# shellcheck shell=bash disable=SC2034  # sourced by run-net-scenarios.sh
# Scenario: a rival network manager active alongside NetworkManager is disabled.
#
# dhcpcd (or systemd-networkd / iwd) running next to NM fights it for the link.
# Break by enabling dhcpcd; the fix disables it, and the chain resets to
# reconnect. Requires dhcpcd installed in the target.
SCENARIO_DESC="an active rival manager (dhcpcd) is disabled"
SCENARIO_GROUP="control-plane"

scenario_break() {
    nexec "systemctl enable --now dhcpcd"
}

scenario_diagnose_expect() {
    # The verdict fires only when the link is also failing; in a fresh target
    # with no configured uplink that holds, so the rival should be named.
    ndoctor_json ".report.control_plane.rivals | index(\"dhcpcd\")" \
        | grep -vqx null
}

scenario_fix() {
    nfix
}

scenario_assert() {
    ! nexec "systemctl is-active dhcpcd >/dev/null 2>&1"
}