"""Specific views for SIOC interfaces

:organization: Logilab

:copyright: 2003-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.

:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr

:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses

"""

__docformat__ = "restructuredtext en"

from logilab.mtconverter import xml_escape

from cubicweb.view import EntityView

from cubicweb.selectors import implements

from cubicweb.interfaces import ISiocItem, ISiocContainer

class SIOCView(EntityView):

    __regid__ = 'sioc'

    __select__ = EntityView.__select__ & implements(ISiocItem, ISiocContainer)

    title = _('sioc')

    templatable = False

    content_type = 'text/xml'

    def call(self):

        self.w(u'<?xml version="1.0" encoding="%s"?>\n' % self._cw.encoding)

        self.w(u'''<rdf:RDF

             xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"

             xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"

             xmlns:owl="http://www.w3.org/2002/07/owl#"

             xmlns:foaf="http://xmlns.com/foaf/0.1/"

             xmlns:sioc="http://rdfs.org/sioc/ns#"

             xmlns:sioctype="http://rdfs.org/sioc/types#"

             xmlns:dcterms="http://purl.org/dc/terms/">\n''')

        for i in xrange(self.cw_rset.rowcount):

            self.cell_call(i, 0)

        self.w(u'</rdf:RDF>\n')

    def cell_call(self, row, col):

        self.wview('sioc_element', self.cw_rset, row=row, col=col)

class SIOCContainerView(EntityView):

    __regid__ = 'sioc_element'

    __select__ = EntityView.__select__ & implements(ISiocContainer)

    templatable = False

    content_type = 'text/xml'

    def cell_call(self, row, col):

        entity = self.cw_rset.complete_entity(row, col)

        sioct = xml_escape(entity.isioc_type())

        self.w(u'<sioc:%s rdf:about="%s">\n'

               % (sioct, xml_escape(entity.absolute_url())))

        self.w(u'<dcterms:title>%s</dcterms:title>'

               % xml_escape(entity.dc_title()))

        self.w(u'<dcterms:created>%s</dcterms:created>'

               % entity.creation_date)

        self.w(u'<dcterms:modified>%s</dcterms:modified>'

               % entity.modification_date)

        self.w(u'<!-- FIXME : here be items -->')#entity.isioc_items()

        self.w(u'</sioc:%s>\n' % sioct)

class SIOCItemView(EntityView):

    __regid__ = 'sioc_element'

    __select__ = EntityView.__select__ & implements(ISiocItem)

    templatable = False

    content_type = 'text/xml'

    def cell_call(self, row, col):

        entity = self.cw_rset.complete_entity(row, col)

        sioct = xml_escape(entity.isioc_type())

        self.w(u'<sioc:%s rdf:about="%s">\n'

               %  (sioct, xml_escape(entity.absolute_url())))

        self.w(u'<dcterms:title>%s</dcterms:title>'

               % xml_escape(entity.dc_title()))

        self.w(u'<dcterms:created>%s</dcterms:created>'

               % entity.creation_date)

        self.w(u'<dcterms:modified>%s</dcterms:modified>'

               % entity.modification_date)

        if entity.content:

            self.w(u'<sioc:content>%s</sioc:content>'''

                   % xml_escape(entity.isioc_content()))

        if entity.related('entry_of'):

            self.w(u'<sioc:has_container rdf:resource="%s"/>\n'

                   % xml_escape(entity.isioc_container().absolute_url()))

        if entity.creator:

            self.w(u'<sioc:has_creator>\n')

            self.w(u'<sioc:User rdf:about="%s">\n'

                   % xml_escape(entity.creator.absolute_url()))

            self.w(entity.creator.view('foaf'))

            self.w(u'</sioc:User>\n')

            self.w(u'</sioc:has_creator>\n')

        self.w(u'<!-- FIXME : here be topics -->')#entity.isioc_topics()

        self.w(u'<!-- FIXME : here be replies -->')#entity.isioc_replies()

        self.w(u' </sioc:%s>\n' % sioct)