#!/bin/bash

umask 002

copy_all_size="300"	# keep exif for images larger than this size

# read command line opts
while :
do
        for arg in "$@"
        do
                case $arg in
                        -d|--days)
                                mins=$(( $2 * 1440 ))
                                shift 2
                                ;;
                        -h|--hours)
                                mins=$(( $2 * 60 ))
                                shift 2
                                ;;
                        -m|--mins)
                                mins=$2
                                shift 2
                                ;;
                        -*)
                                echo "error: $arg parameter unknown."
                                exit 1
                                ;;
                        *)	args[$(( i++ ))]="$1"
				shift 1
                                ;;
                esac
                continue 2
        done
        break
done

# reset $1, $2, etc. with left-over paramters
set -- "${args[@]}"

[ -n "$mins" ] && opts="$opts -mmin -$mins"

for dir in "$@"
do
	[ -d "$dir" -o -f "$dir" ] && \
		find "$dir" $opts -regextype posix-egrep -regex '^.*\.(jpg|png|gif)$' \
			-print 2>/dev/null | while read img
		do
			# get the image width and height as variables
			eval "`/usr/local/bin/exif-resolution.sh -v \"$img\"`"
			[ "$W" -gt "$H" ] && size="$W" || size="$H"

			# keep exif for images larger than $copy_all_size
			[ "$size" -gt "$copy_all_size" ] && copy="all" || copy="none"

			# exceptions
			case "$img" in
				*/wordpress/wp-content/themes/*) copy="none" ;;
				*/wordpress/wp-content/plugins/*) copy="none" ;;
			esac

			echo -e "$img (${W}x${H}, copy $copy) \c"
			/usr/local/bin/wesley.pl --copy="$copy" "$img" 2>/dev/null | grep 'Total bytes saved:' | xargs
		done
done