1 files changed, 36 insertions, 8 deletions
diff --git a/bot/utils/moderation.py b/bot/utils/moderation.py
index 9ea2db07c..7860f14a1 100644
--- a/bot/utils/moderation.py
+++ b/bot/utils/moderation.py
@@ -1,11 +1,11 @@
 import logging
 from datetime import datetime
-from typing import Union
+from typing import Optional, Union
 
-from aiohttp import ClientError
 from discord import Member, Object, User
 from discord.ext.commands import Context
 
+from bot.api import ResponseCodeError
 from bot.constants import Keys
 
 log = logging.getLogger(__name__)
@@ -21,8 +21,8 @@ async def post_infraction(
     expires_at: datetime = None,
     hidden: bool = False,
     active: bool = True,
-) -> Union[dict, None]:
-    """Post infraction to the API."""
+) -> Optional[dict]:
+    """Posts an infraction to the API."""
     payload = {
         "actor": ctx.message.author.id,
         "hidden": hidden,
@@ -36,9 +36,37 @@ async def post_infraction(
 
     try:
         response = await ctx.bot.api_client.post('bot/infractions', json=payload)
-    except ClientError:
-        log.exception("There was an error adding an infraction.")
-        await ctx.send(":x: There was an error adding the infraction.")
-        return
+    except ResponseCodeError as exp:
+        if exp.status == 400 and 'user' in exp.response_json:
+            log.info(
+                f"{ctx.author} tried to add a {type} infraction to `{user.id}`, "
+                "but that user id was not found in the database."
+            )
+            await ctx.send(f":x: Cannot add infraction, the specified user is not known to the database.")
+            return
+        else:
+            log.exception("An unexpected ResponseCodeError occurred while adding an infraction:")
+            await ctx.send(":x: There was an error adding the infraction.")
+            return
 
     return response
+
+
+async def already_has_active_infraction(ctx: Context, user: Union[Member, Object, User], type: str) -> bool:
+    """Checks if a user already has an active infraction of the given type."""
+    active_infractions = await ctx.bot.api_client.get(
+        'bot/infractions',
+        params={
+            'active': 'true',
+            'type': type,
+            'user__id': str(user.id)
+        }
+    )
+    if active_infractions:
+        await ctx.send(
+            f":x: According to my records, this user already has a {type} infraction. "
+            f"See infraction **#{active_infractions[0]['id']}**."
+        )
+        return True
+    else:
+        return False