{ config, lib, pkgs, ... }:
let
  ifExists = groups: builtins.filter (group: builtins.hasAttr group config.users.groups) groups;
  rsync-backups = pkgs.writeScriptBin "rsync-backups" ''
#!${pkgs.stdenv.shell}
# Send the gotify notification:

GOTIFY_TOKEN=`cat /var/run/secrets/gotify_token | head -n 1`
payload="{\"message\": \"Backup has started\nDate: `date`\", \"priority\": 2,\"title\": \"backups-rpi4:  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"

drive1=`lsblk -o NAME,SERIAL | grep -v crypt | grep 9RGHYP8C | awk {'print $1'}`
drive2=`lsblk -o NAME,SERIAL | grep -v crypt | grep 9RGXW93C | awk {'print $1'}`
drive3=`lsblk -o NAME,SERIAL | grep -v crypt | grep 5QH05G3F | awk {'print $1'}`

echo "Drive 1:  $drive1"
echo "Drive 2:  $drive2"
echo "Drive 3:  $drive3"

echo "Checking if the NAS is mounted on nuc-docker01:"
check=$(ssh root@nuc-docker01 df -h | grep Storage | wc -l)
if [[ $check != 3 ]] ; then  
	payload="{\"message\": \"Backup stopped.  nuc-docker01 does not have 3 mounts in Storage\nDate: `date`\", \"priority\": 2,\"title\": \"backups-rpi4:  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`"

if [[ `ps aux | grep rsync | grep -v grep | grep -v rsync-backups` ]] ; then 
	echo -e "================================================================================"
	echo -e "rsync still running.  Exiting...."
	echo -e "======= Time complete:  `date`"
	exit
fi

echo -e "rsync -avr --delete --exclude=luks.img /Storage/Backups/Manual/Computers/ /mnt/$drive1/Backups/Manual/Computers/"
rsync -avr --delete --exclude=luks.img root@nuc-docker01:/Storage/Backups/Manual/Computers/ /mnt/$drive1/Backups/Manual/Computers/

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Backups/Backblaze/ /mnt/$drive1/Backups/Backblaze/"
rsync -avr --delete root@nuc-docker01:/Storage/Backups/Backblaze/ /mnt/$drive1/Backups/Backblaze/

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Backups/Logs/ /mnt/$drive1/Backups/Backblaze/"
rsync -avr --delete root@nuc-docker01:/Storage/Backups/Logs/ /mnt/$drive1/Backups/Logs/

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Backups/Docker/ /mnt/$drive1/Backups/Docker/"
rsync -avr --delete root@nuc-docker01:/Storage/Backups/Docker/ /mnt/$drive1/Backups/Docker/

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Video/Pictures/ /mnt/$drive1/Pictures/"
rsync -avr --delete root@nuc-docker01:/Storage/Video/Pictures/ /mnt/$drive1/Pictures/

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Video/Books/ /mnt/$drive1/Books/"
rsync -avr --delete root@nuc-docker01:/Storage/Video/Books/ /mnt/$drive1/Books/

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Video/Music/ /mnt/$drive1/Music/"
rsync -avr --delete root@nuc-docker01:/Storage/Video/Music/ /mnt/$drive1/Music/

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete --exclude=Downloads/ /Storage/Data/ /mnt/$drive1/Data/" 
rsync -avr --delete --exclude=Downloads/ root@nuc-docker01:/Storage/Data/ /mnt/$drive1/Data/

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Video/Movies/ /mnt/$drive2/Movies/" 
rsync -avr --delete root@nuc-docker01:/Storage/Video/Movies/ /mnt/$drive2/Movies/ 

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Video/TV_Shows/[0-9]* /mnt/$drive1/TV_Shows/"
rsync -avr --delete root@nuc-docker01:/Storage/Video/TV_Shows/[0-9]* /mnt/$drive1/TV_Shows/
 
echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Video/TV_Shows/[A-K]* /mnt/$drive1/TV_Shows/"
rsync -avr --delete root@nuc-docker01:/Storage/Video/TV_Shows/[A-E]* /mnt/$drive1/TV_Shows/
 
echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Video/TV_Shows/[L-M]* /mnt/$drive2/TV_Shows/"
rsync -avr --delete root@nuc-docker01:/Storage/Video/TV_Shows/[F-M]* /mnt/$drive2/TV_Shows/
 
echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Video/TV_Shows/[N-Z]* /mnt/$drive3/TV_Shows/"
rsync -avr --delete root@nuc-docker01:/Storage/Video/TV_Shows/[N-Z]* /mnt/$drive3/TV_Shows/
 
echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "rsync -avr --delete /Storage/Video/YouTube /mnt/$drive3/YouTube/"
rsync -avr --delete root@nuc-docker01:/Storage/Video/YouTube/ /mnt/$drive3/YouTube/

echo -e "================================================================================"
echo -e "======= Time:  `date`"
echo -e "======= Time complete:  `date`"

echo "Sending completion message"
payload="{\"message\": \"Backup completed\nDate: `date`\n`df -h | grep sda`\n`df -h | grep sdb`\n`df -h | grep sdc`\", \"priority\": 2,\"title\": \"backups-rpi4:  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"

'';
in
{
  environment.systemPackages = [ rsync-backups ];  
  
  # Set up the secret for the password:
  sops.secrets."gotify_token" = {
    owner = "root";
    sopsFile = ../../../secrets/backups-rpi4.yaml;
  };
}