<xsl:stylesheet version="3.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:xs="http://www.w3.org/2001/XMLSchema"
                xmlns:opf="http://www.idpf.org/2007/opf"
                xmlns:dc="http://purl.org/dc/elements/1.1/"
                xmlns:ids="http://www.ids-mannheim.de/ids"
                xmlns:hlu="http://www.ids-mannheim.de/hlu"
                xmlns:saxon="http://saxon.sf.net/"
                xmlns:xhtml="http://www.w3.org/1999/xhtml"
                exclude-result-prefixes="xs opf dc ids hlu saxon xhtml">

    <xsl:output method="xml" indent="yes" omit-xml-declaration="yes" saxon:line-length="1000"/>
    <xsl:strip-space elements="*"/>

    <xsl:variable name="ev"/>
    <xsl:variable name="x"/>

    <xsl:variable name="isbn" as="xs:string" select="replace(document-uri(), '.*([0-9]{13,}).*' , '$1')"/>


    <xsl:variable name="dnbBookdata">
        <xsl:copy-of select="doc(concat('https://services.dnb.de/sru/dnb?version=1.1&amp;operation=searchRetrieve&amp;query=NUM%3D', $isbn, '&amp;recordSchema=oai_dc'))"/>
    </xsl:variable>

    <xsl:variable name="autor"
        select="string-join(replace($dnbBookdata//dc:creator, ' *\[[^\]]*\]', ''), ' ; ')"/>

    <xsl:variable name="straight_autor" select="normalize-space(replace(hlu:reversedAuthors($autor), ',', ''))"/>

    <xsl:variable name="ina"/>
    <xsl:variable name="_corpus"/>
    <xsl:variable name="ent_known"/>


    <!-- added HLU 2012-02-09: -->
    <xsl:variable name="ent">
        <xsl:choose>
            <xsl:when test="$ent_known">
                <xsl:value-of select="$ent_known"/>
            </xsl:when>
            <xsl:when test="$ev">
                <xsl:value-of select="$ev"/>
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of select="$j"/>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:variable>

    <xsl:variable name="titel">
        <xsl:choose>
            <xsl:when test="contains($dnbBookdata//dc:title,':')">
                <xsl:value-of select="normalize-space(substring-before(substring-before($dnbBookdata//dc:title, '/'), ':'))"
                    />
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of select="normalize-space(substring-before($dnbBookdata//dc:title, '/'))"/>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:variable>

    <xsl:variable name="erscheinungsort">
        <xsl:choose>
            <xsl:when test="contains($dnbBookdata//dc:publisher,':')">
                <xsl:value-of select="normalize-space(substring-before($dnbBookdata//dc:publisher, ':'))"/>
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of select="normalize-space($dnbBookdata//dc:publisher)"/>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:variable>

    <xsl:variable name="verlag">
        <xsl:choose>
            <xsl:when test="contains($dnbBookdata//dc:publisher,':')">
                <xsl:value-of select="normalize-space(substring-after($dnbBookdata//dc:publisher, ':'))"/>
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of select="normalize-space($dnbBookdata//dc:publisher)"/>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:variable>

    <xsl:variable name="erscheinungsjahr">
        <xsl:choose>
            <xsl:when test="matches($dnbBookdata//dc:date, '^[0-9]{4}$')">
                <xsl:value-of select="$dnbBookdata//dc:date"/>
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of select="substring-before($dnbBookdata//dc:date, '-')"/>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:variable>

    <xsl:variable name="untertitel"
        select="normalize-space(substring-after(substring-before($dnbBookdata//dc:title, '/'), ':'))"/>

    <xsl:variable name="herausgeber">
        <xsl:choose>
            <xsl:when test="$dnbBookdata//dc:creator[ends-with(.,'[Hrsg.]')]">
                <xsl:value-of
                    select="replace(string-join($dnbBookdata//dc:creator[ends-with(.,'[Hrsg.]')], ' ; '),'\s?\[Hrsg.\]','')"
                    />
            </xsl:when>
            <xsl:otherwise>.</xsl:otherwise>
        </xsl:choose>
    </xsl:variable>

    <xsl:variable name="straight_herausgeber"
        select="replace(hlu:reversedAuthors($herausgeber), ',', '')"/>

    <xsl:variable name="j" select="$dnbBookdata//dc:date"/>

    <!-- for BOT+s: -->
    <xsl:variable name="seiten" select="replace($dnbBookdata//dc:format,'S\.','')"/>

    <!-- fuer BOT+b: -->
    <xsl:variable name="_b">
        <xsl:variable name="regexp1" select="'(Band|Bd\.)\s*([0-9]?[0-9]?[0-9])'"/>
        <xsl:choose>
            <xsl:when test="matches($dnbBookdata, $regexp1)">
                <xsl:analyze-string select="$dnbBookdata//dc:title" regex="{$regexp1}">
                    <xsl:matching-substring>
                        <xsl:value-of select="."/>
                    </xsl:matching-substring>
                </xsl:analyze-string>
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of select="'.'"/>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:variable>

    <!-- for BOT+x: -->
    <xsl:variable name="txtart">
        <xsl:choose>
            <xsl:when test="$x">
                <xsl:value-of select="concat('[', $x, ']')"/>
            </xsl:when>
            <xsl:when
                test="matches($untertitel, '([Rr]oman|[Ee]rzhlung(en)?|[Aa]nthologie|[Gg]eschichte(n)?|[Nn]ovelle)')">
                <xsl:value-of
                    select="concat('[', replace(replace($untertitel, '.*?(((^|\P{L})\p{L}+)?([Rr]oman|[Ee]rzhlung(en)?|[Aa]nthologie|[Gg]eschichte(n)?|[Nn]ovelle)).*', '$1'), '\P{L}*(.+)', '$1'), ']')"
                    />
            </xsl:when>
            <xsl:otherwise>
                <xsl:value-of>Roman</xsl:value-of>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:variable>


    <!-- fuer BOTd: -->
    <xsl:variable name="dok"
        select="concat((if(string-length($autor) &gt; 0) then concat($straight_autor, ': ') else ''), $titel, ', ', $txtart, ', (', $j, ')')"/>

    <!-- END variables derived from sru request to dnb archive -->


    <xsl:variable name="corpus_sigle" select="'DNB'"/>

    <!-- for BOTD: -->
    <!-- Dokumentsigle muss zusammen mit Korpussigle (z.B DIV fuer loz-div und loz-div-pub) eindeutig sein -->
    <xsl:variable name="doc_sigle">
        <xsl:variable name="firstContentWordTitleInitial">
            <xsl:variable name="helper">
                <xsl:analyze-string select="$titel" regex="\w+">
                    <xsl:matching-substring>
                        <xsl:choose>
                            <xsl:when
                                test="matches(.,'^[A-Z]') and not(matches(.,'^(Der|Die|Das|Des|Ein|Eine|Eines|Einmal|Von|Mit|Zu|Zurck)$'))">
                                <!-- TODO: Fktnswoerter nachtragen -->
                                <xsl:sequence select="."/>
                            </xsl:when>
                            <xsl:otherwise/>
                        </xsl:choose>
                    </xsl:matching-substring>
                </xsl:analyze-string>
            </xsl:variable>
            <xsl:value-of
                select="upper-case(substring(normalize-space(replace($helper,'\s+.+$','')),1,1))"/>
            <!-- longest match of .+  -->
        </xsl:variable>
        <xsl:choose>
            <xsl:when test="contains($autor,';')">
                <xsl:variable name="lastname_aut1"
                    select="upper-case(substring(normalize-space(substring-before(substring-before($autor,';'),',')), 1, 1))"/>
                <xsl:variable name="lastname_aut2"
                    select="upper-case(substring(normalize-space(substring-before(substring-before(substring-after($autor, ';'),';'),',')), 1, 1))"/>
                <xsl:value-of select="concat($lastname_aut1, $lastname_aut2)"/>
            </xsl:when>
            <xsl:otherwise>
                <xsl:variable name="lastname_aut1"
                    select="upper-case(substring(normalize-space(substring-before($autor,',')),1,1))"/>
                <xsl:variable name="firstname_aut1"
                    select="upper-case(substring(normalize-space(substring-after($autor,',')),1,1))"/>
                <xsl:value-of select="concat($lastname_aut1, $firstname_aut1)"/>
            </xsl:otherwise>
        </xsl:choose>
        <xsl:value-of select="$firstContentWordTitleInitial"/>
    </xsl:variable>


    <xsl:variable name="text_sigle" select="substring($isbn, 8, 5)"/>
    <xsl:variable name="sigle" select="concat($corpus_sigle, '/', $doc_sigle, '.', $text_sigle)"/>

    <!-- fuer BOT+xy: (?) -->
    <xsl:variable name="xyref">
        <xsl:value-of select="document-uri(.)"/>
        <xsl:text>; </xsl:text>
        <xsl:text>ISBN:</xsl:text>
        <xsl:value-of select="$isbn"/>
        <xsl:text>; </xsl:text>
        <xsl:value-of select="string-join($dnbBookdata//dc:identifier)"/>
    </xsl:variable>

    <xsl:variable name="long-reference"
        select="concat($sigle, ' ', $autor, ': ', $titel, '. ', $erscheinungsort, ': ', $verlag, ', ', $erscheinungsjahr)"/>

    <xsl:variable name="short-reference"
        select="concat($straight_autor, ': ', $titel, ' (',  $erscheinungsjahr, ')')"/>

    <xsl:template match="/">
        <idsDoc TEIform="TEI.2" type="text" version="1.0">
            <idsHeader TEIform="teiHeader" pattern="text" status="new" type="document" version="1.1">
                <fileDesc>
                    <titleStmt>
                        <dokumentSigle><xsl:value-of select="string-join(($corpus_sigle, $doc_sigle), '/')"/></dokumentSigle>
                        <d.title><xsl:value-of select="$short-reference"/></d.title>
                    </titleStmt>
                    <publicationStmt>
                        <distributor/>
                        <pubAddress/>
                        <availability region="world" status="unknown">QAO-NC</availability>
                        <pubDate/>
                    </publicationStmt>
                    <sourceDesc>
                        <biblStruct>
                            <monogr>
                                <h.title type="main"/>
                                <imprint/>
                            </monogr>
                        </biblStruct>
                    </sourceDesc>
                </fileDesc>
            </idsHeader>
            <idsText version="1.0">
                <idsHeader TEIform="teiHeader" pattern="text" status="new" type="text" version="1.1">
                    <fileDesc>
                        <titleStmt>
                            <textSigle><xsl:sequence select="$sigle"/></textSigle>
                            <t.title assemblage="regular"><xsl:value-of select="$long-reference"/></t.title>
                        </titleStmt>
                        <publicationStmt>
                            <distributor/>
                            <pubAddress/>
                            <availability region="world" status="unknown">QAO-NC</availability>
                            <pubDate/>
                        </publicationStmt>
                        <sourceDesc>
                            <biblStruct>
                                <monogr>
                                    <h.title type="main"><xsl:value-of select="$titel"/></h.title>
                                    <h.title type="sub"><xsl:value-of select="$untertitel"/></h.title>
                                    <h.author><xsl:value-of select="$autor"/></h.author>
                                    <editor/>
                                    <edition>
                                        <further/>
                                        <kind>E-Book-Ausgabe</kind>
                                        <appearance>EPUB-Datei</appearance>
                                    </edition>
                                    <imprint>
                                        <publisher><xsl:value-of select="$verlag"/></publisher>
                                        <pubDate type="year"><xsl:value-of select="$j"/></pubDate>
                                        <pubDate type="month"/>
                                        <pubDate type="day"/>
                                        <pubPlace key="DE"><xsl:value-of select="$erscheinungsort"/></pubPlace>
                                    </imprint>
                                    <biblScope type="subsume"/>
                                    <biblScope type="pp"/>
                                    <biblScope type="vol"/>
                                    <biblScope type="volume-title"/>
                                </monogr>
                            </biblStruct>
                            <reference assemblage="regular" type="complete"><xsl:value-of select="concat($sigle, ' ', $autor, ': ', $titel, '. ', $erscheinungsort, ': ', $verlag, ', ', $erscheinungsjahr)"/></reference>
                        </sourceDesc>
                    </fileDesc>
                    <profileDesc>
                        <creation>
                            <creatDate><xsl:value-of select="$j"/></creatDate>
                        </creation>
                        <textClass/>
                        <textDesc>
                            <textType>Jugendliteratur</textType>
                            <textTypeRef>Jugendliteratur</textTypeRef>
                            <textDomain/>
                        </textDesc>
                    </profileDesc>
                </idsHeader>
                <text>
                   <body>
                    <!-- Call the template for each link in the TOC 
                         <xsl:apply-templates select="//xhtml:ol[@class='toc']/xhtml:li/xhtml:a" mode="collect"/> -->
                    <xsl:apply-templates select="//opf:package/opf:manifest/opf:item[matches(@href, '\.x?html$') and not(matches(@href, '(cover|toc|copyright|feedback).*'))]" mode="collect"/>
                    </body>
                </text>
            </idsText>
        </idsDoc>
    </xsl:template>

    <xsl:template match="opf:item" mode="collect">
        <xsl:variable name="href" select="@href"/>
        <xsl:message>
            <xsl:text>converting: </xsl:text><xsl:value-of select="$href"/><xsl:text> </xsl:text><xsl:value-of select="$isbn"/>
        </xsl:message>
        <xsl:apply-templates select="doc(resolve-uri($href, base-uri()))/xhtml:html/xhtml:body"/>
    </xsl:template>

    <xsl:template match="xhtml:body">
        <div type="chapter">
            <xsl:apply-templates/>
        </div>
    </xsl:template>

    <xsl:template match="xhtml:title">
        <head>
            <xsl:apply-templates/>
        </head>
    </xsl:template>

    <xsl:template match="xhtml:h1">
        <head>
            <xsl:apply-templates/>
        </head>
    </xsl:template>

    <xsl:template match="xhtml:h2|xhtml:h3">
        <head type="sub">
            <xsl:apply-templates/>
        </head>
    </xsl:template>

    <xsl:template match="xhtml:em">
        <emph>
            <xsl:apply-templates/>
        </emph>
    </xsl:template>

    <xsl:template match="xhtml:span[matches(@class, '(bold|italic|big| )+')]">
        <hi rend="{@class}">
            <xsl:apply-templates/>
        </hi>
    </xsl:template>

    <xsl:template match="xhtml:sub|xhtml:span[@class='sub']">
        <hi rend="sub">
            <xsl:apply-templates/>
        </hi>
    </xsl:template>

    <xsl:template match="xhtml:sup|xhtml:span[@class='sup']">
        <hi rend="sup">
            <xsl:apply-templates/>
        </hi>
    </xsl:template>

    <xsl:template match="xhtml:div">
        <div type="section">
            <xsl:apply-templates/>
        </div>
    </xsl:template>

    <xsl:template match="xhtml:p">
        <p>
            <xsl:apply-templates/>
        </p>
    </xsl:template>

    <xsl:template match="xhtml:img">
        <!-- <gap reason="image"/>  -->
    </xsl:template>

    <xsl:template match="xhtml:a">
        <ref target="{@href}">
            <xsl:apply-templates />
        </ref>
    </xsl:template>

    <xsl:template match="xhtml:br"/>

    <xsl:template match="xhtml:*">
        <xsl:message>
            <xsl:text>unhandled element: </xsl:text><xsl:value-of select="concat(name(), ' ', string-join(./@*[normalize-space(.) != '']/concat(name(), ':', ., ' '), '_'))"/>
        </xsl:message>
        <xsl:apply-templates/>
    </xsl:template>

    <xsl:function name="ids:reversedAuthors">
        <xsl:param name="s" />
        <xsl:value-of
            select="
                if (matches($s, ';')) then
                    concat(ids:reversedAuthors(substring-before($s, ' ; ')), ' ; ', ids:reversedAuthors(substring-after($s, ' ; ')))
                else
                    replace($s, '(.+) (.+)', '$2, $1')"
            />
    </xsl:function>

    <xsl:function name="hlu:reversedAuthors">
        <xsl:param name="s"/>
        <xsl:value-of
            select="if (matches($s, ';')) then concat(ids:reversedAuthors(substring-before($s, ' ; ')), ' ; ', ids:reversedAuthors(substring-after($s, ' ; '))) else replace($s, '(.+),(.+)', '$2, $1')"
            />
    </xsl:function>

</xsl:stylesheet>