settings.py

import os
from functools import lru_cache

from pydantic import ConfigDict, PostgresDsn
from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    """Application settings"""

    DB_DSN: PostgresDsn = 'postgresql://postgres@localhost:5432/postgres'

    KAFKA_DSN: str | None = None
    KAFKA_LOGIN: str | None = None
    KAFKA_PASSWORD: str | None = None
    KAFKA_TOPICS: list[str] | None = None
    KAFKA_GROUP_ID: str | None = None

    ROOT_PATH: str = '/' + os.getenv("APP_NAME", "")

    CORS_ALLOW_ORIGINS: list[str] = ['*']
    CORS_ALLOW_CREDENTIALS: bool = True
    CORS_ALLOW_METHODS: list[str] = ['*']
    CORS_ALLOW_HEADERS: list[str] = ['*']
    model_config = ConfigDict(case_sensitive=True, env_file=".env", extra="allow")


@lru_cache
def get_settings() -> Settings:
    settings = Settings()
    return settings