"""Specific views for users

:organization: Logilab

:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

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

"""

__docformat__ = "restructuredtext en"

from logilab.common.decorators import cached

from logilab.mtconverter import html_escape

from cubicweb.schema import display_name

from cubicweb.web import INTERNAL_FIELD_VALUE

from cubicweb.web.form import EntityForm

from cubicweb.web.views.baseviews import PrimaryView, EntityView

try:

class EUserPrimaryView(PrimaryView):

    accepts = ('EUser',)

    skip_attrs = ('firstname', 'surname')

    def iter_relations(self, entity):

        # don't want to display user's entities

        for rschema, targetschemas, x in super(EUserPrimaryView, self).iter_relations(entity):

            if x == 'object' and rschema.type in ('owned_by', 'for_user'):

                continue

            yield rschema, targetschemas, x

    def content_title(self, entity):

        return entity.name()

    def is_side_related(self, rschema, eschema):

        return  rschema.type in ['interested_in', 'tags', 

                                 'todo_by', 'bookmarked_by',

                                 ]

class FoafView(EntityView):

    id = 'foaf'

    accepts = ('EUser',)

    title = _('foaf')

    templatable = False

    content_type = 'text/xml'

    def call(self):

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

        self.w(u'<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"\n')

        self.w(u'xmlns:rdfs="http://www.w3org/2000/01/rdf-schema#"\n')

        self.w(u'xmlns:foaf="http://xmlns.com/foaf/0.1/">\n')

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

            self.cell_call(i, 0)

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

    def cell_call(self, row, col):

        entity = self.complete_entity(row, col)

        self.w(u'''<foaf:PersonalProfileDocument rdf:about="">

                      <foaf:maker rdf:resource="%s"/>

                      <foaf:primaryTopic rdf:resource="%s"/>

                   </foaf:PersonalProfileDocument>''' % (entity.absolute_url(), entity.absolute_url()))

        self.w(u'<foaf:Person rdf:ID="%s">\n' % entity.eid)

        self.w(u'<foaf:name>%s</foaf:name>\n' % html_escape(entity.dc_long_title()))

        if entity.surname:

            self.w(u'<foaf:family_name>%s</foaf:family_name>\n'

                   % html_escape(entity.surname))

        if entity.firstname:

            self.w(u'<foaf:givenname>%s</foaf:givenname>\n'

                   % html_escape(entity.firstname))

        emailaddr = entity.get_email()

        if emailaddr:

            m = hashlib.sha1()

            m.update(html_escape(emailaddr))

            crypt_sha1 = m.hexdigest()

            self.w(u'<foaf:mbox_sha1sum>%s</foaf:mbox_sha1sum>\n' % crypt_sha1)

            self.w(u'</foaf:Person>\n')

class EditGroups(EntityForm):

    """displays a simple euser / egroups editable table"""

    id = 'editgroups'

    accepts = ('EUser',)

    def call(self):

        self.req.add_css('cubicweb.acl.css')            

        _ = self.req._

        self.w(u'<form id="editgroup" method="post" action="edit">')

        self.w(u'<table id="groupedit">\n')

        self.w(u'<tr>')

        self.w(u'<th>%s</th>' % display_name(self.req, 'EUser'))

        self.w(u''.join(u'<th>%s</th>' % _(gname) for geid, gname in self.egroups))

        self.w(u'</tr>')

        for row in xrange(len(self.rset)):

            self.build_table_line(row)

        self.w(u'</table>')

        self.w(u'<fieldset>')

        self.w(self.button_cancel())

        self.w(self.button_ok())

        self.w(u'</fieldset>')

        self.w(u'</form>')

    def build_table_line(self, row):

        euser = self.entity(row)

        euser_groups = [group.name for group in euser.in_group]

        if euser_groups:

            self.w(u'<tr>')

        else:

            self.w(u'<tr class="nogroup">')

        self.w(u'<th><fieldset>')

        self.w(u'<input type="hidden" name="eid" value="%s" />' % euser.eid)

        self.w(u'<input type="hidden" name="__type:%s" value="EUser" />' % euser.eid)

        # this should not occur (for now) since in_group relation is mandatory

        if not euser_groups:

            self.w(u'<input type="hidden" name="edits-in_group:%s" value="%s">' %

                   (euser.eid, INTERNAL_FIELD_VALUE))

        self.w(euser.dc_title())

        self.w(u'</fieldset></th>')

        for geid, gname in self.egroups:

            self.w(u'<td><fieldset>')

            if gname in euser_groups:

                self.w(u'<input type="hidden" name="edits-in_group:%s" value="%s" />' %

                       (euser.eid, geid))

                self.w(u'<input type="checkbox" name="in_group:%s" value="%s" checked="checked" />' %

                       (euser.eid, geid))

            else:

                self.w(u'<input type="checkbox" name="in_group:%s" value="%s" />' %

                       (euser.eid, geid))

            self.w(u'</fieldset></td>')

        self.w(u'</tr>\n')

    @property

    @cached

    def egroups(self):

        groups = self.req.execute('Any G, N ORDERBY N WHERE G is EGroup, G name N')

        return [(geid, gname) for geid, gname in groups.rows if gname != 'owners']