from hcloud.core.client import ClientEntityBase, BoundModelBase, GetEntityByNameMixin

from hcloud.datacenters.domain import Datacenter, DatacenterServerTypes
from hcloud.locations.client import BoundLocation
from hcloud.server_types.client import BoundServerType


class BoundDatacenter(BoundModelBase):
    model = Datacenter

    def __init__(self, client, data):
        location = data.get("location")
        if location is not None:
            data["location"] = BoundLocation(client._client.locations, location)

        server_types = data.get("server_types")
        if server_types is not None:
            available = [
                BoundServerType(
                    client._client.server_types, {"id": server_type}, complete=False
                )
                for server_type in server_types["available"]
            ]
            supported = [
                BoundServerType(
                    client._client.server_types, {"id": server_type}, complete=False
                )
                for server_type in server_types["supported"]
            ]
            available_for_migration = [
                BoundServerType(
                    client._client.server_types, {"id": server_type}, complete=False
                )
                for server_type in server_types["available_for_migration"]
            ]
            data["server_types"] = DatacenterServerTypes(
                available=available,
                supported=supported,
                available_for_migration=available_for_migration,
            )

        super(BoundDatacenter, self).__init__(client, data)


class DatacentersClient(ClientEntityBase, GetEntityByNameMixin):
    results_list_attribute_name = "datacenters"

    def get_by_id(self, id):
        # type: (int) -> BoundDatacenter
        """Get a specific datacenter by its ID.

        :param id: int
        :return: :class:`BoundDatacenter <hcloud.datacenters.client.BoundDatacenter>`
        """
        response = self._client.request(
            url="/datacenters/{datacenter_id}".format(datacenter_id=id), method="GET"
        )
        return BoundDatacenter(self, response["datacenter"])

    def get_list(
        self,
        name=None,  # type: Optional[str]
        page=None,  # type: Optional[int]
        per_page=None,  # type: Optional[int]
    ):
        # type: (...) -> PageResults[List[BoundDatacenter], Meta]
        """Get a list of datacenters

        :param name: str (optional)
               Can be used to filter datacenters by their name.
        :param page: int (optional)
               Specifies the page to fetch
        :param per_page: int (optional)
               Specifies how many results are returned by page
        :return: (List[:class:`BoundDatacenter <hcloud.datacenters.client.BoundDatacenter>`], :class:`Meta <hcloud.core.domain.Meta>`)
        """
        params = {}
        if name is not None:
            params["name"] = name

        if page is not None:
            params["page"] = page

        if per_page is not None:
            params["per_page"] = per_page

        response = self._client.request(url="/datacenters", method="GET", params=params)

        datacenters = [
            BoundDatacenter(self, datacenter_data)
            for datacenter_data in response["datacenters"]
        ]

        return self._add_meta_to_result(datacenters, response)

    def get_all(self, name=None):
        # type: (Optional[str]) -> List[BoundDatacenter]
        """Get all datacenters

        :param name: str (optional)
               Can be used to filter datacenters by their name.
        :return: List[:class:`BoundDatacenter <hcloud.datacenters.client.BoundDatacenter>`]
        """
        return super(DatacentersClient, self).get_all(name=name)

    def get_by_name(self, name):
        # type: (str) -> BoundDatacenter
        """Get datacenter by name

        :param name: str
               Used to get datacenter by name.
        :return: :class:`BoundDatacenter <hcloud.datacenters.client.BoundDatacenter>`
        """
        return super(DatacentersClient, self).get_by_name(name)