#!/bin/bash
LOGFILE_RECENT="/var/log/scw-log/logfile-recent.log"
LOGFILE="/var/log/scw-log/logfile.log"
DUPLICITY=/usr/local/bin/duplicity
log () {
	    date=`date +%Y-%m-%d`
	    hour=`date +%H:%M:%S`
	    echo "$date $hour $*" >> ${LOGFILE_RECENT}
}

rotate_log() {
	cat ${LOGFILE_RECENT} >> ${LOGFILE}
	status="OK"
	if [ $(grep "Errors 0" ${LOGFILE_RECENT} |wc -l) -eq 0 ]; then
		status="ALERTE FAIL !!!"
	fi
	cat ${LOGFILE_RECENT} |mail -s "${status} | Backup ${SCW_BUCKET} `date +%Y-%m-%d`" valczebackup@gmail.com 
}
USER=$(whoami)
currently_backuping=$(ps -ef | grep duplicity  | grep python |grep ${USER}  | wc -l)

if [ $currently_backuping -eq 0 ]; then
	if [ ${#} -ne 1 ]; then
		log ">>> Il manque un paramètre ${0} : <CONFIGFILE>"
		rotate_log
		exit 1
	fi
	if [ ! -f ${1} ]; then
		log ">>> Le paramètre n'est pas un fichier ${USER} : ${1}"
		rotate_log
		exit 1
	fi
	source "$1"
	echo > ${LOGFILE_RECENT}
	log ">>> removing old backups"
	${DUPLICITY} remove-older-than --s3-endpoint-url ${SCW_ENDPOINT_URL} --s3-region-name ${SCW_REGION} ${KEEP_BACKUP_TIME} ${SCW_BUCKET} --force >> ${LOGFILE_RECENT} 2>&1
       	log ">>> creating and uploading backup to c14 cold storage ${SOURCE}"
     	${DUPLICITY} \
	    	incr --full-if-older-than ${FULL_BACKUP_TIME} \
		--s3-endpoint-url ${SCW_ENDPOINT_URL} \
		--s3-region-name ${SCW_REGION} \ 
	    	--asynchronous-upload \
	    	--s3-use-glacier \
	    	--encrypt-key=${GPG_FINGERPRINT} \
	    	--sign-key=${GPG_FINGERPRINT} \
		${SOURCE} ${SCW_BUCKET} >> ${LOGFILE_RECENT} 2>&1
	rotate_log
else
	log ">>> Duplicity déjà en cours de route sur cette utilisateur ${USER}"	
	rotate_log
fi