from apollo_notifications.config import RequiredAnnotations


class UserDataConfig(RequiredAnnotations):
    """Configuration class for the User Data Client (connector to apollo-user-data-api service).

    Attributes:
        USER_DATA_SCHEMA: http or https.
        USER_DATA_HOST: apollo-user-data-api service host.
        USER_DATA_APIKEY: apollo-user-data-api service authentication key.
        USER_DATA_TIMEOUT: requests timeout for apollo-user-data-api service.
        USER_DATA_RETRY_COUNT: number of attempts to retry in case of having errors on requesting.
        USER_DATA_RETRY_DELAY: delay (seconds) between sequential attempts in case of having errors on requesting.
        USER_DATA_BATCH_SIZE: number of items got per one request (page size).
        USER_DATA_APP_HEADER: application header 'X-App-Slug' value (required for settings requests)
    """
    USER_DATA_SCHEMA: str
    USER_DATA_HOST: str
    USER_DATA_APIKEY: str
    USER_DATA_TIMEOUT: int = 120
    USER_DATA_RETRY_COUNT: int = 3
    USER_DATA_RETRY_DELAY: int = 1
    USER_DATA_BATCH_SIZE: int = 1000
    USER_DATA_APP_HEADER: str = "apollo"