#!/usr/bin/env python
# -*- coding: utf-8 -*-

## This file is part of the Nepomuk KDE project.
## Copyright (C) 2011 Sebastian Trueg <trueg@kde.org>
## Copyright (C) 2011 Serebriyskiy Artem <v.for.vandal@gmail.com>
## Copyright (C) 2013 Joerg Ehrichs <joerg.ehrichs@gmx.de>
##
## This library is free software; you can redistribute it and/or
## modify it under the terms of the GNU Lesser General Public
## License as published by the Free Software Foundation; either
## version 2.1 of the License, or (at your option) version 3, or any
## later version accepted by the membership of KDE e.V. (or its
## successor approved by the membership of KDE e.V.), which shall
## act as a proxy defined in Section 6 of version 3 of the license.
##
## This library is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
## Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public
## License along with this library.  If not, see <http://www.gnu.org/licenses/>.

import argparse
import sys
import os, errno
from PyKDE4.soprano import Soprano
from PyQt4 import QtCore
import sip
sip.setapi("QString", 1)

# A list of C++ reserved keywords which we need to handle
cppKeywords = ['class', 'int', 'float', 'double', 'long']

# global variables for speedy typeString (please change comment to something more serious! :)
rdfTypeQStringList = {Soprano.Vocabulary.XMLSchema.string().toString(): 'QStringList',
                      Soprano.Vocabulary.RDFS.Literal().toString(): 'QStringList'}

rdfTypeOthers = {Soprano.Vocabulary.XMLSchema.integer().toString(): "qint64",
                 Soprano.Vocabulary.XMLSchema.negativeInteger().toString(): "qint64",
                 Soprano.Vocabulary.XMLSchema.nonNegativeInteger().toString(): "quint64",
                 Soprano.Vocabulary.XMLSchema.xsdLong().toString(): "qint64",
                 Soprano.Vocabulary.XMLSchema.unsignedLong().toString(): "quint64",
                 Soprano.Vocabulary.XMLSchema.xsdInt().toString(): "qint32",
                 Soprano.Vocabulary.XMLSchema.unsignedInt().toString(): "quint32",
                 Soprano.Vocabulary.XMLSchema.xsdShort().toString(): "qint16",
                 Soprano.Vocabulary.XMLSchema.unsignedShort().toString(): "quint16",
                 Soprano.Vocabulary.XMLSchema.xsdFloat().toString(): "double",
                 Soprano.Vocabulary.XMLSchema.xsdDouble().toString(): "double",
                 Soprano.Vocabulary.XMLSchema.boolean().toString(): "bool",
                 Soprano.Vocabulary.XMLSchema.date().toString(): "QDate",
                 Soprano.Vocabulary.XMLSchema.time().toString(): "QTime",
                 Soprano.Vocabulary.XMLSchema.dateTime().toString(): "QDateTime",
                 Soprano.Vocabulary.XMLSchema.string().toString(): "QString",
                 Soprano.Vocabulary.RDFS.Literal().toString(): "QString"}

#NOTE: Here some special cases are handled, cases where the property name are the same for different ontologies
#      In order to keep the same method names, no matter if all ontologies are used we hardcode them here
#      usually this should not happend to more than a handful cases and rather be avoided during ontology creation anyway
duplicateProperties = {QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/03/22/nco#contributor') : QtCore.QString('ncoContributor'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/03/22/nao#contributor'): QtCore.QString('naoContributor'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/01/19/nie#description'): QtCore.QString('nieDescription'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/08/15/nao#description'): QtCore.QString('naoDescription'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/08/15/nco#creator'): QtCore.QString('ncoCreator'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/08/15/nao#creator'): QtCore.QString('naoCreator'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/01/19/nie#modified'): QtCore.QString('nieModified'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/08/15/nao#modified'): QtCore.QString('naoModified'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/04/02/ncal#created'): QtCore.QString('ncalCreated'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/08/15/nao#created'): QtCore.QString('naoCreated'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/01/19/nie#lastModified'): QtCore.QString('nieLastModified'),
                       QtCore.QString('http://www.semanticdesktop.org/ontologies/2007/08/15/nao#lastModified'): QtCore.QString('naoLastModified')}

# Some handy aliases to make the code a bit easier to read
NRL_cardinality = Soprano.Vocabulary.NRL.cardinality().toString()
NRL_maxcardinality = Soprano.Vocabulary.NRL.maxCardinality().toString()
NRL_ontology = Soprano.Vocabulary.NRL.Ontology().toString()
RDF_type = Soprano.Vocabulary.RDF.type().toString()
RDF_property = Soprano.Vocabulary.RDF.Property().toString()
RDFS_domain = Soprano.Vocabulary.RDFS.domain().toString()
RDFS_resource = Soprano.Vocabulary.RDFS.Resource().toString()
RDFS_class = Soprano.Vocabulary.RDFS.Class().toString()
RDFS_subClassOf = Soprano.Vocabulary.RDFS.subClassOf().toString()
RDFS_comment = Soprano.Vocabulary.RDFS.comment().toString()
RDFS_label = Soprano.Vocabulary.RDFS.label().toString()
RDFS_range = Soprano.Vocabulary.RDFS.range().toString()
NAO_hasDefaultNsAbbr = Soprano.Vocabulary.NAO.hasDefaultNamespaceAbbreviation().toString()

class OntologyParser():
    def __init__(self, verbose=False):
        self.parsedData = {}
        self.classes = {}
        self.ontologies = {}
        self.specialProperties = []
        self.output_path = ''
        self.verbose = verbose

    def parseFile(self, path):
        """
        Read the trig file for the ontology at 'path' via the Soprano parser and save the content in a dictionary

        @return @arg @c true if reading was sucessfull
        @arg @c false if file could not be parsed
        """
        parser = Soprano.PluginManager.instance().discoverParserForSerialization(Soprano.SerializationTrig)
        if not parser:
            return False

        it = parser.parseFile(path, QtCore.QUrl("dummy"), Soprano.SerializationTrig)
        while it.next():
            # get existing dictionay for the current subject
            subject = {}
            if it.current().subject().toString() in self.parsedData:
                subject = self.parsedData[it.current().subject().toString()]

            # now add the new context

            # special case for schema#subClassOf as we can have more than 1 of them
            if it.current().predicate().toString() == RDFS_subClassOf:
                parentClassList = []

                if RDFS_subClassOf in subject:
                    parentClassList = subject[RDFS_subClassOf]

                parentClassList.append(it.current().object().toString())
                subject[RDFS_subClassOf] = parentClassList

            # for all other predicates we simply add them
            else:
                subject[it.current().predicate().toString()] = it.current().object().toString()

            subject[u'context'] = it.current().context().toString()

            self.parsedData.update({it.current().subject().toString(): subject})

        if parser.lastError():
            return False;

        return True

    def sortData(self):
        """
        Sort the parsed ontology dictionary

        split data so we end up with
        * one dictionary per class with all properties. combined in self.classes
        * one dictionary for each general ontology data. combined in self.ontologies
        """
        # iterate of all parsed entries
        for key in self.parsedData:
            # check what kind of entry we have here
            #print 'check key: ' + key + ' for typeKey: ' + typeKey

            if RDF_type not in self.parsedData[key]:
                continue

            # for ontologies simply throw them in the ontology dictionary
            elif self.parsedData[key][RDF_type] == NRL_ontology:
                self.ontologies[key] = self.parsedData[key]

            # for classes find all properties and throw them in the class dictionary
            elif self.parsedData[key][RDF_type] == RDFS_class:
                self.classes[key] = self.buildClassDictionary(key, self.parsedData[key])


            # anything else can be ignored (properties and enums)

        #FIXME: add some special cases for all properties with a domain of rdfs:Resource and no domain
        #       these properties will be added to all classes with no parent class other than Nepomuk2::SimpleResource
        #       otherwise properties like nao:prefLabelel are not working
        #NOTE:  These properties might have the same names as other properties (nco:nco#contributor/nao:nco#contributor or nie:description/nao:description)
        #       So we add the namespace in front of them to be sure (and keep build compatibility with old nepomuk-simpleresource-rcgen)
        #       This is not done automatically on purpose, so we even add the namespace if we do not use all conflictiong ontologies
        #       this way the generated classes always look the same.
        #       @see extractNameFromUri
        for key in self.parsedData:
            if RDF_type not in self.parsedData[key]:
                continue

            if self.parsedData[key][RDF_type] != RDF_property:
                continue

            if RDFS_domain not in self.parsedData[key] or self.parsedData[key][RDFS_domain] == RDFS_resource:
                specialDict =  self.parsedData[key]
                specialDict[u'uri'] = key
                self.specialProperties.append(specialDict)

    def buildClassDictionary(self, className, classData):
        """
        Takes the dictionary that is used for the class and creates a new dictionary with all properties

        In order to do this, all entries that have rdf-schema#domain with this class are taken and combined

        @return a new dictionary with all data necessary for this class construct
        """

        classDict = {}
        propertyList = []

        # first get the general information for the class
        if u'context' in classData:
            classDict[u'context'] = classData[u'context'] # what ontology it belongs to
        if RDFS_subClassOf in classData:
            classDict[RDFS_subClassOf] = classData[RDFS_subClassOf] # the parent class if it exist
        if RDFS_comment in classData:
            classDict[RDFS_comment] = classData[RDFS_comment] # the class comment
        if RDFS_label in classData:
            classDict[RDFS_label] = classData[RDFS_label] # the class name

        #---------------------
        # Now get all properties of this class from the parsedData dictionary
        for key in self.parsedData:
            # check if it is a property in the domain of this class
            if RDFS_domain not in self.parsedData[key]:
                continue

            if self.parsedData[key][RDFS_domain] != className:
                continue

            # ok we have a property of this class put it into the list of all properties
            propDict = self.parsedData[key]
            propDict[u'uri'] = key
            propertyList.append(propDict)

        # now add properties to class dictionary and return the class
        classDict[u'properties'] = propertyList

        return classDict

    def generateClasses(self):
        """
        Iterates over all classes and generates the header files
        """
        for key in self.classes:
            self.writeHeader(key, self.classes[key])

    def normalizeName(self, name):
        """
        Normalize a class or property name to be used as a C++ entity.
        """
        name.replace('-', '_')
        name.replace('.', '_')
        return name

    def extractNameFromUri(self, uri):
        """
        Extract the class or property name from an entity URI. This is the last section of the URI
        """
        if duplicateProperties.get(uri) is None: # handle case when it's not in
            name = uri.mid(uri.lastIndexOf(QtCore.QRegExp('[#/:]'))+1)
        else:
            name = duplicateProperties[uri]

        return self.normalizeName(name)

    def mkdir_p(self, path):
        """
        Create a folder and all its missing parent folders
        """
        try:
            os.makedirs(path)
        except OSError as exc: # Python >2.5
            if exc.errno == errno.EEXIST:
                pass
            else: raise

    def typeString(self, rdfType, cardinality):
        """
        Construct the C++/Qt type to be used for the given type and cardinality.
        Uses QUrl for all non-literal types
        """
        if (rdfType in rdfTypeQStringList) and cardinality != 1:
            return 'QStringList'

        simpleType = rdfTypeOthers.get(rdfType, 'QUrl') # fall back to QUrl when not matched

        if cardinality != 1:
            return 'QList<%s>' % simpleType
        else:
            return simpleType

    def makeFancy(self, name, cardinality):
        """
        Adds some additional adjectives to class getter/setter names
        """
        if name.startsWith("has"):
            name = name[3].toLower() + name.mid(4)
        if cardinality != 1:
            if name.endsWith('s'):
                name = name + 'es'
            else:
                name = name + 's'

        return self.normalizeName(name)

    def classDetails(self, classUri):
        """
        Extracts some class generic details

        @return list with className and nameSpace Abbriviation
        """
        className = self.extractNameFromUri(classUri)
        nsAbbr = None
        classDetails = []

        if classUri not in self.classes:
            return classDetails

        # find the default namespace abbreviation, usualy this is inside the ontology.trig file
        ontology = self.classes[classUri][u'context']
        if ontology in self.ontologies and NAO_hasDefaultNsAbbr in self.ontologies[ontology]:
            nsAbbr = self.ontologies[ontology][NAO_hasDefaultNsAbbr]
        else:
            #if not we parse it out of the uri
            nsAbbr = ontology.mid(ontology.lastIndexOf(QtCore.QRegExp('[/]'))+1, -1).remove('#')

        if nsAbbr is None:
            print 'Error: Could not find Namespace Abbreviation from ' + ontology

        classDetails = [className, nsAbbr]

        return classDetails;

    def getFullParentHierarchy(self, uri, currentParents, result):
        """
        Returns a list of all parent urls

        currentParents is a running variable used to avoid endless loops when recursing. It should
        always be set to the empty list [].
        result is another running variable which stores the final result set. It should also be set
        to the empty list [].
        """

        # check if the current uri has a parent and one that exist
        # here we ignore rdf:Resource as direct parent

        directParents = []
        if uri in self.classes and RDFS_subClassOf in self.classes[uri]:
            directParents = self.classes[uri][RDFS_subClassOf]
        else:
            return directParents

        # iterate over all parents and get their parents
        # avoid duplicates
        for p in directParents:
            if not p in currentParents:
                if p in self.classes:
                    currentParents.append(p)
                    self.getFullParentHierarchy(p, currentParents, result)
                    result.append(p)

                return result

    def writeComment(self, theFile, text, indent):
        """
        Writes a comment for a class/getter/setter/adder methods
        """
        maxLine = 50;

        theFile.write(' ' * indent*4)
        theFile.write("/**\n")
        theFile.write(' ' * (indent*4+1))
        theFile.write("* ")

        words = QtCore.QString(text).split( QtCore.QRegExp("\\s"), QtCore.QString.SkipEmptyParts )
        cnt = 0;
        for i in range(words.count()):
            if cnt >= maxLine:
                theFile.write('\n')
                theFile.write(' ' * (indent*4+1))
                theFile.write("* ")
                cnt = 0;
            theFile.write(words[i])
            theFile.write(' ')
            cnt += words[i].length()

        theFile.write('\n')
        theFile.write(' ' * (indent*4+1))
        theFile.write("*/\n")

    def writeGetter(self, theFile, propUri, name, propRange, cardinality):
        """
        Writes the getter method for any given ontology class property
        """
        fancyName = self.makeFancy(name, cardinality)
        if fancyName in cppKeywords:
            fancyName = 'get' + fancyName[0].toUpper() + fancyName.mid(1)

        theFile.write('    %s %s() const {\n' % (self.typeString(propRange, cardinality), fancyName))
        theFile.write('        %s value;\n' % self.typeString(propRange, cardinality))
        if cardinality == 1:
            theFile.write('        if(contains(QUrl::fromEncoded("%s", QUrl::StrictMode)))\n' % propUri)
            theFile.write('            value = property(QUrl::fromEncoded("{0}", QUrl::StrictMode)).first().value<{1}>();\n'.format(propUri, self.typeString(propRange, 1)))
        else:
            theFile.write('        foreach(const QVariant& v, property(QUrl::fromEncoded("%s", QUrl::StrictMode)))\n' % propUri)
            theFile.write('            value << v.value<{0}>();\n'.format(self.typeString(propRange, 1)))
        theFile.write('        return value;\n')
        theFile.write('    }\n')

    def writeSetter(self, theFile, propUri, name, propRange, cardinality):
        """
        Writes the setter method for any given ontology class property
        """
        theFile.write('    void set%s%s(const %s& value) {\n' % (self.makeFancy(name, cardinality)[0].toUpper(), self.makeFancy(name, cardinality).mid(1), self.typeString(propRange, cardinality)))
        theFile.write('        QVariantList values;\n')
        if cardinality == 1:
            theFile.write('        values << value;\n')
        else:
             theFile.write('        foreach(const %s& v, value)\n' % self.typeString(propRange, 1))
             theFile.write('            values << v;\n')
        theFile.write('        setProperty(QUrl::fromEncoded("%s", QUrl::StrictMode), values);\n' % propUri)
        theFile.write('    }\n')

    def writeAdder(self, theFile, propUri, name, propRange, cardinality):
        """
        Writes the adder method for any given ontology class property
        """
        theFile.write('    void add%s%s(const %s& value) {\n' % (self.makeFancy(name, 1)[0].toUpper(), self.makeFancy(name, 1).mid(1), self.typeString(propRange, 1)))
        theFile.write('        addProperty(QUrl::fromEncoded("%s", QUrl::StrictMode), value);\n' % propUri)
        theFile.write('    }\n')

    def writeHeader(self, classUri, classDict):
        """
        Writes the header file for the current class
        """

        classInfo = self.classDetails(classUri)
        className = classInfo[0]
        nsAbbr = classInfo[1]

        # Construct paths
        relative_path = nsAbbr + '/' + className.toLower() + '.h'
        folder = self.output_path + '/' + nsAbbr
        filePath = self.output_path + '/' + relative_path

        if self.verbose:
            print "Writing header file: " + filePath

        # Create the containing folder
        self.mkdir_p(QtCore.QFile.encodeName(folder).data())

        # open the header file
        with open(filePath, "w") as header:

            # write protecting ifdefs
            header_protect = '_%s_%s_H_' % (nsAbbr.toUpper(), className.toUpper())
            header.write('#ifndef %s\n' % header_protect)
            header.write('#define %s\n' % header_protect)
            header.write('\n')

            # write default includes
            header.write('#include <QtCore/QVariant>\n')
            header.write('#include <QtCore/QStringList>\n')
            header.write('#include <QtCore/QUrl>\n')
            header.write('#include <QtCore/QDate>\n')
            header.write('#include <QtCore/QTime>\n')
            header.write('#include <QtCore/QDateTime>\n')
            header.write('\n')

            # all classes need the SimpleResource include
            header.write('#include <Nepomuk2/SimpleResource>\n\n')

            # get all base classes which we require due to the virtual base class constructor ordering in C++
            parentClassNames = []
            if RDFS_subClassOf in classDict:
                for parent in classDict[RDFS_subClassOf]:
                    if not parent.contains(u'http://www.w3.org/2000/01/rdf-schema#Resource'):
                        parentInfo = self.classDetails(parent)
                        if parentInfo:
                            header.write('#include "%s/%s.h"\n' % (parentInfo[1], parentInfo[0].toLower()))
                            parentClassNames.append("%s::%s" %(parentInfo[1].toUpper(), parentInfo[0]))

            header.write('\n')

            # generate a list with all parents
            fullParentHierarchyNames = []
            for parent in self.getFullParentHierarchy(classUri, [], []):
                parentInfo = self.classDetails(parent)
                parentName = parentInfo[0]
                parntNsAbbr = parentInfo[1]
                fullParentHierarchyNames.append("%s::%s" %(parntNsAbbr.toUpper(), parentName))

            # We inverse the order to match the virtual inheritance constructor calling order
            parentClassNames.reverse()

            # write the class namespace
            header.write('namespace Nepomuk2 {\n')
            header.write('namespace %s {\n' % nsAbbr.toUpper())

            # write the header comment
            if RDFS_comment in classDict:
                self.writeComment(header, classDict[RDFS_comment], 0)

            # write the class + parent classes
            # We use virtual inheritance when deriving from SimpleResource since our ontologies
            # make use of multi-inheritance and without it the compiler would not know which
            # addProperty and friends to call.
            # We need to do the same with all parent classes since some classes like
            # nco:CellPhoneNumber as derived from other classes that have yet another parent
            # class in common which is not SimpleResource.
            header.write('class %s' % className)
            header.write(' : ')
            header.write(', '.join(['public virtual %s' % (p) for p in parentClassNames]))
            if not parentClassNames:
                header.write('public virtual Nepomuk2::SimpleResource');
            header.write('\n{\n')
            header.write('public:\n')


            # write the default constructor
            # We directly set the type of the class to the SimpleResource. If the class is a base class
            # not derived from any other classes then we set the type directly. Otherwise we use the
            # protected constructor defined below which takes a type as parameter making sure that we
            # only add one type instead of the whole hierarchy
            header.write('    %s(const QUrl& uri = QUrl())\n' % className)
            header.write('      : ')
            header.write('SimpleResource(uri)')
            if parentClassNames:
                header.write(', ')
                header.write(', '.join([('%s(uri, QUrl::fromEncoded("' + classUri.toUtf8().data() + '", QUrl::StrictMode))') % p for p in fullParentHierarchyNames]))
            header.write(' {\n')
            if not parentClassNames:
                header.write('        addType(QUrl::fromEncoded("%s", QUrl::StrictMode));\n' % classUri.toUtf8().data())
            header.write('    }\n\n')

            # write the copy constructor
            header.write('    %s(const SimpleResource& res)\n' % className)
            header.write('      : ')
            header.write('SimpleResource(res)')
            if parentClassNames:
                header.write(', ')
                header.write(', '.join([('%s(res, QUrl::fromEncoded("' + classUri.toUtf8().data() + '", QUrl::StrictMode))') % p for p in fullParentHierarchyNames]))
            header.write(' {\n')
            if not parentClassNames:
                header.write('        addType(QUrl::fromEncoded("%s", QUrl::StrictMode));\n' % classUri.toUtf8().data())
            header.write('    }\n\n')

            # write the assignment operator
            header.write('    %s& operator=(const SimpleResource& res) {\n' % className)
            header.write('        SimpleResource::operator=(res);\n')
            header.write('        addType(QUrl::fromEncoded("%s", QUrl::StrictMode));\n' % classUri.toUtf8().data())
            header.write('        return *this;\n')
            header.write('    }\n\n')

            for p in classDict[u'properties']:
                comment = ''
                if RDFS_comment in p:
                    comment = p[RDFS_comment]

                pcardinality = 0
                if NRL_cardinality in p:
                    pcardinality = int(p[NRL_cardinality])
                if NRL_maxcardinality in p:
                    pcardinality = int(p[NRL_maxcardinality])

                plabel = p[RDFS_label]
                pname = self.extractNameFromUri(p[u'uri'])

                prange = ' '
                if RDFS_range in p:
                    prange = p[RDFS_range]
                else:
                    if self.verbose:
                        print 'No range given for property: ' + pname
                    continue

                self.writeComment(header, 'Get property %s. %s' % (plabel, comment), 1)
                self.writeGetter(header, p[u'uri'], pname, prange, pcardinality)
                header.write('\n')
                self.writeComment(header, 'Set property %s. %s' % (plabel, comment), 1)
                self.writeSetter(header, p[u'uri'], pname, prange, pcardinality)
                header.write('\n')
                self.writeComment(header, 'Add value to property %s. %s' % (plabel, comment), 1)
                self.writeAdder(header, p[u'uri'], pname, prange, pcardinality)
                header.write('\n')

            # Also add all properties with #domain rdfs-Resource or none to any class without parent
            if not parentClassNames:
                for sp in self.specialProperties:

                    comment = 'unknown'
                    if RDFS_comment in sp:
                        comment = sp[RDFS_comment]

                    pcardinality = 1
                    if NRL_cardinality in sp:
                        pcardinality = int(sp[NRL_cardinality])
                    if NRL_maxcardinality in sp:
                        pcardinality = int(sp[NRL_maxcardinality])

                    plabel = 'unknown'
                    if RDFS_label in sp:
                        plabel = sp[RDFS_label]

                    pname = self.extractNameFromUri(sp[u'uri'])

                    prange = ' '
                    if RDFS_range in sp:
                        prange = sp[RDFS_range]
                    else:
                        if self.verbose:
                            print 'No range given for property: ' + sp[u'uri']
                        continue

                    self.writeComment(header, 'Get property %s. %s' % (plabel, comment), 1)
                    self.writeGetter(header, sp[u'uri'], pname, prange, pcardinality)
                    header.write('\n')
                    self.writeComment(header, 'Set property %s. %s' % (plabel, comment), 1)
                    self.writeSetter(header, sp[u'uri'], pname, prange, pcardinality)
                    header.write('\n')
                    self.writeComment(header, 'Add value to property %s. %s' % (plabel, comment), 1)
                    self.writeAdder(header, sp[u'uri'], pname, prange, pcardinality)
                    header.write('\n')


            # write the protected constructors which avoid adding the whole type hierarchy
            header.write('protected:\n')
            header.write('    %s(const QUrl& uri, const QUrl& type)\n' % className)
            header.write('      : ')
            header.write('SimpleResource(uri)')
            if parentClassNames:
                header.write(', ')
                header.write(', '.join(['%s(uri, type)' % p for p in fullParentHierarchyNames]))
            header.write(' {\n')
            if not parentClassNames:
                header.write('        addType(type);\n')
            header.write('    }\n')

            header.write('    %s(const SimpleResource& res, const QUrl& type)\n' % className)
            header.write('      : ')
            header.write('SimpleResource(res)')
            if parentClassNames:
                header.write(', ')
                header.write(', '.join(['%s(res, type)' % p for p in fullParentHierarchyNames]))
            header.write(' {\n')
            if not parentClassNames:
                header.write('        addType(type);\n')
            header.write('    }\n')

            # close the class
            header.write('};\n')

            # write the closing parenthesis for the namespaces
            header.write('}\n}\n')

            # write the closing preprocessor thingi
            header.write('\n#endif\n')


def main():

    usage = "Usage: %prog [options] ontologyfile1 ontologyfile2 ..."
    optparser = argparse.ArgumentParser(description="Nepomuk SimpleResource code generator. It will generate a hierarchy of simple wrapper classes around Nepomuk2::SimpleResource which provide convinience methods to get and set properties of those classes. Each wrapper class will be defined in its own header file and be written to a subdirectory named as the default ontology prefix. Example: the header file for nao:Tag would be written to nao/tag.h and be defined in the namespace Nepomuk2::NAO.")
    optparser.add_argument('--output', '-o', nargs=1, metavar='PATH', dest='output', help='The destination folder')
    optparser.add_argument('--quiet', '-q', action="store_false", dest="verbose", default=True, help="don't print status messages to stdout")
    optparser.add_argument("ontologies", nargs='+', metavar="ONTOLOGY", help="Ontology files to use")

    args = optparser.parse_args()

    output_path = ''
    if args.output is not None:
        output_path = args.output[0]
    else:
        output_path = os.getcwd()

    if args.verbose:
        print 'Generating from ontology files %s' % ','.join(args.ontologies)
        print 'Writing files to %s.' % output_path


    ontoParser = OntologyParser(verbose=args.verbose)
    ontoParser.output_path = output_path

    # Parse all ontology files
    for f in args.ontologies:
        if args.verbose:
            print "Reading ontology '%s'" % f
        ontoParser.parseFile(f)
    if args.verbose:
        print "All ontologies read. Generating code..."

    # sort the dictionary classes
    ontoParser.sortData()

    # write the header files for each class
    ontoParser.generateClasses()

if __name__ == "__main__":
    main()