First cut

src/lib/site-bundle.ts

@@ -0,0 +1,35 @@
+import {
+  siteContextSchema,
+  eventsFileSchema,
+  sectionFileSchema,
+  type SiteContext,
+  type SectionFile,
+  type EventsFile,
+} from '@dynamic-sites/shared';
+
+export interface SiteBundle {
+  siteContext: SiteContext;
+  sections: SectionFile[];
+  events: EventsFile;
+}
+
+export function parseSiteBundle(
+  siteContextRaw: unknown,
+  eventsRaw: unknown,
+  sectionRaws: unknown[]
+): SiteBundle {
+  const siteContext = siteContextSchema.parse(siteContextRaw);
+  const events = eventsFileSchema.parse(eventsRaw);
+
+  const sections: SectionFile[] = [];
+  for (const raw of sectionRaws) {
+    const result = sectionFileSchema.safeParse(raw);
+    if (result.success && result.data.visible) {
+      sections.push(result.data);
+    }
+  }
+  // Sort by order, then id as tiebreaker
+  sections.sort((a, b) => a.order - b.order || a.id.localeCompare(b.id));
+
+  return { siteContext, sections, events };
+}

src/lib/site-data.ts

@@ -0,0 +1,39 @@
+import fs from 'node:fs';
+import path from 'node:path';
+import { parseSiteBundle, type SiteBundle } from './site-bundle.ts';
+
+const REPO_ROOT = process.env.REPO_ROOT || '.';
+const TTL = parseInt(process.env.SITE_DATA_TTL_MS || '2000', 10);
+
+let cached: { data: SiteBundle; loadedAt: number } | null = null;
+
+export function loadSiteData(): SiteBundle {
+  const now = Date.now();
+  if (cached && now - cached.loadedAt < TTL) {
+    return cached.data;
+  }
+
+  const siteContextRaw = JSON.parse(
+    fs.readFileSync(path.join(REPO_ROOT, 'site-context.json'), 'utf-8')
+  );
+
+  const eventsRaw = JSON.parse(
+    fs.readFileSync(path.join(REPO_ROOT, 'content/events.json'), 'utf-8')
+  );
+
+  const sectionsDir = path.join(REPO_ROOT, 'content/sections');
+  const sectionRaws: unknown[] = [];
+  if (fs.existsSync(sectionsDir)) {
+    for (const file of fs.readdirSync(sectionsDir).filter(f => f.endsWith('.json'))) {
+      try {
+        sectionRaws.push(JSON.parse(fs.readFileSync(path.join(sectionsDir, file), 'utf-8')));
+      } catch {
+        // skip invalid files
+      }
+    }
+  }
+
+  const data = parseSiteBundle(siteContextRaw, eventsRaw, sectionRaws);
+  cached = { data, loadedAt: now };
+  return data;
+}