refactor(src): split oversized modules

src/auto-reply/reply/queue/state.ts

@@ -0,0 +1,65 @@
+import type {
+  FollowupRun,
+  QueueDropPolicy,
+  QueueMode,
+  QueueSettings,
+} from "./types.js";
+
+export type FollowupQueueState = {
+  items: FollowupRun[];
+  draining: boolean;
+  lastEnqueuedAt: number;
+  mode: QueueMode;
+  debounceMs: number;
+  cap: number;
+  dropPolicy: QueueDropPolicy;
+  droppedCount: number;
+  summaryLines: string[];
+  lastRun?: FollowupRun["run"];
+};
+
+export const DEFAULT_QUEUE_DEBOUNCE_MS = 1000;
+export const DEFAULT_QUEUE_CAP = 20;
+export const DEFAULT_QUEUE_DROP: QueueDropPolicy = "summarize";
+
+export const FOLLOWUP_QUEUES = new Map<string, FollowupQueueState>();
+
+export function getFollowupQueue(
+  key: string,
+  settings: QueueSettings,
+): FollowupQueueState {
+  const existing = FOLLOWUP_QUEUES.get(key);
+  if (existing) {
+    existing.mode = settings.mode;
+    existing.debounceMs =
+      typeof settings.debounceMs === "number"
+        ? Math.max(0, settings.debounceMs)
+        : existing.debounceMs;
+    existing.cap =
+      typeof settings.cap === "number" && settings.cap > 0
+        ? Math.floor(settings.cap)
+        : existing.cap;
+    existing.dropPolicy = settings.dropPolicy ?? existing.dropPolicy;
+    return existing;
+  }
+
+  const created: FollowupQueueState = {
+    items: [],
+    draining: false,
+    lastEnqueuedAt: 0,
+    mode: settings.mode,
+    debounceMs:
+      typeof settings.debounceMs === "number"
+        ? Math.max(0, settings.debounceMs)
+        : DEFAULT_QUEUE_DEBOUNCE_MS,
+    cap:
+      typeof settings.cap === "number" && settings.cap > 0
+        ? Math.floor(settings.cap)
+        : DEFAULT_QUEUE_CAP,
+    dropPolicy: settings.dropPolicy ?? DEFAULT_QUEUE_DROP,
+    droppedCount: 0,
+    summaryLines: [],
+  };
+  FOLLOWUP_QUEUES.set(key, created);
+  return created;
+}