refactor: reuse channel config resolver in matrix extension

Co-authored-by: thewilloftheshadow <thewilloftheshadow@users.noreply.github.com>

extensions/matrix/src/matrix/monitor/rooms.ts

@@ -1,4 +1,8 @@
 import type { MatrixConfig, MatrixRoomConfig } from "../../types.js";
+import {
+  buildChannelKeyCandidates,
+  resolveChannelEntryMatch,
+} from "../../../../../src/channels/plugins/channel-config.js";
 
 export type MatrixRoomConfigResolved = {
   allowed: boolean;
@@ -15,22 +19,18 @@ export function resolveMatrixRoomConfig(params: {
   const rooms = params.rooms ?? {};
   const keys = Object.keys(rooms);
   const allowlistConfigured = keys.length > 0;
-  const candidates = [
+  const candidates = buildChannelKeyCandidates(
     params.roomId,
     `room:${params.roomId}`,
     ...params.aliases,
     params.name ?? "",
-  ].filter(Boolean);
-  let matched: MatrixRoomConfigResolved["config"] | undefined;
-  for (const candidate of candidates) {
-    if (rooms[candidate]) {
-      matched = rooms[candidate];
-      break;
-    }
-  }
-  if (!matched && rooms["*"]) {
-    matched = rooms["*"];
-  }
-  const allowed = matched ? matched.enabled !== false && matched.allow !== false : false;
-  return { allowed, allowlistConfigured, config: matched };
+  );
+  const { entry: matched, wildcardEntry } = resolveChannelEntryMatch({
+    entries: rooms,
+    keys: candidates,
+    wildcardKey: "*",
+  });
+  const resolved = matched ?? wildcardEntry;
+  const allowed = resolved ? resolved.enabled !== false && resolved.allow !== false : false;
+  return { allowed, allowlistConfigured, config: resolved };
 }