Feature: Add gist card

api/gist.js

@@ -0,0 +1,80 @@
+import { blacklist } from "../src/common/blacklist.js";
+import { clampValue, CONSTANTS, renderError } from "../src/common/utils.js";
+import { isLocaleAvailable } from "../src/translations.js";
+import { renderGistCard } from "../src/cards/gist-card.js";
+import { fetchGist } from "../src/fetchers/gist-fetcher.js";
+
+export default async (req, res) => {
+  const {
+    username,
+    id,
+    title_color,
+    icon_color,
+    text_color,
+    bg_color,
+    theme,
+    cache_seconds,
+    locale,
+    border_radius,
+    border_color,
+  } = req.query;
+
+  res.setHeader("Content-Type", "image/svg+xml");
+
+  if (blacklist.includes(username)) {
+    return res.send(renderError("Something went wrong"));
+  }
+
+  if (locale && !isLocaleAvailable(locale)) {
+    return res.send(renderError("Something went wrong", "Language not found"));
+  }
+
+  try {
+    const gistData = await fetchGist(username, id);
+
+    let cacheSeconds = clampValue(
+      parseInt(cache_seconds || CONSTANTS.FOUR_HOURS, 10),
+      CONSTANTS.FOUR_HOURS,
+      CONSTANTS.ONE_DAY,
+    );
+    cacheSeconds = process.env.CACHE_SECONDS
+      ? parseInt(process.env.CACHE_SECONDS, 10) || cacheSeconds
+      : cacheSeconds;
+
+    /*
+      if star count & fork count is over 1k then we are kFormating the text
+      and if both are zero we are not showing the stats
+      so we can just make the cache longer, since there is no need to frequent updates
+    */
+    const stars = gistData.starsCount;
+    const forks = gistData.forksCount;
+    const isBothOver1K = stars > 1000 && forks > 1000;
+    const isBothUnder1 = stars < 1 && forks < 1;
+    if (!cache_seconds && (isBothOver1K || isBothUnder1)) {
+      cacheSeconds = CONSTANTS.FOUR_HOURS;
+    }
+
+    res.setHeader(
+      "Cache-Control",
+      `max-age=${
+        cacheSeconds / 2
+      }, s-maxage=${cacheSeconds}, stale-while-revalidate=${CONSTANTS.ONE_DAY}`,
+    );
+
+    return res.send(
+      renderGistCard(gistData, {
+        title_color,
+        icon_color,
+        text_color,
+        bg_color,
+        theme,
+        border_radius,
+        border_color,
+        locale: locale ? locale.toLowerCase() : null,
+      }),
+    );
+  } catch (err) {
+    res.setHeader("Cache-Control", `no-cache, no-store, must-revalidate`); // Don't cache error responses.
+    return res.send(renderError(err.message, err.secondaryMessage));
+  }
+};