From aae5926db933ed57f1be6fe85051160a5c051326 Mon Sep 17 00:00:00 2001
From: Manuel Hettich <17690367+ManuelHettich@users.noreply.github.com>
Date: Tue, 6 Jan 2026 08:45:07 +0000
Subject: [PATCH] fix(telegram): notify user when media exceeds size limit
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When a file exceeds mediaMaxMb, send a friendly error message
instead of silently dropping the upload.

---
🤖 Authored by Jarvis (AI assistant)
---
 src/telegram/bot.ts | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/src/telegram/bot.ts b/src/telegram/bot.ts
index 79b14da48..f6b7317f5 100644
--- a/src/telegram/bot.ts
+++ b/src/telegram/bot.ts
@@ -483,12 +483,30 @@ export function createTelegramBot(opts: TelegramBotOptions) {
         return;
       }
 
-      const media = await resolveMedia(
-        ctx,
-        mediaMaxBytes,
-        opts.token,
-        opts.proxyFetch,
-      );
+      let media: Awaited<ReturnType<typeof resolveMedia>> = null;
+      try {
+        media = await resolveMedia(
+          ctx,
+          mediaMaxBytes,
+          opts.token,
+          opts.proxyFetch,
+        );
+      } catch (mediaErr) {
+        const errMsg = String(mediaErr);
+        if (errMsg.includes("exceeds") && errMsg.includes("MB limit")) {
+          const limitMb = Math.round(mediaMaxBytes / (1024 * 1024));
+          await bot.api
+            .sendMessage(
+              chatId,
+              `⚠️ File too large. Maximum size is ${limitMb}MB.`,
+              { reply_to_message_id: msg.message_id },
+            )
+            .catch(() => {});
+          logger.warn({ chatId, error: errMsg }, "media exceeds size limit");
+          return;
+        }
+        throw mediaErr;
+      }
       const allMedia = media
         ? [{ path: media.path, contentType: media.contentType }]
         : [];