class MpConfig:

    PING_OUTPUT = "ping.log"

    def __init__(self, topo, param):
        self.topo = topo
        self.param = param

    def configureNetwork(self):
        print("Configure interfaces....Generic call ?")
        self.configureInterfaces()
        self.configureRoute()

    def getMidL2RInterface(self, id):
        "get Middle link, left to right interface"
        pass

    def getMidR2LInterface(self, id):
        pass

    def getMidLeftName(self, i):
        "get Middle link, left box name"
        pass

    def getMidRightName(self, i):
        pass

    def configureInterfaces(self):
        pass

    def getClientInterfaceCount(self):
        raise Exception("To be implemented")

    def interfaceBUPCommand(self, interfaceName):
        s = "/home/mininet/git/iproute-mptcp/ip/ip link set dev " + interfaceName + " multipath backup "
        print(s)
        return s

    def interfaceUpCommand(self, interfaceName, ip, subnet):
        s = "ifconfig " + interfaceName + " " + ip + " netmask " + \
            subnet
        print(s)
        return s

    def addRouteTableCommand(self, fromIP, id):
        s = "ip rule add from " + fromIP + " table " + str(id + 1)
        print(s)
        return s

    def addRouteScopeLinkCommand(self, network, interfaceName, id):
        s = "ip route add " + network + " dev " + interfaceName + \
                " scope link table " + str(id + 1)
        print(s)
        return s

    def addRouteDefaultCommand(self, via, id):
        s = "ip route add default via " + via + " table " + str(id + 1)
        print(s)
        return s

    def addRouteDefaultGlobalCommand(self, via, interfaceName):
        s = "ip route add default scope global nexthop via " + via + \
                " dev " + interfaceName
        print(s)
        return s

    def arpCommand(self, ip, mac):
        s = "arp -s " + ip + " " + mac
        print(s)
        return s

    def addRouteDefaultSimple(self, via):
        s = "ip route add default via " + via
        print(s)
        return s

    def pingCommand(self, fromIP, toIP, n=5):
        s = "ping -c " + str(n) + " -I " + fromIP + " " + toIP + \
                " >> " + MpConfig.PING_OUTPUT
        print(s)
        return s