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"""Runtime configuration shared by gax modules."""

from __future__ import absolute_import

from grpc.beta.interfaces import StatusCode
from grpc.framework.interfaces.face import face
from . import grpc


def exc_to_code(exc):
    """Retrieves the status code from an exception"""
    if not isinstance(exc, face.AbortionError):
        return None
    elif isinstance(exc, face.ExpirationError):
        return StatusCode.DEADLINE_EXCEEDED
    else:
        return getattr(exc, 'code', None)


STATUS_CODE_NAMES = {
    'ABORTED': StatusCode.ABORTED,
    'CANCELLED': StatusCode.CANCELLED,
    'DATA_LOSS': StatusCode.DATA_LOSS,
    'DEADLINE_EXCEEDED': StatusCode.DEADLINE_EXCEEDED,
    'FAILED_PRECONDITION': StatusCode.FAILED_PRECONDITION,
    'INTERNAL': StatusCode.INTERNAL,
    'INVALID_ARGUMENT': StatusCode.INVALID_ARGUMENT,
    'NOT_FOUND': StatusCode.NOT_FOUND,
    'OUT_OF_RANGE': StatusCode.OUT_OF_RANGE,
    'PERMISSION_DENIED': StatusCode.PERMISSION_DENIED,
    'RESOURCE_EXHAUSTED': StatusCode.RESOURCE_EXHAUSTED,
    'UNAUTHENTICATED': StatusCode.UNAUTHENTICATED,
    'UNAVAILABLE': StatusCode.UNAVAILABLE,
    'UNIMPLEMENTED': StatusCode.UNIMPLEMENTED,
    'UNKNOWN': StatusCode.UNKNOWN}
"""Maps strings to the status codes they represent.

This is necessary for google.gax.api_callable.construct_settings to translate
the client constants configuration for retrying into the correct gRPC objects.
"""


create_stub = grpc.create_stub  # pylint: disable=invalid-name,
"""The function to use to create stubs."""
