#!/bin/sh

function timestamp() {
    date +"%Y%m%d%H%M%S"
}

XDG_CACHE_HOME=${XDG_CACHE_HOME:-$HOME/.cache}

mountpoint="$XDG_CACHE_HOME/btfs-$(timestamp)"
[ ! -d "$mountpoint" ] && mkdir "$mountpoint"

[ -z "$1" ] && printf "%s [magnet|*.torrent]\n" "$0" && exit 1

printf "Mounting %s to %s\n" "$1" "$mountpoint"
btfs "$1" "${mountpoint}"
btfs_status=$?
if [ $btfs_status != 0 ]; then
    printf "Failed to mount torrent: %s\n" "$1"
    exit $btfs_status
fi
while true; do
    movie_dir_size=$(du -hs "$mountpoint"|awk '{print $1}')
    printf "movie_dir_size: %s\n" "$movie_dir_size"
    if [ "$movie_dir_size" != '4.0K' ] && [ "$movie_dir_size" != "0" ]; then
        break;
    else
        sleep 5;
    fi
done

printf "Locating the largest file...\n"
movie="$(find "$mountpoint" -type f -exec du -hs '{}' +|sort -rh|grep -vi sample|head -n1| \
	awk '{$1=""; print $0}')"
movie=$(echo $movie|xargs)
[ -z "$movie" ] && printf "Could not locate the movie!\n" && exit 1

printf "Playing: %s\n" "$movie"
#smplayer -fullscreen "$movie" 1>/dev/null
mpv --fs --volume=100 "$movie" # 1>/dev/null
#vlc "$movie" 1>/dev/null
#kodi "$movie" 1>/dev/null
printf "Unmounting: %s\n" "$mountpoint"
fusermount -u "$mountpoint"
printf "Removing dir: %s\n" "$mountpoint"
rmdir "$mountpoint"