# Copyright (c) 2021 Advanced Micro Devices, Inc.
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
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from m5.objects import *
from m5.util import fatal

from importlib import *

from network import Network


class DisjointSimple(SimpleNetwork):
    def __init__(self, ruby_system):
        super(DisjointSimple, self).__init__()

        self.netifs = []
        self.routers = []
        self.int_links = []
        self.ext_links = []
        self.ruby_system = ruby_system

    def connectCPU(self, opts, controllers):

        # Setup parameters for makeTopology call for CPU network
        topo_module = import_module(f"topologies.{opts.cpu_topology}")
        topo_class = getattr(topo_module, opts.cpu_topology)
        _topo = topo_class(controllers)
        _topo.makeTopology(opts, self, SimpleIntLink, SimpleExtLink, Switch)

        self.initSimple(opts, self.int_links, self.ext_links)

    def connectGPU(self, opts, controllers):

        # Setup parameters for makeTopology call for GPU network
        topo_module = import_module(f"topologies.{opts.gpu_topology}")
        topo_class = getattr(topo_module, opts.gpu_topology)
        _topo = topo_class(controllers)
        _topo.makeTopology(opts, self, SimpleIntLink, SimpleExtLink, Switch)

        self.initSimple(opts, self.int_links, self.ext_links)

    def initSimple(self, opts, int_links, ext_links):

        # Attach links to network
        self.int_links = int_links
        self.ext_links = ext_links

        self.setup_buffers()


class DisjointGarnet(GarnetNetwork):
    def __init__(self, ruby_system):
        super(DisjointGarnet, self).__init__()

        self.netifs = []
        self.ruby_system = ruby_system

    def connectCPU(self, opts, controllers):

        # Setup parameters for makeTopology call for CPU network
        topo_module = import_module(f"topologies.{opts.cpu_topology}")
        topo_class = getattr(topo_module, opts.cpu_topology)
        _topo = topo_class(controllers)
        _topo.makeTopology(
            opts, self, GarnetIntLink, GarnetExtLink, GarnetRouter
        )

        Network.init_network(opts, self, GarnetNetworkInterface)

    def connectGPU(self, opts, controllers):

        # Setup parameters for makeTopology call
        topo_module = import_module(f"topologies.{opts.gpu_topology}")
        topo_class = getattr(topo_module, opts.gpu_topology)
        _topo = topo_class(controllers)
        _topo.makeTopology(
            opts, self, GarnetIntLink, GarnetExtLink, GarnetRouter
        )

        Network.init_network(opts, self, GarnetNetworkInterface)