+              {count > 0 ? (
+                <span className="ml-1 opacity-60">({count})</span>
+              ) : (
+                <span className="ml-1 text-amber-400 text-[10px]">soon</span>
+              )}
             </button>
-          ))}
-        </div>
+          );
+        })}
       </div>
 
       <nav className="flex flex-wrap gap-1 mb-6 text-xs">

src/app/manufacturers/page.tsx

@@ -29,16 +29,26 @@ type ManufacturerRow = {
   categories: string[] | null;
   exhibits_nab: boolean;
   exhibits_ibc: boolean;
+  shows_attending: string[] | null;
   mention_count: number;
   featured: boolean;
 };
 
+export type ShowOption = {
+  slug: string;
+  short_name: string | null;
+  name: string;
+  start_date: string;
+  end_date: string;
+  status: string;
+};
+
 export default async function ManufacturersIndex() {
   const supabase = await createClient();
   const { data, error } = await supabase
     .from("tracked_companies")
     .select(
-      "slug, company_name, bio, logo_url, categories, exhibits_nab, exhibits_ibc, mention_count, featured"
+      "slug, company_name, bio, logo_url, categories, exhibits_nab, exhibits_ibc, shows_attending, mention_count, featured"
     )
     .eq("directory_visible", true)
     .not("slug", "is", null)
@@ -47,7 +57,17 @@ export default async function ManufacturersIndex() {
     .order("company_name", { ascending: true })
     .limit(2000);
 
+  // Every confirmed/tentative event from bb.events. Each event's slug
+  // (e.g. 'nab-show-2026') maps to tracked_companies.shows_attending so
+  // we can filter the directory by show.
+  const { data: eventsData } = await supabase
+    .from("events")
+    .select("slug, short_name, name, start_date, end_date, status")
+    .in("status", ["confirmed", "tentative"])
+    .order("start_date", { ascending: true });
+
   const list = (data || []) as ManufacturerRow[];
+  const events = (eventsData || []) as ShowOption[];
   const nabCount = list.filter((m) => m.exhibits_nab).length;
   const ibcCount = list.filter((m) => m.exhibits_ibc).length;
 
@@ -72,7 +92,7 @@ export default async function ManufacturersIndex() {
           )}
         </header>
 
-        <ManufacturerDirectoryClient manufacturers={list} />
+        <ManufacturerDirectoryClient manufacturers={list} shows={events} />
 
         <section className="mt-16 border-t border-[#252525] pt-8 text-sm text-[#888] leading-relaxed">
           <p>