from __future__ import annotations

import pytest

from api.services.lifecycle import (
    has_active_task_status,
    should_activate_parent_for_active_tasks,
    should_activate_parent_for_task_start,
    status_value,
)


@pytest.mark.parametrize("parent_status", ["proposed", "ready", "backlog"])
def test_task_start_activates_planning_parent(parent_status):
    assert should_activate_parent_for_task_start(
        previous_task_status="todo",
        new_task_status="in_progress",
        parent_workstream_status=parent_status,
    )


@pytest.mark.parametrize("parent_status", ["active", "blocked", "finished", "archived"])
def test_task_start_does_not_rewrite_non_planning_parent(parent_status):
    assert not should_activate_parent_for_task_start(
        previous_task_status="todo",
        new_task_status="in_progress",
        parent_workstream_status=parent_status,
    )


def test_task_start_requires_todo_to_in_progress_transition():
    assert not should_activate_parent_for_task_start(
        previous_task_status="in_progress",
        new_task_status="in_progress",
        parent_workstream_status="ready",
    )
    assert not should_activate_parent_for_task_start(
        previous_task_status="todo",
        new_task_status="done",
        parent_workstream_status="ready",
    )


def test_has_active_task_status_ignores_terminal_and_todo_statuses():
    assert has_active_task_status(["todo", "done", "cancelled"]) is False
    assert has_active_task_status(["todo", "blocked"]) is True
    assert has_active_task_status(["in_progress"]) is True


def test_active_task_state_activates_planning_parent_for_renormalization():
    assert should_activate_parent_for_active_tasks(
        parent_workstream_status="proposed",
        task_statuses=["todo", "in_progress"],
    )


def test_active_task_state_does_not_unblock_blocked_parent():
    assert not should_activate_parent_for_active_tasks(
        parent_workstream_status="blocked",
        task_statuses=["in_progress"],
    )


def test_status_value_unwraps_enum_like_values():
    class Status:
        value = "In_Progress"

    assert status_value(Status()) == "in_progress"