"""Tests for idempotent Campaign completion and settlement ordering."""

import pytest
from agenteval.evaluation.campaign_lifecycle import CampaignCancelError, complete_campaign
from agenteval.models import Campaign, CampaignPlanEntry, CampaignStatus
from agenteval.storage.repository import CampaignRepository


def _campaign(session, status=CampaignStatus.RUNNING):
    return CampaignRepository(session).create(
        Campaign(
            id="campaign-1",
            name="campaign",
            target_id="t-1",
            status=status,
            window_seconds=60,
            plan=[CampaignPlanEntry(scenario_id="s-1", offset_seconds=0, count=1)],
        )
    )


def test_complete_uses_cas_and_settles_after_commit(db_session):
    _campaign(db_session)
    observed = []

    def settle(campaign_id, session):
        observed.append(CampaignRepository(session).get(campaign_id).status)

    completed = complete_campaign(db_session, "campaign-1", settle=settle)

    assert completed.status is CampaignStatus.COMPLETED
    assert completed.completed_at is not None
    assert observed == [CampaignStatus.COMPLETED]


def test_complete_is_idempotency_guarded(db_session):
    _campaign(db_session)
    complete_campaign(db_session, "campaign-1")
    with pytest.raises(CampaignCancelError) as again:
        complete_campaign(db_session, "campaign-1")
    assert again.value.status_code == 409


def test_cancel_wins_completion_race(db_session):
    _campaign(db_session, CampaignStatus.CANCELLED)
    with pytest.raises(CampaignCancelError) as conflict:
        complete_campaign(db_session, "campaign-1")
    assert conflict.value.status_code == 409