#!/usr/bin/env bash

VERS='1.02052019'
NODE_HOSTS=10.5.10.51,10.5.10.52,10.5.10.53
NODE_SERVICES=mysql,nginx,gitea,haproxy,keepalived,maxscale
CERT_DAEMON='/usr/bin/certbot'
FOLDER=/opt/idssys/nodemgmt
SCRIPT=${FOLDER}/nodemgmt-scripts.sh

IFS=,
NODE_HOSTS=(${NODE_HOSTS})
NODE_SERVICES=(${NODE_SERVICES})
LOCAL_SERVICES=(${LOCAL_SERVICES})
unset IFS

declare -A NM_SERVICES
NM_SERVICES['mysql']='MySQL'
NM_SERVICES['nginx']='NGINX'
NM_SERVICES['gogs']='Gogs'
NM_SERVICES['gitea']='Gitea'
NM_SERVICES['haproxy']='HAProxy'
NM_SERVICES['keepalived']='Keepalived'
NM_SERVICES['maxscale']='MaxScale'
NM_SERVICES['cmon']='CC-Controller'
NM_SERVICES['cmon-events']='CC-Events Manager'
NM_SERVICES['cmon-cloud']='CC-Cloud Daemon'

declare -A NM_SRVCOPTS
NM_SRVCOPTS['start']='Start'
NM_SRVCOPTS['stop']='Stopp'
NM_SRVCOPTS['restart']='Restart'
NM_SRVCOPTS['reload']='Reload'
NM_SRVCOPTS['enable']='Enabl'
NM_SRVCOPTS['disable']='Disabl'

NM_SRVCOPT=(start stop restart reload enable disable)

DISP_HEADER(){
	if [ "$1" = true ]; then
		clear
	fi
	echo ""
	echo -e "${idsCL[Yellow]} NodeMgmt - Galera/NGINX Node Management${idsCL[Default]}  ${idsCL[DarkGray]}(ver-${VERS})${idsCL[Default]}"
	DIVIDER
	if [ "$2" = true ]; then
		echo -e "Node hostname:		${idsST[Bold]}${idsCL[LightCyan]}${NODE_HOSTNAME}${idsCL[Default]}${idsST[Reset]}"
		if [ -z ${LOCAL_SERVICES+x} ]; then SERVICES=$( IFS=$','; echo "${NODE_SERVICES[*]}" )
			else SERVICES=$( IFS=$','; echo "${LOCAL_SERVICES[*]}" )
		fi
		IFS=,; SERVICES2=(${SERVICES}); unset IFS
		for srvc in "${SERVICES2[@]}"; do
			if [[ "mysql,nginx,gitea,haproxy,keepalived,maxscale" = *"${srvc}"* ]]; then spc="	"; else spc=""; fi
			echo -en "${NM_SERVICES[${srvc}]}   	$spc"
			if [ $(pgrep ${srvc} | wc -l) -gt "0" ]; then
				echo -e "${idsCL[Green]}Running${idsCL[Default]}"
				else echo -e "${idsCL[Red]}Not Running${idsCL[Default]}"
			fi
		done
		DIVIDER
	fi
	echo ""
}

DIVIDER(){
	echo -e "${idsCL[Yellow]}-------------------------------------------------------------${idsCL[Default]}"
	if [ "$1" = true ]; then
		echo ""
	fi
}

CERT-CHECK(){
	TARGET="mysite.example.net"; 
	RECIPIENT="hostmaster@mysite.example.net";
	DAYS=7;
	echo "checking if $TARGET expires in less than $DAYS days";
	expirationdate=$(date -d "$(: | openssl s_client -connect $TARGET:443 -servername $TARGET 2>/dev/null \
	                              | openssl x509 -text \
	                              | grep 'Not After' \
	                              |awk '{print $4,$5,$7}')" '+%s'); 
	in7days=$(($(date +%s) + (86400*$DAYS)));
	if [ $in7days -gt $expirationdate ]; then
	    echo "KO - Certificate for $TARGET expires in less than $DAYS days, on $(date -d @$expirationdate '+%Y-%m-%d')" \
	    | mail -s "Certificate expiration warning for $TARGET" $RECIPIENT ;
	else
	    echo "OK - Certificate expires on $expirationdate";
	fi
}