"""
Unit tests for projects router.

Tests project management endpoints including:
- Create project
- List projects
- Get project details
- Update project
- Delete project
- Archive/unarchive project
"""

import pytest


@pytest.mark.unit
class TestCreateProject:
    """Tests for project creation"""

    def test_create_project_success(self):
        """Test successful project creation"""

        # Assert returns 201 with project details
        # Assert project has UUID
        # Assert created_at timestamp is set

    def test_create_project_missing_required_fields(self):
        """Test creation fails with missing required fields"""
        # Assert returns 422

    def test_create_project_invalid_project_type(self):
        """Test creation fails with invalid project type"""
        # Assert returns 422

    def test_create_project_duplicate_name_same_owner(self):
        """Test can create duplicate name for same owner"""
        # Different users can have projects with same name
        pass

    def test_create_project_name_too_long(self):
        """Test creation fails with excessively long name"""

        # Assert returns 422


@pytest.mark.unit
class TestListProjects:
    """Tests for listing projects"""

    def test_list_user_projects(self):
        """Test listing projects for authenticated user"""
        # Assert returns list of user's projects
        # Assert does not include other users' projects

    def test_list_projects_pagination(self):
        """Test project list pagination"""
        # Create multiple projects
        # Assert pagination works (limit, offset)

    def test_list_projects_filtering(self):
        """Test filtering projects by status"""
        # Assert can filter by active, archived, etc.

    def test_list_projects_sorting(self):
        """Test sorting projects"""
        # Assert can sort by created_at, updated_at, name


@pytest.mark.unit
class TestGetProjectDetails:
    """Tests for retrieving project details"""

    def test_get_project_success(self):
        """Test getting existing project"""
        # Assert returns project with all details

    def test_get_nonexistent_project(self):
        """Test getting non-existent project"""
        # Assert returns 404

    def test_get_project_unauthorized_access(self):
        """Test cannot access other user's project"""
        # Assert returns 403 or 404


@pytest.mark.unit
class TestUpdateProject:
    """Tests for updating projects"""

    def test_update_project_name(self):
        """Test updating project name"""

        # Assert returns 200 with updated project

    def test_update_project_description(self):
        """Test updating project description"""

        # Assert returns 200

    def test_update_unauthorized(self):
        """Test cannot update other user's project"""
        # Assert returns 403

    def test_update_nonexistent_project(self):
        """Test updating non-existent project"""
        # Assert returns 404


@pytest.mark.unit
class TestDeleteProject:
    """Tests for deleting projects"""

    def test_delete_project_success(self):
        """Test successful project deletion"""
        # Assert returns 200 or 204

    def test_delete_nonexistent_project(self):
        """Test deleting non-existent project"""
        # Assert returns 404

    def test_delete_unauthorized(self):
        """Test cannot delete other user's project"""
        # Assert returns 403

    def test_hard_delete_vs_soft_delete(self):
        """Test whether deletion is hard or soft"""
        # Check if project still exists in database


@pytest.mark.unit
class TestArchiveProject:
    """Tests for archiving/unarchiving projects"""

    def test_archive_project(self):
        """Test archiving a project"""
        # Assert project marked as archived
        # Assert archived_at timestamp set

    def test_unarchive_project(self):
        """Test unarchiving a project"""
        # Assert is_archived set to False

    def test_archived_projects_not_in_default_list(self):
        """Test archived projects not in default list"""
        # Unless explicitly requested


@pytest.mark.unit
class TestProjectPhaseManagement:
    """Tests for project phase management"""

    def test_get_current_phase(self):
        """Test getting current project phase"""
        # Assert returns current phase

    def test_advance_phase(self):
        """Test advancing to next phase"""
        # Assert phase updated
        # Assert phase_changed_at timestamp set

    def test_cannot_advance_to_invalid_phase(self):
        """Test cannot advance to invalid phase"""
        pass


@pytest.mark.unit
class TestProjectTeamManagement:
    """Tests for project team management"""

    def test_add_team_member(self):
        """Test adding team member to project"""

        # Assert returns 200
        # Assert member added to team

    def test_remove_team_member(self):
        """Test removing team member"""
        # Assert member removed

    def test_update_team_member_role(self):
        """Test updating team member role"""
        # Assert role updated

    def test_list_project_team(self):
        """Test listing project team members"""
        # Assert returns list of team members


@pytest.mark.unit
class TestProjectErrorHandling:
    """Tests for error handling"""

    def test_invalid_project_id_format(self):
        """Test with invalid project ID format"""
        # Assert returns 422

    def test_database_failure_handling(self):
        """Test handling database failure"""
        # Assert returns 500 with appropriate error

    def test_concurrent_updates_handled(self):
        """Test concurrent project updates"""
        # Should handle race conditions
