"""Tests for slack-bot _handle_swap."""

from freezegun import freeze_time

MON = "2026-06-01 12:00:00"


def _setup(seed):
    seed.roster("114", "Alice", slack_user_id="U_ALICE")
    seed.roster("115", "Bob", slack_user_id="U_BOB")
    seed.weekly("Monday", "114", "Alice")  # Alice is on the Monday shift


@freeze_time(MON)
def test_swap_to_mention(
    slackbot_app, schedule, seed, respond, client, routing_spy, text_of
):
    _setup(seed)
    slackbot_app._handle_swap(
        respond, schedule, "U_ALICE", "swap today <@U_BOB>", "C1", client, None
    )
    override = schedule.get_override("2026-06-01")
    assert override["extension"] == "115" and override["name"] == "Bob"
    assert "Swapped" in text_of(respond)
    routing_spy.assert_called_once_with("115")
    client.chat_postMessage.assert_called_once()


@freeze_time(MON)
def test_swap_to_extension(slackbot_app, schedule, seed, respond, client, routing_spy):
    _setup(seed)
    slackbot_app._handle_swap(
        respond, schedule, "U_ALICE", "swap today 115", "C1", client, None
    )
    assert schedule.get_override("2026-06-01")["extension"] == "115"


@freeze_time(MON)
def test_swap_not_your_shift(
    slackbot_app, schedule, seed, respond, client, routing_spy, text_of
):
    seed.roster("114", "Alice", slack_user_id="U_ALICE")
    seed.roster("115", "Bob", slack_user_id="U_BOB")
    seed.weekly("Monday", "115", "Bob")  # Bob's shift, not Alice's
    slackbot_app._handle_swap(
        respond, schedule, "U_ALICE", "swap today <@U_BOB>", "C1", client, None
    )
    assert "not your shift" in text_of(respond).lower()
    routing_spy.assert_not_called()


@freeze_time(MON)
def test_swap_target_mention_unregistered(
    slackbot_app, schedule, seed, respond, client, text_of
):
    seed.roster("114", "Alice", slack_user_id="U_ALICE")
    seed.weekly("Monday", "114", "Alice")
    slackbot_app._handle_swap(
        respond, schedule, "U_ALICE", "swap today <@U_GHOST>", "C1", client, None
    )
    assert "isn't registered" in text_of(respond)


@freeze_time(MON)
def test_swap_target_extension_not_found(
    slackbot_app, schedule, seed, respond, client, text_of
):
    seed.roster("114", "Alice", slack_user_id="U_ALICE")
    seed.weekly("Monday", "114", "Alice")
    slackbot_app._handle_swap(
        respond, schedule, "U_ALICE", "swap today 999", "C1", client, None
    )
    assert "not found" in text_of(respond).lower()


@freeze_time(MON)
def test_swap_past_date(slackbot_app, schedule, seed, respond, client, text_of):
    _setup(seed)
    slackbot_app._handle_swap(
        respond, schedule, "U_ALICE", "swap 2026-05-01 <@U_BOB>", "C1", client, None
    )
    assert "past" in text_of(respond).lower()


@freeze_time(MON)
def test_swap_unregistered_requester(slackbot_app, schedule, respond, client, text_of):
    slackbot_app._handle_swap(
        respond, schedule, "U_NOBODY", "swap today 115", "C1", client, None
    )
    assert "not registered" in text_of(respond).lower()


@freeze_time(MON)
def test_swap_usage(slackbot_app, schedule, respond, client, text_of):
    slackbot_app._handle_swap(
        respond, schedule, "U_ALICE", "swap today", "C1", client, None
    )
    assert "Usage" in text_of(respond)