diff --git a/src/index.ts b/src/index.ts
index 3ffdd1c..38f7cc3 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -158,32 +158,35 @@ async function handlePng(
const svgUrl = `https://codewar.dev/api/svg?users=${usernames.join(",")}&range=${range}${selfParam}${themeParam}`;
const browser = await puppeteer.launch(env.BROWSER);
- const page = await browser.newPage();
- await page.setViewport({ width: 1200, height: 628 });
+ try {
+ const page = await browser.newPage();
+ await page.setViewport({ width: 1200, height: 628 });
- // Render SVG centered in OG-standard 1200×628 frame (1.91:1 ratio for X/Twitter)
- const html = `
`;
- await page.setContent(html, { waitUntil: "networkidle0" });
+ // Render SVG centered in OG-standard 1200×628 frame (1.91:1 ratio for X/Twitter)
+ const html = ``;
+ await page.setContent(html, { waitUntil: "networkidle0" });
- // Wait for draw animation to complete
- await new Promise(r => setTimeout(r, 1500));
+ // Wait for draw animation to complete
+ await new Promise(r => setTimeout(r, 1500));
- const pngBuffer = await page.screenshot({
- type: "png",
- clip: { x: 0, y: 0, width: 1200, height: 628 },
- }) as Buffer;
- await browser.close();
+ const pngBuffer = await page.screenshot({
+ type: "png",
+ clip: { x: 0, y: 0, width: 1200, height: 628 },
+ }) as Buffer;
- // Cache PNG for 24 hours
- await env.CACHE.put(pngCacheKey, pngBuffer, { expirationTtl: 86400 });
+ // Cache PNG for 24 hours
+ await env.CACHE.put(pngCacheKey, pngBuffer, { expirationTtl: 86400 });
- return new Response(pngBuffer, {
- headers: {
- "Content-Type": "image/png",
- "Cache-Control": "public, max-age=1800",
- ...corsHeaders(),
- },
- });
+ return new Response(pngBuffer, {
+ headers: {
+ "Content-Type": "image/png",
+ "Cache-Control": "public, max-age=1800",
+ ...corsHeaders(),
+ },
+ });
+ } finally {
+ await browser.close();
+ }
}
async function handleApi(
@@ -219,7 +222,7 @@ async function handleApi(
for (const result of results) {
if (result.status === "fulfilled") {
const filtered = filterByRange(result.value.daily, range);
- const smoothed = applyMovingAverage(filtered, 3);
+ const smoothed = applyMovingAverage(filtered, 3);
datasets.push({
username: result.value.username,
points: smoothed,
diff --git a/src/smoothing.ts b/src/smoothing.ts
index 2249ce4..8307790 100644
--- a/src/smoothing.ts
+++ b/src/smoothing.ts
@@ -30,7 +30,7 @@ export function filterByRange(
}
/**
- * Apply a 7-day moving average to smooth the contribution data.
+ * Apply a centered moving average to smooth the contribution data.
* Returns one smoothed point per day.
*/
export function applyMovingAverage(