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


User = get_user_model()


class UserModelTests(TestCase):
	def setUp(self):
		self.user_data = {
			'email_address': 'Test@Example.com',
			'username': 'TestUser',
			'first_name': 'Test',
			'last_name': 'User',
			'date_of_birth': '1990-01-01',
		}

	def test_create_user_and_properties(self):
		user = User.objects.create_user(password='pass1234', **self.user_data)
		self.assertIsNotNone(user.pk)
		# email should be normalized by the manager
		self.assertEqual(user.email_address.lower(), 'test@example.com')
		# username should be saved lowercase by model.save()
		self.assertEqual(user.username, 'testuser')
		# full_name property
		self.assertEqual(user.full_name, 'Test User')

	def test_create_superuser(self):
		su = User.objects.create_superuser(password='adminpass', **self.user_data)
		self.assertTrue(su.is_staff)
		self.assertTrue(su.pk)


class UserAPITests(TestCase):
	def setUp(self):
		self.client = APIClient()
		self.user = User.objects.create_user(
			password='pass1234',
			email_address='apiuser@example.com',
			username='apiuser',
			first_name='API',
			last_name='User',
			date_of_birth='1995-05-05',
		)

	def test_list_users(self):
		url = '/api/users/'
		resp = self.client.get(url)
		self.assertEqual(resp.status_code, status.HTTP_200_OK)
		# Should contain at least the created user
		usernames = [u.get('username') for u in resp.json()]
		self.assertIn(self.user.username, usernames)