#!/bin/bash
#
#This script will automatically make an encrypted backup to a restic repository as specified with --source
#

helpFunction()
{
   echo ""
   echo "Usage: $0 -i INPUT -c CONFIG_DIR -l LOG_DIR"
   echo -e "\t-i Input folder to create a repository for."
   echo -e "\t-c Location of config directory where the repository, password and uuid files are stored."
   exit 1 # Exit script after printing help
}

while getopts "i:c:l:" opt
do
   case "$opt" in
      i ) INPUT="$OPTARG" ;;
      c ) CONFIG_DIR="$OPTARG" ;;
      ? ) helpFunction ;; # Print helpFunction in case parameter is non-existent
   esac
done

SERVICE=${INPUT##*/}
SERVICE=${SERVICE,,}

PASSWORD=$(tr -dc 'A-Za-z0-9!?%=' < /dev/urandom | head -c 50)
UUID=$(uuidgen)

echo $PASSWORD > $CONFIG_DIR/${SERVICE}_password
echo $UUID > $CONFIG_DIR/${SERVICE}_uuid

echo "Created required backup directories for $INPUT"
echo "Password: $PASSWORD"
echo "UUID: $UUID"
echo "Make sure to note this down in your password manager to be able to decrypt the repositories, and to map the repositories on the external storage"