Function deleteInSavedMessages

dme/dme.ts:611–651

* 收藏夹直接按数量删除（不做媒体编辑）

(
  client: TelegramClient,
  chatEntity: any,
  userRequestedCount: number
)

  const targetCount =
    userRequestedCount === CONFIG.UNLIMITED_REQUEST_COUNT ? Infinity : userRequestedCount;
  let offsetId = 0;
  let collected = 0;
  let deleted = 0;
  const batchLimit = 100;

  while (collected < targetCount) {
    const limit =
      targetCount === Infinity ? batchLimit : Math.min(batchLimit, targetCount - collected);
    const history = await client.invoke(
      new Api.messages.GetHistory({
        peer: chatEntity,
        offsetId,
        offsetDate: 0,
        addOffset: 0,
        limit,
        maxId: 0,
        minId: 0,
        hash: 0 as any,
      })
    );
    const msgs: any[] = (history as any).messages || [];
    const justMsgs = msgs.filter((m: any) => m.className === "Message");
    if (justMsgs.length === 0) break;

    offsetId = justMsgs[justMsgs.length - 1].id;
    const ids = justMsgs.map((m: any) => m.id);
    const result = await deleteMessagesUniversal(client, chatEntity, ids);
    deleted += result;
    collected += ids.length;
    await sleep(CONFIG.DELAYS.BATCH);
  }

  return { processedCount: deleted, actualCount: collected, editedCount: 0 };
}

/**
 * 检测群组是否禁止转发和复制（受限群组）
 */
async function isRestrictedGroup(client: TelegramClient, chatEntity: any): Promise<boolean> {
  try {
    // 获取聊天信息以检查限制
    if (chatEntity.className === "Channel") {
      // 对于频道/超级群，检查noforwards属性
      return (chatEntity as any).noforwards === true;