refactor: extract recorder domain types and modules

src/recorder/metadata.ts

@@ -0,0 +1,58 @@
+import path from "node:path";
+import type { Client, VoiceChannel } from "discord.js-selfbot-v13";
+import type { SegmentMetadata, SegmentState, UserMetadata } from "../types";
+
+export async function collectUserMetadata(
+  client: Client,
+  userId: string,
+  channel: VoiceChannel,
+): Promise<UserMetadata> {
+  const user =
+    client.users.cache.get(userId) ||
+    (await client.users.fetch(userId).catch(() => null));
+  const member =
+    channel.guild.members.cache.get(userId) ||
+    (await channel.guild.members.fetch(userId).catch(() => null));
+  const username = user?.username ?? "Unknown User";
+  const roles =
+    member?.roles.cache
+      .filter((role) => role.id !== channel.guild.id)
+      .sort((a, b) => b.position - a.position)
+      .map((role) => ({ id: role.id, name: role.name, position: role.position })) ??
+    [];
+
+  return {
+    userId,
+    username,
+    tag: user?.tag ?? "Unknown#0000",
+    displayName: member?.displayName ?? username,
+    avatarUrl:
+      user?.displayAvatarURL({ format: "png", size: 64 }) ??
+      "https://cdn.discordapp.com/embed/avatars/0.png",
+    bot: user?.bot ?? false,
+    roles,
+    highestRole: roles[0] ?? null,
+    joinedTimestamp: member?.joinedTimestamp ?? null,
+  };
+}
+
+export function createSegmentMetadata(
+  user: UserMetadata,
+  segment: SegmentState,
+  sessionId: string,
+  sessionStartTime: number,
+  recordingSegmentMs: number,
+): SegmentMetadata {
+  const endTime = segment.endTime ?? Date.now();
+  return {
+    ...user,
+    sessionId,
+    sessionStartTime,
+    segmentIndex: segment.index,
+    segmentMs: recordingSegmentMs,
+    startTime: segment.startTime,
+    endTime,
+    durationMs: endTime - segment.startTime,
+    filename: path.basename(segment.filename),
+  };
+}