fix: newline chunking across channels

src/telegram/bot/delivery.ts

@@ -4,6 +4,7 @@ import {
   markdownToTelegramHtml,
   renderTelegramHtmlText,
 } from "../format.js";
+import { chunkMarkdownTextWithMode, type ChunkMode } from "../../auto-reply/chunk.js";
 import { splitTelegramCaption } from "../caption.js";
 import type { ReplyPayload } from "../../auto-reply/types.js";
 import type { ReplyToMode } from "../../config/config.js";
@@ -32,12 +33,33 @@ export async function deliverReplies(params: {
   textLimit: number;
   messageThreadId?: number;
   tableMode?: MarkdownTableMode;
+  chunkMode?: ChunkMode;
   /** Callback invoked before sending a voice message to switch typing indicator. */
   onVoiceRecording?: () => Promise<void> | void;
 }) {
   const { replies, chatId, runtime, bot, replyToMode, textLimit, messageThreadId } = params;
+  const chunkMode = params.chunkMode ?? "length";
   const threadParams = buildTelegramThreadParams(messageThreadId);
   let hasReplied = false;
+  const chunkText = (markdown: string) => {
+    const markdownChunks =
+      chunkMode === "newline"
+        ? chunkMarkdownTextWithMode(markdown, textLimit, chunkMode)
+        : [markdown];
+    const chunks: ReturnType<typeof markdownToTelegramChunks> = [];
+    for (const chunk of markdownChunks) {
+      const nested = markdownToTelegramChunks(chunk, textLimit, { tableMode: params.tableMode });
+      if (!nested.length && chunk) {
+        chunks.push({
+          html: markdownToTelegramHtml(chunk, { tableMode: params.tableMode }),
+          text: chunk,
+        });
+        continue;
+      }
+      chunks.push(...nested);
+    }
+    return chunks;
+  };
   for (const reply of replies) {
     const hasMedia = Boolean(reply?.mediaUrl) || (reply?.mediaUrls?.length ?? 0) > 0;
     if (!reply?.text && !hasMedia) {
@@ -55,9 +77,7 @@ export async function deliverReplies(params: {
         ? [reply.mediaUrl]
         : [];
     if (mediaList.length === 0) {
-      const chunks = markdownToTelegramChunks(reply.text || "", textLimit, {
-        tableMode: params.tableMode,
-      });
+      const chunks = chunkText(reply.text || "");
       for (const chunk of chunks) {
         await sendTelegramText(bot, chatId, chunk.html, runtime, {
           replyToMessageId:
@@ -151,9 +171,7 @@ export async function deliverReplies(params: {
       // Send deferred follow-up text right after the first media item.
       // Chunk it in case it's extremely long (same logic as text-only replies).
       if (pendingFollowUpText && isFirstMedia) {
-        const chunks = markdownToTelegramChunks(pendingFollowUpText, textLimit, {
-          tableMode: params.tableMode,
-        });
+        const chunks = chunkText(pendingFollowUpText);
         for (const chunk of chunks) {
           const replyToMessageIdFollowup =
             replyToId && (replyToMode === "all" || !hasReplied) ? replyToId : undefined;