#!/bin/sh

process_doc ()
{
echo Doc: "===> $1"
numpages=$(ls $1/*.png | wc -l)
#  echo $numpages
  if [ ! -f "$1/metadata.xml" ]; then
    echo Doc: "======> $1" "xml mancante"
  fi
  echo "<PagedDocument>" > $1/${1##/*/}.item
  for npp in $(ls $1/*.png); do
    temp1=${npp##/*/}
    temp2=${temp1%%.*}
    if [ $temp2 != ${1##/*/} ]; then 
      echo Errore: doc $1: file png non corrisponde a nome dir doc
      rm  $1/${1##/*/}.item
      return
    fi   
    temp3=${temp1%%.png}
    np=${temp3##*.}
    echo "  <Page pagenum=\"$np\" imgfile=\"${1##/*/}.$np.png\" txtfile=\"\"/>" >> $1/${1##/*/}.item
  done
  echo "</PagedDocument>" >> $1/${1##/*/}.item

#  if [ ! -f "$1/metadata.xml" ]; then
#    echo Doc: "======> $1" "xml mancante"
#    rm $1/${1##/*/}.item
#  fi

#cat $1/${1##/*/}.item

}

is_folder ()
{
#  echo "IF"
  [ -d "$1" ] && [ -d $(find $1/* -prune | head -1) ]
  es=$?
  return $es
}

is_document ()
{
# echo "ID"
 [ -d "$1" ] && [ $(ls $1 | grep png$ | wc -l) -gt 0 ]
 es=$?
 return $es
}

process_dir ()
{
echo ".. $1"
  for i in $(find $1/* -prune ); do
    if is_folder $i ; then
      process_dir $i
    elif is_document $i; then
      process_doc $i
    else
      echo "Errore: $i ne' folder ne' doc"
    fi
  done
}

process_dir $(pwd)