"""Tests for portal shift mutations."""

from zoneinfo import ZoneInfo

import freezegun
import pytest

from shared.portal_ops import (
    ActionError,
    admin_clear,
    admin_holiday_add,
    admin_open,
    drop,
    pick,
    respond_swap,
    snapshot,
    swap,
)
from shared import side_effects as effects

ET = ZoneInfo("America/New_York")


@pytest.fixture
def quiet_slack(monkeypatch):
    monkeypatch.setattr(effects, "slack_token", lambda: None)
    monkeypatch.setattr(effects, "refresh_schedule_post", lambda *a, **k: None)
    monkeypatch.setattr(effects, "post_shift_change", lambda *a, **k: None)
    monkeypatch.setattr(effects, "dm_late_pickup_admins", lambda *a, **k: 1)
    monkeypatch.setattr(effects, "dm_swap_request", lambda *a, **k: True)
    monkeypatch.setattr(effects, "dm_text", lambda *a, **k: None)
    monkeypatch.setattr(effects, "maybe_repoint_today", lambda *a, **k: False)


def _alice(schedule, seed):
    seed.roster("114", "Alice", slack_user_id="U_ALICE", email="alice@seahavenind.com")
    seed.roster("115", "Bob", slack_user_id="U_BOB", email="bob@seahavenind.com")
    return schedule.get_employee_by_extension("114")


def _admin(schedule, seed):
    employee = _alice(schedule, seed)
    seed.config(admin_users=["U_ALICE"])
    return employee


def test_pick_open_shift(schedule, seed, quiet_slack):
    employee = _alice(schedule, seed)
    seed.open_shift("2026-06-10")
    with freezegun.freeze_time("2026-06-08 12:00:00-04:00"):
        result = pick(schedule, employee, "2026-06-10", "night")
    assert result["ok"] is True
    assert schedule.get_override("2026-06-10")["extension"] == "114"


def test_drop_lock(schedule, seed, quiet_slack):
    employee = _alice(schedule, seed)
    seed.override("2026-06-10", "114", "Alice")
    with freezegun.freeze_time("2026-06-10 12:00:00-04:00"):
        with pytest.raises(ActionError) as err:
            drop(schedule, employee, "2026-06-10", "night")
    assert err.value.code == "DROP_LOCK"


def test_swap_creates_pending(schedule, seed, quiet_slack):
    employee = _alice(schedule, seed)
    seed.override("2026-06-12", "114", "Alice")
    with freezegun.freeze_time("2026-06-08 12:00:00-04:00"):
        result = swap(schedule, employee, "2026-06-12", "115", "night")
    assert result["ok"] is True
    pending = schedule.get_swap("2026-06-12", "night")
    assert pending["target_ext"] == "115"
    snap = snapshot(schedule, schedule.get_employee_by_extension("115"))
    assert snap["pendingSwaps"][0]["requesterExt"] == "114"
    assert snap["pendingSwaps"][0]["incoming"] is True
    mine = snapshot(schedule, employee)
    assert mine["pendingSwaps"][0]["incoming"] is False


def test_late_pickup_creates_request(schedule, seed, quiet_slack):
    employee = _alice(schedule, seed)
    seed.open_shift("2026-06-10")
    with freezegun.freeze_time("2026-06-10 20:00:00-04:00"):
        result = pick(schedule, employee, "2026-06-10", "night")
    assert result["latePickup"] is True
    req = schedule.get_pickup_request("2026-06-10", "night", "114")
    assert req["status"] == "pending"


def test_snapshot_includes_weekday_holiday_day_shift(schedule, seed):
    employee = _alice(schedule, seed)
    seed.holiday(
        "2026-06-10",
        assignees={"114": {"name": "Alice", "claimed_at": "now"}},
    )
    with freezegun.freeze_time("2026-06-08 12:00:00-04:00"):
        snap = snapshot(schedule, employee)
    assert snap["weekStart"] == "2026-06-07"
    wednesday = next(day for day in snap["days"] if day["date"] == "2026-06-10")
    assert wednesday["slots"][0]["kind"] == "holiday"
    assert wednesday["slots"][0]["shiftType"] == "day"
    assert wednesday["slots"][0]["mine"] is True


def test_drop_accepts_day_for_holiday_slot(schedule, seed, quiet_slack):
    employee = _alice(schedule, seed)
    seed.holiday(
        "2026-06-10",
        assignees={"114": {"name": "Alice", "claimed_at": "now"}},
    )
    with freezegun.freeze_time("2026-06-08 06:00:00-04:00"):
        result = drop(schedule, employee, "2026-06-10", "day")
    assert result["ok"] is True
    assert schedule.get_holiday("2026-06-10")["assignees"] == {}


def test_swap_accept_rechecks_resolved_holder(schedule, seed, quiet_slack):
    employee = _alice(schedule, seed)
    seed.roster("116", "Charlie", slack_user_id="U_CHARLIE")
    seed.weekly("Friday", "114", "Alice")
    with freezegun.freeze_time("2026-06-08 12:00:00-04:00"):
        swap(schedule, employee, "2026-06-12", "115", "night")
        seed.weekly("Friday", "116", "Charlie")
        with pytest.raises(ActionError) as err:
            respond_swap(
                schedule,
                schedule.get_employee_by_extension("115"),
                "2026-06-12",
                "night",
                True,
            )
    assert err.value.code == "CONFLICT"
    assert schedule.get_override("2026-06-12") is None
    assert schedule.get_swap("2026-06-12", "night") is None


def test_admin_open_repoints_active_shift_to_fallback(
    schedule, seed, quiet_slack, monkeypatch
):
    employee = _admin(schedule, seed)
    calls = []
    monkeypatch.setattr(
        effects,
        "maybe_repoint_today",
        lambda date, shift_type, extension: (
            calls.append((date, shift_type, extension)) or True
        ),
    )
    with freezegun.freeze_time("2026-06-10 20:00:00-04:00"):
        result = admin_open(schedule, employee, "2026-06-10", "night")
    assert result["repointed"] is True
    assert calls == [("2026-06-10", "night", "100")]


def test_admin_clear_repoints_active_shift_to_resolved_holder(
    schedule, seed, quiet_slack, monkeypatch
):
    employee = _admin(schedule, seed)
    seed.weekly("Wednesday", "115", "Bob")
    seed.override("2026-06-10", "114", "Alice")
    calls = []
    monkeypatch.setattr(
        effects,
        "maybe_repoint_today",
        lambda date, shift_type, extension: (
            calls.append((date, shift_type, extension)) or True
        ),
    )
    with freezegun.freeze_time("2026-06-10 20:00:00-04:00"):
        result = admin_clear(schedule, employee, "2026-06-10", "night")
    assert result["repointed"] is True
    assert calls == [("2026-06-10", "night", "115")]


def test_invalid_holiday_multiplier_rejected_before_schedules(
    schedule, seed, quiet_slack, monkeypatch
):
    employee = _admin(schedule, seed)
    monkeypatch.setattr(
        effects, "create_holiday_schedules", lambda _date: pytest.fail("called")
    )
    with freezegun.freeze_time("2026-06-08 12:00:00-04:00"):
        with pytest.raises(ActionError) as err:
            admin_holiday_add(
                schedule,
                employee,
                "2026-12-25",
                2,
                "Christmas",
                "not-a-number",
            )
    assert err.value.code == "INVALID_MULTIPLIER"
    assert schedule.get_holiday("2026-12-25") is None