#!/bin/bash

# Liste de choix
range=$(zenity --list \
        --title="Choisir l'intensité" \
        --column="Range" --column="Description" \
        --width=200 \
        --height=300 \
        --hide-column=1 \
        "0.5" "Très Faible" \
        "1.0" "Faible" \
        "1.5" "Moyen" \
        "2.0" "Large" )

[ $? -eq 1 ] && exit 0


# Enfuse
# $1 - Image originale
# $2 - resultat
Enfuse()
{

    picbase=`echo "$1" | sed 's/\.\w*$//'`
    enfusedlist=""

    if [ ! -f "$picbase.ufraw" ]
    then
        echo "# Image $((current)) : exposition nominale"
        ufraw-batch --exposure=auto --create-id=only $1
    fi    
    
    echo "# Image $((current+1)) : calcule des expositions virtuelles"
    expobase=$(grep "<Exposure>" $picbase.ufraw | cut -f 2 -d ">" | cut -f 1 -d "<")
    expomin=$(echo "scale=2; x=$expobase-$range; if (x < -3) print -3.0 else print x" | bc)
    expomax=$(echo "scale=2; x=$expobase+$range; if (x > 3) print 3.0 else print x" | bc)
    
    for nb in "$expomin" "$expobase" "$expomax"
    do
    
    nb=$(echo $nb | sed "s/^\./0\./")
    nb=$(echo $nb | sed "s/\-\./\-0\./")
    echo "# Image $current : calcul de $nb E.V."
        
	ufraw-batch --exposure=${nb} --restore=hsv --clip=film --out-type=tiff --out-depth=8 --output=${picbase}${nb}.tif --create-id=no $picbase.ufraw
        
	enfusedlist=`echo "$enfusedlist" ${picbase}${nb}.tif`
    done

    echo "# Image $current : fusion des images ..."
    enfuse -o tmp.tif $enfusedlist
    rm -f $enfusedlist

    echo "# Image $current : Suppression du canal alpha"
    convert -alpha off tmp.tif $2  
    
    rm -f tmp.tif
}

#fonction principale
current=1

while [ $# -gt 0 ]; do
    picture=$1
    
    echo "# Image $((current)) : $picture"
    result=`echo "$picture" | sed 's/\.\w*$/-HDR.tif/'`
    Enfuse $picture $result

    current=$((current+1))    

    shift
done | zenity --progress \
  --title="EnfuseHDR" \
  --text="Image..." \
  --auto-close \
  --percentage=0