#!/bin/sh

set -eux pipefail

# containerlab needs some time to setup links
sleep $CONTAINERLAB_TIMEOUT

if [ "$ROLE" = "switch" ]; then
    echo "Configuring as switch with MAC=$MAC"

    if [ "$VLAN" = "yes" ]; then
        ip link add name br0 type bridge vlan_filtering 1
    else
        ip link add name br0 type bridge
    fi

    ip link set dev br0 address $MAC
    ip link set br0 up
    for i in eth1 eth2 eth3 eth4; do
      ip link set $i master br0
      ip link set $i up
    done

    if [ "$VLAN" = "yes" ]; then
        bridge vlan add dev eth1 vid 10 pvid untagged
        bridge vlan add dev eth2 vid 20 pvid untagged
        bridge vlan add dev eth4 vid 10,20
    fi

    echo "Switch setup complete"

elif [ "$ROLE" = "bridge" ]; then
    echo "Configuring as bridge with MAC=$MAC"

    if [ "$VLAN" = "yes" ]; then
        ip link add name br0 type bridge vlan_filtering 1
    else
        ip link add name br0 type bridge
    fi

    ip link set dev br0 address $MAC
    ip link set br0 up
    ip link set eth1 master br0
    ip link set eth2 master br0
    ip link set eth1 up
    ip link set eth2 up

    if [ "$VLAN" = "yes" ]; then
        bridge vlan add dev eth1 vid 10,20
        bridge vlan add dev eth2 vid 10,20
    fi

    echo "Bridge setup complete"

elif [ "$ROLE" = "host" ]; then
    echo "Configuring as host with MAC=$MAC"

    ip link set dev eth1 down
    ip link set dev eth1 address $MAC
    ip link set dev eth1 up

    echo "Host setup complete"

else
    echo "Unknown ROLE: $ROLE"
fi

sleep infinity