[PATCH v3 03/17] fix: utils: add a substr for the patch media caption

[Muhammad Rizki <kiizuha@gnuweeb.org>]

Add a substr caption for the patch email to avoid media caption too
long.

Regarding this commit bb8855bf5e, it's forget to add a substr caption
method, which is it will get media caption too long error for both
Discord and Telegram bot.

Signed-off-by: Muhammad Rizki <kiizuha@gnuweeb.org>
---
 daemon/atom/utils.py | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/daemon/atom/utils.py b/daemon/atom/utils.py
index 8a6c1a8..0ba649a 100644
--- a/daemon/atom/utils.py
+++ b/daemon/atom/utils.py
@@ -246,9 +246,20 @@ def prepare_patch(mail: Message, text, url, platform: Platform):
 
 			f.write(write_payload)
 
-	caption = "#patch #ml"
+	caption = f"#patch #ml\n{cap}"
 	if platform is Platform.TELEGRAM:
-		caption += fix_utf8_char("\n" + cap, True)
+		# Telegram media caption is limit to 1024
+		# set limit to 1021, because we will add "..."
+		if len(caption) >= 1024:
+			caption = caption[:1021] + "..."
+
+		fixed = fix_utf8_char(caption, html_escape=True)
+		return tmp, file, fixed, url
+
+	# Discord attachment caption limit about 1998 or 2000
+	# set limit to 1995, because we will add "..."
+	if len(caption) >= 1998:
+		caption = caption[:1995] + "..."
 
 	return tmp, file, caption, url
 
-- 
Muhammad Rizki