from django.test import TestCase
from rest_framework.exceptions import ValidationError

from apps.clients.models import Client
from apps.clients.services.clients import create_client, update_client
from apps.users.models import User
from apps.workspaces.models import Workspace, WorkspaceMembership


class ClientServiceTests(TestCase):
    @classmethod
    def setUpTestData(cls):
        cls.owner = User.objects.create_user(mobile="09120000001", password="secret123")
        cls.member = User.objects.create_user(mobile="09120000002", password="secret123")
        cls.outsider = User.objects.create_user(mobile="09120000003", password="secret123")
        cls.workspace = Workspace.objects.create(name="Clients", owner=cls.owner)
        WorkspaceMembership.objects.create(
            workspace=cls.workspace,
            user=cls.member,
            role=WorkspaceMembership.Role.MEMBER,
            is_active=True,
        )

    def test_create_client_creates_record_for_workspace_member(self):
        client = create_client(
            self.member,
            self.workspace.id,
            "Acme",
            notes="Priority account",
        )

        self.assertEqual(client.name, "Acme")
        self.assertEqual(client.notes, "Priority account")
        self.assertEqual(client.workspace, self.workspace)
        self.assertEqual(client.created_by, self.member)

    def test_create_client_rejects_non_member(self):
        with self.assertRaises(ValidationError) as exc:
            create_client(self.outsider, self.workspace.id, "Acme")

        self.assertIn("workspace", exc.exception.detail)

    def test_create_client_rejects_duplicate_name_in_workspace(self):
        Client.objects.create(workspace=self.workspace, name="Acme")

        with self.assertRaises(ValidationError) as exc:
            create_client(self.owner, self.workspace.id, "Acme")

        self.assertIn("name", exc.exception.detail)

    def test_update_client_updates_name_and_notes(self):
        client = Client.objects.create(workspace=self.workspace, name="Acme", notes="Old")

        updated = update_client(client, name="Globex", notes="New")

        self.assertEqual(updated.name, "Globex")
        self.assertEqual(updated.notes, "New")

    def test_update_client_rejects_duplicate_new_name(self):
        Client.objects.create(workspace=self.workspace, name="Globex")
        client = Client.objects.create(workspace=self.workspace, name="Acme")

        with self.assertRaises(ValidationError) as exc:
            update_client(client, name="Globex")

        self.assertIn("name", exc.exception.detail)