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

from apps.clients.models import Client
from apps.projects.models import Project
from apps.projects.services.projects import (
    create_project,
    toggle_project_archive,
    update_project,
)
from apps.users.models import User
from apps.workspaces.models import Workspace, WorkspaceMembership


class ProjectServiceTests(TestCase):
    @classmethod
    def setUpTestData(cls):
        cls.owner = User.objects.create_user(mobile="09120000041", password="secret123")
        cls.member = User.objects.create_user(mobile="09120000042", password="secret123")
        cls.outsider = User.objects.create_user(mobile="09120000043", password="secret123")
        cls.workspace = Workspace.objects.create(name="Projects Services", owner=cls.owner)
        WorkspaceMembership.objects.create(
            workspace=cls.workspace,
            user=cls.member,
            role=WorkspaceMembership.Role.MEMBER,
            is_active=True,
        )
        cls.account_client = Client.objects.create(workspace=cls.workspace, name="Acme")

    def test_create_project_creates_workspace_shared_project(self):
        project = create_project(
            user=self.member,
            workspace=self.workspace,
            name="Alpha",
            client=self.account_client,
            description="Desc",
            color="#123456",
        )

        self.assertEqual(project.name, "Alpha")
        self.assertEqual(project.client, self.account_client)
        self.assertEqual(project.description, "Desc")

    def test_create_project_rejects_non_member(self):
        with self.assertRaises(PermissionDenied):
            create_project(self.outsider, self.workspace, "Alpha")

    def test_create_project_rejects_duplicate_name(self):
        Project.objects.create(workspace=self.workspace, name="Alpha")

        with self.assertRaises(ValidationError) as exc:
            create_project(self.owner, self.workspace, "Alpha")

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

    def test_update_project_updates_client_and_fields(self):
        second_client = Client.objects.create(workspace=self.workspace, name="Globex")
        project = Project.objects.create(
            workspace=self.workspace,
            name="Alpha",
            client=self.account_client,
        )

        updated = update_project(
            project,
            name="Beta",
            client=str(second_client.id),
            description="Updated",
            color="#abcdef",
        )

        self.assertEqual(updated.name, "Beta")
        self.assertEqual(updated.client, second_client)
        self.assertEqual(updated.description, "Updated")
        self.assertEqual(updated.color, "#abcdef")

    def test_update_project_rejects_duplicate_name(self):
        Project.objects.create(workspace=self.workspace, name="Beta")
        project = Project.objects.create(
            workspace=self.workspace,
            name="Alpha",
            client=self.account_client,
        )

        with self.assertRaises(ValidationError) as exc:
            update_project(project, name="Beta", client=str(self.account_client.id))

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

    def test_toggle_project_archive_flips_state(self):
        project = Project.objects.create(workspace=self.workspace, name="Alpha")

        toggle_project_archive(project)
        self.assertTrue(Project.objects.get(id=project.id).is_archived)

        toggle_project_archive(project)
        self.assertFalse(Project.objects.get(id=project.id).is_archived)