from django.test import TestCase, Client
from django.urls import reverse
from django.contrib.auth import get_user_model
from booking.models import Booking
from common.models import LinesModel, ContainerTypeModel

class BookingViewsTestCase(TestCase):
    def setUp(self):
        self.client = Client()
        DepotUser = get_user_model()
        self.user = DepotUser.objects.create_user(username='testuser', password='password', user_type='EM')
        self.client.login(username='testuser', password='password')
        self.line = LinesModel.objects.create(name='Test Line')
        self.container_type = ContainerTypeModel.objects.create(name='20ft')
        self.booking = Booking.objects.create(
            number='BOOK123',
            container_type=self.container_type,
            container_count=10,
            line=self.line,
            created_by=self.user.id,
            updated_by=self.user.id
        )

    def test_booking_list_view(self):
        response = self.client.get(reverse('booking-list'))
        self.assertEqual(response.status_code, 200)
        self.assertTemplateUsed(response, 'booking/booking-list.html')
        self.assertContains(response, self.booking.number)

    def test_booking_create_view(self):
        response = self.client.post(reverse('booking-create'), {
            'number': 'BOOK456',
            'container_type': self.container_type.id,
            'container_count': 5,
            'line': self.line.id,
        })
        self.assertEqual(response.status_code, 302)
        self.assertTrue(Booking.objects.filter(number='BOOK456').exists())

    def test_booking_update_view(self):
        response = self.client.post(reverse('booking-update', args=[self.booking.id]), {
            'number': 'BOOK123-updated',
            'container_type': self.container_type.id,
            'container_count': 15,
            'line': self.line.id,
        })
        self.assertEqual(response.status_code, 302)
        self.booking.refresh_from_db()
        self.assertEqual(self.booking.number, 'BOOK123-updated')