import uuid
from django.test import TestCase, RequestFactory
from unittest.mock import patch
from modules.crm.serializers import ClientSerializer
from modules.crm.models import Client


class ClientSerializerTests(TestCase):
    def setUp(self):
        self.factory = RequestFactory()
        self.base_data = {
            "name": "Ser Client",
            "client_type": "legal",
            "tax_id": str(uuid.uuid4()),
            "email": f"client+{uuid.uuid4()}@example.test",
            "address": "Street 1",
            "city": "City",
            "postal_code": "00000",
        }

    @patch("modules.crm.serializers.ClientService.create_client")
    def test_create_calls_service(self, mock_create):
        # Prepare mock return value
        mock_instance = Client(**self.base_data)
        mock_instance.pk = 1
        mock_create.return_value = mock_instance

        serializer = ClientSerializer(data=self.base_data, context={"request": self.factory.post("/")})
        self.assertTrue(serializer.is_valid(), serializer.errors)
        result = serializer.save()
        mock_create.assert_called_once()
        self.assertEqual(result.pk, 1)

    @patch("modules.crm.serializers.ClientService.update_client")
    def test_update_calls_service(self, mock_update):
        client = Client.objects.create(**self.base_data)
        mock_update.return_value = client

        serializer = ClientSerializer(instance=client, data={"city": "UpdatedCity"}, partial=True, context={"request": self.factory.put("/")})
        self.assertTrue(serializer.is_valid(), serializer.errors)
        result = serializer.save()
        mock_update.assert_called_once()
        self.assertEqual(result, client)