# IMPORTS STANDARD
from typing import Any, Dict, Optional

# IMPORTS THIRDPARTY
from dotenv import dotenv_values

# IMPORTS INTERNAL
from openbb_terminal.core.config.paths import (
    PACKAGE_ENV_FILE,
    REPOSITORY_ENV_FILE,
    SETTINGS_ENV_FILE,
)


def reading_env() -> Dict[str, Any]:
    __env_dict: Dict[str, Optional[str]] = {}

    if REPOSITORY_ENV_FILE.exists():
        __env_dict.update(**dotenv_values(REPOSITORY_ENV_FILE))

    if PACKAGE_ENV_FILE.exists():
        __env_dict.update(**dotenv_values(PACKAGE_ENV_FILE))

    if SETTINGS_ENV_FILE.exists():
        __env_dict.update(**dotenv_values(SETTINGS_ENV_FILE))

    __env_dict_filtered = {
        k[len("OPENBBB_") - 1 :]: v
        for k, v in __env_dict.items()
        if k.startswith("OPENBB_")
    }

    return __env_dict_filtered