feat: get footer from cdn (#47174)

Co-authored-by: ahmad abdolsaheb <ahmad.abdolsaheb@gmail.com>
Co-authored-by: scissorsneedfoodtoo <scissorsneedfoodtoo@gmail.com>

tools/scripts/build/download-trending.ts

@@ -0,0 +1,47 @@
+import { writeFileSync } from 'fs';
+import fetch from 'node-fetch';
+import yaml from 'js-yaml';
+import { trendingSchemaValidator } from '../../../client/i18n/schema/trendingSchema';
+
+import envData from '../../../config/env.json';
+const { clientLocale } = envData;
+
+const createCdnUrl = (lang: string) =>
+  `https://cdn.freecodecamp.org/universal/trending/${lang}.yaml`;
+
+const download = async () => {
+  const url = createCdnUrl(clientLocale);
+  const res = await fetch(url);
+  if (!res.ok) {
+    throw new Error(
+      `
+      ----------------------------------------------------
+      Error: The CDN is missing the trending YAML file.
+      ----------------------------------------------------
+      Unable to fetch the ${clientLocale} footer: ${res.statusText}
+      `
+    );
+  }
+
+  const data = await res.text();
+  const trendingJSON = JSON.stringify(yaml.load(data));
+  const trendingLocation = `./client/i18n/locales/${clientLocale}/trending.json`;
+  writeFileSync(trendingLocation, trendingJSON);
+
+  const trendingObject = JSON.parse(trendingJSON) as Record<string, string>;
+  const validationError =
+    (trendingSchemaValidator(trendingObject).error as Error) || null;
+
+  if (validationError) {
+    throw new Error(
+      `
+    ----------------------------------------------------
+    Error: The trending JSON is invalid.
+    ----------------------------------------------------
+    Unable to validate the ${clientLocale} trending JSON schema: ${validationError.message}
+    `
+    );
+  }
+};
+
+void download();

tools/scripts/build/package.json

@@ -19,8 +19,10 @@
   "author": "freeCodeCamp <team@freecodecamp.org>",
   "main": "none",
   "devDependencies": {
+    "@types/js-yaml": "4.0.5",
     "debug": "4.3.2",
     "dotenv": "16.0.3",
+    "js-yaml": "4.1.0",
     "readdirp": "3.6.0"
   }
 }