# -*- Mode:python; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
#
# Copyright (C) 2015-2020, The University of Memphis,
#                          Arizona Board of Regents,
#                          Regents of the University of California.
#
# This file is part of Mini-NDN.
# See AUTHORS.md for a complete list of Mini-NDN authors and contributors.
#
# Mini-NDN 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.
#
# Mini-NDN 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 Mini-NDN, e.g., in COPYING.md file.
# If not, see <http://www.gnu.org/licenses/>.

from mininet.log import setLogLevel, info

from minindn.minindn import Minindn
from minindn.apps.app_manager import AppManager
from minindn.apps.nfd import Nfd
from minindn.apps.nlsr import Nlsr
from minindn.helpers.ip_routing_helper import IPRoutingHelper

"""
This scenario demonstrates the functionality of the IPRoutingHelper. First, the routing helper
calculates and configures routes between all nodes and then calls the `pingAll` command to
demonstrate that all nodes are reachable.
Successful experiments end with: `*** Results: 0% dropped`

To demonstrate the IPRoutingHelper in more complex scenarios, consider starting the experiment with
the Geant-Topology (topologies/geant.conf).
"""
if __name__ == '__main__':
    setLogLevel('info')

    Minindn.cleanUp()
    Minindn.verifyDependencies()

    ndn = Minindn()

    ndn.start()

    info('Starting NFD on nodes\n')
    nfds = AppManager(ndn, ndn.net.hosts, Nfd)
    info('Starting NLSR on nodes\n')
    nlsrs = AppManager(ndn, ndn.net.hosts, Nlsr)

    # Calculate all routes for IP routing
    IPRoutingHelper.calcAllRoutes(ndn.net)
    info("IP routes configured, start ping\n")

    ndn.net.pingAll()

    ndn.stop()