feat(web): redirect agent page to latest version

Author: brandonkachen

web/src/app/publishers/[id]/agents/[agentId]/page.tsx

@@ -0,0 +1,101 @@
+import { env } from '@codebuff/common/env'
+import db from '@codebuff/internal/db'
+import * as schema from '@codebuff/internal/db/schema'
+import { and, desc, eq } from 'drizzle-orm'
+import { notFound, redirect } from 'next/navigation'
+
+interface AgentRedirectPageProps {
+  params: {
+    id: string // publisher id
+    agentId: string
+  }
+}
+
+export async function generateMetadata({ params }: AgentRedirectPageProps) {
+  const agent = await db
+    .select({
+      data: schema.agentConfig.data,
+      version: schema.agentConfig.version,
+    })
+    .from(schema.agentConfig)
+    .where(
+      and(
+        eq(schema.agentConfig.publisher_id, params.id),
+        eq(schema.agentConfig.id, params.agentId),
+      ),
+    )
+    .orderBy(desc(schema.agentConfig.created_at))
+    .limit(1)
+
+  if (agent.length === 0) {
+    return {
+      title: 'Agent Not Found',
+    }
+  }
+
+  const agentData =
+    typeof agent[0].data === 'string'
+      ? JSON.parse(agent[0].data)
+      : agent[0].data
+  const agentName = agentData.name || params.agentId
+
+  // Fetch publisher for OG image
+  const pub = await db
+    .select()
+    .from(schema.publisher)
+    .where(eq(schema.publisher.id, params.id))
+    .limit(1)
+
+  const title = `${agentName} - Agent Details`
+  const description =
+    agentData.description || `View details for ${agentName} agent`
+  const ogImages = (pub?.[0]?.avatar_url ? [pub[0].avatar_url] : []) as string[]
+
+  // Canonical URL points to the versioned page to avoid duplicate content
+  const canonicalUrl = `${env.NEXT_PUBLIC_CODEBUFF_APP_URL}/publishers/${params.id}/agents/${params.agentId}/${agent[0].version}`
+
+  return {
+    title,
+    description,
+    alternates: {
+      canonical: canonicalUrl,
+    },
+    openGraph: {
+      title,
+      description,
+      type: 'article',
+      images: ogImages,
+    },
+  }
+}
+
+/**
+ * This page redirects to the latest version of an agent.
+ * URL: /publishers/{publisherId}/agents/{agentId}
+ * Redirects to: /publishers/{publisherId}/agents/{agentId}/{latestVersion}
+ */
+const AgentRedirectPage = async ({ params }: AgentRedirectPageProps) => {
+  // Get the latest version of this agent (most recent by created_at)
+  const latestVersion = await db
+    .select({
+      version: schema.agentConfig.version,
+    })
+    .from(schema.agentConfig)
+    .where(
+      and(
+        eq(schema.agentConfig.publisher_id, params.id),
+        eq(schema.agentConfig.id, params.agentId),
+      ),
+    )
+    .orderBy(desc(schema.agentConfig.created_at))
+    .limit(1)
+
+  if (latestVersion.length === 0) {
+    notFound()
+  }
+
+  // Redirect to the latest version
+  redirect(`/publishers/${params.id}/agents/${params.agentId}/${latestVersion[0].version}`)
+}
+
+export default AgentRedirectPage