perf: sitemap uses revalidate=3600 instead of force-dynamic (reduces DB load)

src/app/sitemap.ts

@@ -3,8 +3,7 @@ import type { PrismaClient } from '@prisma/client'
 import { getAllToolsComplete } from '@/lib/tools/index'
 
 /**
- * Resolve the canonical site URL at runtime (not build time).
- * Fallback chain: SITE_URL → NEXT_PUBLIC_APP_URL → hardcoded prod URL.
+ * Resolve the canonical site URL at runtime.
  */
 function getBaseUrl(): string {
     return (
@@ -14,12 +13,11 @@ function getBaseUrl(): string {
     )
 }
 
-// force-dynamic = always regenerated per request (remove stale revalidate conflict)
-export const dynamic = 'force-dynamic'
+// Revalidate sitemap every hour instead of regenerating on every request
+export const revalidate = 3600
 
 /**
- * Safely obtain a Prisma client via dynamic import so that a missing
- * DATABASE_URL or cold-start failure never crashes the module.
+ * Safely obtain a Prisma client via dynamic import.
  */
 async function getPrisma(): Promise<PrismaClient | null> {
     try {
@@ -31,18 +29,18 @@ async function getPrisma(): Promise<PrismaClient | null> {
     }
 }
 
-// ── tool categories (static list) ─────────────────────────────────────
+// Tool categories (static list)
 const toolCategories = [
     'prompting', 'marketing', 'branding', 'copywriting', 'business',
     'email', 'product', 'hr', 'personal-brand', 'operations',
     'social-media', 'education', 'development', 'creative', 'research',
 ]
 
-// ── main sitemap function ──────────────────────────────────────────────
+// Main sitemap function
 export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
     const BASE_URL = getBaseUrl()
 
-    // ── 1. Static pages ───────────────────────────────────────────────
+    // 1. Static pages
     const staticPages: MetadataRoute.Sitemap = [
         { url: BASE_URL, lastModified: new Date(), changeFrequency: 'daily', priority: 1 },
         { url: `${BASE_URL}/explore`, lastModified: new Date(), changeFrequency: 'daily', priority: 0.9 },
@@ -68,7 +66,7 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
         { url: `${BASE_URL}/terms`, lastModified: new Date(), changeFrequency: 'yearly', priority: 0.3 },
     ]
 
-    // ── 2. Tool category pages ─────────────────────────────────────────
+    // 2. Tool category pages
     const toolCategoryPages: MetadataRoute.Sitemap = toolCategories.map((category) => ({
         url: `${BASE_URL}/tools/${category}`,
         lastModified: new Date(),
@@ -76,7 +74,7 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
         priority: 0.7,
     }))
 
-    // ── 3. Individual tool pages (177+ tools) ──────────────────────────
+    // 3. Individual tool pages (177+ tools)
     let toolPages: MetadataRoute.Sitemap = []
     try {
         const allTools = getAllToolsComplete()
@@ -90,7 +88,6 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
         console.warn('Sitemap: could not load tools list')
     }
 
-    // Always start with pages that don't require the database
     const pages: MetadataRoute.Sitemap = [...staticPages, ...toolCategoryPages, ...toolPages]
 
     const prisma = await getPrisma()
@@ -99,7 +96,7 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
         return pages
     }
 
-    // ── 4. Dynamic DB pages ────────────────────────────────────────────
+    // 4. Dynamic DB pages
     const [promptPages, creatorPages, collectionPages, imagePromptPages, characterPages, workflowPages] =
         await Promise.all([
             fetchPromptPages(prisma, BASE_URL),
@@ -121,7 +118,7 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
     ]
 }
 
-// ── helpers ─────────────────────────────────────────────────────────────
+// Helpers
 
 async function fetchPromptPages(prisma: PrismaClient, baseUrl: string): Promise<MetadataRoute.Sitemap> {
     try {
@@ -129,7 +126,7 @@ async function fetchPromptPages(prisma: PrismaClient, baseUrl: string): Promise<
             where: { visibility: 'public' },
             select: { slug: true, updatedAt: true },
             orderBy: { totalRuns: 'desc' },
-            take: 5000, // Increased from 1000
+            take: 5000,
         })
         return prompts.map((prompt) => ({
             url: `${baseUrl}/p/${prompt.slug}`,
@@ -156,7 +153,6 @@ async function fetchCreatorPages(prisma: PrismaClient, baseUrl: string): Promise
         return creators
             .filter((c) => c.username)
             .map((creator) => ({
-                // ✅ Use username slug (not opaque ID) for SEO
                 url: `${baseUrl}/creator/${creator.username}`,
                 lastModified: creator.updatedAt,
                 changeFrequency: 'weekly' as const,