<?xml version="1.0" encoding="UTF-8"?>

<xsl:stylesheet version="2.0"

				xmlns="http://www.w3.org/1999/xhtml"

				xmlns:h="http://www.w3.org/1999/xhtml"

				xmlns:s="https://trac.frantovo.cz/xml-web-generator/wiki/xmlns/strana"

				xmlns:k="https://trac.frantovo.cz/xml-web-generator/wiki/xmlns/konfigurace"

				xmlns:m="https://trac.frantovo.cz/xml-web-generator/wiki/xmlns/makro"

				xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

				xmlns:fn="http://www.w3.org/2005/xpath-functions"

				xmlns:svg="http://www.w3.org/2000/svg"

				xmlns:xs="http://www.w3.org/2001/XMLSchema"

				exclude-result-prefixes="fn h s k m xs">

	<!--

		Images

		******

		Generates an XHTML img tag in a paragraph for given image.

		Title and Alt are filled with the EXIF comment field.

		Requires a command line tool: exiv2

		*

		@src path to the image file relative to the input directory (where web.conf resides)

	-->

	<xsl:template match="m:img">

		<xsl:variable name="script">

			<m:skript jazyk="bash" výstup="xml">

				DIR=$(dirname "$XWG_STRANKA_SOUBOR");

				DIR="$DIR/../vstup"

				cd "$DIR";

				<![CDATA[echo -n '<metadata>';]]>

				<![CDATA[echo -n '<description>';]]>

				exiv2 "<xsl:value-of select="@src"/>" | <![CDATA[perl -ne 'if (/Exif comment\s*:\s*(.*)/) { print "$1"; }' ]]> | <m:escape-xml/>

				<![CDATA[echo -n '</description>';]]>

				<![CDATA[echo -n '</metadata>';]]>

			</m:skript>

		</xsl:variable>

		<xsl:variable name="scriptResult">

			<xsl:apply-templates select="$script/node()"/>

		</xsl:variable>

		<p class="img-container">

			<!--

				TODO: check whether the thumbnail exists and if yes, disply it and link to the full image.

			-->

			<a href="{@src}">

				<img src="{@src}"

					 alt  ="{$scriptResult/h:metadata/h:description}" 

					 title="{$scriptResult/h:metadata/h:description}"/>

			</a>

		</p>

	</xsl:template>

</xsl:stylesheet>