"""Rekursive Tasks (AP1.5d)."""

from __future__ import annotations

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


def _create_action(client, token, initiative_id, title="AP Alpha"):
    res = client.post(
        f"/api/initiatives/{initiative_id}/actions",
        json={"title": title},
        headers=_auth(token),
    )
    assert res.status_code == 201
    return res.json()


def _create_task(client, token, action_id, **payload):
    return client.post(
        f"/api/actions/{action_id}/tasks",
        json=payload,
        headers=_auth(token),
    )


def test_nested_tasks_and_rollup(client):
    user = provision_user_in_tenant(tenant_role="member")
    token = _login(client, user)
    initiative = _create_initiative(client, token, title="Task Tree").json()
    action = _create_action(client, token, initiative["id"])

    parent = _create_task(client, token, action["id"], title="Parent").json()
    child = _create_task(
        client,
        token,
        action["id"],
        title="Child",
        parent_task_id=parent["id"],
    )
    assert child.status_code == 201
    child_id = child.json()["id"]

    blocked = client.patch(
        f"/api/tasks/{parent['id']}",
        json={"status": "done"},
        headers=_auth(token),
    )
    assert blocked.status_code == 400

    done_child = client.patch(
        f"/api/tasks/{child_id}",
        json={"status": "done"},
        headers=_auth(token),
    )
    assert done_child.status_code == 200

    parent_after = client.get(
        f"/api/actions/{action['id']}/tasks",
        headers=_auth(token),
    ).json()
    parent_row = next(item for item in parent_after if item["id"] == parent["id"])
    assert parent_row["status"] == "done"


def test_task_cycle_rejected(client):
    user = provision_user_in_tenant(tenant_role="member")
    token = _login(client, user)
    initiative = _create_initiative(client, token, title="Cycle").json()
    action = _create_action(client, token, initiative["id"])

    a = _create_task(client, token, action["id"], title="A").json()
    b = _create_task(
        client,
        token,
        action["id"],
        title="B",
        parent_task_id=a["id"],
    ).json()

    res = client.patch(
        f"/api/tasks/{a['id']}",
        json={"parent_task_id": b["id"]},
        headers=_auth(token),
    )
    assert res.status_code == 400


def test_delete_task_with_children_rejected(client):
    user = provision_user_in_tenant(tenant_role="member")
    token = _login(client, user)
    initiative = _create_initiative(client, token, title="Delete Guard").json()
    action = _create_action(client, token, initiative["id"])

    parent = _create_task(client, token, action["id"], title="Parent").json()
    _create_task(
        client,
        token,
        action["id"],
        title="Child",
        parent_task_id=parent["id"],
    )

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