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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
"""Classes for interacting with Kubernetes API"""

from kubernetes.client import models as k8s


class Resources:
    """backwards compat for Resources"""

    __slots__ = (
        "request_memory",
        "request_cpu",
        "limit_memory",
        "limit_cpu",
        "limit_gpu",
        "request_ephemeral_storage",
        "limit_ephemeral_storage",
    )

    """
    :param request_memory: requested memory
    :type request_memory: str
    :param request_cpu: requested CPU number
    :type request_cpu: float | str
    :param request_ephemeral_storage: requested ephemeral storage
    :type request_ephemeral_storage: str
    :param limit_memory: limit for memory usage
    :type limit_memory: str
    :param limit_cpu: Limit for CPU used
    :type limit_cpu: float | str
    :param limit_gpu: Limits for GPU used
    :type limit_gpu: int
    :param limit_ephemeral_storage: Limit for ephemeral storage
    :type limit_ephemeral_storage: float | str
    """

    def __init__(
        self,
        request_memory=None,
        request_cpu=None,
        request_ephemeral_storage=None,
        limit_memory=None,
        limit_cpu=None,
        limit_gpu=None,
        limit_ephemeral_storage=None,
    ):
        self.request_memory = request_memory
        self.request_cpu = request_cpu
        self.request_ephemeral_storage = request_ephemeral_storage
        self.limit_memory = limit_memory
        self.limit_cpu = limit_cpu
        self.limit_gpu = limit_gpu
        self.limit_ephemeral_storage = limit_ephemeral_storage

    def to_k8s_client_obj(self):
        """
        Converts to k8s object.

        @rtype: object
        """
        limits_raw = {
            "cpu": self.limit_cpu,
            "memory": self.limit_memory,
            "nvidia.com/gpu": self.limit_gpu,
            "ephemeral-storage": self.limit_ephemeral_storage,
        }
        requests_raw = {
            "cpu": self.request_cpu,
            "memory": self.request_memory,
            "ephemeral-storage": self.request_ephemeral_storage,
        }

        limits = {k: v for k, v in limits_raw.items() if v}
        requests = {k: v for k, v in requests_raw.items() if v}
        resource_req = k8s.V1ResourceRequirements(limits=limits, requests=requests)
        return resource_req


class Port:
    """POD port"""

    __slots__ = ("name", "container_port")

    def __init__(self, name=None, container_port=None):
        """Creates port"""
        self.name = name
        self.container_port = container_port

    def to_k8s_client_obj(self):
        """
        Converts to k8s object.

        :rtype: object
        """
        return k8s.V1ContainerPort(name=self.name, container_port=self.container_port)