#!/bin/bash
#Aero

if [ $# == 0 ]
    then 
        echo "Keine Dateien angegeben!"
    else
        echo "Starte.."
        z=0
        h=0
        w=0
        i=0
        for i in $*
        do
            z=`expr $z + 1`
            FILE=$i
            WIDTH=$(identify -format %w $FILE)
            HEIGHT=$(identify -format %h $FILE)
        
            if [ $z == 1 ]
                then
                    echo "Bearbeite $i..."
                    convert "${FILE}" -flip unten.png
                    convert  xc:"#9E9E9E" -size "${WIDTH}"x512 xc:black -size "${WIDTH}"x128 gradient:"#9E9E9E"-black +swap -append overlap.png
                    composite overlap.png unten.png -compose CopyOpacity unten.png
                    convert "${FILE}" unten.png -extent $((${WIDTH}))x$(($HEIGHT+128)) -background black -geometry +0+$(($HEIGHT)) -composite fertig.png
                else
                    echo "Bearbeite $i..."            
                    convert "${FILE}" -flip unten.png
                    convert  xc:"#9E9E9E" -size "${WIDTH}"x512 xc:black -size "${WIDTH}"x128 gradient:"#9E9E9E"-black +swap -append overlap.png
                    composite overlap.png unten.png -compose CopyOpacity unten.png
                    convert "${FILE}" unten.png -extent $((${WIDTH}))x$(($HEIGHT+128)) -background black -geometry +0+$(($HEIGHT)) -composite "${FILE}"
                    
                    WIDTH=$(identify -format %w fertig.png)
                    HEIGHT=$(identify -format %h fertig.png)
                    h=`expr $h + 50`
                    w=`expr $w + 100`
                
                    convert fertig.png "${FILE}" -extent $(($WIDTH+100))x$(($HEIGHT+50)) -background black -geometry +$(($w))+$(($h)) -composite fertig.png
            fi

        done

#cleanup
rm overlap.png unten.png hinten.png
echo "Ergebnis in fertig.png gespeichert."
fi