Add och!groups command

lib/config.py

@@ -4,6 +4,9 @@ from typing import Optional, Any
 
 CONFIG = 'data/config.json'
 config: dict = {
+    'groups-category': 'groups',
+    'groups-archive-category': 'archive',
+    'groups-role-prefix': 'group_',
     'inf19x-insiders-enable': False,
     'loeh-enable': False,
     'och-timeout': 10,
@@ -13,6 +16,18 @@ config: dict = {
     'last-och-time': 0,
 }
 config_meta: dict = {
+    'groups-category': (
+        True,
+        'Set the channel category to use for groups'
+    ),
+    'groups-archive-category': (
+        True,
+        'Sets the archive channel category for groups'
+    ),
+    'groups-role-prefix': (
+        True,
+        'Prefix to use for group roles'
+    ),
     'inf19x-insiders-enable': (
         True,
         'Enables university insider jokes of INF19X'

lib/utils.py

@@ -1,8 +1,17 @@
 from collections import AsyncIterable
-from typing import Callable, AsyncGenerator
+from typing import Callable, AsyncGenerator, Optional
+import discord
 
 
 async def async_filter(fun: Callable, iterable: AsyncIterable) -> AsyncGenerator:
     async for val in iterable:
         if fun(val):
             yield val
+
+
+def find_category(guild: discord.Guild, group: str) -> Optional[discord.CategoryChannel]:
+    group = group.lower()
+    for cat in guild.categories:
+        if cat.name.lower() == group:
+            return cat
+    return None