# -*- coding: utf-8; -*-

from unittest import TestCase
from unittest.mock import patch

from pyramid import testing

from wuttjamaican.conf import WuttaConfig
from wuttaweb.grids import base
from wuttaweb.forms import FieldList


class TestGrid(TestCase):

    def setUp(self):
        self.config = WuttaConfig(defaults={
            'wutta.web.menus.handler_spec': 'tests.util:NullMenuHandler',
        })
        self.app = self.config.get_app()

        self.request = testing.DummyRequest(wutta_config=self.config, use_oruga=False)

        self.pyramid_config = testing.setUp(request=self.request, settings={
            'mako.directories': ['wuttaweb:templates'],
        })

    def tearDown(self):
        testing.tearDown()

    def make_grid(self, request=None, **kwargs):
        return base.Grid(request or self.request, **kwargs)

    def test_constructor(self):

        # empty
        grid = self.make_grid()
        self.assertIsNone(grid.key)
        self.assertEqual(grid.columns, [])
        self.assertIsNone(grid.data)

        # now with columns
        grid = self.make_grid(columns=['foo', 'bar'])
        self.assertIsInstance(grid.columns, FieldList)
        self.assertEqual(grid.columns, ['foo', 'bar'])

    def test_vue_tagname(self):
        grid = self.make_grid()
        self.assertEqual(grid.vue_tagname, 'wutta-grid')

    def test_vue_component(self):
        grid = self.make_grid()
        self.assertEqual(grid.vue_component, 'WuttaGrid')

    def test_get_columns(self):
        model = self.app.model

        # empty
        grid = self.make_grid()
        self.assertEqual(grid.columns, [])
        self.assertEqual(grid.get_columns(), [])

        # explicit
        grid = self.make_grid(columns=['foo', 'bar'])
        self.assertEqual(grid.columns, ['foo', 'bar'])
        self.assertEqual(grid.get_columns(), ['foo', 'bar'])

        # derived from model
        grid = self.make_grid(model_class=model.Setting)
        self.assertEqual(grid.columns, ['name', 'value'])
        self.assertEqual(grid.get_columns(), ['name', 'value'])

    def test_remove(self):
        grid = self.make_grid(columns=['one', 'two', 'three', 'four'])
        self.assertEqual(grid.columns, ['one', 'two', 'three', 'four'])
        grid.remove('two', 'three')
        self.assertEqual(grid.columns, ['one', 'four'])

    def test_set_renderer(self):
        grid = self.make_grid(columns=['foo', 'bar'])
        self.assertEqual(grid.renderers, {})

        def render1(record, key, value):
            pass

        # basic
        grid.set_renderer('foo', render1)
        self.assertIs(grid.renderers['foo'], render1)

        def render2(record, key, value, extra=None):
            return extra

        # can pass kwargs to get a partial
        grid.set_renderer('foo', render2, extra=42)
        self.assertIsNot(grid.renderers['foo'], render2)
        self.assertEqual(grid.renderers['foo'](None, None, None), 42)

    def test_linked_columns(self):
        grid = self.make_grid(columns=['foo', 'bar'])
        self.assertEqual(grid.linked_columns, [])
        self.assertFalse(grid.is_linked('foo'))

        grid.set_link('foo')
        self.assertEqual(grid.linked_columns, ['foo'])
        self.assertTrue(grid.is_linked('foo'))
        self.assertFalse(grid.is_linked('bar'))

        grid.set_link('bar')
        self.assertEqual(grid.linked_columns, ['foo', 'bar'])
        self.assertTrue(grid.is_linked('foo'))
        self.assertTrue(grid.is_linked('bar'))

        grid.set_link('foo', False)
        self.assertEqual(grid.linked_columns, ['bar'])
        self.assertFalse(grid.is_linked('foo'))
        self.assertTrue(grid.is_linked('bar'))

    def test_render_vue_tag(self):
        grid = self.make_grid(columns=['foo', 'bar'])
        html = grid.render_vue_tag()
        self.assertEqual(html, '<wutta-grid></wutta-grid>')

    def test_render_vue_template(self):
        self.pyramid_config.include('pyramid_mako')
        self.pyramid_config.add_subscriber('wuttaweb.subscribers.before_render',
                                           'pyramid.events.BeforeRender')

        grid = self.make_grid(columns=['foo', 'bar'])
        html = grid.render_vue_template()
        self.assertIn('<script type="text/x-template" id="wutta-grid-template">', html)

    def test_get_vue_columns(self):

        # error if no columns are set
        grid = self.make_grid()
        self.assertRaises(ValueError, grid.get_vue_columns)

        # otherwise get back field/label dicts
        grid = self.make_grid(columns=['foo', 'bar'])
        columns = grid.get_vue_columns()
        first = columns[0]
        self.assertEqual(first['field'], 'foo')
        self.assertEqual(first['label'], 'Foo')

    def test_get_vue_data(self):

        # empty if no columns defined
        grid = self.make_grid()
        data = grid.get_vue_data()
        self.assertEqual(data, [])

        # typical data is a list
        mydata = [
            {'foo': 'bar'},
        ]
        grid = self.make_grid(columns=['foo'], data=mydata)
        data = grid.get_vue_data()
        self.assertEqual(data, [{'foo': 'bar'}])

        # if grid has actions, that list may be supplemented
        grid.actions.append(base.GridAction(self.request, 'view', url='/blarg'))
        data = grid.get_vue_data()
        self.assertIsNot(data, mydata)
        self.assertEqual(data, [{'foo': 'bar', '_action_url_view': '/blarg'}])

        # also can override value rendering
        grid.set_renderer('foo', lambda record, key, value: "blah blah")
        data = grid.get_vue_data()
        self.assertEqual(data, [{'foo': 'blah blah', '_action_url_view': '/blarg'}])


class TestGridAction(TestCase):

    def setUp(self):
        self.config = WuttaConfig()
        self.request = testing.DummyRequest(wutta_config=self.config, use_oruga=False)

    def make_action(self, key, **kwargs):
        return base.GridAction(self.request, key, **kwargs)

    def test_render_icon(self):

        # icon is derived from key by default
        action = self.make_action('blarg')
        html = action.render_icon()
        self.assertIn('<i class="fas fa-blarg">', html)

        # oruga not yet supported
        self.request.use_oruga = True
        self.assertRaises(NotImplementedError, action.render_icon)

    def test_render_label(self):

        # label is derived from key by default
        action = self.make_action('blarg')
        label = action.render_label()
        self.assertEqual(label, "Blarg")

        # otherwise use what caller provides
        action = self.make_action('foo', label="Bar")
        label = action.render_label()
        self.assertEqual(label, "Bar")

    def test_render_icon_and_label(self):
        action = self.make_action('blarg')
        with patch.multiple(action,
                            render_icon=lambda: 'ICON',
                            render_label=lambda: 'LABEL'):
            html = action.render_icon_and_label()
            self.assertEqual('ICON LABEL', html)

    def test_get_url(self):
        obj = {'foo': 'bar'}

        # null by default
        action = self.make_action('blarg')
        url = action.get_url(obj)
        self.assertIsNone(url)

        # or can be "static"
        action = self.make_action('blarg', url='/foo')
        url = action.get_url(obj)
        self.assertEqual(url, '/foo')

        # or can be "dynamic"
        action = self.make_action('blarg', url=lambda o, i: '/yeehaw')
        url = action.get_url(obj)
        self.assertEqual(url, '/yeehaw')