#!/usr/bin/env bash

italic="\033[3m"
underline="\033[4m"
ita_under="\033[3;4m"
bgd="\033[1;4;31m"
red="\033[1;31m"
bold="\033[1m"
box="\033[1;41m"
reset="\033[0m"

# No distract mode (no user interaction)
[[ $@ =~ "-nodistract" || $@ =~ "-n" ]] && no_distract=true || no_distract=false

command -v fd >/dev/null 2>&1 || { echo -e "${bold}Clean Lightroom backups${reset} require ${bold}fd${reset} but it's not installed.\nRun ${italic}(brew install fd)${reset}\nAborting..." >&2; exit 1; }

echo -e "${bold}+++ Clean Lightroom backups +++${reset}\n"

echo -e "${underline}Preferences:${reset}"

# Dossiers des catalogues Lightroom
lightroom=/Users/bruno/Pictures/Lightroom
echo "Catalog's folder: $lightroom"

# Liste des catalogues Lightroom
catalogs=$(fd -I -t file '^.*.lrcat$' $lightroom)

# Laisser n backup
n=2
echo -e "Keep $n backups..."

echo -e "Backups with extra names like '2022-01-20 0926 MàJ 2021' won't be deleted ...\n"

while IFS= read -r line; do
	l="${line}"
	
	catalog=$(basename "$l")
	echo -e "${bold}$catalog${reset}"
	folder=$(dirname "$l")
	
	if [ -d "$folder/Backups" ]; then

		backup=$(ls -t "$folder/Backups" | grep -v '[[:alpha:]]')
		echo -e "${underline}Availables backup:${reset}"
		echo "$backup"
		nb=$(echo "$backup" | wc -l)
		trash=$(echo "$backup" | tail -n $((nb-$n)))
		
		if [ -n "$trash" ]; then
			while IFS= read -r z; do

				x="$folder/Backups/${z}"
			
				if [ -d "$x" ]; then

					if [ $(ls -A "$x" | wc -l) -ne 0 ]; then
					
						if [ "$no_distract" = false ]; then
							echo -e "${italic}Do you want to delete $x (y/n)?${reset}"
  							read -u 1 answer
 							if [[ $answer = y ]]; then
        						rm -r "$x"
        					fi
        				else
        					echo -e "${italic}Deleting $x ...${reset}"
        					rm -r "$x"
        				fi
        			fi
				fi

			done <<< "$trash"
			
		else
			echo "No backup folder to delete !"
		fi
		
		echo ""
	fi	

done <<< "$catalogs"