#!/bin/sh
echo $0 $* | /usr/bin/ts '[%Y-%m-%d %H:%M:%S]'

# RootDir=/home/oleg/develop/cvtt2
RootDir="${HOME}/prod"

export PYTHONPATH=${RootDir}


# Temporary
MmStatusSender=
MmStatusSender="${MmStatusSender} ${HOME}/.pyenv/python3.10-venv/bin/python3"
MmStatusSender="${MmStatusSender} ${RootDir}/cvttpy/apps/utils/mmost_sender.py"
MmStatusSender="${MmStatusSender} --channel=Status-CVTT"
MmStatusSender="${MmStatusSender} --log_level=ERROR"

MmAlertSender=
MmAlertSender="${MmAlertSender} ${HOME}/.pyenv/python3.10-venv/bin/python3"
MmAlertSender="${MmAlertSender} ${RootDir}/cvttpy/apps/utils/mmost_sender.py"
MmAlertSender="${MmAlertSender} --channel=Alerts-CVTT"
MmAlertSender="${MmAlertSender} --log_level=ERROR"

Hosts=
Hosts="${Hosts} cloud11.cvtt.vpn"
Hosts="${Hosts} cloud14.cvtt.vpn"
Hosts="${Hosts} cloud15.cvtt.vpn"
Hosts="${Hosts} cloud16.cvtt.vpn"
Hosts="${Hosts} cloud17.cvtt.vpn"
Hosts="${Hosts} cloud19.cvtt.vpn"
Hosts="${Hosts} cloudstore.cvtt.vpn"

Hosts="${Hosts} cvttdata.cvtt.vpn"
Hosts="${Hosts} cryptoval1.cvtt.vpn"
Hosts="${Hosts} cryptoval2.cvtt.vpn"
Hosts="${Hosts} cryptoval3.cvtt.vpn"

Hosts="${Hosts} homestore.cvtt.vpn"
Hosts="${Hosts} nsbackup.cvtt.vpn"
Hosts="${Hosts} dtvmhost.cvtt.vpn"
Hosts="${Hosts} ops-server.cvtt.vpn"



function space_alert() {
    ALERT_USAGE=75%
    for ln in "${Measurements[@]}"
    do
        IFS=$' '; args=($ln); unset IFS
        host=${args[0]}
        fs=${args[1]}
        space_used=${args[2]}
        if [ ${space_used%?} -ge ${ALERT_USAGE%?} ]; then
            echo ":red_circle: Filesystem **${host}:${fs}** is using **${space_used}** :red_circle:"
        fi
    done
}

function storage_check() {

    echo "## :card_file_box: STORAGE HEALTH CHECK"
    echo
    echo "| host | filesystem | usage |"
    echo "| --- | --- | --- |"
    for host in ${Hosts}
    do
        Cmd="ssh $host"
        Cmd="${Cmd} eval \"df -hTl"
        Cmd="${Cmd} -x squashfs"
        Cmd="${Cmd} | grep -v tmpfs"
        Cmd="${Cmd} | grep -v Filesystem\""

        IFS=$'\n' ; lines=$(eval ${Cmd})
        for ln in $lines
        do
            IFS=$' '; args=($ln); unset IFS
            echo "| **${host}** | ***${args[6]}*** | *${args[5]}* |"
            Measurements+=("${host} ${args[6]} ${args[5]}")
        done
        unset IFS
        echo "| | | |"
    done
}

Measurements=()
tmpfile=$(mktemp)
storage_check > ${tmpfile}
cat ${tmpfile} | ${MmStatusSender}

tmpfile=$(mktemp)
space_alert > ${tmpfile}
cat ${tmpfile}
if [ -s ${tmpfile} ]
then
    (echo "### :card_file_box: STORAGE ALERTS" && cat ${tmpfile}) | ${MmAlertSender}
else
    echo File ${tmpfile} is empty
fi
rm ${tmpfile}