From e5f245ffff7742465efbbed59157201ba71491ec Mon Sep 17 00:00:00 2001
From: Christian Semmler <mail@csemmler.com>
Date: Sat, 11 Apr 2026 12:23:38 -0700
Subject: [PATCH] Add sitemap generation

---
 server/src/index.ts  |  9 ++++++++
 worker/src/index.ts  | 51 ++++++++++++++++++++++++++++++++++++++++++++
 worker/wrangler.toml |  8 +++++++
 3 files changed, 68 insertions(+)

diff --git a/server/src/index.ts b/server/src/index.ts
index 0babff4..2e159a7 100644
--- a/server/src/index.ts
+++ b/server/src/index.ts
@@ -26,6 +26,15 @@ app.all("/api/auth/*", async (c) => {
 	return auth.handler(c.req.raw);
 });
 
+// Public endpoint: all memory event IDs for sitemap generation
+app.get("/api/sitemap", async (c) => {
+	const results = await c.env.DB.prepare(
+		"SELECT event_id, MAX(completed_at) AS completed_at FROM memory_completions GROUP BY event_id ORDER BY completed_at DESC"
+	).all<{ event_id: string; completed_at: number }>();
+
+	return c.json({ entries: results.results });
+});
+
 // Public endpoint: look up a memory completion by eventId (no auth needed)
 app.get("/api/memory/:eventId", async (c) => {
 	const eventId = c.req.param("eventId");
diff --git a/worker/src/index.ts b/worker/src/index.ts
index 6c0df97..4913f8b 100644
--- a/worker/src/index.ts
+++ b/worker/src/index.ts
@@ -162,11 +162,62 @@ async function handleScene(encoded: string, request: Request, env: Env): Promise
 	}
 }
 
+async function handleSitemap(request: Request, env: Env): Promise<Response> {
+	const origin = new URL(request.url).origin;
+
+	try {
+		const apiRes = await fetch(`${env.API_URL}/api/sitemap`);
+		if (!apiRes.ok) {
+			return new Response('Failed to fetch sitemap data', { status: 502 });
+		}
+
+		const data = await apiRes.json() as {
+			entries: Array<{ event_id: string; completed_at: number }>;
+		};
+
+		const urls: string[] = [
+			`  <url>`,
+			`    <loc>${escapeHtml(origin)}/</loc>`,
+			`  </url>`,
+		];
+
+		for (const entry of data.entries) {
+			const lastmod = new Date(entry.completed_at * 1000).toISOString().split('T')[0];
+			urls.push(
+				`  <url>`,
+				`    <loc>${escapeHtml(origin)}/memory/${escapeHtml(entry.event_id)}</loc>`,
+				`    <lastmod>${lastmod}</lastmod>`,
+				`  </url>`,
+			);
+		}
+
+		const xml = [
+			`<?xml version="1.0" encoding="UTF-8"?>`,
+			`<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">`,
+			...urls,
+			`</urlset>`,
+		].join('\n');
+
+		return new Response(xml, {
+			headers: {
+				'content-type': 'application/xml; charset=utf-8',
+				'cache-control': 'public, max-age=3600',
+			},
+		});
+	} catch {
+		return new Response('Failed to generate sitemap', { status: 500 });
+	}
+}
+
 export default {
 	async fetch(request: Request, env: Env): Promise<Response> {
 		const url = new URL(request.url);
 		const path = url.pathname;
 
+		if (path === '/sitemap.xml') {
+			return handleSitemap(request, env);
+		}
+
 		const memoryMatch = path.match(/^\/memory\/([A-Za-z0-9_-]+)$/);
 		if (memoryMatch) {
 			return handleMemory(memoryMatch[1], request, env);
diff --git a/worker/wrangler.toml b/worker/wrangler.toml
index f2b0e88..4d1cb27 100644
--- a/worker/wrangler.toml
+++ b/worker/wrangler.toml
@@ -29,6 +29,10 @@ zone_name = "isle.pizza"
 pattern = "isle.pizza/scene/*"
 zone_name = "isle.pizza"
 
+[[env.production.routes]]
+pattern = "isle.pizza/sitemap.xml"
+zone_name = "isle.pizza"
+
 [[env.production.routes]]
 pattern = "dev.isle.pizza/memory/*"
 zone_name = "isle.pizza"
@@ -36,3 +40,7 @@ zone_name = "isle.pizza"
 [[env.production.routes]]
 pattern = "dev.isle.pizza/scene/*"
 zone_name = "isle.pizza"
+
+[[env.production.routes]]
+pattern = "dev.isle.pizza/sitemap.xml"
+zone_name = "isle.pizza"