#!/bin/bash

# Source the configuration file
. config.sh  # Adjust the path as necessary

# Check if the script is run as root
if [ "$(whoami)" != 'root' ]; then
  echo "Permission Denied"
  exit
fi

# Prepare the log file and start tailing it
touch "$dst/next.log"
tail -n0 --pid="$$" -f "$dst/next.log" &

# Loop until rsync is successful or the user decides to abort
while :; do
  if rsync "${args[@]}" -av --link-dest="$dst/current" "$src/" "$dst/next" 2>&1 >> "$dst/next.log"; then
    echo "Backup successful."
    break
  else
    echo "Backup failed."
    # Ask the user for the next step
    echo "Do you want to retry, abort, or continue? [r/a/c]"
    read -r response
    case $response in
      r|R)
        echo "Retrying..."
        ;;
      a|A)
        echo "Aborting."
        exit 1
        ;;
      c|C)
        echo "Continuing..."
        break
        ;;
      *)
        echo "Invalid response. Please answer r, a, or c."
        ;;
    esac
  fi
done

# Success, clean up
date=$(date "+%Y-%m-%dT%H:%M:%S")
mv "$dst/next" "$dst/$date"
mv "$dst/next.log" "$dst/$date.log"
unlink "$dst/current"
unlink "$dst/current.log"
ln -s "$dst/$date" "$dst/current"
ln -s "$dst/$date.log" "$dst/current.log"