#/usr/bin/env bash

# Adresar vytvorime, len ak neexistuje.
# Inak mkdir pri viacnasobnom spusteni frfle.
# Rychle a spinave riesenie by bolo 2>/dev/null, ale to umlci aj
# ostatne chyby, to nechceme.

if [ ! -d thumbnails ]; then
	mkdir thumbnails
fi

# Takto to je lepsie ako cez echo

cat << END_HEAD
<html>
<title>
Gallery
</title>
<body>
<h2>Gallery</h2>
<p>
END_HEAD

# Jadro veci urobime v jednom cykle; mohli by byt dva, jeden
# pre koverziu a druhy pre vypis.

for FILE in *.jpg; do
	THUMBNAIL=`echo $FILE|sed 's@\(.*\)\.jpg@thumbnails/\1.gif@'`
	convert -resize '10%' $FILE $THUMBNAIL
	echo "<a href=\"$FILE\"><img src=\"$THUMBNAIL\"></a> <br>"
done

# Napiseme paticku.

cat << END_FOOT
</body>
</html>
END_FOOT


