from datetime import date, datetime, time
from unittest.mock import AsyncMock, MagicMock, patch

import pytest
from homeassistant.core import HomeAssistant
from homeassistant.exceptions import HomeAssistantError
from pytest_homeassistant_custom_component.common import MockConfigEntry

from custom_components.room_cal_ha.const import (
  CONF_ZLOCK_ENTRIES,
  CONF_ZWAVE_SLOT,
  DOMAIN,
  STORE_CURRENT,
  STORE_NEXT,
)
from custom_components.room_cal_ha.coordinator import RoomCalCoordinator
from custom_components.room_cal_ha.models import ReservationData


_BASE_DATA = {
  "room_state_name": "Room State",
  "current_name": "Current",
  "next_name": "Next",
}

# Freeze time at the check-in moment so the window registers as active during check-in tests.
_AT_CHECK_IN = MagicMock()
_AT_CHECK_IN.replace.return_value = datetime(2026, 7, 1, 14, 0, 0)

_ZWAVE_RES = ReservationData(
  guest_name="Bob",
  check_in_date=date(2026, 7, 1),
  check_in_time=time(14, 0),
  check_out_date=date(2026, 7, 5),
  check_out_time=time(12, 0),
  door_code="7890",
)


def _make_entry(hass, options: dict) -> MockConfigEntry:
  entry = MockConfigEntry(domain=DOMAIN, data=_BASE_DATA, options=options)
  entry.add_to_hass(hass)
  return entry


def _make_zlock_entry(hass, lock_entity_ids: list[str]) -> MockConfigEntry:
  zlock = MockConfigEntry(domain="zlock_slots", data={"lock_entity_ids": lock_entity_ids})
  zlock.add_to_hass(hass)
  return zlock


@pytest.fixture
async def coordinator(hass: HomeAssistant, mock_entry):
  mock_entry.add_to_hass(hass)
  coord = RoomCalCoordinator(hass, mock_entry)
  await coord.async_setup()
  return coord


@pytest.fixture
async def coordinator_with_locks(hass: HomeAssistant):
  zlock = _make_zlock_entry(hass, ["lock.front_door"])
  entry = _make_entry(hass, {CONF_ZLOCK_ENTRIES: [zlock.entry_id], CONF_ZWAVE_SLOT: 5})
  coord = RoomCalCoordinator(hass, entry)
  await coord.async_setup()
  return coord


# ---------------------------------------------------------------------------
# Check-in Z-Wave lock behavior
# ---------------------------------------------------------------------------

async def test_check_in_sets_lock_codes(hass: HomeAssistant, coordinator_with_locks: RoomCalCoordinator):
  await coordinator_with_locks.store.async_set(STORE_NEXT, _ZWAVE_RES)
  mock_switch = MagicMock()
  mock_switch.async_turn_on = AsyncMock()
  coordinator_with_locks._room_state_switch = mock_switch

  with (
    patch.object(coordinator_with_locks, "_is_mode_sync_on", return_value=True),
    patch.object(coordinator_with_locks, "_is_use_zwave_on", return_value=True),
    patch("custom_components.room_cal_ha.coordinator.dt_util.now", return_value=_AT_CHECK_IN),
    patch("custom_components.room_cal_ha.locks._async_call_service", new_callable=AsyncMock) as mock_call,
  ):
    await coordinator_with_locks._async_do_check_in()
  coordinator_with_locks.cancel_mode_sync()

  mock_call.assert_any_await(hass, "zlock_slots", "set_code", {"lock_entity_id": "lock.front_door", "slot": 5, "code": "7890"})
  mock_call.assert_any_await(hass, "zlock_slots", "set_slot_enabled", {"lock_entity_id": "lock.front_door", "slot": 5, "enabled": True})
  mock_switch.async_turn_on.assert_awaited_once()


async def test_check_in_sets_codes_on_all_locks(hass: HomeAssistant):
  zlock = _make_zlock_entry(hass, ["lock.front", "lock.back"])
  entry = _make_entry(hass, {CONF_ZLOCK_ENTRIES: [zlock.entry_id], CONF_ZWAVE_SLOT: 5})
  coord = RoomCalCoordinator(hass, entry)
  await coord.async_setup()
  await coord.store.async_set(STORE_NEXT, _ZWAVE_RES)
  mock_switch = MagicMock()
  mock_switch.async_turn_on = AsyncMock()
  coord._room_state_switch = mock_switch

  with (
    patch.object(coord, "_is_mode_sync_on", return_value=True),
    patch.object(coord, "_is_use_zwave_on", return_value=True),
    patch("custom_components.room_cal_ha.coordinator.dt_util.now", return_value=_AT_CHECK_IN),
    patch("custom_components.room_cal_ha.locks._async_call_service", new_callable=AsyncMock) as mock_call,
  ):
    await coord._async_do_check_in()
  coord.cancel_mode_sync()

  mock_call.assert_any_await(hass, "zlock_slots", "set_code", {"lock_entity_id": "lock.front", "slot": 5, "code": "7890"})
  mock_call.assert_any_await(hass, "zlock_slots", "set_code", {"lock_entity_id": "lock.back", "slot": 5, "code": "7890"})
  mock_call.assert_any_await(hass, "zlock_slots", "set_slot_enabled", {"lock_entity_id": "lock.front", "slot": 5, "enabled": True})
  mock_call.assert_any_await(hass, "zlock_slots", "set_slot_enabled", {"lock_entity_id": "lock.back", "slot": 5, "enabled": True})


async def test_check_in_skips_lock_codes_when_door_code_none(hass: HomeAssistant, coordinator_with_locks: RoomCalCoordinator):
  no_code = _ZWAVE_RES.__class__(
    guest_name="Bob",
    check_in_date=_ZWAVE_RES.check_in_date,
    check_in_time=_ZWAVE_RES.check_in_time,
    check_out_date=_ZWAVE_RES.check_out_date,
    check_out_time=_ZWAVE_RES.check_out_time,
    door_code=None,
  )
  await coordinator_with_locks.store.async_set(STORE_NEXT, no_code)
  coordinator_with_locks._room_state_switch = None

  with (
    patch.object(coordinator_with_locks, "_is_mode_sync_on", return_value=True),
    patch.object(coordinator_with_locks, "_is_use_zwave_on", return_value=True),
    patch("custom_components.room_cal_ha.coordinator.dt_util.now", return_value=_AT_CHECK_IN),
    patch("custom_components.room_cal_ha.locks._async_call_service", new_callable=AsyncMock) as mock_call,
  ):
    await coordinator_with_locks._async_do_check_in()
  coordinator_with_locks.cancel_mode_sync()

  assert not any(
    c.args[1:3] == ("zlock_slots", "set_code") for c in mock_call.await_args_list
  )


async def test_check_in_skips_lock_codes_when_use_zwave_off(hass: HomeAssistant, coordinator_with_locks: RoomCalCoordinator):
  await coordinator_with_locks.store.async_set(STORE_NEXT, _ZWAVE_RES)
  coordinator_with_locks._room_state_switch = None

  with (
    patch.object(coordinator_with_locks, "_is_mode_sync_on", return_value=True),
    patch.object(coordinator_with_locks, "_is_use_zwave_on", return_value=False),
    patch("custom_components.room_cal_ha.coordinator.dt_util.now", return_value=_AT_CHECK_IN),
    patch("custom_components.room_cal_ha.locks._async_call_service", new_callable=AsyncMock) as mock_call,
  ):
    await coordinator_with_locks._async_do_check_in()
  coordinator_with_locks.cancel_mode_sync()

  mock_call.assert_not_awaited()


async def test_check_in_skips_lock_codes_when_no_locks_configured(hass: HomeAssistant, coordinator: RoomCalCoordinator):
  # coordinator fixture has no CONF_ZLOCK_ENTRIES in options
  await coordinator.store.async_set(STORE_NEXT, _ZWAVE_RES)
  coordinator._room_state_switch = None

  with (
    patch.object(coordinator, "_is_mode_sync_on", return_value=True),
    patch.object(coordinator, "_is_use_zwave_on", return_value=True),
    patch("custom_components.room_cal_ha.coordinator.dt_util.now", return_value=_AT_CHECK_IN),
    patch("custom_components.room_cal_ha.locks._async_call_service", new_callable=AsyncMock) as mock_call,
  ):
    await coordinator._async_do_check_in()
  coordinator.cancel_mode_sync()

  mock_call.assert_not_awaited()


async def test_check_in_lock_error_still_activates_guest_mode(hass: HomeAssistant, coordinator_with_locks: RoomCalCoordinator):
  await coordinator_with_locks.store.async_set(STORE_NEXT, _ZWAVE_RES)
  mock_switch = MagicMock()
  mock_switch.async_turn_on = AsyncMock()
  coordinator_with_locks._room_state_switch = mock_switch

  with (
    patch.object(coordinator_with_locks, "_is_mode_sync_on", return_value=True),
    patch.object(coordinator_with_locks, "_is_use_zwave_on", return_value=True),
    patch("custom_components.room_cal_ha.coordinator.dt_util.now", return_value=_AT_CHECK_IN),
    patch("custom_components.room_cal_ha.locks._async_call_service", side_effect=HomeAssistantError("lock offline")),
  ):
    await coordinator_with_locks._async_do_check_in()
  coordinator_with_locks.cancel_mode_sync()

  mock_switch.async_turn_on.assert_awaited_once()


# ---------------------------------------------------------------------------
# Check-out Z-Wave lock behavior
# ---------------------------------------------------------------------------

async def test_check_out_disables_lock_slot(hass: HomeAssistant, coordinator_with_locks: RoomCalCoordinator):
  await coordinator_with_locks.store.async_set(STORE_CURRENT, _ZWAVE_RES)
  mock_switch = MagicMock()
  mock_switch.async_turn_off = AsyncMock()
  coordinator_with_locks._room_state_switch = mock_switch

  with (
    patch.object(coordinator_with_locks, "_is_mode_sync_on", return_value=True),
    patch.object(coordinator_with_locks, "_is_use_zwave_on", return_value=True),
    patch("custom_components.room_cal_ha.coordinator.dt_util.now", return_value=_AT_CHECK_IN),
    patch("custom_components.room_cal_ha.locks._async_call_service", new_callable=AsyncMock) as mock_call,
  ):
    await coordinator_with_locks._async_do_check_out()

  mock_call.assert_awaited_once_with(hass, "zlock_slots", "set_slot_enabled", {"lock_entity_id": "lock.front_door", "slot": 5, "enabled": False})
  mock_switch.async_turn_off.assert_awaited_once()


async def test_check_out_skips_lock_slot_when_use_zwave_off(hass: HomeAssistant, coordinator_with_locks: RoomCalCoordinator):
  await coordinator_with_locks.store.async_set(STORE_CURRENT, _ZWAVE_RES)
  coordinator_with_locks._room_state_switch = None

  with (
    patch.object(coordinator_with_locks, "_is_mode_sync_on", return_value=True),
    patch.object(coordinator_with_locks, "_is_use_zwave_on", return_value=False),
    patch("custom_components.room_cal_ha.locks._async_call_service", new_callable=AsyncMock) as mock_call,
  ):
    await coordinator_with_locks._async_do_check_out()

  mock_call.assert_not_awaited()


async def test_check_out_lock_error_still_deactivates_guest_mode(hass: HomeAssistant, coordinator_with_locks: RoomCalCoordinator):
  await coordinator_with_locks.store.async_set(STORE_CURRENT, _ZWAVE_RES)
  mock_switch = MagicMock()
  mock_switch.async_turn_off = AsyncMock()
  coordinator_with_locks._room_state_switch = mock_switch

  with (
    patch.object(coordinator_with_locks, "_is_mode_sync_on", return_value=True),
    patch.object(coordinator_with_locks, "_is_use_zwave_on", return_value=True),
    patch("custom_components.room_cal_ha.coordinator.dt_util.now", return_value=_AT_CHECK_IN),
    patch("custom_components.room_cal_ha.locks._async_call_service", side_effect=HomeAssistantError("lock offline")),
  ):
    await coordinator_with_locks._async_do_check_out()

  mock_switch.async_turn_off.assert_awaited_once()