#!/bin/bash
# run this on the backup directory

# TODO: gérer les extensions connues. voir etoys? + autre (vu dans unknown/preview)

datafile="data"
mime="mime_type"
home=$PWD
err_m="$home/err_mime.log"
err_d="$home/err_data.log"
gnomedir="gnome"



function err_m {
	echo $1
	echo $1 >> $err_m
}

function err_d {
	echo $1
	echo $1 >> $err_d
}

for folder in `ls */ -d`
do
	cd $folder
	# datastore

	tar xjf *.bz2
	if [ $? -eq 0 ]
	then
		out="$home/out/$folder"
		mkdir -p $out/datastore
		[[ -f home/olpc/.sugar/default/datastore/nickname ]] && cp home/olpc/.sugar/default/datastore/nickname $out/datastore
		int=1

		rm $datafile 2>/dev/null
		find $1 -name data >> $datafile

		for path in `cat $datafile`
		do
			cd ${path%\/data}/metadata
			if [ -f $mime ]
			then
					ext="unknown"
					size=0

					grep -q application/pdf $mime && ext="pdf"
					grep -q application/x-fototoon-activity $mime && ext="fototoon"
					grep -q application/x-memorize-project $mime && ext="memorize"
					grep -q application/x-physics-activity $mime && ext="physics"
					grep -q application/x-turtle-art $mime && ext="turtle"
					grep -q ogg $mime && ext="ogg"
					grep -q image/jpeg $mime && ext="jpeg"
					grep -q image/png $mime && ext="png"
					grep -q text/plain $mime && ext="txt"
					grep -q text/x-python $mime && ext="py"
					grep -q opendocument $mime && ext="odf"
					grep -q application/epub $mime && ext="epub"
					grep -q application/rtf $mime && ext="rtf"
					grep -q mpeg $mime && ext="mpeg"
					grep -q html $mime && ext="html"

					if [ -f "preview" ]
					then
						size=`ls -sk preview | awk '{ print $1 }'`
					fi

					if [ $ext == "unknown" ]
					then
						err_m "Format unknown: $out"
						[[ -d $out/datastore/unknown ]] || mkdir $out/datastore/unknown
						[[ $size -gt 0 ]] && cp -a preview $out/datastore/unknown/$int.$ext.preview.png
					else
						cp -a ../data $out/datastore/$int.$ext
						[[ $size -gt 0 ]] && cp -a preview $out/datastore/$int.$ext.preview.png
					fi
					int=$((int + 1))
			else
				err_d "mime type file does not exists: $PWD"
				if [ ! -f ../data ]
				then
					err_d "data file does not exists: $PWD"
				fi
			fi
			cd $home/$folder
		done
	else
		echo "$PWD is not a backup directory"
		continue
	fi

	rm -rf ./home

	# GNOME directory
	for f in `ls -d $home/$folder/$gnomedir/*/`
	do
		size=`du -skb  $f | awk '{ print $1 }'`
		[[ $size -lt 4097 ]] && continue
		mkdir -p $out/$gnomedir
		cp -aR ${f%\/} $out/$gnomedir

	done
	cd $home
done
echo "Done"