_homedir=/var/lib/libresonic
_playlistdir=/var/playlists

post_install() {

    getent group libresonic &>/dev/null || groupadd --system libresonic > /dev/null
    getent passwd libresonic &>/dev/null || useradd --system \
                                                  --home-dir /var/lib/libresonic \
                                                  --shell /usr/bin/nologin \
                                                  --gid libresonic \
                                                  --groups audio \
                                                  --comment "Libresonic user" \
                                                  libresonic > /dev/null
    passwd --lock libresonic &> /dev/null

    fix_permissions
    echo "*************************************************"
    echo "* Edit /etc/libresonic.conf to configure libresonic *"
    echo "*************************************************"

    systemctl daemon-reload
}

pre_remove() {
    if [[ `systemctl is-active libresonic` == 'active' ]]; then
        systemctl stop libresonic
    fi
}

post_remove() {
    getent passwd libresonic &>/dev/null && userdel libresonic &>/dev/null
    getent group libresonic &>/dev/null && groupdel libresonic &>/dev/null
}

fix_permissions() {
    chown -R libresonic:libresonic ${_homedir}
    chown libresonic:libresonic ${_playlistdir}
}

pre_upgrade() {
    rm -f /tmp/libresonic-was-active
    if [[ `systemctl is-active libresonic` == 'active' ]]; then
        touch /tmp/libresonic-was-active
        echo "Stopping libresonic"
        systemctl stop libresonic
    fi
}

post_upgrade() {
    post_install
    if [ -e /tmp/libresonic-was-active ]; then
        echo "Starting libresonic"
        systemctl start libresonic
        rm /tmp/libresonic-was-active
    fi
}