Source code for da_vinci.core.global_settings

from os import getenv
from typing import Any

from da_vinci.core.exceptions import GlobalSettingNotFoundError, GlobalSettingsNotEnabledError
from da_vinci.core.orm.client import TableClient
from da_vinci.core.tables.global_settings_table import GlobalSetting, GlobalSettings

SETTINGS_ENABLED_VAR_NAME = "DaVinciFramework_GlobalSettingsEnabled"




def global_settings_available() -> bool:
    """
    Check if global settings are available

    Try the environment variable first, then check if the settings table exists
    if the environment variable is not set.
    """
    env_var = getenv(SETTINGS_ENABLED_VAR_NAME)

    if env_var is not None:
        return env_var.lower() == "true"

    return TableClient.table_resource_exists(table_object_class=GlobalSetting)





def setting_value(namespace: str, setting_key: str) -> Any | None:
    """
    Retrieve a setting value as the correct Python type, given
    a namespace and key

    Arguments:
        setting_key: The setting key
        namespace: The namespace of the setting
    """
    if not global_settings_available():
        raise GlobalSettingsNotEnabledError()

    settings = GlobalSettings()

    setting = settings.get(namespace=namespace, setting_key=setting_key)

    if setting:
        return setting.value_as_type()
    else:
        raise GlobalSettingNotFoundError(
            namespace=namespace,
            setting_key=setting_key,
        )