#!/bin/bash

source ~/docker/.backup_conf/conf

rm *.backup.tar &> /dev/null

for dir in */; do
    cd $dir
    docker compose down
    echo "Creating tarball for container ${dir%"/"}.."
    eval tar $tar_arguments -cvf "$backup_tar_tmp_dir/${dir%"/"}.backup.tar" *
    echo "Done creating tarball for ${dir%"/"}"
    echo "Updating restic repos for ${dir%"/"}.."
    if [[ ! " ${restic_compose_stacks_to_skip[*]} " =~ " ${dir%"/"} " ]]; then
        for repo in ${!restic_repository_strings[@]}; do
            echo ${restic_repository_encryption_passwords[$repo]} | eval restic -r ${restic_repository_strings[$repo]} backup ../$dir ${restic_arguments[$repo]} --tag $date
        done
    fi
    echo "Updated restic repos for ${dir%"/"}!"
    docker compose up -d
    cd $compose_stack_location
done
cd $backup_tar_tmp_dir

echo "Starting compressing.."
tar -cv -I"$compression_options" -f "$date.backup.tar.zst" *.backup.tar
rm *.backup.tar &> /dev/null
echo "Compressed all tarballs!"
echo "Encrypting backup.."
echo $gpg_encryption_password | gpg --batch --yes --passphrase-fd 0 -c $date.backup.tar.zst
echo "Backup encrypted!"

echo "Uploading Backup.."
for ssh_server in ${!ssh_backup_user[@]}; do
    sudo -u $local_backup_ssh_user mscp $date.backup.tar.zst.gpg ${ssh_backup_user[$ssh_server]}@${ssh_backup_ip[$ssh_server]}:${ssh_backup_path[$ssh_server]} -n $ssh_backup_concurrency -P ${ssh_backup_port[$ssh_server]}
done
echo "Backup uploaded!"
cd $backup_tar_tmp_dir

rm *.backup.tar.zst.gpg &> /dev/null
echo "Copying local tar backups.."
for dir in ${local_backup_tar_save_dir[@]}; do
    cd $dir
    ls -1 *.backup.tar.zst | sort -r | tail -n +$tar_backups_to_keep | xargs rm &> /dev/null
    cd $backup_tar_tmp_dir
    cp *.backup.tar.zst $dir
done
cd $backup_tar_tmp_dir

echo "Copyied local tar backups!"
echo "Cleaning up.."
rm *.backup.tar.zst *.backup.tar.zst.gpg &> /dev/null
for repo in ${!restic_repository_strings[@]}; do
    echo ${restic_repository_encryption_passwords[$repo]} | eval restic -r ${restic_repository_strings[$repo]} forget --prune ${restic_snapshots_to_keep[$repo]}
done
unset GOMAXPROCS

echo "All done! Exiting.."