Load limiting safeguards

dashboard/src/decisions.md

@@ -3,18 +3,19 @@ title: Decisions
 ---
 
 ```js
-import {API, POLL} from "./components/config.js";
+import {API, POLL_HEAVY, apiFetch, pollDelay, sleep} from "./components/config.js";
 ```
 
 ```js
 // Fetch decisions + topics (for domain context) in parallel
 const decState = (async function*() {
+  let failures = 0;
   while (true) {
     let data = [], ok = false;
     try {
       const [rd, rt] = await Promise.all([
-        fetch(`${API}/decisions/?limit=500`),
-        fetch(`${API}/topics/`),
+        apiFetch("/decisions/?limit=500"),
+        apiFetch("/topics/"),
       ]);
       ok = rd.ok && rt.ok;
       if (ok) {
@@ -43,8 +44,9 @@ const decState = (async function*() {
           });
       }
     } catch {}
+    failures = ok ? 0 : failures + 1;
     yield {data, ok, ts: new Date()};
-    await new Promise(res => setTimeout(res, POLL));
+    await sleep(pollDelay({ok, base: POLL_HEAVY, failures}));
   }
 })();
 ```