BACKUP_NAME="rsync-data-vol"
GOTIFY_TOKEN=`cat /var/run/secrets/gotify_token | head -n 1`

echo "Sending start message"
payload="{\"message\": \"$BACKUP_NAME Backup has started\nDate: `date`\", \"priority\": 2,\"title\": \"backups-rpi4:  $BACKUP_NAME Backup Started\"}"
curl -X "POST" "https://gotify.sysctl.io/message" -H "accept: application/json" -H "Content-Type: application/json" -H "X-Gotify-Key:  $GOTIFY_TOKEN" -d "$payload"

drivea=`lsblk -o NAME,SERIAL | grep -v luks | grep 9RGXW93C | awk {'print $1'}`
driveb=`lsblk -o NAME,SERIAL | grep -v luks | grep 9RGHYP8C | awk {'print $1'}`
drivec=`lsblk -o NAME,SERIAL | grep -v luks | grep 5QH05G3F | awk {'print $1'}`

mounta=`mount -l | grep $drivea`; mounteda=`echo $?`
mountb=`mount -l | grep $driveb`; mountedb=`echo $?`
mountc=`mount -l | grep $drivec`; mountedc=`echo $?`

echo "Drive status"
echo "Drive 2:  $drivea / $mounta / $mounteda"
echo "Drive 1:  $driveb / $mountb / $mountedb"
echo "Drive 3:  $drivec / $mountc / $mountedc"

# If any drive isn't found, exit:
if [[ $mounteda != 0 ]] || [[ $mountedb != 0 ]] || [[ $mountedc != 0 ]] ; then
  echo "One or more drives is not mounted.  Exiting"
  payload="{\"message\": \"$BACKUP_NAME Backup stopped.  One or more local drives are not mounted.\nDate: `date`\", \"priority\": 2,\"title\": \"backups-rpi4:  $BACKUP_NAME Backup Stopped\"}"
  curl -X "POST" "https://gotify.sysctl.io/message" -H "accept: application/json" -H "Content-Type: application/json" -H "X-Gotify-Key:  $GOTIFY_TOKEN" -d "$payload"
  exit
fi

# If an old backup is still running, don't continue
count=$(ps aux | grep $BACKUP_NAME | grep -v grep | wc -l)
if [[ $count -ge 4 ]] ; then 
  echo -e "$BACKUP_NAME rsync still running.  Exiting...."

  echo "Output:  "
  ps aux | grep $BACKUP_NAME | grep -v grep 
  ps aux | grep $BACKUP_NAME | grep -v grep | wc -l 

  payload="{\"message\": \"$BACKUP_NAME stopped.  $BACKUP_NAME is still running.\nDate: `date`\", \"priority\": 2,\"title\": \"backups-rpi4:  $BACKUP_NAME Backup Stopped\"}"
  curl -X "POST" "https://gotify.sysctl.io/message" -H "accept: application/json" -H "Content-Type: application/json" -H "X-Gotify-Key:  $GOTIFY_TOKEN" -d "$payload"
  exit
fi

# Check if the Synology is mounted
check=$(ssh root@nuc-server df -h | grep 100.64.0.2 | wc -l)
if [[ $check != 1 ]] ; then  
  echo "Synology is not mounted on nuc-server:  check returned $check"
  payload="{\"message\": \"Backup stopped.  Synology isn't mounted\nDate: `date`\", \"priority\": 2,\"title\": \"backups-rpi4:  $BACKUP_NAME Backup Stopped\"}"
  curl -X "POST" "https://gotify.sysctl.io/message" -H "accept: application/json" -H "Content-Type: application/json" -H "X-Gotify-Key:  $GOTIFY_TOKEN" -d "$payload"
  exit
fi

echo -e "======= Time started :  `date`"
echo -e "rsync -avr --delete --exclude=Downloads/ --exclude='Docker/sysctl.io' root@nuc-server:/Storage/Data/ /mnt/$drivea/Data/" 
rsync -avr --delete --exclude=Downloads/ --exclude='Docker/sysctl.io' root@nuc-server:/Storage/Data/ /mnt/$drivea/Data/

echo -e "======= Time complete:  `date`"
echo "Sending completion message"
payload="{\"message\": \"Data Vol Backup completed\nDate: `date`\n`df -h | grep sda`\n`df -h | grep sdb`\n`df -h | grep sdc`\", \"priority\": 2,\"title\": \"backups-rpi4:  Data Vol Backup Complete\"}"
curl -X "POST" "https://gotify.sysctl.io/message" -H "accept: application/json" -H "Content-Type: application/json" -H "X-Gotify-Key:  $GOTIFY_TOKEN" -d "$payload"