adding func for finding channels with too many messages

chan-like/channer.py

@@ -12,33 +12,46 @@ CONFIG = {
     'port': int(getenv('DATABASE_PORT')),
 }
 
-def add_message_limit(limit: int):
+def purge_clamped_messages(cursor, channels: list, limit: int):
+    pass
+
+def message_limit(limit: int):
     count_query = '''
         SELECT channel_name, COUNT(time) FROM messages
         GROUP BY channel_name;
     '''
     conn = sql.connect(**CONFIG)
-    cursor = conn.cursor()
+    cursor = conn.cursor(prepared=True)
+
+    cursor.execute(count_query,())
+    # figure out which channels need pruning
+    for i in cursor:
+        print(i)
+
+    # collect the channels that require filtering
+    channels = list(filter((None).__ne__, [limit if chan[1] > limit else None for chan in cursor]))
+    if len(channels) > 0:
+        purge_clamped_messages(cursor, channels, limit)
+    else:
+        print(f'[ {__file__} ] : No messages to remove from clamped set')
+
+    cursor.close()
+    conn.close()
 
 
-def add_message_timeout():
-    pass
 
-def rm_message_limit():
-    pass
-
-def rm_message_timeout():
+def message_timeout():
     pass
 
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(
-        description='An optional microservice for freechat to make the messaging system more transient'
+        description='A script which can be setup as a chronjob to make messaging' 
+        ' similar to how image boards clean up threads'
     )
 
     parser.add_argument('-t', '--time-out', type=float, required=False)
     parser.add_argument('-m', '--message-limit',  type=int, required=False)
-    parser.add_argument('-r', '--remove' type=string, required=False, choices=['timeout', 'limit'])
 
 
     args = vars(parser.parse_args())
@@ -47,12 +60,6 @@ if __name__ == '__main__':
     timeout = args['time_out']
 
     # timeout is given in days 30 => 30 day time limit
-    if limit: add_message_limit(limit)
-    if timeout: add_message_timeout(timeout)
+    if limit: message_limit(limit)
+    if timeout: message_timeout(timeout)
 
-    if args['remove']:
-        remove_opts = {
-            'timeout': rm_message_timeout,
-            'limit': rm_message_limit,
-        }
-        remove_opts[f]()