# -*- encoding: utf-8 -*-
from lxml import etree as ET
from lxml.builder import E, ElementMaker

from openerp.tests import common
import unittest2

Field = E.field

class TestNodeLocator(common.BaseCase):
    """
    The node locator returns None when it can not find a node, and the first
    match when it finds something (no jquery-style node sets)
    """
    def setUp(self):
        super(TestNodeLocator, self).setUp()
        self.Views = self.registry('ir.ui.view')

    def test_no_match_xpath(self):
        """
        xpath simply uses the provided @expr pattern to find a node
        """
        node = self.Views.locate_node(
            E.root(E.foo(), E.bar(), E.baz()),
            E.xpath(expr="//qux"))
        self.assertIsNone(node)

    def test_match_xpath(self):
        bar = E.bar()
        node = self.Views.locate_node(
            E.root(E.foo(), bar, E.baz()),
            E.xpath(expr="//bar"))
        self.assertIs(node, bar)


    def test_no_match_field(self):
        """
        A field spec will match by @name against all fields of the view
        """
        node = self.Views.locate_node(
            E.root(E.foo(), E.bar(), E.baz()),
            Field(name="qux"))
        self.assertIsNone(node)

        node = self.Views.locate_node(
            E.root(Field(name="foo"), Field(name="bar"), Field(name="baz")),
            Field(name="qux"))
        self.assertIsNone(node)

    def test_match_field(self):
        bar = Field(name="bar")
        node = self.Views.locate_node(
            E.root(Field(name="foo"), bar, Field(name="baz")),
            Field(name="bar"))
        self.assertIs(node, bar)


    def test_no_match_other(self):
        """
        Non-xpath non-fields are matched by node name first
        """
        node = self.Views.locate_node(
            E.root(E.foo(), E.bar(), E.baz()),
            E.qux())
        self.assertIsNone(node)

    def test_match_other(self):
        bar = E.bar()
        node = self.Views.locate_node(
            E.root(E.foo(), bar, E.baz()),
            E.bar())
        self.assertIs(bar, node)

    def test_attribute_mismatch(self):
        """
        Non-xpath non-field are filtered by matching attributes on spec and
        matched nodes
        """
        node = self.Views.locate_node(
            E.root(E.foo(attr='1'), E.bar(attr='2'), E.baz(attr='3')),
            E.bar(attr='5'))
        self.assertIsNone(node)

    def test_attribute_filter(self):
        match = E.bar(attr='2')
        node = self.Views.locate_node(
            E.root(E.bar(attr='1'), match, E.root(E.bar(attr='3'))),
            E.bar(attr='2'))
        self.assertIs(node, match)

    def test_version_mismatch(self):
        """
        A @version on the spec will be matched against the view's version
        """
        node = self.Views.locate_node(
            E.root(E.foo(attr='1'), version='4'),
            E.foo(attr='1', version='3'))
        self.assertIsNone(node)

class TestViewInheritance(common.TransactionCase):
    def arch_for(self, name, view_type='form'):
        return ET.tostring(ET.Element(view_type, string=name))

    def makeView(self, name, parent=None, arch=None):
        v = {
            'model': self.model,
            'name': name,
            'arch': arch or self.arch_for(name),
            'inherit_id': parent,
        }
        view_id = self.View.create(self.cr, self.uid, v)
        self.ids[name] = view_id
        return view_id

    def setUp(self):
        super(TestViewInheritance, self).setUp()

        self.model = 'dummy'
        self.View = self.registry('ir.ui.view')
        self._init = self.View.pool._init
        self.View.pool._init = False
        self.ids = {}

        a = self.makeView("A")
        a1 = self.makeView("A1", a)
        a11 = self.makeView("A11", a1)
        self.makeView("A111", a11)
        self.makeView("A12", a1)
        a2 = self.makeView("A2", a)
        self.makeView("A21", a2)
        a22 = self.makeView("A22", a2)
        self.makeView("A221", a22)

        b = self.makeView('B', arch=self.arch_for("B", 'tree'))
        self.makeView('B1', b, arch=self.arch_for("B1", 'tree'))
        c = self.makeView('C', arch=self.arch_for("C", 'tree'))
        self.View.write(self.cr, self.uid, c, {'priority': 1})

    def tearDown(self):
        self.View.pool._init = self._init
        super(TestViewInheritance, self).tearDown()

    @unittest2.skip("Not tested")
    def test_get_inheriting_views_arch(self):
        self.assertEqual(self.View.get_inheriting_views_arch(
            self.cr, self.uid, self.ids['A'], self.model), [
            (self.arch_for('A1'), self.ids['A1']),
            (self.arch_for('A2'), self.ids['A2']),
        ])

        self.assertEqual(self.View.get_inheriting_views_arch(
            self.cr, self.uid, self.ids['A21'], self.model),
            [])

        self.assertEqual(self.View.get_inheriting_views_arch(
            self.cr, self.uid, self.ids['A11'], self.model),
            [(self.arch_for('A111'), self.ids['A111'])])

    @unittest2.skip("Not tested")
    def test_iter(self):
        descendents = list(self.View.iter(self.cr, self.uid, self.ids['A1'], self.model))
        self.assertEqual(descendents, [
            (self.ids[name], self.arch_for(name))
            for name in ['A1', 'A11', 'A111', 'A12']
        ])
        descendents = list(self.View.iter(
            self.cr, self.uid, self.ids['A2'], self.model, exclude_base=True))
        self.assertEqual(descendents, [
            (self.ids[name], self.arch_for(name))
            for name in ['A21', 'A22', 'A221']
        ])

    @unittest2.skip("Not tested")
    def test_root_ancestor(self):
        A_id = self.ids['A']
        root_id = self.View.root_ancestor(self.cr, self.uid, view_id=A_id)
        self.assertEqual(root_id, A_id,
             "when given a root view, operation should be id")

        root_id = self.View.root_ancestor(
            self.cr, self.uid, view_id=self.ids['A11'])
        self.assertEqual(root_id, A_id)

        root_id = self.View.root_ancestor(
            self.cr, self.uid, view_id=self.ids['A221'])
        self.assertEqual(root_id, A_id)

        root_id = self.View.root_ancestor(
            self.cr, self.uid, view_id=self.ids['B1'])
        self.assertEqual(root_id, self.ids['B'])

    @unittest2.skip("Not tested")
    def test_no_root_ancestor(self):
        with self.assertRaises(self.View.NoViewError):
            self.View.root_ancestor(self.cr, self.uid, view_id=12345678)

    @unittest2.skip("Not tested")
    def test_default_view(self):
        default = self.View.default_view(
            self.cr, self.uid, model=self.model, view_type='form')
        self.assertEqual(default, self.ids['A'])

        default_tree = self.View.default_view(
            self.cr, self.uid, model=self.model, view_type='tree')
        self.assertEqual(default_tree, self.ids['C'])

    @unittest2.skip("Not tested")
    def test_no_default_view(self):
        with self.assertRaises(self.View.NoDefaultError):
            self.View.default_view(
                self.cr, self.uid, model='does.not.exist', view_type='form')

        with self.assertRaises(self.View.NoDefaultError):
            self.View.default_view(
                self.cr, self.uid, model=self.model, view_type='graph')

    @unittest2.skip("Not tested")
    def test_apply_inherited_archs(self):
        self.fail()

    @unittest2.skip("Not tested")
    def test_apply_inheritance_specs(self):
        self.fail()

class TestViewCombined(common.TransactionCase):
    """
    Test fallback operations of View.read_combined:
    * defaults mapping
    * ?
    """

class TestNoModel(common.TransactionCase):
    @unittest2.skip("Not tested")
    def test_create_view_nomodel(self):
        View = self.registry('ir.ui.view')
        view_id = View.create(self.cr, self.uid, {
            'name': 'dummy',
            'arch': '<form/>',
            'inherit_id': False
        })
        fields = ['name', 'arch', 'type', 'priority', 'inherit_id', 'model']
        [view] = View.read(self.cr, self.uid, [view_id], fields)
        self.assertEqual(view, {
            'id': view_id,
            'name': 'dummy',
            'arch': '<form/>',
            'type': 'form',
            'priority': 16,
            'inherit_id': False,
            'model': False,
        })

    arch = E.body(
        E.div(
            E.h1("Title"),
            id="header"),
        E.p("Welcome!"),
        E.div(
            E.hr(),
            E.p("Copyright copyrighter", {'class': 'legalese'}),
            id="footer"),
        {'class': "index"},)
    def test_fields_mess(self):
        """
        Try to call __view_look_dom_arch without a model provided, will need
        to be altered once it's broken up into sane components
        """
        View = self.registry('ir.ui.view')

        sarch, fields = View._view__view_look_dom_arch(
            self.cr, self.uid, None, self.arch, None)

        self.assertEqual(sarch, ET.tostring(self.arch, encoding='utf-8'))
        self.assertEqual(fields, {})

    def test_mess_translation(self):
        """
        Test if translations work correctly without a model
        """
        View = self.registry('ir.ui.view')
        self.registry('res.lang').load_lang(self.cr, self.uid, 'fr_FR')
        self.registry('ir.translation').create(self.cr, self.uid, {
            'name': '',
            'type': 'view',
            'lang': 'fr_FR',
            'src': 'Copyright copyrighter',
            'value': u"Copyrighter, tous droits réservés",
        })
        sarch, fields = View._view__view_look_dom_arch(
            self.cr, self.uid, None,self.arch, None, {'lang': 'fr_FR'})
        self.assertEqual(
            sarch,
            ET.tostring(self.arch, encoding='utf-8')
                .replace('Copyright copyrighter',
                         'Copyrighter, tous droits réservés'))
        self.assertEqual(fields, {})