pre_install() {
    if systemctl status mullvad-daemon &> /dev/null; then
        echo 'Stopping & disabling Mullvad VPN daemon...'
        systemctl disable --now mullvad-daemon
    fi
}

post_install() {
    echo 'Copying sample settings...'
    if [[ ! -e /etc/mullvad-vpn/settings.json ]]; then
        cp -av /etc/mullvad-vpn/settings.json.sample \
            /etc/mullvad-vpn/settings.json
        echo 'Please edit /etc/mullvad-vpn/settings.json'
    fi
    chmod u+s "/usr/bin/mullvad-exclude"
	echo 'Enabling Mullvad VPN daemon...'
	systemctl enable mullvad-daemon
    echo -----------------------------------------------------------------------------------
    echo 'Mullvad daemon enabled but not started because the CLI might be used remotely.'
    echo 'Be aware that the daemon will be started after a reboot.'
    echo 'Please start the daemon now if you want to:'
    echo ''
    echo 'systemctl start mullvad-daemon.service'
    echo -----------------------------------------------------------------------------------
}

pre_upgrade() {
    echo 'Stopping Mullvad VPN daemon...'
    systemctl stop mullvad-daemon
}

post_upgrade() {
    chmod u+s "/usr/bin/mullvad-exclude"
    echo 'Restarting Mullvad VPN daemon...'
    systemctl daemon-reload
    systemctl start mullvad-daemon
}

pre_remove() {
    /usr/bin/mullvad account clear-history || echo "Failed to remove leftover WireGuard keys"

    # the user might've disabled or stopped the service themselves already
    echo 'Making sure the Mullvad VPN daemon is stopped & disabled...'
    systemctl stop mullvad-daemon || true
    systemctl disable mullvad-daemon || true

    /opt/mullvad-vpn-cli/mullvad-setup reset-firewall || true
}

post_remove() {
    echo -------------------------------------------------------------
    echo 'Optionally remove logs & cache:'
    echo 'sudo rm -rf /var/log/mullvad-vpn/'
    echo 'sudo rm -rf /var/cache/mullvad-vpn/'
    echo ''
    echo 'Optionally remove config:'
    echo 'sudo rm /etc/mullvad-vpn/settings.json'
    echo -------------------------------------------------------------
}