# -*- coding: utf-8 -*-
#
# Copyright (C) 2013 GNS3 Technologies Inc.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

"""
Hub object that uses the Bridge interface to create a hub with ports.
"""

import asyncio

from ...node_error import NodeError
from ...base_node import BaseNode

import logging
log = logging.getLogger(__name__)


class EthernetHub(BaseNode):

    """
    Ethernet hub

    :param name: name for this hub
    :param node_id: Node identifier
    :param project: Project instance
    :param manager: Parent VM Manager
    """

    def __init__(self, name, node_id, project, manager):

        super().__init__(name, node_id, project, manager)
        self._mappings = {}

    def __json__(self):

        return {"name": self.name,
                "project_id": self.project.id,
                "node_id": self.id}

    # @asyncio.coroutine
    # def create(self):
    #
    #     yield from Bridge.create(self)
    #     log.info('Ethernet hub "{name}" [{id}] has been created'.format(name=self._name, id=self._id))
    #
    # @property
    # def mappings(self):
    #     """
    #     Returns port mappings
    #
    #     :returns: mappings list
    #     """
    #
    #     return self._mappings
    #
    # @asyncio.coroutine
    # def delete(self):
    #     """
    #     Deletes this hub.
    #     """
    #
    #     for nio in self._nios:
    #         if nio and isinstance(nio, NIOUDP):
    #             self.manager.port_manager.release_udp_port(nio.lport, self._project)
    #
    #     try:
    #         yield from Bridge.delete(self)
    #         log.info('Ethernet hub "{name}" [{id}] has been deleted'.format(name=self._name, id=self._id))
    #     except DynamipsError:
    #         log.debug("Could not properly delete Ethernet hub {}".format(self._name))
    #     if self._hypervisor and not self._hypervisor.devices:
    #         yield from self.hypervisor.stop()
    #
    # @asyncio.coroutine
    # def add_nio(self, nio, port_number):
    #     """
    #     Adds a NIO as new port on this hub.
    #
    #     :param nio: NIO instance to add
    #     :param port_number: port to allocate for the NIO
    #     """
    #
    #     if port_number in self._mappings:
    #         raise DynamipsError("Port {} isn't free".format(port_number))
    #
    #     yield from Bridge.add_nio(self, nio)
    #
    #     log.info('Ethernet hub "{name}" [{id}]: NIO {nio} bound to port {port}'.format(name=self._name,
    #                                                                                    id=self._id,
    #                                                                                    nio=nio,
    #                                                                                    port=port_number))
    #     self._mappings[port_number] = nio
    #
    # @asyncio.coroutine
    # def remove_nio(self, port_number):
    #     """
    #     Removes the specified NIO as member of this hub.
    #
    #     :param port_number: allocated port number
    #
    #     :returns: the NIO that was bound to the allocated port
    #     """
    #
    #     if port_number not in self._mappings:
    #         raise DynamipsError("Port {} is not allocated".format(port_number))
    #
    #     nio = self._mappings[port_number]
    #     if isinstance(nio, NIOUDP):
    #         self.manager.port_manager.release_udp_port(nio.lport, self._project)
    #     yield from Bridge.remove_nio(self, nio)
    #
    #     log.info('Ethernet switch "{name}" [{id}]: NIO {nio} removed from port {port}'.format(name=self._name,
    #                                                                                           id=self._id,
    #                                                                                           nio=nio,
    #                                                                                           port=port_number))
    #
    #     del self._mappings[port_number]
    #     return nio
    #
    # @asyncio.coroutine
    # def start_capture(self, port_number, output_file, data_link_type="DLT_EN10MB"):
    #     """
    #     Starts a packet capture.
    #
    #     :param port_number: allocated port number
    #     :param output_file: PCAP destination file for the capture
    #     :param data_link_type: PCAP data link type (DLT_*), default is DLT_EN10MB
    #     """
    #
    #     if port_number not in self._mappings:
    #         raise DynamipsError("Port {} is not allocated".format(port_number))
    #
    #     nio = self._mappings[port_number]
    #
    #     data_link_type = data_link_type.lower()
    #     if data_link_type.startswith("dlt_"):
    #         data_link_type = data_link_type[4:]
    #
    #     if nio.input_filter[0] is not None and nio.output_filter[0] is not None:
    #         raise DynamipsError("Port {} has already a filter applied".format(port_number))
    #
    #     yield from nio.bind_filter("both", "capture")
    #     yield from nio.setup_filter("both", '{} "{}"'.format(data_link_type, output_file))
    #
    #     log.info('Ethernet hub "{name}" [{id}]: starting packet capture on port {port}'.format(name=self._name,
    #                                                                                            id=self._id,
    #                                                                                            port=port_number))
    #
    # @asyncio.coroutine
    # def stop_capture(self, port_number):
    #     """
    #     Stops a packet capture.
    #
    #     :param port_number: allocated port number
    #     """
    #
    #     if port_number not in self._mappings:
    #         raise DynamipsError("Port {} is not allocated".format(port_number))
    #
    #     nio = self._mappings[port_number]
    #     yield from nio.unbind_filter("both")
    #     log.info('Ethernet hub "{name}" [{id}]: stopping packet capture on port {port}'.format(name=self._name,
    #                                                                                            id=self._id,
    #                                                                                            port=port_number))