Print error when fetching users/usergroups fail

2 files changed, 13 insertions, 0 deletions

diff --git a/slack/log.py b/slack/log.py
index e33b744..b132c0e 100644
--- a/slack/log.py
+++ b/slack/log.py
@@ -1,11 +1,15 @@
 from __future__ import annotations
 
 from enum import IntEnum
+from typing import Set
 
 import weechat
 
+from slack.error import format_exception
 from slack.shared import shared
 
+printed_exceptions: Set[BaseException] = set()
+
 
 class LogLevel(IntEnum):
     TRACE = 1
@@ -21,6 +25,12 @@ def print_error(message: str):
     weechat.prnt("", f"{weechat.prefix('error')}{shared.SCRIPT_NAME}: {message}")
 
 
+def print_exception_once(e: BaseException):
+    if e not in printed_exceptions:
+        print_error(format_exception(e))
+        printed_exceptions.add(e)
+
+
 def log(level: LogLevel, message: str):
     if level >= LogLevel.INFO:
         prefix = weechat.prefix("error") if level >= LogLevel.ERROR else "\t"
diff --git a/slack/slack_message.py b/slack/slack_message.py
index dbae819..cfae6cc 100644
--- a/slack/slack_message.py
+++ b/slack/slack_message.py
@@ -3,6 +3,7 @@ from __future__ import annotations
 import re
 from typing import TYPE_CHECKING, List, Match, Optional
 
+from slack.log import print_exception_once
 from slack.shared import shared
 from slack.slack_user import SlackUser, SlackUsergroup, format_bot_nick
 from slack.task import gather
@@ -91,6 +92,7 @@ class SlackMessage:
                     shared.config.color.user_mention_color.value, "@" + user.nick()
                 )
             else:
+                print_exception_once(user)
                 return f"@{user_id}"
 
         def unfurl_usergroup(usergroup_id: str):
@@ -101,6 +103,7 @@ class SlackMessage:
                     "@" + usergroup.handle(),
                 )
             else:
+                print_exception_once(usergroup)
                 return f"@{usergroup_id}"
 
         return re_mention.sub(unfurl_ref, message)