from unittest.mock import patch
from flask.testing import FlaskClient

from app.test.fixtures import client, app  # noqa
from .service import WidgetService
from .schema import WidgetSchema
from .model import Widget
from .interface import WidgetInterface
from . import BASE_ROUTE


def make_widget(id: int = 123, name: str = 'Test widget',
                purpose: str = 'Test purpose') -> Widget:
    return Widget(
        widget_id=id, name=name, purpose=purpose
    )


class TestWidgetResource:
    @patch.object(WidgetService, 'get_all',
                  lambda: [make_widget(123, name='Test Widget 1'),
                           make_widget(456, name='Test Widget 2')])
    def test_get(self, client: FlaskClient):  # noqa
        with client:
            results = client.get(f'/api/{BASE_ROUTE}',
                                 follow_redirects=True).get_json()
            expected = WidgetSchema(many=True).dump(
                [make_widget(123, name='Test Widget 1'),
                 make_widget(456, name='Test Widget 2')]
            ).data
            for r in results:
                assert r in expected

    @patch.object(WidgetService, 'create',
                  lambda create_request: Widget(**create_request))
    def test_post(self, client: FlaskClient):  # noqa
        with client:

            payload = dict(name='Test widget', purpose='Test purpose')
            result = client.post(f'/api/{BASE_ROUTE}/', json=payload).get_json()
            expected = WidgetSchema().dump(Widget(
                name=payload['name'],
                purpose=payload['purpose'],
            )).data
            assert result == expected


def fake_update(widget: Widget, changes: WidgetInterface) -> Widget:
    # To fake an update, just return a new object
    updated_Widget = Widget(widget_id=widget.widget_id,
                            name=changes['name'],
                            purpose=changes['purpose'])
    return updated_Widget


class TestWidgetIdResource:
    @patch.object(WidgetService, 'get_by_id',
                  lambda id: make_widget(id=id))
    def test_get(self, client: FlaskClient):  # noqa
        with client:
            result = client.get(f'/api/{BASE_ROUTE}/123').get_json()
            expected = make_widget(id=123)
            print(f'result = ', result)
            assert result['widgetId'] == expected.widget_id

    @patch.object(WidgetService, 'delete_by_id',
                  lambda id: id)
    def test_delete(self, client: FlaskClient):  # noqa
        with client:
            result = client.delete(f'/api/{BASE_ROUTE}/123').get_json()
            expected = dict(status='Success', id=123)
            assert result == expected

    @patch.object(WidgetService, 'get_by_id',
                  lambda id: make_widget(id=id))
    @patch.object(WidgetService, 'update', fake_update)
    def test_put(self, client: FlaskClient):  # noqa
        with client:
            result = client.put(f'/api/{BASE_ROUTE}/123',
                                json={'name': 'New Widget',
                                      'purpose': 'New purpose'}).get_json()
            expected = WidgetSchema().dump(
                Widget(widget_id=123, name='New Widget', purpose='New purpose')).data
            assert result == expected