#!/bin/bash

# Abort if any command returns an error value 
set -e

# This script is called as the last step of the installation of the 
# package.  All the package's files are in place, dpkg has already
# done its automatic conffile handling, and all the packages we depend
# of are already fully installed and configured.

case "$1" in
  triggered)
    # We don't print a status message here, as dpkg already said
    # "Processing triggers for ...".

    # test if /etc/pve is mounted; else simple exit to avoid
    # error during updates
    test -f /etc/pve/local/pve-ssl.pem || exit 0;
    test -e /proxmox_install_mode && exit 0;

    # Note: reload-or-try-restart fails if service is not active
    systemctl --quiet is-active pvedaemon.service && deb-systemd-invoke reload-or-try-restart pvedaemon.service
    systemctl --quiet is-active pvestatd.service && deb-systemd-invoke reload-or-try-restart pvestatd.service
    systemctl --quiet is-active pveproxy.service && deb-systemd-invoke reload-or-try-restart pveproxy.service
    systemctl --quiet is-active spiceproxy.service && deb-systemd-invoke reload-or-try-restart spiceproxy.service

    exit 0;;

  configure)
    # Configure this package.  If the package must prompt the user for
    # information, do it here.

    mkdir /etc/pve 2>/dev/null || true

    # remove old cron.daily update job to randomize it
    if test -e /etc/cron.daily/pve; then
	echo "Remove old update script from cron.daily"
	rm /etc/cron.daily/pve
    fi

    if dpkg --compare-versions "$2" '<=' '5.1-47'; then
	# remove old/unused init.d files
	OLD_INITD_FILES="pvebanner pvenetcommit pve-manager pvedaemon pveproxy pvestatd spiceproxy"
	for f in ${OLD_INITD_FILES}; do rm -f "/etc/init.d/$f"; done
    fi

    # create new daily randomize update cronjob if not exist
    MIN="$(shuf -i 0-59 -n 1)"
    HOUR="$(shuf -i 2-5 -n 1)"
    cat <<EOF >/etc/cron.d/pveupdate
# automatically generated - do not edit
${MIN} ${HOUR} * * * root /usr/bin/pveupdate
EOF

    if test ! -e /var/lib/pve-manager/apl-info/download.proxmox.com; then
	mkdir -p /var/lib/pve-manager/apl-info
	cp /usr/share/doc/pve-manager/aplinfo.dat /var/lib/pve-manager/apl-info/download.proxmox.com
	pveam update || true
    fi

    if ! test -f /root/.forward || ! grep -q '|/usr/bin/pvemailforward' /root/.forward; then
	echo '|/usr/bin/pvemailforward' >>/root/.forward
    fi

    if [ -f /etc/systemd/system/ceph.service ]; then
	md5=$(md5sum /etc/systemd/system/ceph.service)
	if [[ "$md5" == "21b2e7a7c4ffcf92ad0ec2c905e88e5b  /etc/systemd/system/ceph.service" ]]; then
	    echo "Updating PVE ceph.service to correct install target.."
	    cp /usr/share/doc/pve-manager/examples/ceph.service /etc/systemd/system/ceph.service
	    systemctl --system daemon-reload >/dev/null || true
	    systemctl --system disable ceph.service
	    systemctl --system enable ceph.service
	    echo " done"
	fi
    fi

    systemctl --system daemon-reload >/dev/null || true

    # same as dh_systemd_enable (code copied)

    for timer in pvesr; do
	deb-systemd-helper unmask $timer.timer >/dev/null || true

	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled $timer.timer; then
	    # Enables the unit on first installation, creates new
	    # symlinks on upgrades if the unit file has changed.
	    deb-systemd-helper enable $timer.timer >/dev/null || true
	else
	    # Update the statefile to add new symlinks (if any), which need to be
	    # cleaned up on purge. Also remove old symlinks.
	    deb-systemd-helper update-state $timer.timer >/dev/null || true
	fi
    done

    for service in pvedaemon pveproxy spiceproxy pvestatd pvebanner pvenetcommit pve-guests; do
	deb-systemd-helper unmask $service.service >/dev/null || true

	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled $service.service; then
	    # Enables the unit on first installation, creates new
	    # symlinks on upgrades if the unit file has changed.
	    deb-systemd-helper enable $service.service >/dev/null || true
	else
	    # Update the statefile to add new symlinks (if any), which need to be
	    # cleaned up on purge. Also remove old symlinks.
	    deb-systemd-helper update-state $service.service >/dev/null || true
	fi
    done

    if test ! -e /proxmox_install_mode; then

	for service in pvedaemon pveproxy spiceproxy pvestatd; do
	    deb-systemd-invoke reload-or-restart $service
	done

	deb-systemd-invoke start pvesr.timer >/dev/null || true
    fi

    # rewrite banner
    test -e /proxmox_install_mode || pvebanner || true

    #a2ensite pve.conf >/dev/null 2>&1

    if test -z "$2"; then
      : # no old version, nothing to do
    else
      # "$2" is the most recently configured version
      if dpkg --compare-versions "$2" '<=' '5.0-23'; then
        # 5.0-23 temporarily reverted the removal of the startcom CA in
        # ca-certificates; we've since switched to let's encrypt
        update-ca-certificates >/dev/null 2>&1
      fi
    fi
    ;;

  abort-upgrade|abort-remove|abort-deconfigure)
    ;;

  *) echo "$0: didn't understand being called with \`$1'" 1>&2
     exit 0;;
esac

exit 0