"""AP2.2b — A2 linear project: critical path in execution graph + Next Action."""

from __future__ import annotations

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


def test_linear_critical_path_and_next_action(client):
    user = provision_user_in_tenant(tenant_role="admin")
    token = _login(client, user)

    created = _create_initiative(
        client,
        token,
        title="Neue Küche",
        archetype_key="initiative.linear_project",
        apply_starter_kit=False,
    )
    initiative_id = created.json()["id"]

    a = client.post(
        f"/api/initiatives/{initiative_id}/actions",
        json={"title": "Rohbau", "status": "open", "sort_order": 0},
        headers=_auth(token),
    )
    b = client.post(
        f"/api/initiatives/{initiative_id}/actions",
        json={"title": "Elektrik", "status": "open", "sort_order": 1},
        headers=_auth(token),
    )
    c = client.post(
        f"/api/initiatives/{initiative_id}/actions",
        json={"title": "Endabnahme", "status": "open", "sort_order": 2},
        headers=_auth(token),
    )
    assert a.status_code == 201 and b.status_code == 201 and c.status_code == 201
    a_id, b_id, c_id = a.json()["id"], b.json()["id"], c.json()["id"]

    dep1 = client.post(
        f"/api/initiatives/{initiative_id}/execution/dependencies",
        json={
            "predecessor_action_id": a_id,
            "successor_action_id": b_id,
            "dependency_kind": "requires",
        },
        headers=_auth(token),
    )
    dep2 = client.post(
        f"/api/initiatives/{initiative_id}/execution/dependencies",
        json={
            "predecessor_action_id": b_id,
            "successor_action_id": c_id,
            "dependency_kind": "requires",
        },
        headers=_auth(token),
    )
    assert dep1.status_code == 201 and dep2.status_code == 201

    graph = client.get(
        f"/api/initiatives/{initiative_id}/execution/graph-state",
        headers=_auth(token),
    )
    assert graph.status_code == 200
    body = graph.json()
    assert body["critical_path"] == [a_id, b_id, c_id]
    assert a_id in body["ready_actions"]
    assert b_id in body["blocked_actions"]

    snap = client.get(
        f"/api/initiatives/{initiative_id}/steering-snapshot",
        headers=_auth(token),
    )
    assert snap.status_code == 200
    next_actions = snap.json().get("next_actions") or []
    assert next_actions
    top = next_actions[0]
    assert top.get("action_id") == a_id
    assert top.get("reason_code") in ("execution_ready", "execution_critical_path")