Add config settings for project

DOCS/database_scheme.wsd

@@ -19,6 +19,7 @@ $table("EXERCISE", "exercise"){
     $column("NAME") VARCHAR
 }
 
+
 $table("APPROACH", "approach"){
     $pk("ID") INTEGER NOT NULL
     $fk("EXERCISE") INTEGER NOT NULL

DOCS/deployment.puml

@@ -0,0 +1,25 @@
+@startuml
+actor client
+agent "web interface" as WEB_UI
+agent "ios app" as IOS_APP
+agent "telegram app" as TG_APP
+
+frame docker:f1tness_db {
+    database "PostgreSQL" as db
+}
+
+frame docker:fastAPI {
+    node backend_API
+    node frontend_renderer
+}
+
+client <--> WEB_UI
+client <--> IOS_APP
+client <--> TG_APP
+
+WEB_UI <--> frontend_renderer
+IOS_APP <--> backend_API
+TG_APP <--> backend_API
+
+backend_API --> db
+@enduml

app/config.py

@@ -3,12 +3,36 @@ from typing import Optional
 
 
 class Settings(BaseSettings):
-    app_name: str = "Fitness Parser API"
-    version: str = "0.1.0"
+    # Base app settings
+    app_name: str = "F1tness Parser API"
+    version: str = "0.0.1"
     debug: bool = False
-    
+
+    # Postgres database settings
+    POSTGRES_DATABASE_URL: Optional[str] = None
+    POSTGRES_DATABASE_HOST: str = "localhost"
+    POSTGRES_DATABASE_PORT: int = 5432
+    POSTGRES_DATABASE_NAME: str = "f1tness_db"
+    POSTGRES_DATABASE_USER: str = "postgres"
+    POSTGRES_DATABASE_PASSWORD: str = "password"
+
     class Config:
         env_file = ".env"
 
+    def get_postgres_database_url(self, async_driver: bool = True) -> str:
+        """Method for receiving relational database URL"""
+
+        # If POSTGRES_DATABASE_URL is somehow set in env file - return it
+        if self.POSTGRES_DATABASE_URL:
+            return self.POSTGRES_DATABASE_URL
+
+        driver = "postgresql+asyncpg" if async_driver else "postgresql"
+        return (
+            f"{driver}://{self.POSTGRES_DATABASE_USER}:{self.POSTGRES_DATABASE_PASSWORD}"
+            f"@{self.POSTGRES_DATABASE_HOST}"
+            f":{self.POSTGRES_DATABASE_PORT}/{self.POSTGRES_DATABASE_NAME}"
+        )
+
+
+settings = Settings()
 
-settings = Settings()