from django.test import TestCase
from django.contrib.auth import get_user_model
from django.urls import reverse

from rest_framework.test import APIClient
from rest_framework import status

from core.models import Tag, Recipe

from recipe.serializer import TagSerializer

TAGS_URL = reverse('recipe:tag-list')

class PublicTagsApiTest(TestCase):
    
    def setUp(self):
        self.client = APIClient()

    def test_login_required(self):
        res = self.client.get(TAGS_URL)

        self.assertEqual(res.status_code, status.HTTP_401_UNAUTHORIZED)

class PrivateTagsApiTest(TestCase):
    
    def setUp(self):
        self.user = get_user_model().objects.create_user(
            'teste@teste',
            '<PASSWORD>'
        )
        self.client = APIClient()
        self.client.force_authenticate(self.user)

    def test_retrieve_tags(self):
        Tag.objects.create(user=self.user,name='Vegan')
        Tag.objects.create(user=self.user,name='Dessert')

        res = self.client.get(TAGS_URL)
        tags = Tag.objects.all().order_by('-name')
        serializer = TagSerializer(tags, many=True)
        self.assertEqual(res.status_code, status.HTTP_200_OK)
        self.assertEqual(res.data, serializer.data)
    
    def test_tags_limited_to_user(self):
        user1 = get_user_model().objects.create_user(
            '<EMAIL>',
            '<PASSWORD>'
        )
        Tag.objects.create(user=user1, name='Fruity')
        tag = Tag.objects.create(user=self.user, name='Confort food')

        res = self.client.get(TAGS_URL)

        self.assertEqual(res.status_code, status.HTTP_200_OK)
        self.assertEqual(len(res.data),1)
        self.assertEqual(res.data[0]['name'], tag.name)
    
    def test_create_tag_successful(self):
        payload = {'name': '<NAME>'  }
        self.client.post(TAGS_URL, payload)

        exists = Tag.objects.filter(
            user=self.user,
            name=payload['name']
        ).exists()
        self.assertTrue(exists)

    def test_create_tag_invalid(self):
        payload= {'name':''}
        res = self.client.post(TAGS_URL, payload)
        
        self.assertEqual(res.status_code, status.HTTP_400_BAD_REQUEST)

    def test_retrieve_tags_assigned_to_recipes(self):
        """Test filtering tags by those assigned to recipes"""
        tag1 = Tag.objects.create(user=self.user, name='Breakfast')
        tag2 = Tag.objects.create(user=self.user, name='Lunch')
        recipe = Recipe.objects.create(
            title='Coriander eggs on toast',
            time_minutes=10,
            price=5.00,
            user=self.user,
        )
        recipe.tags.add(tag1)

        res = self.client.get(TAGS_URL, {'assigned_only': 1})

        serializer1 = TagSerializer(tag1)
        serializer2 = TagSerializer(tag2)
        self.assertIn(serializer1.data, res.data)
        self.assertNotIn(serializer2.data, res.data)

    def test_retrieve_tags_assigned_unique(self):
        """Test filtering tags by assigned returns unique items"""
        tag = Tag.objects.create(user=self.user, name='Breakfast')
        recipe1 = Recipe.objects.create(
            title='Pancakes',
            time_minutes=5,
            price=3.00,
            user=self.user
        )
        recipe1.tags.add(tag)
        recipe2 = Recipe.objects.create(
            title='Porridge',
            time_minutes=3,
            price=2.00,
            user=self.user
        )
        recipe2.tags.add(tag)

        res = self.client.get(TAGS_URL, {'assigned_only': 1})

        self.assertEqual(len(res.data), 1)
from django.test import TestCase
from django.contrib.auth import get_user_model
from django.urls import reverse

from rest_framework.test import APIClient
from rest_framework import status

from core.models import Tag, Recipe

from recipe.serializer import TagSerializer

TAGS_URL = reverse('recipe:tag-list')

class PublicTagsApiTest(TestCase):
    
    def setUp(self):
        self.client = APIClient()

    def test_login_required(self):
        res = self.client.get(TAGS_URL)

        self.assertEqual(res.status_code, status.HTTP_401_UNAUTHORIZED)

class PrivateTagsApiTest(TestCase):
    
    def setUp(self):
        self.user = get_user_model().objects.create_user(
            'teste@teste',
            '<PASSWORD>'
        )
        self.client = APIClient()
        self.client.force_authenticate(self.user)

    def test_retrieve_tags(self):
        Tag.objects.create(user=self.user,name='Vegan')
        Tag.objects.create(user=self.user,name='Dessert')

        res = self.client.get(TAGS_URL)
        tags = Tag.objects.all().order_by('-name')
        serializer = TagSerializer(tags, many=True)
        self.assertEqual(res.status_code, status.HTTP_200_OK)
        self.assertEqual(res.data, serializer.data)
    
    def test_tags_limited_to_user(self):
        user1 = get_user_model().objects.create_user(
            '<EMAIL>',
            '<PASSWORD>'
        )
        Tag.objects.create(user=user1, name='Fruity')
        tag = Tag.objects.create(user=self.user, name='Confort food')

        res = self.client.get(TAGS_URL)

        self.assertEqual(res.status_code, status.HTTP_200_OK)
        self.assertEqual(len(res.data),1)
        self.assertEqual(res.data[0]['name'], tag.name)
    
    def test_create_tag_successful(self):
        payload = {'name': '<NAME>'  }
        self.client.post(TAGS_URL, payload)

        exists = Tag.objects.filter(
            user=self.user,
            name=payload['name']
        ).exists()
        self.assertTrue(exists)

    def test_create_tag_invalid(self):
        payload= {'name':''}
        res = self.client.post(TAGS_URL, payload)
        
        self.assertEqual(res.status_code, status.HTTP_400_BAD_REQUEST)

    def test_retrieve_tags_assigned_to_recipes(self):
        """Test filtering tags by those assigned to recipes"""
        tag1 = Tag.objects.create(user=self.user, name='Breakfast')
        tag2 = Tag.objects.create(user=self.user, name='Lunch')
        recipe = Recipe.objects.create(
            title='Coriander eggs on toast',
            time_minutes=10,
            price=5.00,
            user=self.user,
        )
        recipe.tags.add(tag1)

        res = self.client.get(TAGS_URL, {'assigned_only': 1})

        serializer1 = TagSerializer(tag1)
        serializer2 = TagSerializer(tag2)
        self.assertIn(serializer1.data, res.data)
        self.assertNotIn(serializer2.data, res.data)

    def test_retrieve_tags_assigned_unique(self):
        """Test filtering tags by assigned returns unique items"""
        tag = Tag.objects.create(user=self.user, name='Breakfast')
        recipe1 = Recipe.objects.create(
            title='Pancakes',
            time_minutes=5,
            price=3.00,
            user=self.user
        )
        recipe1.tags.add(tag)
        recipe2 = Recipe.objects.create(
            title='Porridge',
            time_minutes=3,
            price=2.00,
            user=self.user
        )
        recipe2.tags.add(tag)

        res = self.client.get(TAGS_URL, {'assigned_only': 1})

        self.assertEqual(len(res.data), 1)
Test filtering tags by those assigned to recipes Test filtering tags by assigned returns unique items