from django.test import TestCase, Client
from django.urls import reverse
from django.contrib.auth import get_user_model
from django.core.exceptions import ValidationError
from django.contrib.contenttypes.models import ContentType
from django.contrib.gis.geos import Point
from django.http import HttpResponse
from typing import cast, Optional, Tuple
from .models import Park, ParkArea
from companies.models import Company
from location.models import Location

User = get_user_model()

def create_test_location(park: Park) -> Location:
    """Helper function to create a test location"""
    return Location.objects.create(
        content_type=ContentType.objects.get_for_model(Park),
        object_id=park.id,
        name='Test Park Location',
        location_type='park',
        street_address='123 Test St',
        city='Test City',
        state='TS',
        country='Test Country',
        postal_code='12345',
        point=Point(-118.2437, 34.0522)
    )

class ParkModelTests(TestCase):
    @classmethod
    def setUpTestData(cls) -> None:
        # Create test user
        cls.user = User.objects.create_user(
            username='testuser',
            email='test@example.com',
            password='testpass123'
        )
        
        # Create test company
        cls.company = Company.objects.create(
            name='Test Company',
            website='http://example.com'
        )
        
        # Create test park
        cls.park = Park.objects.create(
            name='Test Park',
            owner=cls.company,
            status='OPERATING',
            website='http://testpark.com'
        )
        
        # Create test location
        cls.location = create_test_location(cls.park)

    def test_park_creation(self) -> None:
        """Test park instance creation and field values"""
        self.assertEqual(self.park.name, 'Test Park')
        self.assertEqual(self.park.owner, self.company)
        self.assertEqual(self.park.status, 'OPERATING')
        self.assertEqual(self.park.website, 'http://testpark.com')
        self.assertTrue(self.park.slug)

    def test_park_str_representation(self) -> None:
        """Test string representation of park"""
        self.assertEqual(str(self.park), 'Test Park')

    def test_park_location(self) -> None:
        """Test park location relationship"""
        self.assertTrue(self.park.location.exists())
        if location := self.park.location.first():
            self.assertEqual(location.street_address, '123 Test St')
            self.assertEqual(location.city, 'Test City')
            self.assertEqual(location.state, 'TS')
            self.assertEqual(location.country, 'Test Country')
            self.assertEqual(location.postal_code, '12345')

    def test_park_coordinates(self) -> None:
        """Test park coordinates property"""
        coords = self.park.coordinates
        self.assertIsNotNone(coords)
        if coords:
            self.assertAlmostEqual(coords[0], 34.0522, places=4)  # latitude
            self.assertAlmostEqual(coords[1], -118.2437, places=4)  # longitude

    def test_park_formatted_location(self) -> None:
        """Test park formatted_location property"""
        expected = '123 Test St, Test City, TS, 12345, Test Country'
        self.assertEqual(self.park.formatted_location, expected)

class ParkAreaTests(TestCase):
    def setUp(self) -> None:
        # Create test company
        self.company = Company.objects.create(
            name='Test Company',
            website='http://example.com'
        )
        
        # Create test park
        self.park = Park.objects.create(
            name='Test Park',
            owner=self.company,
            status='OPERATING'
        )
        
        # Create test location
        self.location = create_test_location(self.park)
        
        # Create test area
        self.area = ParkArea.objects.create(
            park=self.park,
            name='Test Area',
            description='Test Description'
        )

    def test_area_creation(self) -> None:
        """Test park area creation"""
        self.assertEqual(self.area.name, 'Test Area')
        self.assertEqual(self.area.park, self.park)
        self.assertTrue(self.area.slug)

    def test_area_str_representation(self) -> None:
        """Test string representation of park area"""
        expected = f'Test Area at {self.park.name}'
        self.assertEqual(str(self.area), expected)

    def test_area_get_by_slug(self) -> None:
        """Test get_by_slug class method"""
        area, is_historical = ParkArea.get_by_slug(self.area.slug)
        self.assertEqual(area, self.area)
        self.assertFalse(is_historical)

class ParkViewTests(TestCase):
    def setUp(self) -> None:
        self.client = Client()
        self.user = User.objects.create_user(
            username='testuser',
            email='test@example.com',
            password='testpass123'
        )
        self.company = Company.objects.create(
            name='Test Company',
            website='http://example.com'
        )
        self.park = Park.objects.create(
            name='Test Park',
            owner=self.company,
            status='OPERATING'
        )
        self.location = create_test_location(self.park)

    def test_park_list_view(self) -> None:
        """Test park list view"""
        response = cast(HttpResponse, self.client.get(reverse('parks:park_list')))
        self.assertEqual(response.status_code, 200)
        content = response.content.decode('utf-8')
        self.assertIn(self.park.name, content)

    def test_park_detail_view(self) -> None:
        """Test park detail view"""
        response = cast(HttpResponse, self.client.get(
            reverse('parks:park_detail', kwargs={'slug': self.park.slug})
        ))
        self.assertEqual(response.status_code, 200)
        content = response.content.decode('utf-8')
        self.assertIn(self.park.name, content)
        self.assertIn('123 Test St', content)

    def test_park_area_detail_view(self) -> None:
        """Test park area detail view"""
        area = ParkArea.objects.create(
            park=self.park,
            name='Test Area'
        )
        response = cast(HttpResponse, self.client.get(
            reverse('parks:area_detail', 
                   kwargs={'park_slug': self.park.slug, 'area_slug': area.slug})
        ))
        self.assertEqual(response.status_code, 200)
        content = response.content.decode('utf-8')
        self.assertIn(area.name, content)