#!/bin/bash
# get Amarok cover art of current track and transform into an album stack
# copypasta from http://www.imagemagick.org/Usage/thumbnails/#polaroid
# thanks to eightmillion for completely rewriting the script
# http://ubuntuforums.org/showpost.php?p=8117609&postcount=9846

# Temp directory must be full path.
tempdir="$HOME/conky/cover/"
tempfile="${tempdir}nowplaying"

[ -d "$tempdir" ] || mkdir -p "$tempdir"  #test if $tempdir exists, if not create it.
[ -e "$tempfile" ] || touch "$tempfile"

cover="$(dcop amarok player coverImage)"
[ -z "$cover" ] && exit      #test if $cover was set, if not exit.

hash=$(echo "$cover" | md5sum | cut -d" " -f 1) #Generate hash for current song.

read oldhash < "$tempfile"

if [ "$oldhash" == "$hash" ];then
        :
else
	convert ${cover} -bordercolor white -border 6 -bordercolor grey60 -border 1 -bordercolor none -background none \( -clone 0 -rotate `convert null: -format '%[fx:rand()*20-15]' info:` \) \( -clone 0 -rotate `convert null: -format '%[fx:rand()*20-15]' info:` \) \( -clone 0 -rotate `convert null: -format '%[fx:rand()*20-15]' info:` \) \( -clone 0 -rotate `convert null: -format '%[fx:rand()*20-15]' info:` \) -delete 0 -border 100x80 -gravity center -crop 200x160+0+0 +repage -flatten -trim +repage -background black \( +clone -shadow 60x4+4+4 \) +swap -background none -flatten -resize 150x150 "${tempdir}cover.png"

        echo $hash > "$tempfile"
fi
exit