# copyright 2003-2010 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/>.

"""Primary view for bookmarks + user's bookmarks box"""

__docformat__ = "restructuredtext en"

_ = unicode

from logilab.mtconverter import xml_escape

from cubicweb import Unauthorized

from cubicweb.predicates import is_instance, one_line_rset

from cubicweb.web import action, component, htmlwidgets, formwidgets as fw

from cubicweb.web.views import uicfg, primary

from cubicweb.web.views.ajaxcontroller import ajaxfunc

_abaa = uicfg.actionbox_appearsin_addmenu

_abaa.tag_subject_of(('*', 'bookmarked_by', '*'), False)

_abaa.tag_object_of(('*', 'bookmarked_by', '*'), False)

_afs = uicfg.autoform_section

_afs.tag_object_of(('*', 'bookmarked_by', 'CWUser'), 'main', 'metadata')

_afs.tag_attribute(('Bookmark', 'path'), 'main', 'attributes')

_afs.tag_attribute(('Bookmark', 'path'), 'muledit', 'attributes')

_affk = uicfg.autoform_field_kwargs

_affk.tag_attribute(('Bookmark', 'path'), {'widget': fw.EditableURLWidget})

class FollowAction(action.Action):

    __regid__ = 'follow'

    __select__ = one_line_rset() & is_instance('Bookmark')

    title = _('follow')

    category = 'mainactions'

    def url(self):

        return self.cw_rset.get_entity(self.cw_row or 0, self.cw_col or 0).actual_url()

class BookmarkPrimaryView(primary.PrimaryView):

    __select__ = is_instance('Bookmark')

    def cell_call(self, row, col):

        """the primary view for bookmark entity"""

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

        self.w(u' ')

        self.w(u"<span class='title'><b>")

        self.w(u"%s : %s" % (self._cw._('Bookmark'), xml_escape(entity.title)))

        self.w(u"</b></span>")

        self.w(u'<br/><br/><div class="content"><a href="%s">' % (

            xml_escape(entity.actual_url())))

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

        self.w(u'<p>%s%s</p>' % (self._cw._('Used by:'), ', '.join(xml_escape(u.name())

                                                                   for u in entity.bookmarked_by)))

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

class BookmarksBox(component.CtxComponent):

    """display a box containing all user's bookmarks"""

    __regid__ = 'bookmarks_box'

    title = _('bookmarks')

    order = 40

    rql = ('Any B,T,P ORDERBY lower(T) '

           'WHERE B is Bookmark,B title T, B path P, B bookmarked_by U, '

           'U eid %(x)s')

    def init_rendering(self):

        ueid = self._cw.user.eid

        self.bookmarks_rset = self._cw.execute(self.rql, {'x': ueid})

        rschema = self._cw.vreg.schema.rschema('bookmarked_by')

        eschema = self._cw.vreg.schema.eschema('Bookmark')

        self.can_delete = rschema.has_perm(self._cw, 'delete', toeid=ueid)

        self.can_edit = (eschema.has_perm(self._cw, 'add') and

                         rschema.has_perm(self._cw, 'add', toeid=ueid))

        if not self.bookmarks_rset and not self.can_edit:

            raise component.EmptyComponent()

        self.items = []

    def render_body(self, w):

        ueid = self._cw.user.eid

        req = self._cw

        if self.can_delete:

            req.add_js('cubicweb.ajax.js')

        for bookmark in self.bookmarks_rset.entities():

            label = self.link(bookmark.title, bookmark.action_url())

            if self.can_delete:

                dlink = u'[<a class="action" href="javascript:removeBookmark(%s)" title="%s">-</a>]' % (

                    bookmark.eid, req._('delete this bookmark'))

                label = '<div>%s %s</div>' % (dlink, label)

            self.append(label)

        if self.can_edit:

            menu = htmlwidgets.BoxMenu(req._('manage bookmarks'))

            linkto = 'bookmarked_by:%s:subject' % ueid

            # use a relative path so that we can move the instance without

            # loosing bookmarks

            path = req.relative_path()

            # XXX if vtitle specified in params, extract it and use it as

            # default value for bookmark's title

            url = req.vreg['etypes'].etype_class('Bookmark').cw_create_url(

                req, __linkto=linkto, path=path)

            menu.append(self.link(req._('bookmark this page'), url))

            if self.bookmarks_rset:

                if req.user.is_in_group('managers'):

                    bookmarksrql = 'Bookmark B WHERE B bookmarked_by U, U eid %s' % ueid

                    erset = self.bookmarks_rset

                else:

                    # we can't edit shared bookmarks we don't own

                    bookmarksrql = 'Bookmark B WHERE B bookmarked_by U, B owned_by U, U eid %(x)s'

                    erset = req.execute(bookmarksrql, {'x': ueid},

                                        build_descr=False)

                    bookmarksrql %= {'x': ueid}

                if erset:

                    url = req.build_url(vid='muledit', rql=bookmarksrql)

                    menu.append(self.link(req._('edit bookmarks'), url))

            url = req.user.absolute_url(vid='xaddrelation', rtype='bookmarked_by',

                                        target='subject')

            menu.append(self.link(req._('pick existing bookmarks'), url))

            self.append(menu)

        self.render_items(w)

@ajaxfunc

def delete_bookmark(self, beid):

    rql = 'DELETE B bookmarked_by U WHERE B eid %(b)s, U eid %(u)s'

    self._cw.execute(rql, {'b': int(beid), 'u' : self._cw.user.eid})