Refactor duel request handling and add accept duel functionality

bot/db_utils.py

@@ -116,14 +116,13 @@ def insert_duel_request(username: str, target: str, duel_type: str) -> None:
     player_1_1d = get_player(username)
     player_2_id = get_player(target)
     
-    # sets the creation date
-    created_at = datetime.now().isoformat()
 
     competitive = duel_type
 
     # insert the duel request
     CURSOR.execute(
-        'INSERT INTO duels (player_1_id, player_2_id, attacker_id,last_round_dt,competitive) VALUES (?, ?, ?, ?)',
+        'INSERT INTO duel_requests (player_1_id, player_2_id, competitive) VALUES (?, ?, ?)',
+        (player_1_1d, player_2_id, competitive)
     )
 
 def insert_player(username: str) -> int:

bot/response.py

@@ -216,7 +216,32 @@ def duel_request(author: str, args: list[str]) -> BotResponse:
         'attachment_urls': None
     }
 
+def accept_duel(author: str, args: list[str]) -> BotResponse:
+    '''Accepts a duel request from another user.'''
+    if len(args) == 0:
+        return {
+            'message': f'{author} Please specify a user to accept the duel from.',
+            'attachment_urls': None
+        }
 
+    target = args[0]
+    if not db.get_player(target):
+        return {
+            'message': f'{author} User {target} does not exist or \
+            has not signed up, please sign up before accepting a duel.',
+            'attachment_urls': None
+        }
+
+    if db.accept_duel_request(author, target):
+        return {
+            'message': f'{author} You have accepted the duel request from {target}.',
+            'attachment_urls': None
+        }
+    else:
+        return {
+            'message': f'{author} No duel request found from {target}.',
+            'attachment_urls': None
+        }
 
 def delete_account(author: str) -> BotResponse:
     return {