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

:organization: Logilab

:copyright: 2001-2009 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 import Unauthorized

from cubicweb.selectors import implements

from cubicweb.web.htmlwidgets import BoxWidget, BoxMenu, RawBoxItem

from cubicweb.web import action, box

from cubicweb.web.views import primary

class FollowAction(action.Action):

    id = 'follow'

    __select__ = implements('Bookmark')

    title = _('follow')

    category = 'mainactions'

    def url(self):

        return self.rset.get_entity(self.row or 0, self.col or 0).actual_url()

class BookmarkPrimaryView(primary.PrimaryView):

    __select__ = implements('Bookmark')

    def cell_call(self, row, col):

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

        entity = self.complete_entity(row, col)

        self.w(u' ')

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

        self.w(u"%s : %s" % (self.req._('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.req._('Used by:'), ', '.join(xml_escape(u.name())

                                                                   for u in entity.bookmarked_by)))

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

class BookmarksBox(box.UserRQLBoxTemplate):

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

    id = 'bookmarks_box'

    order = 40

    title = _('bookmarks')

    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')

    etype = 'Bookmark'

    rtype = 'bookmarked_by'

    def call(self, **kwargs):

        req = self.req

        ueid = req.user.eid

        try:

            rset = req.execute(self.rql, {'x': ueid})

        except Unauthorized:

            # can't access to something in the query, forget this box

            return

        box = BoxWidget(req._(self.title), self.id)

        box.listing_class = 'sideBox'

        rschema = self.schema.rschema(self.rtype)

        eschema = self.schema.eschema(self.etype)

        candelete = rschema.has_perm(req, 'delete', toeid=ueid)

        if candelete:

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

        else:

            dlink = None

        for bookmark in rset.entities():

            label = '<a href="%s">%s</a>' % (xml_escape(bookmark.action_url()),

                                             xml_escape(bookmark.title))

            if candelete:

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

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

                label = '%s %s' % (dlink, label)

            box.append(RawBoxItem(label))

        if eschema.has_perm(req, 'add') and rschema.has_perm(req, 'add', toeid=ueid):

            boxmenu = 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()

            url = self.create_url(self.etype, __linkto=linkto, path=path)

            boxmenu.append(self.mk_action(req._('bookmark this page'), url,

                                          category='manage', id='bookmark'))

            if rset:

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

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

                    erset = 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}, 'x',

                                                build_descr=False)

                    bookmarksrql %= {'x': ueid}

                if erset:

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

                    boxmenu.append(self.mk_action(self.req._('edit bookmarks'), url, category='manage'))

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

                                        target='subject')

            boxmenu.append(self.mk_action(self.req._('pick existing bookmarks'), url, category='manage'))

            box.append(boxmenu)

        if not box.is_empty():

            box.render(self.w)