"""P14.1 — Projects API tests.

Covers:
- List projects
- Get project by ID
- Create project
- Update project
- Delete project
- Project ownership and permissions
"""
import pytest


class TestProjects:
    """Project management endpoints."""

    def test_list_projects(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions):
        """User can list projects they have access to."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        project1 = make_project(name="Project 1")
        project2 = make_project(name="Project 2")
        
        resp = client.get("/projects", headers=auth_header(user))
        assert resp.status_code == 200
        data = resp.json()
        assert isinstance(data, list)

    def test_get_project_by_id(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions):
        """Get specific project details."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        project = make_project(name="Test Project", owner_id=user.id)
        
        resp = client.get(f"/projects/{project.id}", headers=auth_header(user))
        assert resp.status_code == 200
        data = resp.json()
        assert data["id"] == project.id
        assert data["name"] == "Test Project"

    def test_create_project(self, client, db, make_user, auth_header, seed_roles_and_permissions):
        """User can create project."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        
        resp = client.post(
            "/projects",
            json={
                "name": "New Project",
                "description": "Test description",
                "project_code": "TEST"
            },
            headers=auth_header(user)
        )
        assert resp.status_code == 201
        data = resp.json()
        assert data["name"] == "New Project"
        assert data["project_code"] == "TEST"
        assert "id" in data

    def test_update_project(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions):
        """Project owner can update project."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        project = make_project(name="Old Name", owner_id=user.id)
        
        resp = client.patch(
            f"/projects/{project.id}",
            json={"name": "Updated Name"},
            headers=auth_header(user)
        )
        assert resp.status_code == 200
        data = resp.json()
        assert data["name"] == "Updated Name"

    def test_delete_project(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions):
        """Project owner can delete project."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        project = make_project(owner_id=user.id)
        
        resp = client.delete(f"/projects/{project.id}", headers=auth_header(user))
        assert resp.status_code == 204

    def test_non_owner_cannot_delete_project(self, client, db, make_user, make_project, auth_header, seed_roles_and_permissions, make_member):
        """Non-owner cannot delete project."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        owner = make_user(username="owner")
        other = make_user(username="other")
        project = make_project(owner_id=owner.id)
        make_member(project.id, other.id, dev_role.id)
        
        resp = client.delete(f"/projects/{project.id}", headers=auth_header(other))
        assert resp.status_code == 403

    def test_project_code_generation(self, client, db, make_user, auth_header, seed_roles_and_permissions):
        """Project code is auto-generated if not provided."""
        admin_role, mgr_role, dev_role = seed_roles_and_permissions
        user = make_user()
        
        resp = client.post(
            "/projects",
            json={"name": "Auto Code Project"},
            headers=auth_header(user)
        )
        assert resp.status_code == 201
        data = resp.json()
        assert data["project_code"].startswith("P")