#!/bin/sh

set -e

# "powerpc" is not supported unfortunately, do nothing here# 
if [ "$DPKG_MAINTSCRIPT_ARCH" = powerpc ]; then
    exit 0
fi

systemctl_stop() {
    unit="$1"

    echo "Stopping unit $unit"
    systemctl stop -q "$unit" || true

    for i in $(seq 20); do
        echo "Waiting until unit $unit is stopped [attempt $i]"
        if ! systemctl is-active -q "$unit"; then
            echo "$unit is stopped."
            break
        fi
        sleep .1
    done

    if echo "$unit" | grep -q '.*\.service' ; then
        # snap services can request KillMode=process, which would result in only
        # the main process getting stopped, however during purge we are doing a
        # full cleanup
        systemctl kill -q "$unit" || true
    fi
}

if [ "$1" = "remove" ]; then
    units=$(systemctl list-unit-files --full | grep '^snap\.' | cut -f1 -d ' ' | grep -vF snap.mount.service || true)
    tostop=$(echo "$units" | grep -E '^snap\..*\.(service|timer|socket)$' || true)

    for unit in $tostop; do
        # ensure it's really a snap mount unit or systemd unit
        if  ! grep -q 'X-Snappy=yes' "/etc/systemd/system/$unit"; then
            echo "Skipping non-snapd systemd unit $unit"
            continue
        fi

        echo "Stopping $unit"
        systemctl_stop "$unit"
    done
fi

# Automatically added by dh_installdeb/13.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/sudoers.d/99-snapd.conf 2.50~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb/13.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/ld.so.conf.d/snappy.conf 2.0.7~ -- "$@"
# End automatically added section
# Automatically added by dh_installdeb/13.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/grub.d/09_snappy 1.7.3ubuntu1 -- "$@"
# End automatically added section
# Automatically added by dh_installdeb/13.6ubuntu1
dpkg-maintscript-helper rm_conffile /etc/apparmor.d/usr.lib.snapd.snap-confine 2.23.6~ -- "$@"
# End automatically added section
# Automatically added by dh_systemd_start/13.6ubuntu1
if [ -z "${DPKG_ROOT:-}" ] && [ "$1" = remove ] && [ -d /run/systemd/system ] ; then
	deb-systemd-invoke stop 'snapd.apparmor.service' 'snapd.autoimport.service' 'snapd.core-fixup.service' 'snapd.failure.service' 'snapd.gpio-chardev-setup.target' 'snapd.mounts.target' 'snapd.recovery-chooser-trigger.service' 'snapd.seeded.service' 'snapd.snap-repair.service' 'snapd.snap-repair.timer' 'snapd.system-shutdown.service' >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_systemd_start/13.6ubuntu1
if [ -z "${DPKG_ROOT:-}" ] && [ "$1" = remove ] && [ -d /run/systemd/system ] ; then
	deb-systemd-invoke stop 'snapd.service' >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_systemd_start/13.6ubuntu1
if [ -z "${DPKG_ROOT:-}" ] && [ "$1" = remove ] && [ -d /run/systemd/system ] ; then
	deb-systemd-invoke stop 'snapd.socket' >/dev/null || true
fi
# End automatically added section