refactor: unify inbound debounce policy and split gateway/models helpers

src/discord/monitor/message-handler.ts

@@ -1,9 +1,8 @@
 import type { Client } from "@buape/carbon";
-import { hasControlCommand } from "../../auto-reply/command-detection.js";
 import {
-  createInboundDebouncer,
-  resolveInboundDebounceMs,
-} from "../../auto-reply/inbound-debounce.js";
+  createChannelInboundDebouncer,
+  shouldDebounceTextInbound,
+} from "../../channels/inbound-debounce-policy.js";
 import { resolveOpenProviderRuntimeGroupPolicy } from "../../config/runtime-group-policy.js";
 import { danger } from "../../globals.js";
 import type { DiscordMessageEvent, DiscordMessageHandler } from "./listeners.js";
@@ -33,10 +32,12 @@ export function createDiscordMessageHandler(
     params.discordConfig?.ackReactionScope ??
     params.cfg.messages?.ackReactionScope ??
     "group-mentions";
-  const debounceMs = resolveInboundDebounceMs({ cfg: params.cfg, channel: "discord" });
-
-  const debouncer = createInboundDebouncer<{ data: DiscordMessageEvent; client: Client }>({
-    debounceMs,
+  const { debouncer } = createChannelInboundDebouncer<{
+    data: DiscordMessageEvent;
+    client: Client;
+  }>({
+    cfg: params.cfg,
+    channel: "discord",
     buildKey: (entry) => {
       const message = entry.data.message;
       const authorId = entry.data.author?.id;
@@ -57,17 +58,15 @@ export function createDiscordMessageHandler(
       if (!message) {
         return false;
       }
-      if (message.attachments && message.attachments.length > 0) {
-        return false;
-      }
-      if (hasDiscordMessageStickers(message)) {
-        return false;
-      }
       const baseText = resolveDiscordMessageText(message, { includeForwarded: false });
-      if (!baseText.trim()) {
-        return false;
-      }
-      return !hasControlCommand(baseText, params.cfg);
+      return shouldDebounceTextInbound({
+        text: baseText,
+        cfg: params.cfg,
+        hasMedia: Boolean(
+          (message.attachments && message.attachments.length > 0) ||
+          hasDiscordMessageStickers(message),
+        ),
+      });
     },
     onFlush: async (entries) => {
       const last = entries.at(-1);