Add duel request functionality and update duel table schema

bot/db_utils.py

@@ -18,6 +18,7 @@ from random import choices
 import sqlite3
 import config
 from custom_types import Card
+from datetime import datetime
 
 DB_PATH = config.DB_PATH
 CONNECTION: sqlite3.Connection
@@ -100,6 +101,28 @@ def get_player(username: str) -> int:
         return int(player[0])
     return 0
 
+def insert_duel_request(username: str, target: str, duel_type: str) -> None:
+    '''Inserts a duel request into the database.
+    
+    Args:
+        username (str): The username of the player who initiated the duel.
+        target (str): The username of the player being challenged.
+        duel_type (str): The type of duel (e.g., casual, competitive).
+    
+    
+    '''
+    player_1_1d = get_player(username)
+    player_2_id = get_player(target)
+    
+    # picks a random attacker
+    attacker_id = choices([player_1_1d, player_2_id], k=1)[0]
+
+    # sets the last round date to the current time
+    last_round_dt = datetime.now().isoformat()
+
+    CURSOR.execute(
+        'INSERT INTO duels (player_1_id, player_2_id, attacker_id,last_round_dt) VALUES (?, ?, ?, ?)',
+    )
 
 def insert_player(username: str) -> int:
     '''Insert a new player with default has_rolled = False and return their

bot/response.py

@@ -196,6 +196,12 @@ def duel_request(author: str, args: list[str]) -> BotResponse:
             has not signed up, please sign up before challenging to a duel.',
             'attachment_urls': None
         }
+    if target == author:
+        return {
+            'message': f'{author} You can\'t duel yourself! \
+            Try challenging someone else.',
+            'attachment_urls': None
+        }
     duel_type = 'casual'
     if len(args) == 1 and args[0] == "competitive":
         duel_type = 'competitive'

migrations/0007_duelv1.sql

@@ -29,6 +29,6 @@ CREATE TABLE duels (
     last_round_dt TEXT,
     is_finished BOOLEAN NOT NULL DEFAULT 0,
     points INTEGER NOT NULL DEFAULT 0,
-    winner_id INTEGER,
+    winner_id INTEGER DEFAULT NULL,
     accepted BOOLEAN NOT NULL DEFAULT 0
 );