Gateway: multi-select answers and a summary endpoint for the complication

gateway/src/views.ts

@@ -4,7 +4,7 @@
 // the thread's `updatedAt` moves.
 
 import { threadPhase, type Phase } from "./awareness.ts";
-import type { Feed, FeedItem, HostSummary, Message, PendingRequest, ThreadDetail } from "./contract.ts";
+import type { Feed, FeedItem, HostSummary, Message, PendingRequest, Summary, ThreadDetail } from "./contract.ts";
 import type { T3Host } from "./t3/host.ts";
 import {
   isApprovalRequest,
@@ -80,6 +80,7 @@ function pendingRequest(thread: ThreadShell, turnItems: BoundedThread["projectio
         question: question.question,
         options: question.options.map((option) => ({ label: option.label, value: option.value ?? option.label })),
         allowCustomAnswer: question.allowCustomAnswer ?? false,
+        multiSelect: question.multiSelect ?? false,
       })),
     };
   }
@@ -155,6 +156,30 @@ function feedItem(host: T3Host, thread: ThreadShell, phase: Phase, summary: Thre
   };
 }
 
+/** Counts for the complication, from thread shells alone. */
+export function buildSummary(hosts: T3Host[]): Summary {
+  let needsYou = 0;
+  let working = 0;
+  let next: { host: T3Host; thread: ThreadShell } | null = null;
+  for (const host of hosts) {
+    for (const thread of host.threads.values()) {
+      if (thread.archivedAt || thread.deletedAt) continue;
+      const phase = threadPhase(thread);
+      if (phase === "starting" || phase === "running") working++;
+      if (phase !== "waiting_for_approval" && phase !== "waiting_for_input") continue;
+      needsYou++;
+      const waitingSince = thread.pendingRuntimeRequest?.createdAt ?? "";
+      if (!next || waitingSince < (next.thread.pendingRuntimeRequest?.createdAt ?? "")) next = { host, thread };
+    }
+  }
+  return {
+    needsYou,
+    working,
+    next: next && { hostId: next.host.id, threadId: next.thread.id, title: next.thread.title, hostLabel: next.host.label },
+    hostsOffline: hosts.filter((host) => host.status !== "online").length,
+  };
+}
+
 /** Builds the feed across every host, waiting briefly for summaries it has not read yet. */
 export async function buildFeed(hosts: T3Host[], cache: SummaryCache, now = Date.now()): Promise<Feed> {
   const candidates: Array<{ host: T3Host; thread: ThreadShell; phase: Phase }> = [];