"""The tests for the Modbus switch component."""
from datetime import timedelta
from unittest import mock

from freezegun.api import FrozenDateTimeFactory
from pymodbus.exceptions import ModbusException
import pytest

from homeassistant.components.modbus.const import (
    CALL_TYPE_COIL,
    CALL_TYPE_DISCRETE,
    CALL_TYPE_REGISTER_HOLDING,
    CALL_TYPE_REGISTER_INPUT,
    CONF_DEVICE_ADDRESS,
    CONF_INPUT_TYPE,
    CONF_LAZY_ERROR,
    CONF_STATE_OFF,
    CONF_STATE_ON,
    CONF_VERIFY,
    CONF_WRITE_TYPE,
    MODBUS_DOMAIN,
)
from homeassistant.components.switch import DOMAIN as SWITCH_DOMAIN
from homeassistant.const import (
    CONF_ADDRESS,
    CONF_COMMAND_OFF,
    CONF_COMMAND_ON,
    CONF_DELAY,
    CONF_DEVICE_CLASS,
    CONF_NAME,
    CONF_SCAN_INTERVAL,
    CONF_SLAVE,
    CONF_SWITCHES,
    STATE_OFF,
    STATE_ON,
    STATE_UNAVAILABLE,
)
from homeassistant.core import HomeAssistant, State
from homeassistant.setup import async_setup_component
import homeassistant.util.dt as dt_util

from .conftest import TEST_ENTITY_NAME, ReadResult, do_next_cycle

from tests.common import async_fire_time_changed

ENTITY_ID = f"{SWITCH_DOMAIN}.{TEST_ENTITY_NAME}".replace(" ", "_")
ENTITY_ID2 = f"{ENTITY_ID}_2"


@pytest.mark.parametrize(
    "do_config",
    [
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                }
            ]
        },
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_WRITE_TYPE: CALL_TYPE_COIL,
                    CONF_LAZY_ERROR: 10,
                }
            ]
        },
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_SLAVE: 1,
                    CONF_COMMAND_OFF: 0x00,
                    CONF_COMMAND_ON: 0x01,
                    CONF_DEVICE_CLASS: "switch",
                    CONF_VERIFY: {
                        CONF_INPUT_TYPE: CALL_TYPE_REGISTER_HOLDING,
                        CONF_ADDRESS: 1235,
                        CONF_STATE_OFF: 0,
                        CONF_STATE_ON: 1,
                    },
                }
            ]
        },
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_DEVICE_ADDRESS: 1,
                    CONF_COMMAND_OFF: 0x00,
                    CONF_COMMAND_ON: 0x01,
                    CONF_DEVICE_CLASS: "switch",
                    CONF_VERIFY: {
                        CONF_INPUT_TYPE: CALL_TYPE_REGISTER_HOLDING,
                        CONF_ADDRESS: 1235,
                        CONF_STATE_OFF: 0,
                        CONF_STATE_ON: 1,
                    },
                }
            ]
        },
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_SLAVE: 1,
                    CONF_COMMAND_OFF: 0x00,
                    CONF_COMMAND_ON: 0x01,
                    CONF_DEVICE_CLASS: "switch",
                    CONF_VERIFY: {
                        CONF_INPUT_TYPE: CALL_TYPE_REGISTER_INPUT,
                        CONF_ADDRESS: 1235,
                        CONF_STATE_OFF: 0,
                        CONF_STATE_ON: 1,
                        CONF_DELAY: 10,
                    },
                }
            ]
        },
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_SLAVE: 1,
                    CONF_COMMAND_OFF: 0x00,
                    CONF_COMMAND_ON: 0x01,
                    CONF_DEVICE_CLASS: "switch",
                    CONF_VERIFY: {
                        CONF_INPUT_TYPE: CALL_TYPE_DISCRETE,
                        CONF_ADDRESS: 1235,
                        CONF_STATE_OFF: 0,
                        CONF_STATE_ON: 1,
                    },
                }
            ]
        },
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_SLAVE: 1,
                    CONF_COMMAND_OFF: 0x00,
                    CONF_COMMAND_ON: 0x01,
                    CONF_DEVICE_CLASS: "switch",
                    CONF_SCAN_INTERVAL: 0,
                    CONF_VERIFY: None,
                }
            ]
        },
    ],
)
async def test_config_switch(hass: HomeAssistant, mock_modbus) -> None:
    """Run configurationtest for switch."""
    assert SWITCH_DOMAIN in hass.config.components


@pytest.mark.parametrize(
    "do_config",
    [
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_SLAVE: 1,
                    CONF_WRITE_TYPE: CALL_TYPE_COIL,
                },
            ],
        },
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_SLAVE: 1,
                    CONF_WRITE_TYPE: CALL_TYPE_REGISTER_HOLDING,
                },
            ],
        },
    ],
)
@pytest.mark.parametrize(
    ("register_words", "do_exception", "config_addon", "expected"),
    [
        (
            [0x00],
            False,
            {CONF_VERIFY: {}},
            STATE_OFF,
        ),
        (
            [0x01],
            False,
            {CONF_VERIFY: {}},
            STATE_ON,
        ),
        (
            [0xFE],
            False,
            {CONF_VERIFY: {}},
            STATE_OFF,
        ),
        (
            [0x00],
            True,
            {CONF_VERIFY: {}},
            STATE_UNAVAILABLE,
        ),
        (
            [0x00],
            True,
            None,
            STATE_OFF,
        ),
    ],
)
async def test_all_switch(hass: HomeAssistant, mock_do_cycle, expected) -> None:
    """Run test for given config."""
    assert hass.states.get(ENTITY_ID).state == expected


@pytest.mark.parametrize(
    "do_config",
    [
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_SLAVE: 1,
                    CONF_WRITE_TYPE: CALL_TYPE_REGISTER_HOLDING,
                    CONF_SCAN_INTERVAL: 10,
                    CONF_LAZY_ERROR: 2,
                    CONF_VERIFY: {},
                },
            ],
        },
    ],
)
@pytest.mark.parametrize(
    ("register_words", "do_exception", "start_expect", "end_expect"),
    [
        (
            [0x00],
            True,
            STATE_OFF,
            STATE_UNAVAILABLE,
        ),
    ],
)
async def test_lazy_error_switch(
    hass: HomeAssistant, start_expect, end_expect, mock_do_cycle: FrozenDateTimeFactory
) -> None:
    """Run test for given config."""
    assert hass.states.get(ENTITY_ID).state == start_expect
    await do_next_cycle(hass, mock_do_cycle, 11)
    assert hass.states.get(ENTITY_ID).state == start_expect
    await do_next_cycle(hass, mock_do_cycle, 11)
    assert hass.states.get(ENTITY_ID).state == end_expect


@pytest.mark.parametrize(
    "mock_test_state",
    [(State(ENTITY_ID, STATE_ON),), (State(ENTITY_ID, STATE_OFF),)],
    indirect=True,
)
@pytest.mark.parametrize(
    "do_config",
    [
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_SCAN_INTERVAL: 0,
                }
            ]
        },
    ],
)
async def test_restore_state_switch(
    hass: HomeAssistant, mock_test_state, mock_modbus
) -> None:
    """Run test for sensor restore state."""
    assert hass.states.get(ENTITY_ID).state == mock_test_state[0].state


@pytest.mark.parametrize(
    "do_config",
    [
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 17,
                    CONF_WRITE_TYPE: CALL_TYPE_REGISTER_HOLDING,
                    CONF_SCAN_INTERVAL: 0,
                },
                {
                    CONF_NAME: f"{TEST_ENTITY_NAME} 2",
                    CONF_ADDRESS: 18,
                    CONF_WRITE_TYPE: CALL_TYPE_REGISTER_HOLDING,
                    CONF_SCAN_INTERVAL: 0,
                    CONF_VERIFY: {},
                },
            ],
        },
    ],
)
async def test_switch_service_turn(
    hass: HomeAssistant,
    caplog: pytest.LogCaptureFixture,
    mock_modbus,
    mock_pymodbus_return,
) -> None:
    """Run test for service turn_on/turn_off."""
    assert MODBUS_DOMAIN in hass.config.components

    assert hass.states.get(ENTITY_ID).state == STATE_OFF
    await hass.services.async_call(
        "switch", "turn_on", service_data={"entity_id": ENTITY_ID}
    )
    await hass.async_block_till_done()
    assert hass.states.get(ENTITY_ID).state == STATE_ON
    await hass.services.async_call(
        "switch", "turn_off", service_data={"entity_id": ENTITY_ID}
    )
    await hass.async_block_till_done()
    assert hass.states.get(ENTITY_ID).state == STATE_OFF

    mock_modbus.read_holding_registers.return_value = ReadResult([0x01])
    assert hass.states.get(ENTITY_ID2).state == STATE_OFF
    await hass.services.async_call(
        "switch", "turn_on", service_data={"entity_id": ENTITY_ID2}
    )
    await hass.async_block_till_done()
    assert hass.states.get(ENTITY_ID2).state == STATE_ON
    mock_modbus.read_holding_registers.return_value = ReadResult([0x00])
    await hass.services.async_call(
        "switch", "turn_off", service_data={"entity_id": ENTITY_ID2}
    )
    await hass.async_block_till_done()
    assert hass.states.get(ENTITY_ID2).state == STATE_OFF

    mock_modbus.write_register.side_effect = ModbusException("fail write_")
    await hass.services.async_call(
        "switch", "turn_on", service_data={"entity_id": ENTITY_ID2}
    )
    await hass.async_block_till_done()
    assert hass.states.get(ENTITY_ID2).state == STATE_UNAVAILABLE
    mock_modbus.write_coil.side_effect = ModbusException("fail write_")
    await hass.services.async_call(
        "switch", "turn_off", service_data={"entity_id": ENTITY_ID}
    )
    await hass.async_block_till_done()
    assert hass.states.get(ENTITY_ID).state == STATE_UNAVAILABLE


@pytest.mark.parametrize(
    "do_config",
    [
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 1234,
                    CONF_WRITE_TYPE: CALL_TYPE_COIL,
                    CONF_VERIFY: {},
                }
            ]
        },
    ],
)
async def test_service_switch_update(hass: HomeAssistant, mock_modbus, mock_ha) -> None:
    """Run test for service homeassistant.update_entity."""
    await hass.services.async_call(
        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
    )
    assert hass.states.get(ENTITY_ID).state == STATE_OFF
    mock_modbus.read_coils.return_value = ReadResult([0x01])
    await hass.services.async_call(
        "homeassistant", "update_entity", {"entity_id": ENTITY_ID}, blocking=True
    )
    assert hass.states.get(ENTITY_ID).state == STATE_ON


@pytest.mark.parametrize(
    "do_config",
    [
        {
            CONF_SWITCHES: [
                {
                    CONF_NAME: TEST_ENTITY_NAME,
                    CONF_ADDRESS: 51,
                    CONF_SCAN_INTERVAL: 0,
                    CONF_VERIFY: {
                        CONF_DELAY: 1,
                        CONF_INPUT_TYPE: CALL_TYPE_REGISTER_HOLDING,
                    },
                }
            ],
        },
    ],
)
async def test_delay_switch(
    hass: HomeAssistant, mock_modbus, mock_pymodbus_return
) -> None:
    """Run test for switch verify delay."""
    mock_modbus.read_holding_registers.return_value = ReadResult([0x01])
    now = dt_util.utcnow()
    await hass.services.async_call(
        "switch", "turn_on", service_data={"entity_id": ENTITY_ID}
    )
    await hass.async_block_till_done()
    assert hass.states.get(ENTITY_ID).state == STATE_OFF
    now = now + timedelta(seconds=2)
    with mock.patch("homeassistant.helpers.event.dt_util.utcnow", return_value=now):
        async_fire_time_changed(hass, now)
        await hass.async_block_till_done()
    assert hass.states.get(ENTITY_ID).state == STATE_ON


async def test_no_discovery_info_switch(
    hass: HomeAssistant, caplog: pytest.LogCaptureFixture
) -> None:
    """Test setup without discovery info."""
    assert SWITCH_DOMAIN not in hass.config.components
    assert await async_setup_component(
        hass,
        SWITCH_DOMAIN,
        {SWITCH_DOMAIN: {"platform": MODBUS_DOMAIN}},
    )
    await hass.async_block_till_done()
    assert SWITCH_DOMAIN in hass.config.components