# -*- mode: rnc; -*-
#
# Author: David Maus <maus@hab.de>
#

namespace dct  = "http://purl.org/dc/terms/"
namespace foaf = "http://xmlns.com/foaf/0.1/"
namespace owl  = "http://www.w3.org/2002/07/owl#"
namespace rdf  = "http://www.w3.org/1999/02/22-rdf-syntax-ns#"
namespace skos = "http://www.w3.org/2004/02/skos/core#"

namespace s = "http://purl.oclc.org/dsdl/schematron"

[
   s:ns [ prefix = "rdf" uri = "http://www.w3.org/1999/02/22-rdf-syntax-ns#" ]
   s:ns [ prefix = "owl" uri = "http://www.w3.org/2002/07/owl#" ]

   s:pattern [
      s:rule [
         context = "@rdf:about | @rdf:resource" s:assert [
            test = "matches(., '^https?://')"
            id = "general_001"
            "Verwende immer vollständige URIs für Subjekte oder Referenzen"
         ]
      ]
   ]
]

start = rdfWrapper

optionalMetadata =
   element dct:subject { Concept }*
 & element dct:issued { Datestamp }?
 & element dct:creator { Agent }*
 & element dct:description { rdfLiteral }*
 & element dct:title { rdfLiteral }*
 & element dct:relation { rdfResource }*
 & element dct:source { rdfResource }*

requiredMetadata =
   element dct:publisher { Agent }
 & element dct:created { Datestamp }
 & element dct:modified { Datestamp }
 & element dct:license { License }

rdfLiteral =
   attribute xml:lang { xsd:language }?
 & text

Agent =
   ( Organization | Person )

Organization =
   element foaf:Organization {
      ( internalEntity | externalEntity )
   }

Person =
   element foaf:Person {
      ( internalEntity | externalEntity )
   }

internalEntity =
   [
      s:pattern [
         s:rule [
            context = "*[@rdf:about]" s:assert [
               test = "matches(@rdf:about, '^http://([^.]+\.)?hab\.de(/.*)?$')"
               id = "internalEntity_001"
               "Verwende <owl:sameAs> für Statements zu Entitäten, die nicht unter der Kontrolle der HAB liegen."
            ]
         ]
      ]
   ]
   attribute rdf:about { xsd:anyURI },
   Label+

externalEntity =
   [
      s:pattern [
         s:rule [
            context = "owl:sameAs" s:assert [
               test = "not(matches(@rdf:resource, '^http://([^.]+\.)?hab\.de(/.*)?$'))"
               id = "externalEntity_001"
               "Verwende @rdf:about für Statements zu Entitäten, die unter der Kontroller der HAB liegen."
            ]
         ]
      ]
   ]
   element owl:sameAs {
      attribute rdf:resource { xsd:anyURI }
   }
 & Label+

Label =
   element skos:prefLabel { rdfLiteral }

Datestamp =
   attribute rdf:datatype { "http://www.w3.org/2001/XMLSchema#date" }
 & xsd:date

License =
   element dct:LicenseDocument {
      ( internalEntity | externalEntity )
   }

Concept =
   element skos:Concept {
      ( internalEntity | externalEntity )
   }

rdfResource =
   attribute rdf:resource { xsd:anyURI }

rdfPrimarySubject =
   attribute rdf:about { xsd:anyURI }

rdfPrimarySubjectEntity = notAllowed

rdfWrapper =
   element rdf:RDF {
      rdfPrimarySubjectEntity
   }