"""AP1.5c — Rekursive Projects (parent_project_id)."""

from __future__ import annotations

from tests.factories import provision_user_in_tenant
from tests.test_initiatives_actions import (
    _auth,
    _create_initiative,
    _login,
)


def test_nested_projects_and_depth(client):
    user = provision_user_in_tenant(tenant_role="member")
    token = _login(client, user)
    initiative_id = _create_initiative(client, token).json()["id"]

    root = client.post(
        f"/api/initiatives/{initiative_id}/projects",
        json={"title": "Programm", "container_kind": "project"},
        headers=_auth(token),
    )
    assert root.status_code == 201
    root_id = root.json()["id"]

    stream = client.post(
        f"/api/initiatives/{initiative_id}/projects",
        json={
            "title": "Backend Stream",
            "parent_project_id": root_id,
            "container_kind": "stream",
        },
        headers=_auth(token),
    )
    assert stream.status_code == 201
    stream_id = stream.json()["id"]

    leaf = client.post(
        f"/api/initiatives/{initiative_id}/projects",
        json={"title": "API", "parent_project_id": stream_id},
        headers=_auth(token),
    )
    assert leaf.status_code == 201
    leaf_id = leaf.json()["id"]

    listed = client.get(
        f"/api/initiatives/{initiative_id}/projects",
        headers=_auth(token),
    )
    assert listed.status_code == 200
    items = {p["id"]: p for p in listed.json()}
    assert items[stream_id]["parent_project_id"] == root_id
    assert items[leaf_id]["depth"] == 3
    assert items[leaf_id]["is_leaf"] is True
    assert items[root_id]["has_children"] is True


def test_action_only_on_leaf_project(client):
    user = provision_user_in_tenant(tenant_role="member")
    token = _login(client, user)
    initiative_id = _create_initiative(client, token).json()["id"]

    parent = client.post(
        f"/api/initiatives/{initiative_id}/projects",
        json={"title": "Container"},
        headers=_auth(token),
    ).json()
    child = client.post(
        f"/api/initiatives/{initiative_id}/projects",
        json={"title": "Blatt", "parent_project_id": parent["id"]},
        headers=_auth(token),
    ).json()

    blocked = client.post(
        f"/api/initiatives/{initiative_id}/actions",
        json={"title": "Am Container", "project_id": parent["id"]},
        headers=_auth(token),
    )
    assert blocked.status_code == 400
    assert "Blatt" in blocked.json()["detail"]

    ok = client.post(
        f"/api/initiatives/{initiative_id}/actions",
        json={"title": "Am Blatt", "project_id": child["id"]},
        headers=_auth(token),
    )
    assert ok.status_code == 201


def test_cannot_delete_project_with_children(client):
    user = provision_user_in_tenant(tenant_role="member")
    token = _login(client, user)
    initiative_id = _create_initiative(client, token).json()["id"]

    parent = client.post(
        f"/api/initiatives/{initiative_id}/projects",
        json={"title": "Parent"},
        headers=_auth(token),
    ).json()
    child = client.post(
        f"/api/initiatives/{initiative_id}/projects",
        json={"title": "Child", "parent_project_id": parent["id"]},
        headers=_auth(token),
    ).json()

    resp = client.delete(f"/api/projects/{parent['id']}", headers=_auth(token))
    assert resp.status_code == 400

    client.delete(f"/api/projects/{child['id']}", headers=_auth(token))
    ok = client.delete(f"/api/projects/{parent['id']}", headers=_auth(token))
    assert ok.status_code == 204