Add duel request functionality and update duel table schema

bot/response.py

@@ -181,6 +181,31 @@ def do_help(author: str) -> BotResponse:
         'attachment_urls': None
     }
 
+def duel_request(author: str, args: list[str]) -> BotResponse:
+    '''Sends a duel request to another user.'''
+    if len(args) == 0:
+        return {
+            'message': f'{author} Please specify a user to duel.',
+            '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 challenging to a duel.',
+            'attachment_urls': None
+        }
+    duel_type = 'casual'
+    if len(args) == 1 and args[0] == "competitive":
+        duel_type = 'competitive'
+
+    db.insert_duel_request(author, target, duel_type)
+    return {
+        'message': f'{target} You have been challenged to a {duel_type} duel by \
+        {author}! Reply with `accept_duel` to accept the challenge.',
+        'attachment_urls': None
+    }
 
 def delete_account(author: str) -> BotResponse:
     return {
@@ -325,6 +350,11 @@ def generate_response(notification: ParsedNotification) -> BotResponse | None:
             res = delete_account(author)
         case 'confirm_delete_account':
             res = confirm_delete(author)
+        case 'duel_request':
+            res = duel_request(
+                author,
+                notification['arguments']
+            )
         case _:
             pass
 

migrations/0007_duelv1.sql

@@ -29,5 +29,6 @@ CREATE TABLE duel (
     last_round_dt TEXT,
     is_finished BOOLEAN NOT NULL DEFAULT 0,
     points INTEGER NOT NULL DEFAULT 0,
-    winner_id INTEGER
+    winner_id INTEGER,
+    accepted BOOLEAN NOT NULL DEFAULT 0
 );