feat(web): add bgm viewer navigation

apps/web/src/App.tsx

@@ -4,6 +4,12 @@ import ModPage from './pages/ModPage';
 import FullSetupPage from './pages/FullSetupPage';
 import BgmPage from './pages/BgmPage';
 import BgmPackagePage from './pages/BgmPackagePage';
+import PartsPage from './pages/PartsPage';
+import PartPage from './pages/PartPage';
+import SurfacesPage from './pages/SurfacesPage';
+import SurfacePage from './pages/SurfacePage';
+import SetupsPage from './pages/SetupsPage';
+import SetupPage from './pages/SetupPage';
 
 export default function App() {
   return (
@@ -30,6 +36,12 @@ export default function App() {
           <Route path="/mod/:id/setup" element={<FullSetupPage />} />
           <Route path="/bgm" element={<BgmPage />} />
           <Route path="/bgm/:id" element={<BgmPackagePage />} />
+          <Route path="/bgm/:id/parts" element={<PartsPage />} />
+          <Route path="/bgm/:id/parts/:type/:part" element={<PartPage />} />
+          <Route path="/bgm/:id/surfaces" element={<SurfacesPage />} />
+          <Route path="/bgm/:id/surfaces/:type/:surface" element={<SurfacePage />} />
+          <Route path="/bgm/:id/setups" element={<SetupsPage />} />
+          <Route path="/bgm/:id/setups/:type/:setup" element={<SetupPage />} />
         </Routes>
       </main>
     </div>

apps/web/src/components/Breadcrumbs.tsx

@@ -0,0 +1,33 @@
+import { Link } from 'react-router-dom';
+
+export interface Crumb {
+  label: string;
+  /** Where the crumb links; omit for the current (last) crumb. */
+  to?: string;
+}
+
+/**
+ * A breadcrumb navigation trail. The last crumb is the current page and is
+ * rendered as plain text; earlier crumbs link to their routes.
+ */
+export default function Breadcrumbs({ crumbs }: { crumbs: Crumb[] }) {
+  return (
+    <nav aria-label="Breadcrumb" className="flex flex-wrap items-center gap-1 text-sm text-zinc-400">
+      {crumbs.map((crumb, i) => {
+        const last = i === crumbs.length - 1;
+        return (
+          <span key={i} className="flex items-center gap-1">
+            {i > 0 && <span className="text-zinc-600">/</span>}
+            {crumb.to && !last ? (
+              <Link to={crumb.to} className="hover:text-zinc-100">
+                {crumb.label}
+              </Link>
+            ) : (
+              <span className={last ? 'text-zinc-100' : ''}>{crumb.label}</span>
+            )}
+          </span>
+        );
+      })}
+    </nav>
+  );
+}

apps/web/src/components/PackageMissing.tsx

@@ -0,0 +1,15 @@
+import { Link } from 'react-router-dom';
+import Breadcrumbs from './Breadcrumbs';
+
+/** Shown when a bgm package id doesn't resolve to a known package. */
+export default function PackageMissing({ id }: { id: string }) {
+  return (
+    <div className="space-y-4">
+      <Breadcrumbs crumbs={[{ label: 'Board games', to: '/bgm' }, { label: id }]} />
+      <p className="text-sm text-zinc-400">No package “{id}”.</p>
+      <Link to="/bgm" className="text-sm text-zinc-300 underline">
+        Back to all packages
+      </Link>
+    </div>
+  );
+}

apps/web/src/pages/BgmPackagePage.tsx

@@ -1,36 +1,47 @@
 import { Link, useParams } from 'react-router-dom';
-import packages from 'virtual:bgm/packages';
+import Breadcrumbs from '../components/Breadcrumbs';
+import PackageMissing from '../components/PackageMissing';
+import { findPackage } from './bgm';
 
 /**
- * Detail view for a single bgm package, looked up by id from the
- * `virtual:bgm/packages` module's list of all discovered packages.
+ * Summary view for a single bgm package: its metadata and counts of parts,
+ * surfaces, and setups, each linking to its collection page.
  */
 export default function BgmPackagePage() {
   const { id } = useParams<{ id: string }>();
-  const pkg = packages.find((p) => p.meta.id === id);
+  const pkg = findPackage(id);
+  if (!pkg) return <PackageMissing id={id ?? ''} />;
 
-  if (!pkg) {
-    return (
-      <div className="space-y-4">
-        <p className="text-sm text-zinc-400">No package “{id}”.</p>
-        <Link to="/bgm" className="text-sm text-zinc-300 underline">
-          Back to all packages
-        </Link>
-      </div>
-    );
-  }
+  const partCount = Object.keys(pkg.parts).length;
+  const surfaceCount = Object.keys(pkg.surfaces).length;
+  const setupCount = Object.keys(pkg.setups).length;
 
-  const parts = Object.values(pkg.parts);
-  const surfaces = Object.values(pkg.surfaces);
-  const setups = Object.values(pkg.setups);
+  const sections = [
+    {
+      label: 'Parts',
+      count: partCount,
+      to: `/bgm/${pkg.meta.id}/parts`,
+    },
+    {
+      label: 'Surfaces',
+      count: surfaceCount,
+      to: `/bgm/${pkg.meta.id}/surfaces`,
+    },
+    {
+      label: 'Setups',
+      count: setupCount,
+      to: `/bgm/${pkg.meta.id}/setups`,
+    },
+  ];
 
   return (
     <div className="space-y-6">
+      <Breadcrumbs
+        crumbs={[{ label: 'Board games', to: '/bgm' }, { label: pkg.meta.title ?? pkg.meta.id }]}
+      />
+
       <div>
-        <Link to="/bgm" className="text-sm text-zinc-400 hover:text-zinc-200">
-          ← All packages
-        </Link>
-        <h1 className="mt-1 text-2xl font-semibold">{pkg.meta.title ?? pkg.meta.id}</h1>
+        <h1 className="text-2xl font-semibold">{pkg.meta.title ?? pkg.meta.id}</h1>
         <p className="mt-1 text-sm text-zinc-400">
           {pkg.meta.designer ? `${pkg.meta.designer} · ` : ''}
           {pkg.meta.players ? `${pkg.meta.players} players · ` : ''}
@@ -38,52 +49,19 @@ export default function BgmPackagePage() {
         </p>
       </div>
 
-      <section className="space-y-2">
-        <h2 className="text-lg font-semibold">Parts</h2>
-        <ul className="grid gap-2 sm:grid-cols-2">
-          {parts.map((part) => (
-            <li key={`${part.type}#${part.id}`} className="rounded-lg border border-zinc-800 bg-zinc-900 p-3">
-              <div className="font-medium">
-                {part.type}#{part.id}
-              </div>
-              <div className="mt-1 text-xs text-zinc-400">
-                {part.size ? `size ${part.size.join('×')}mm` : ''}
-                {part.fillet ? ` · fillet ${part.fillet}mm` : ''}
-              </div>
+      <ul className="grid gap-2 sm:grid-cols-3">
+        {sections.map((section) => (
+          <li key={section.label}>
+            <Link
+              to={section.to}
+              className="block rounded-lg border border-zinc-800 bg-zinc-900 p-3 hover:border-zinc-600"
+            >
+              <div className="font-medium">{section.label}</div>
+              <div className="mt-1 text-sm text-zinc-400">{section.count}</div>
+            </Link>
           </li>
         ))}
       </ul>
-      </section>
-
-      <section className="space-y-2">
-        <h2 className="text-lg font-semibold">Surfaces</h2>
-        <ul className="grid gap-2 sm:grid-cols-2">
-          {surfaces.map((surface) => (
-            <li key={`${surface.type}#${surface.id}`} className="rounded-lg border border-zinc-800 bg-zinc-900 p-3">
-              <div className="font-medium">
-                {surface.type}#{surface.id}
-              </div>
-              <div className="mt-1 text-xs text-zinc-400">
-                {surface.size ? `size ${surface.size.join('×')}mm` : ''} · {surface.layout.length} routes
-              </div>
-            </li>
-          ))}
-        </ul>
-      </section>
-
-      <section className="space-y-2">
-        <h2 className="text-lg font-semibold">Setups</h2>
-        {setups.map((setup) => (
-          <div key={`${setup.type}#${setup.id}`} className="rounded-lg border border-zinc-800 bg-zinc-900 p-3">
-            <div className="font-medium">
-              {setup.type}#{setup.id}
-            </div>
-            <pre className="mt-2 overflow-x-auto text-xs text-zinc-400">
-              {JSON.stringify(setup.setup, null, 2)}
-            </pre>
-          </div>
-        ))}
-      </section>
     </div>
   );
 }

apps/web/src/pages/BgmPage.tsx

@@ -1,5 +1,6 @@
 import { Link } from 'react-router-dom';
 import packages from 'virtual:bgm/packages';
+import Breadcrumbs from '../components/Breadcrumbs';
 
 /**
  * Lists every discovered bgm package. The `virtual:bgm/packages` module's
@@ -9,6 +10,7 @@ import packages from 'virtual:bgm/packages';
 export default function BgmPage() {
   return (
     <div className="space-y-6">
+      <Breadcrumbs crumbs={[{ label: 'Board games' }]} />
       <div>
         <h1 className="text-2xl font-semibold">Board games</h1>
         <p className="mt-1 text-sm text-zinc-400">

apps/web/src/pages/PartPage.tsx

@@ -0,0 +1,45 @@
+import { useParams } from 'react-router-dom';
+import Breadcrumbs from '../components/Breadcrumbs';
+import PackageMissing from '../components/PackageMissing';
+import { findPackage } from './bgm';
+
+/** Detail view for a single part within a package. */
+export default function PartPage() {
+  const { id, type, part } = useParams<{ id: string; type: string; part: string }>();
+  const pkg = findPackage(id);
+  if (!pkg) return <PackageMissing id={id ?? ''} />;
+
+  const found = pkg.parts[`${type}#${part}`];
+
+  return (
+    <div className="space-y-6">
+      <Breadcrumbs
+        crumbs={[
+          { label: 'Board games', to: '/bgm' },
+          { label: pkg.meta.title ?? pkg.meta.id, to: `/bgm/${pkg.meta.id}` },
+          { label: 'Parts', to: `/bgm/${pkg.meta.id}/parts` },
+          { label: `${type}#${part}` },
+        ]}
+      />
+
+      {!found ? (
+        <p className="text-sm text-zinc-400">No part “{type}#{part}”.</p>
+      ) : (
+        <div className="space-y-4">
+          <div>
+            <h1 className="text-2xl font-semibold">
+              {found.type}#{found.id}
+            </h1>
+            <p className="mt-1 text-sm text-zinc-400">
+              {found.size ? `size ${found.size.join('×')}mm` : ''}
+              {found.fillet ? ` · fillet ${found.fillet}mm` : ''}
+            </p>
+          </div>
+          <pre className="overflow-x-auto rounded-lg border border-zinc-800 bg-zinc-900 p-3 text-xs text-zinc-400">
+            {JSON.stringify(found, null, 2)}
+          </pre>
+        </div>
+      )}
+    </div>
+  );
+}

apps/web/src/pages/PartsPage.tsx

@@ -0,0 +1,61 @@
+import { Link, useParams } from 'react-router-dom';
+import Breadcrumbs from '../components/Breadcrumbs';
+import PackageMissing from '../components/PackageMissing';
+import { findPackage } from './bgm';
+
+/**
+ * All parts of a package, grouped by part type. Each part links to its
+ * `/bgm/:id/parts/:type/:part` detail page.
+ */
+export default function PartsPage() {
+  const { id } = useParams<{ id: string }>();
+  const pkg = findPackage(id);
+  if (!pkg) return <PackageMissing id={id ?? ''} />;
+
+  const parts = Object.values(pkg.parts);
+  const byType = new Map<string, typeof parts>();
+  for (const part of parts) {
+    const list = byType.get(part.type) ?? [];
+    list.push(part);
+    byType.set(part.type, list);
+  }
+
+  return (
+    <div className="space-y-6">
+      <Breadcrumbs
+        crumbs={[
+          { label: 'Board games', to: '/bgm' },
+          { label: pkg.meta.title ?? pkg.meta.id, to: `/bgm/${pkg.meta.id}` },
+          { label: 'Parts' },
+        ]}
+      />
+
+      <div>
+        <h1 className="text-2xl font-semibold">Parts</h1>
+        <p className="mt-1 text-sm text-zinc-400">{parts.length} part{parts.length === 1 ? '' : 's'}.</p>
+      </div>
+
+      {[...byType.entries()].map(([type, list]) => (
+        <section key={type} className="space-y-2">
+          <h2 className="text-lg font-semibold">{type}</h2>
+          <ul className="grid gap-2 sm:grid-cols-2">
+            {list.map((part) => (
+              <li key={`${part.type}#${part.id}`} className="rounded-lg border border-zinc-800 bg-zinc-900 p-3">
+                <Link
+                  to={`/bgm/${pkg.meta.id}/parts/${part.type}/${part.id}`}
+                  className="font-medium hover:text-zinc-100"
+                >
+                  {part.id}
+                </Link>
+                <div className="mt-1 text-xs text-zinc-400">
+                  {part.size ? `size ${part.size.join('×')}mm` : ''}
+                  {part.fillet ? ` · fillet ${part.fillet}mm` : ''}
+                </div>
+              </li>
+            ))}
+          </ul>
+        </section>
+      ))}
+    </div>
+  );
+}

apps/web/src/pages/SetupPage.tsx

@@ -0,0 +1,41 @@
+import { useParams } from 'react-router-dom';
+import Breadcrumbs from '../components/Breadcrumbs';
+import PackageMissing from '../components/PackageMissing';
+import { findPackage } from './bgm';
+
+/** Detail view for a single setup within a package. */
+export default function SetupPage() {
+  const { id, type, setup } = useParams<{ id: string; type: string; setup: string }>();
+  const pkg = findPackage(id);
+  if (!pkg) return <PackageMissing id={id ?? ''} />;
+
+  const found = pkg.setups[`${type}#${setup}`];
+
+  return (
+    <div className="space-y-6">
+      <Breadcrumbs
+        crumbs={[
+          { label: 'Board games', to: '/bgm' },
+          { label: pkg.meta.title ?? pkg.meta.id, to: `/bgm/${pkg.meta.id}` },
+          { label: 'Setups', to: `/bgm/${pkg.meta.id}/setups` },
+          { label: `${type}#${setup}` },
+        ]}
+      />
+
+      {!found ? (
+        <p className="text-sm text-zinc-400">No setup “{type}#{setup}”.</p>
+      ) : (
+        <div className="space-y-4">
+          <div>
+            <h1 className="text-2xl font-semibold">
+              {found.type}#{found.id}
+            </h1>
+          </div>
+          <pre className="overflow-x-auto rounded-lg border border-zinc-800 bg-zinc-900 p-3 text-xs text-zinc-400">
+            {JSON.stringify(found.setup, null, 2)}
+          </pre>
+        </div>
+      )}
+    </div>
+  );
+}

apps/web/src/pages/SetupsPage.tsx

@@ -0,0 +1,48 @@
+import { Link, useParams } from 'react-router-dom';
+import Breadcrumbs from '../components/Breadcrumbs';
+import PackageMissing from '../components/PackageMissing';
+import { findPackage } from './bgm';
+
+/**
+ * All setups of a package. Each setup links to its
+ * `/bgm/:id/setups/:type/:setup` detail page.
+ */
+export default function SetupsPage() {
+  const { id } = useParams<{ id: string }>();
+  const pkg = findPackage(id);
+  if (!pkg) return <PackageMissing id={id ?? ''} />;
+
+  const setups = Object.values(pkg.setups);
+
+  return (
+    <div className="space-y-6">
+      <Breadcrumbs
+        crumbs={[
+          { label: 'Board games', to: '/bgm' },
+          { label: pkg.meta.title ?? pkg.meta.id, to: `/bgm/${pkg.meta.id}` },
+          { label: 'Setups' },
+        ]}
+      />
+
+      <div>
+        <h1 className="text-2xl font-semibold">Setups</h1>
+        <p className="mt-1 text-sm text-zinc-400">
+          {setups.length} setup{setups.length === 1 ? '' : 's'}.
+        </p>
+      </div>
+
+      <ul className="grid gap-2 sm:grid-cols-2">
+        {setups.map((setup) => (
+          <li key={`${setup.type}#${setup.id}`} className="rounded-lg border border-zinc-800 bg-zinc-900 p-3">
+            <Link
+              to={`/bgm/${pkg.meta.id}/setups/${setup.type}/${setup.id}`}
+              className="font-medium hover:text-zinc-100"
+            >
+              {setup.id}
+            </Link>
+          </li>
+        ))}
+      </ul>
+    </div>
+  );
+}

apps/web/src/pages/SurfacePage.tsx

@@ -0,0 +1,44 @@
+import { useParams } from 'react-router-dom';
+import Breadcrumbs from '../components/Breadcrumbs';
+import PackageMissing from '../components/PackageMissing';
+import { findPackage } from './bgm';
+
+/** Detail view for a single surface within a package. */
+export default function SurfacePage() {
+  const { id, type, surface } = useParams<{ id: string; type: string; surface: string }>();
+  const pkg = findPackage(id);
+  if (!pkg) return <PackageMissing id={id ?? ''} />;
+
+  const found = pkg.surfaces[`${type}#${surface}`];
+
+  return (
+    <div className="space-y-6">
+      <Breadcrumbs
+        crumbs={[
+          { label: 'Board games', to: '/bgm' },
+          { label: pkg.meta.title ?? pkg.meta.id, to: `/bgm/${pkg.meta.id}` },
+          { label: 'Surfaces', to: `/bgm/${pkg.meta.id}/surfaces` },
+          { label: `${type}#${surface}` },
+        ]}
+      />
+
+      {!found ? (
+        <p className="text-sm text-zinc-400">No surface “{type}#{surface}”.</p>
+      ) : (
+        <div className="space-y-4">
+          <div>
+            <h1 className="text-2xl font-semibold">
+              {found.type}#{found.id}
+            </h1>
+            <p className="mt-1 text-sm text-zinc-400">
+              {found.size ? `size ${found.size.join('×')}mm` : ''} · {found.layout.length} routes
+            </p>
+          </div>
+          <pre className="overflow-x-auto rounded-lg border border-zinc-800 bg-zinc-900 p-3 text-xs text-zinc-400">
+            {JSON.stringify(found, null, 2)}
+          </pre>
+        </div>
+      )}
+    </div>
+  );
+}

apps/web/src/pages/SurfacesPage.tsx

@@ -0,0 +1,51 @@
+import { Link, useParams } from 'react-router-dom';
+import Breadcrumbs from '../components/Breadcrumbs';
+import PackageMissing from '../components/PackageMissing';
+import { findPackage } from './bgm';
+
+/**
+ * All surfaces of a package. Each surface links to its
+ * `/bgm/:id/surfaces/:type/:surface` detail page.
+ */
+export default function SurfacesPage() {
+  const { id } = useParams<{ id: string }>();
+  const pkg = findPackage(id);
+  if (!pkg) return <PackageMissing id={id ?? ''} />;
+
+  const surfaces = Object.values(pkg.surfaces);
+
+  return (
+    <div className="space-y-6">
+      <Breadcrumbs
+        crumbs={[
+          { label: 'Board games', to: '/bgm' },
+          { label: pkg.meta.title ?? pkg.meta.id, to: `/bgm/${pkg.meta.id}` },
+          { label: 'Surfaces' },
+        ]}
+      />
+
+      <div>
+        <h1 className="text-2xl font-semibold">Surfaces</h1>
+        <p className="mt-1 text-sm text-zinc-400">
+          {surfaces.length} surface{surfaces.length === 1 ? '' : 's'}.
+        </p>
+      </div>
+
+      <ul className="grid gap-2 sm:grid-cols-2">
+        {surfaces.map((surface) => (
+          <li key={`${surface.type}#${surface.id}`} className="rounded-lg border border-zinc-800 bg-zinc-900 p-3">
+            <Link
+              to={`/bgm/${pkg.meta.id}/surfaces/${surface.type}/${surface.id}`}
+              className="font-medium hover:text-zinc-100"
+            >
+              {surface.id}
+            </Link>
+            <div className="mt-1 text-xs text-zinc-400">
+              {surface.size ? `size ${surface.size.join('×')}mm` : ''} · {surface.layout.length} routes
+            </div>
+          </li>
+        ))}
+      </ul>
+    </div>
+  );
+}

apps/web/src/pages/bgm.ts

@@ -0,0 +1,7 @@
+import packages from 'virtual:bgm/packages';
+import type { SerializedPackage } from '@tts/bgm';
+
+/** Look up a bgm package by id from the `virtual:bgm/packages` module. */
+export function findPackage(id: string | undefined): SerializedPackage | undefined {
+  return packages.find((p) => p.meta.id === id);
+}