# Copyright 2024 Max Planck Institute for Software Systems, and
# National University of Singapore
#
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# permit persons to whom the Software is furnished to do so, subject to
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#
# The above copyright notice and this permission notice shall be
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from simbricks.orchestration.system import base


class EthInterface(base.Interface):
    def __init__(self, c: base.Component) -> None:
        super().__init__(c)

    def connect(self, c: base.Channel) -> None:
        # Note AK: a bit ugly, but I think we can't get around a rt check here
        if not c is isinstance(c, EthChannel):
            raise TypeError("EthInterface only connects to EthChannel")
        super().connect(c)


class EthChannel(base.Channel):
    def __init__(self, a: EthInterface, b: EthInterface) -> None:
        super().__init__(a, b)


class EthSimpleNIC(base.Component):
    def __init__(self, s: base.System) -> None:
        super().__init__(s)
        self.ip = None
        self.eth_if = EthInterface(self)

    def add_ipv4(self, ip: str) -> None:
        self.ip = ip

class BaseEthNetComponent(base.Component):
    def __init__(self, s: base.System) -> None:
        super().__init__(s)
        self.eth_ifs: EthInterface = []

    def if_add(self, i: EthInterface) -> None:
        self.eth_ifs.append(i)

    def interfaces(self) -> list[EthInterface]:
        return self.eth_ifs


class EthWire(BaseEthNetComponent):
    def __init__(self, s: base.System) -> None:
        super().__init__(s)

    def if_add(self, i: EthInterface) -> None:
        if len(self.eth_ifs) > 2:
            raise Exception("one can only add 2 interfaces to a EthWire")
        self.eth_ifs.append(i)


class EthSwitch(BaseEthNetComponent):
    def __init__(self, s: base.System) -> None:
        super().__init__(s)
