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from aliyunsdkcore.endpoint.endpoint_resolver_base import EndpointResolverBase


class UserCustomizedEndpointResolver(EndpointResolverBase):

    def __init__(self):
        EndpointResolverBase.__init__(self)
        self._valid_region_ids = set()

    def put_endpoint_entry(self, region_id, product_code, endpoint):
        EndpointResolverBase.put_endpoint_entry(
            self, self._make_endpoint_entry_key(product_code, region_id), endpoint)
        self._valid_region_ids.add(region_id)

    def resolve(self, request):
        return self.fetch_endpoint_entry(request)

    def get_endpoint_key_from_request(self, request):
        return self._make_endpoint_entry_key(request.product_code, request.region_id)

    def _make_endpoint_entry_key(self, product_code, region_id):
        return product_code.lower() + "." + region_id.lower()

    def is_region_id_valid(self, request):
        return self.verify_region_id(request.region_id.lower())

    def reset(self):
        self.endpoints_data = dict()