# vim: ft=sh

function _systemctl () {

    test -n "$1" || return

    eval $(systemctl show $1 | egrep '^(ExecMainStatus|Result|ActiveState|SubState|Type)=')

    if test -n "$Type"; then

           test $ExecMainStatus -eq 0 \

        && test $Result = 'success' \

        && test $ActiveState = 'active' \

        && [[ ( $Type =~ ^(simple|forking|notify)$ && $SubState = 'running' ) || ( $Type = 'oneshot' && $SubState = 'exited' ) ]] \

        || echo "état du service anormal"

    else

        echo "service $1 inexistant"

    fi

}

function sys_state () {

    local failed_units=

    eval $(systemctl show | egrep '^(SystemState|NFailedUnits)=')

    if test $SystemState != "running" -o $NFailedUnits -ne 0; then

        msg="$SystemState mode ($NFailedUnits units failed):%0a"

        msg+=$(systemctl --failed --no-legend | awk '

            {

                split($1, units, ".")

                failed[units[2]][units[1]]=1

                numfailed[units[2]]++

            }

            END {

                for (ut in failed) { 

                    printf("%s%%0a", ut)

                    for (un in failed[ut]) {

                        last = --numfailed[ut] == 0 ? 1 : 0

                        printf("%s %s%s", last ? "└─" : "├─", un, last ? "" : "%0a")

                    }

                }

            }')

    fi

}

function upgrades () {

    local log="/var/log/unattended-upgrades/unattended-upgrades.log"

    test -r $log || return

    local lastline=$(tail -1 $log)

    local lastentry=$(date +%s -d "$(cut -f1,2 -d' ' <<< $lastline)")

    test -n "$lastentry" || return

    local status=$(cut -f3 -d' ' <<< $lastline)

    test $(($lastentry + 86400)) -lt $now && echo "pas de mise à jour depuis le ${lastline%% *}"

}