from cubicweb.devtools.testlib import CubicWebTC

from cubicweb.web import facet

class BaseFacetTC(CubicWebTC):

    def prepare_rqlst(self):

        req = self.request()

        rset = self.execute('CWUser X')

        rqlst = rset.syntax_tree().copy()

        req.vreg.rqlhelper.annotate(rqlst)

        mainvar, baserql = facet.prepare_facets_rqlst(rqlst, rset.args)

        self.assertEquals(mainvar.name, 'X')

        self.assertEquals(baserql, 'Any X WHERE X is CWUser')

        self.assertEquals(rqlst.as_string(), 'DISTINCT Any  WHERE X is CWUser')

        return req, rset, rqlst, mainvar

    def test_relation(self):

        req, rset, rqlst, mainvar = self.prepare_rqlst()

        f = facet.RelationFacet(req, rset=rset,

                                rqlst=rqlst.children[0],

                                filtered_variable=mainvar)

        f.rtype = 'in_group'

        f.role = 'subject'

        f.target_attr = 'name'

        guests, managers = [eid for eid, in self.execute('CWGroup G ORDERBY GN '

                                                         'WHERE G name GN, G name IN ("guests", "managers")')]

        self.assertEquals(f.vocabulary(),

                          [(u'guests', guests), (u'managers', managers)])

        # ensure rqlst is left unmodified

        self.assertEquals(rqlst.as_string(), 'DISTINCT Any  WHERE X is CWUser')

        #rqlst = rset.syntax_tree()

        self.assertEquals(f.possible_values(),

                          [str(guests), str(managers)])

        # ensure rqlst is left unmodified

        self.assertEquals(rqlst.as_string(), 'DISTINCT Any  WHERE X is CWUser')

        req.form[f.__regid__] = str(guests)

        f.add_rql_restrictions()

        # selection is cluttered because rqlst has been prepared for facet (it

        # is not in real life)

        self.assertEquals(f.rqlst.as_string(),

                          'DISTINCT Any  WHERE X is CWUser, X in_group D, D eid %s' % guests)

    def test_relationattribute(self):

        req, rset, rqlst, mainvar = self.prepare_rqlst()

        f = facet.RelationAttributeFacet(req, rset=rset,

                                         rqlst=rqlst.children[0],

                                         filtered_variable=mainvar)

        f.rtype = 'in_group'

        f.role = 'subject'

        f.target_attr = 'name'

        self.assertEquals(f.vocabulary(),

                          [(u'guests', u'guests'), (u'managers', u'managers')])

        # ensure rqlst is left unmodified

        self.assertEquals(rqlst.as_string(), 'DISTINCT Any  WHERE X is CWUser')

        #rqlst = rset.syntax_tree()

        self.assertEquals(f.possible_values(),

                          ['guests', 'managers'])

        # ensure rqlst is left unmodified

        self.assertEquals(rqlst.as_string(), 'DISTINCT Any  WHERE X is CWUser')

        req.form[f.__regid__] = 'guests'

        f.add_rql_restrictions()

        # selection is cluttered because rqlst has been prepared for facet (it

        # is not in real life)

        self.assertEquals(f.rqlst.as_string(),

                          "DISTINCT Any  WHERE X is CWUser, X in_group E, E name 'guests'")

    def test_attribute(self):

        req, rset, rqlst, mainvar = self.prepare_rqlst()

        f = facet.AttributeFacet(req, rset=rset,

                                 rqlst=rqlst.children[0],

                                 filtered_variable=mainvar)

        f.rtype = 'login'

        self.assertEquals(f.vocabulary(),

                          [(u'admin', u'admin'), (u'anon', u'anon')])

        # ensure rqlst is left unmodified

        self.assertEquals(rqlst.as_string(), 'DISTINCT Any  WHERE X is CWUser')

        #rqlst = rset.syntax_tree()

        self.assertEquals(f.possible_values(),

                          ['admin', 'anon'])

        # ensure rqlst is left unmodified

        self.assertEquals(rqlst.as_string(), 'DISTINCT Any  WHERE X is CWUser')

        req.form[f.__regid__] = 'admin'

        f.add_rql_restrictions()

        # selection is cluttered because rqlst has been prepared for facet (it

        # is not in real life)

        self.assertEquals(f.rqlst.as_string(),

                          "DISTINCT Any  WHERE X is CWUser, X login 'admin'")