"""Test zha fan."""
from unittest.mock import call

import pytest
import zigpy.zcl.clusters.hvac as hvac

from homeassistant.components import fan
from homeassistant.components.fan import ATTR_SPEED, DOMAIN, SERVICE_SET_SPEED
from homeassistant.const import (
    ATTR_ENTITY_ID,
    SERVICE_TURN_OFF,
    SERVICE_TURN_ON,
    STATE_OFF,
    STATE_ON,
    STATE_UNAVAILABLE,
)

from .common import (
    async_enable_traffic,
    async_test_rejoin,
    find_entity_id,
    send_attributes_report,
)


@pytest.fixture
def zigpy_device(zigpy_device_mock):
    """Device tracker zigpy device."""
    endpoints = {
        1: {"in_clusters": [hvac.Fan.cluster_id], "out_clusters": [], "device_type": 0}
    }
    return zigpy_device_mock(endpoints)


async def test_fan(hass, zha_device_joined_restored, zigpy_device):
    """Test zha fan platform."""

    zha_device = await zha_device_joined_restored(zigpy_device)
    cluster = zigpy_device.endpoints.get(1).fan
    entity_id = await find_entity_id(DOMAIN, zha_device, hass)
    assert entity_id is not None

    # test that the fan was created and that it is unavailable
    assert hass.states.get(entity_id).state == STATE_UNAVAILABLE

    # allow traffic to flow through the gateway and device
    await async_enable_traffic(hass, [zha_device])

    # test that the state has changed from unavailable to off
    assert hass.states.get(entity_id).state == STATE_OFF

    # turn on at fan
    await send_attributes_report(hass, cluster, {1: 2, 0: 1, 2: 3})
    assert hass.states.get(entity_id).state == STATE_ON

    # turn off at fan
    await send_attributes_report(hass, cluster, {1: 1, 0: 0, 2: 2})
    assert hass.states.get(entity_id).state == STATE_OFF

    # turn on from HA
    cluster.write_attributes.reset_mock()
    await async_turn_on(hass, entity_id)
    assert len(cluster.write_attributes.mock_calls) == 1
    assert cluster.write_attributes.call_args == call({"fan_mode": 2})

    # turn off from HA
    cluster.write_attributes.reset_mock()
    await async_turn_off(hass, entity_id)
    assert len(cluster.write_attributes.mock_calls) == 1
    assert cluster.write_attributes.call_args == call({"fan_mode": 0})

    # change speed from HA
    cluster.write_attributes.reset_mock()
    await async_set_speed(hass, entity_id, speed=fan.SPEED_HIGH)
    assert len(cluster.write_attributes.mock_calls) == 1
    assert cluster.write_attributes.call_args == call({"fan_mode": 3})

    # test adding new fan to the network and HA
    await async_test_rejoin(hass, zigpy_device, [cluster], (1,))


async def async_turn_on(hass, entity_id, speed=None):
    """Turn fan on."""
    data = {
        key: value
        for key, value in [(ATTR_ENTITY_ID, entity_id), (ATTR_SPEED, speed)]
        if value is not None
    }

    await hass.services.async_call(DOMAIN, SERVICE_TURN_ON, data, blocking=True)


async def async_turn_off(hass, entity_id):
    """Turn fan off."""
    data = {ATTR_ENTITY_ID: entity_id} if entity_id else {}

    await hass.services.async_call(DOMAIN, SERVICE_TURN_OFF, data, blocking=True)


async def async_set_speed(hass, entity_id, speed=None):
    """Set speed for specified fan."""
    data = {
        key: value
        for key, value in [(ATTR_ENTITY_ID, entity_id), (ATTR_SPEED, speed)]
        if value is not None
    }

    await hass.services.async_call(DOMAIN, SERVICE_SET_SPEED, data, blocking=True)