"""Redis connection configuration."""

from __future__ import annotations

import os
from dataclasses import dataclass

from python_utils import check_env

from python_repositories.config.dotenv_loader import load_dotenv


@dataclass(frozen=True)
class RedisConfig:
    """Configuration for connecting to Redis."""

    uri: str

    @classmethod
    def from_env(
        cls,
        uri_env_var_name: str = "REDIS_URI",
        *,
        use_dotenv: bool = True,
    ) -> RedisConfig:
        """Load configuration from environment variables."""
        if use_dotenv:
            load_dotenv()
        check_env(uri_env_var_name)
        return cls(uri=str(os.getenv(uri_env_var_name)))