from django.contrib.auth.models import User
from django.http import QueryDict
from django.test import TestCase
from django.utils.translation import activate
from django.urls import reverse

from .models import CaseStudy, CaseStudyDraft


class CaseStudyDraftAPITests(TestCase):

    test_user = 'testuser1'
    test_pass = '12345'

    def setUp(self):
        test_user1 = User.objects.create_user(username=self.test_user, password=self.test_pass)
        test_user1.save()

        activate('en-gb')

        next_url = QueryDict.fromkeys(['next',], reverse('drafts'))

        self.login_url = reverse('auth_login') + '?' + next_url.urlencode()

    def login(self):
        return self.client.login(username=self.test_user, password=self.test_pass)

    def test_get_not_logged_in(self):
        response = self.client.get(reverse('drafts'), follow=True)
        self.assertRedirects(response, self.login_url)

    def test_put_not_logged_in(self):
        response = self.client.put(reverse('drafts'), follow=True)
        self.assertRedirects(response, self.login_url)

    def test_delete_not_logged_in(self):
        response = self.client.delete(reverse('drafts'), follow=True)
        self.assertRedirects(response, self.login_url)

    def test_get_and_put(self):
        login = self.login()

        # No draft should currently exist
        response = self.client.get(reverse('drafts'))
        self.assertEqual(response.status_code, 404)
        self.assertEqual(response.content, b"")

        # Putting a draft should succeed
        response = self.client.put(reverse('drafts'), '{"test":1}')
        self.assertEqual(response.status_code, 201)

        # We should get it back
        response = self.client.get(reverse('drafts'))
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response['Content-Type'], "application/json")
        self.assertEqual(response.content, b'{"test":1}')

        # Updating it should succeed
        response = self.client.put(reverse('drafts'), '{"test":2}')
        self.assertEqual(response.status_code, 200)

        # We should get the update back
        response = self.client.get(reverse('drafts'))
        self.assertEqual(response.status_code, 200)
        self.assertEqual(response['Content-Type'], "application/json")
        self.assertEqual(response.content, b'{"test":2}')

    def test_delete(self):
        login = self.login()

        # Create a draft
        response = self.client.put(reverse('drafts'), '{"test":1}')
        self.assertEqual(response.status_code, 201)

        # Delete it again
        response = self.client.delete(reverse('drafts'))
        self.assertEqual(response.status_code, 204)

        # Check it's not there
        response = self.client.get(reverse('drafts'))
        self.assertEqual(response.status_code, 404)


class CaseStudyTests(TestCase):

    def test_get_renewable_generation_detail_when_empty(self):
        """get_renewable_generation_detail() should return the empty string."""
        case_study = CaseStudy()
        self.assertIs(case_study.get_renewable_generation_detail(), "")

    def test_get_renewable_generation_detail_with_geo(self):
        """get_renewable_generation_detail() should return just the description"""
        case_study = CaseStudy(generation_technology='GEOT')
        self.assertEqual(case_study.get_renewable_generation_detail(), "Geothermal electricity")

    def test_get_renewable_generation_detail_with_wind(self):
        """get_renewable_generation_detail() should return the description prefixed with 'wind power'"""
        case_study = CaseStudy(generation_technology='SSWE')
        self.assertTrue(case_study.get_renewable_generation_detail().startswith("Wind energy"))

    def test_get_renewable_generation_detail_with_other(self):
        """get_renewable_generation_detail() should return the detail provided in .generation_technology_other"""
        case_study = CaseStudy(generation_technology='OTHR', generation_technology_other='Warp drive')
        self.assertEqual(case_study.get_renewable_generation_detail(), "Warp drive")

    def test_get_negative_case_reasons_no_other_1(self):
        """Test with case having no 'other' entry"""
        case_study = CaseStudy(negative_case_reasons=['VOLR','ALAB'])
        self.assertEqual(case_study.get_negative_case_reasons_no_other(),
            [ 'Violation of land rights'
            , 'Abusive labour practices'
            ])

    def test_get_negative_case_reasons_no_other_2(self):
        """Test with case having an 'other' entry"""
        case_study = CaseStudy(negative_case_reasons=['VOLR','ALAB','OTHR'])
        self.assertEqual(case_study.get_negative_case_reasons_no_other(),
            [ 'Violation of land rights'
            , 'Abusive labour practices'
            ])