wip: setting refactor

app/config.py

@@ -1,14 +1,49 @@
 import os
 
-from pydantic import PostgresDsn, RedisDsn
-from pydantic_settings import BaseSettings
+from pydantic import PostgresDsn, RedisDsn, computed_field
+from pydantic_core import MultiHostUrl
+from pydantic_settings import BaseSettings, SettingsConfigDict
 
 
 class Settings(BaseSettings):
-    asyncpg_url: PostgresDsn = os.getenv("SQL_URL")
+    model_config = SettingsConfigDict(
+        env_file=".env",
+        env_ignore_empty=True,
+        extra="ignore"
+    )
+    # asyncpg_url: PostgresDsn = os.getenv("SQL_URL")
     redis_url: RedisDsn = os.getenv("REDIS_URL")
     jwt_algorithm: str = os.getenv("JWT_ALGORITHM")
     jwt_expire: int = os.getenv("JWT_EXPIRE")
 
+    SQL_USER: str
+    SQL_PASS: str
+    SQL_HOST: str
+    SQL_DB: str
+
+    @computed_field
+    @property
+    def asyncpg_url(self) -> PostgresDsn:
+        """
+        This is a computed field that generates a PostgresDsn URL for asyncpg.
+
+        The URL is built using the MultiHostUrl.build method, which takes the following parameters:
+        - scheme: The scheme of the URL. In this case, it is "postgresql+asyncpg".
+        - username: The username for the SQL database, retrieved from the SQL_USER environment variable.
+        - password: The password for the SQL database, retrieved from the SQL_PASS environment variable.
+        - host: The host of the SQL database, retrieved from the SQL_HOST environment variable.
+        - path: The path of the SQL database, retrieved from the SQL_DB environment variable.
+
+        Returns:
+            PostgresDsn: The constructed PostgresDsn URL for asyncpg.
+        """
+        return MultiHostUrl.build(
+            scheme="postgresql+asyncpg",
+            username=self.SQL_USER,
+            password=self.SQL_PASS,
+            host=self.SQL_HOST,
+            path=self.SQL_DB,
+        )
+
 
 settings = Settings()