# copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

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

#

# This file is part of CubicWeb.

#

# CubicWeb 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)

# any later version.

#

# CubicWeb 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 CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

"""

__docformat__ = "restructuredtext en"

_ = unicode

from datetime import timedelta

from warnings import warn

from rql import nodes

from logilab.mtconverter import TransformError, xml_escape

from cubicweb import NoSelectableObject, tags

from cubicweb.selectors import yes, empty_rset, one_etype_rset, match_kwargs

from cubicweb.schema import display_name

from cubicweb.view import EntityView, AnyRsetView, View

from cubicweb.uilib import cut, printable_value

from cubicweb.web.views import calendar

class NullView(AnyRsetView):

    __regid__ = 'null'

    __select__ = yes()

    def call(self, **kwargs):

        pass

    cell_call = call

class NoResultView(View):

    __select__ = empty_rset()

    def call(self, **kwargs):

        self.w(u'<div class="searchMessage"><strong>%s</strong></div>\n'

               % self._cw._('No result matching query'))

class FinalView(AnyRsetView):

    """

    __regid__ = 'final'

    # record generated i18n catalog messages

    _('%d years')

    _('%d months')

    _('%d weeks')

    _('%d days')

    _('%d hours')

    _('%d minutes')

    _('%d seconds')

    _('%d years')

    _('%d months')

    _('%d weeks')

    _('%d days')

    _('%d hours')

    _('%d minutes')

    _('%d seconds')

    def cell_call(self, row, col, props=None, format='text/html'):

        etype = self.cw_rset.description[row][col]

        value = self.cw_rset.rows[row][col]

        if value is None:

            self.w(u'')

            return

        if etype == 'String':

            entity, rtype = self.cw_rset.related_entity(row, col)

            if entity is not None:

                # yes !

                self.w(entity.printable_value(rtype, value, format=format))

                return

        elif etype in ('Time', 'Interval'):

            if etype == 'Interval' and isinstance(value, (int, long)):

                # `date - date`, unlike `datetime - datetime` gives an int

                # (number of days), not a timedelta

                # XXX should rql be fixed to return Int instead of Interval in

                #     that case? that would be probably the proper fix but we

                #     loose information on the way...

                value = timedelta(days=value)

            # value is DateTimeDelta but we have no idea about what is the

            # reference date here, so we can only approximate years and months

            if format == 'text/html':

                space = ' '

            else:

                space = ' '

            if value.days > 730: # 2 years

                self.w(self._cw.__('%%d%syears' % space) % (value.days // 365))

            elif value.days > 60: # 2 months

                self.w(self._cw.__('%%d%smonths' % space) % (value.days // 30))

            elif value.days > 14: # 2 weeks

                self.w(self._cw.__('%%d%sweeks' % space) % (value.days // 7))

            elif value.days > 2:

                self.w(self._cw.__('%%d%sdays' % space) % int(value.days))

            elif value.seconds > 3600:

                self.w(self._cw.__('%%d%shours' % space) % int(value.seconds // 3600))

            elif value.seconds >= 120:

                self.w(self._cw.__('%%d%sminutes' % space) % int(value.seconds // 60))

            else:

                self.w(self._cw.__('%%d%sseconds' % space) % int(value.seconds))

            return

        self.wdata(printable_value(self._cw, etype, value, props))

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

class OneLineView(EntityView):

    __regid__ = 'oneline'

    title = _('oneline')

    def cell_call(self, row, col, **kwargs):

        """the one line view for an entity: linked text view

        """

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

        self.w(u'<a href="%s">' % xml_escape(entity.absolute_url()))

        self.w(xml_escape(self._cw.view('text', self.cw_rset, row=row, col=col)))

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

class TextView(EntityView):

    __regid__ = 'text'

    title = _('text')

    content_type = 'text/plain'

    def call(self, **kwargs):

        """

        rset = self.cw_rset

        if rset is None:

            raise NotImplementedError, self

        for i in xrange(len(rset)):

            self.wview(self.__regid__, rset, row=i, **kwargs)

            if len(rset) > 1:

                self.w(u"\n")

    def cell_call(self, row, col=0, **kwargs):

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

        self.w(cut(entity.dc_title(),

                   self._cw.property_value('navigation.short-line-size')))

    __regid__ = 'textincontext'

    title = None # not listed as a possible view

    def cell_call(self, row, col):

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

        self.w(entity.dc_title())

class OutOfContextTextView(InContextTextView):

    __regid__ = 'textoutofcontext'

    def cell_call(self, row, col):

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

        self.w(entity.dc_long_title())

# list views ##################################################################

class ListView(EntityView):

    __regid__ = 'list'

    title = _('list')

    item_vid = 'listitem'

    def call(self, klass=None, title=None, subvid=None, listid=None, **kwargs):

        """display a list of entities by calling their <item_vid> view

        :param listid: the DOM id to use for the root element

        """

        # XXX much of the behaviour here should probably be outside this view

        if subvid is None and 'subvid' in self._cw.form:

            subvid = self._cw.form.pop('subvid') # consume it

        if listid:

            listid = u' id="%s"' % listid

        else:

            listid = u''

        if title:

            self.w(u'<div%s class="%s"><h4>%s</h4>\n' % (listid, klass or 'section', title))

            self.w(u'<ul>\n')

        else:

            self.w(u'<ul%s class="%s">\n' % (listid, klass or 'section'))

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

            self.cell_call(row=i, col=0, vid=subvid, **kwargs)

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

        if title:

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

    def cell_call(self, row, col=0, vid=None, **kwargs):

        self.w(u'<li>')

        self.wview(self.item_vid, self.cw_rset, row=row, col=col, vid=vid, **kwargs)

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

class ListItemView(EntityView):

    __regid__ = 'listitem'

    @property

    def redirect_vid(self):

        if self._cw.search_state[0] == 'normal':

            return 'outofcontext'

        return 'outofcontext-search'

    def cell_call(self, row, col, vid=None, **kwargs):

        if not vid:

            vid = self.redirect_vid

        try:

            self.wview(vid, self.cw_rset, row=row, col=col, **kwargs)

        except NoSelectableObject:

            if vid == self.redirect_vid:

                raise

            self.wview(self.redirect_vid, self.cw_rset, row=row, col=col, **kwargs)

class SimpleListView(ListItemView):