refactor: unify inline directives and media fetch

src/media/audio-tags.ts

@@ -1,3 +1,5 @@
+import { parseInlineDirectives } from "../utils/directive-tags.js";
+
 /**
  * Extract audio mode tag from text.
  * Supports [[audio_as_voice]] to send audio as voice bubble instead of file.
@@ -8,24 +10,10 @@ export function parseAudioTag(text?: string): {
   audioAsVoice: boolean;
   hadTag: boolean;
 } {
-  if (!text) return { text: "", audioAsVoice: false, hadTag: false };
-  let cleaned = text;
-  let audioAsVoice = false; // default: audio file (backward compatible)
-  let hadTag = false;
-
-  // [[audio_as_voice]] -> send as voice bubble (opt-in)
-  const voiceMatch = cleaned.match(/\[\[audio_as_voice\]\]/i);
-  if (voiceMatch) {
-    cleaned = cleaned.replace(/\[\[audio_as_voice\]\]/gi, " ");
-    audioAsVoice = true;
-    hadTag = true;
-  }
-
-  // Clean up whitespace
-  cleaned = cleaned
-    .replace(/[ \t]+/g, " ")
-    .replace(/[ \t]*\n[ \t]*/g, "\n")
-    .trim();
-
-  return { text: cleaned, audioAsVoice, hadTag };
+  const result = parseInlineDirectives(text, { stripReplyTags: false });
+  return {
+    text: result.text,
+    audioAsVoice: result.audioAsVoice,
+    hadTag: result.hasAudioTag,
+  };
 }

src/media/audio.ts

@@ -0,0 +1,18 @@
+import { getFileExtension } from "./mime.js";
+
+const VOICE_AUDIO_EXTENSIONS = new Set([".oga", ".ogg", ".opus"]);
+
+export function isVoiceCompatibleAudio(opts: {
+  contentType?: string | null;
+  fileName?: string | null;
+}): boolean {
+  const mime = opts.contentType?.toLowerCase();
+  if (mime && (mime.includes("ogg") || mime.includes("opus"))) {
+    return true;
+  }
+  const fileName = opts.fileName?.trim();
+  if (!fileName) return false;
+  const ext = getFileExtension(fileName);
+  if (!ext) return false;
+  return VOICE_AUDIO_EXTENSIONS.has(ext);
+}