#!/bin/sh

usage() {
	printf "Usage: %s [url] [filters] [-h|--help|--wget|--httrack]\n\n" $0

	printf "  --wget      Select GNU Wget\n"
	printf "  --httrack   Select httrack to vacuum\n"
	printf "  -h,--help   Show this help\n\n"

	printf "Filters only work with httrack. \`man httrack\` to get help.\n"
}

TOOL=
URL=

for i in $@; do
	if [ "$i" = "-h" -o "$i" = "--help" ]; then
		usage
		exit 0
	elif [ "$i" != "--httrack" -a "$i" != "--wget" ]; then
		URL="$URL $i"
	elif [ "$i" = "--httrack" ]; then
		TOOL=httrack
	elif [ "$i" = "--wget" ]; then
		TOOL=wget
	fi
done

if [ -z "$URL" ]; then
	printf "Example: https://www.example.com +assets.example.com/*\n\n"

	while test -z "$URL"; do
		printf "URL: "
		read URL
	done
fi

if [ -z "$TOOL" ]; then
	while test -z "$TOOL"; do
		printf ""

		printf "Vacuum:\n"
		printf "  [1] httrack\n"
		printf "  [2] wget\n"
		printf "> [1] "
		read TOOL

		if [ -z "$TOOL" ]; then
			TOOL=1
		fi

		if [ "$TOOL" = "1" -o "$TOOL" = "httrack" ]; then
			TOOL=httrack
		elif [ "$TOOL" = "2" -o "$TOOL" = "wget" ]; then
			TOOL=wget
		else
			TOOL=
		fi
	done
fi

if [ "$TOOL" = "httrack" ]; then
	printf "\nCommand:\n\n  httrack %s\n\n" "$URL"
	httrack $URL
elif [ "$TOOL" = "wget" ]; then
	printf "\nCommand:\n\n  wget --progress=bar -E -r -k -np --no-check-certificate --user-agent=Firefox \"%s\"\n\n" $URL
	wget --progress=bar -E -r -k -np --no-check-certificate --user-agent=Firefox $URL
fi