import uuid
from django.test import TestCase
from rest_framework.exceptions import ValidationError
from modules.crm.services import ClientService
from modules.crm.models import Client


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

    def test_create_client_success(self):
        client = ClientService.create_client(self.base_data)
        self.assertIsNotNone(client.pk)
        self.assertEqual(client.name, "Service Client")

    def test_create_client_duplicate_tax_id_raises(self):
        # create first
        Client.objects.create(**self.base_data)
        dup = dict(self.base_data)
        dup["email"] = f"client+{uuid.uuid4()}@example.test"
        with self.assertRaises(ValidationError):
            ClientService.create_client(dup)

    def test_update_client_success(self):
        client = Client.objects.create(**self.base_data)
        updated = ClientService.update_client(client, {"city": "NewCity"})
        self.assertEqual(updated.city, "NewCity")