Load limiting safeguards

dashboard/src/dependencies.md

@@ -3,20 +3,21 @@ title: Dependencies
 ---
 
 ```js
-import {API, POLL} from "./components/config.js";
+import {API, POLL_HEAVY, apiFetch, pollDelay, sleep} from "./components/config.js";
 ```
 
 ```js
 // Fetch workstreams + topics + summary (summary carries dep edges on open_workstreams)
 const depState = (async function*() {
+  let failures = 0;
   while (true) {
     let wsMap = {}, edges = [], ok = false;
     try {
       const [rw, rto, rr, rs] = await Promise.all([
-        fetch(`${API}/workstreams/`),
-        fetch(`${API}/topics/`),
-        fetch(`${API}/repos/`),
-        fetch(`${API}/state/summary`),
+        apiFetch("/workstreams/"),
+        apiFetch("/topics/"),
+        apiFetch("/repos/"),
+        apiFetch("/state/summary", {timeout: 20_000}),
       ]);
       ok = rw.ok && rto.ok && rr.ok && rs.ok;
       if (ok) {
@@ -38,8 +39,9 @@ const depState = (async function*() {
         }
       }
     } catch {}
+    failures = ok ? 0 : failures + 1;
     yield {wsMap, edges, ok, ts: new Date()};
-    await new Promise(res => setTimeout(res, POLL));
+    await sleep(pollDelay({ok, base: POLL_HEAVY, failures}));
   }
 })();
 ```