#!/bin/bash
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

## launch vps check-service and if the result is not empty: send a notification
## If the result is empty, remove the state file
## ``vps check-service`` output is filled only if there is a problem


STATE_WORKING_DIR="/var/run/elab-manage"
mkdir -p "$STATE_WORKING_DIR"
STATE_CHECK_SERVICE="$STATE_WORKING_DIR/check_service.state"


vps_check_service=$(vps check-service)

if [ -n "$vps_check_service" ]; then
    msg="New"
    if [ -e "$STATE_CHECK_SERVICE" ]; then
        if [[ "$(cat "$STATE_CHECK_SERVICE")" == "$vps_check_service" ]]; then
            exit 0
        fi
        msg="Changed"
    fi

    echo "$vps_check_service" > "$STATE_CHECK_SERVICE"
    title="alert: check-service failed"
    message="$vps_check_service"
    echo "MESSAGE: '$message'" >&2
    send -c check-service.alert -t "$title ($msg)" "$message"
else
    if [ -e "$STATE_CHECK_SERVICE" ]; then
        rm "$STATE_CHECK_SERVICE"
    fi
fi