chore: Move to Typescript (#2783)

This PR moves the entire project to Typescript. Due to the ~1000 ignores this will lead to a messy codebase for a while, but the churn is worth it – all of those ignore comments are places that were never type-safe previously.

closes #1282

server/utils/avatars.ts

@@ -0,0 +1,36 @@
+import crypto from "crypto";
+import fetch from "fetch-with-proxy";
+
+export const DEFAULT_AVATAR_HOST = "https://tiley.herokuapp.com";
+
+export async function generateAvatarUrl({
+  id,
+  domain,
+  name = "Unknown",
+}: {
+  id: string;
+  domain?: string;
+  name?: string;
+}) {
+  // attempt to get logo from Clearbit API. If one doesn't exist then
+  // fall back to using tiley to generate a placeholder logo
+  const hash = crypto.createHash("sha256");
+  hash.update(id);
+  const hashedId = hash.digest("hex");
+  let cbResponse, cbUrl;
+
+  if (domain) {
+    cbUrl = `https://logo.clearbit.com/${domain}`;
+
+    try {
+      cbResponse = await fetch(cbUrl);
+    } catch (err) {
+      // okay
+    }
+  }
+
+  const tileyUrl = `${DEFAULT_AVATAR_HOST}/avatar/${hashedId}/${encodeURIComponent(
+    name[0]
+  )}.png`;
+  return cbUrl && cbResponse && cbResponse.status === 200 ? cbUrl : tileyUrl;
+}