Add optional Redis username and password support

.env.example

@@ -6,3 +6,5 @@ BOT_EMOJI_ID=5417915203100613993
 REDIS_HOST=redis
 REDIS_PORT=6379
 REDIS_DB=0
+REDIS_USERNAME=
+REDIS_PASSWORD=

app/__main__.py

@@ -63,11 +63,7 @@ async def main() -> None:
     config = load_config()
 
     # Initialize apscheduler
-    job_store = RedisJobStore(
-        host=config.redis.HOST,
-        port=config.redis.PORT,
-        db=config.redis.DB,
-    )
+    job_store = RedisJobStore(**config.redis.connection_dict)
     apscheduler = AsyncIOScheduler(
         jobstores={"default": job_store},
     )

app/config.py

@@ -33,14 +33,38 @@ class RedisConfig:
     HOST: str
     PORT: int
     DB: int
+    USERNAME: str | None
+    PASSWORD: str | None
 
     def dsn(self) -> str:
         """
         Generates a Redis connection DSN (Data Source Name) using the provided host, port, and database.
 
         :return: The generated DSN.
         """
-        return f"redis://{self.HOST}:{self.PORT}/{self.DB}"
+        if self.PASSWORD:
+            return f"redis://{self.USERNAME or ''}:{self.PASSWORD}@{self.HOST}:{self.PORT}/{self.DB}"
+        else:
+            return f"redis://{self.HOST}:{self.PORT}/{self.DB}"
+
+    @property
+    def connection_dict(self) -> dict[str, str | int]:
+        """
+        Connection kwargs for Redis clients.
+        """
+
+        args = dict(
+            host=self.HOST,
+            port=self.PORT,
+            db=self.DB,
+        )
+
+        if self.USERNAME:
+            args["username"] = self.USERNAME
+        if self.PASSWORD:
+            args["password"] = self.PASSWORD
+
+        return args
 
 
 @dataclass
@@ -76,5 +100,7 @@ def load_config() -> Config:
             HOST=env.str("REDIS_HOST"),
             PORT=env.int("REDIS_PORT"),
             DB=env.int("REDIS_DB"),
+            USERNAME=env.str("REDIS_USERNAME", None),
+            PASSWORD=env.str("REDIS_PASSWORD", None),
         ),
     )