#!/bin/sh

url_1337x="https://1337x.to"
menu="bemenu"

die()
{
	: "${1:?}"

	command -v notify-send > /dev/null &&
		notify-send "󰎁  1337x" "$1"

	printf "\033[31;1merr: %b\033[0m\n" "$1"
	exit "${2:-1}"
}

dep_check()
{
	: "${1:?}"

	for dep; do
		command -v "$dep" 1>/dev/null ||
			die "${dep} not found, please install it" 127
	done

	unset dep
}

get_1337x()
{
	: "${1:?}"
	dep_check curl

	curl --silent --compressed "${url_1337x}/$1"
}

search_1337x()
{
	: "${1:?}"

	get_1337x "search/$(echo "$1" | tr ' ' '+')/1/"
}

magnet_1337x()
{
	: "${1:?}"

	get_1337x "torrent/${1}/" |
		grep -om1 'magnet:?xt=urn:btih:.*announce'
}

parse_table()
{
	intbody=
	link=
	sneed=
	leech=
	size=

	while read -r line; do
		case "$line" in
		"<tbody>")
			intbody=1
			;;
		"</tbody>")
			exit 0
			;;
		"<td class=\"coll-1 name"*)
			line=${line%/\">*}
			link=${line##*href=\"/}
			;;
		"<td class=\"coll-2 seeds"*)
			sneed=${line#*>}
			sneed=${sneed%%<*}
			;;
		"<td class=\"coll-3 leeches"*)
			leech=${line#*>}
			leech=${leech%%<*}
			;;
		"<td class=\"coll-4 size"*)
			size=${line#*>}
			size=${size%%<*}
			;;
		"</tr>")
			[ "$intbody" = 1 ] &&
				printf "%4d   %4d   %8s  %s\n" \
					"$sneed" "$leech" "$size" \
					"$(echo "${link##*/}" | tr '-' ' ')"
			;;
		esac
	done | "$menu" -p "󰎁 " -il 20 | sed 's/.*  //g' | tr ' ' '-'

	unset intbody name link sneed leech size
}

main()
{
	query=
	data=
	name=
	page=
	magnet=

	[ -z "$WAYLAND_DISPLAY" ] &&
		menu="dmenu"
	if [ "$#" -gt 0 ] && [ "$1" = "-o" ]; then
		out=true
		shift
	fi
	dep_check "$menu"


	query="${*:-$(printf "" | "$menu" -p "󱇒 ")}"
	[ -z "$query" ] &&
		exit 1

	data="$(search_1337x "$query")"
	[ -z "$data" ] &&
		die "search failed, check your internet connection"

	name="$(echo "$data" | parse_table)"
	[ -z "$name" ] &&
		exit 1

	page="$(echo "$data" | grep -om1 "[0-9]*/${name}")"
	magnet="$(magnet_1337x "$page")"
	[ -z "$magnet" ] &&
		die "magnet fetch failed, contact the maintainer"

	if [ "$out" = true ]; then
		echo "$magnet"
	else
		dep_check "pirowatch"
		pirowatch "$magnet"
	fi
}

main "$@"