"""Tests for the TP-Link component."""
from __future__ import annotations

from datetime import timedelta
from unittest.mock import MagicMock, patch

from homeassistant import setup
from homeassistant.components import tplink
from homeassistant.components.tplink.const import DOMAIN
from homeassistant.config_entries import ConfigEntryState
from homeassistant.const import CONF_HOST, EVENT_HOMEASSISTANT_STARTED
from homeassistant.core import HomeAssistant
from homeassistant.helpers.entity_registry import EntityRegistry
from homeassistant.setup import async_setup_component
from homeassistant.util import dt as dt_util

from . import (
    IP_ADDRESS,
    MAC_ADDRESS,
    _mocked_dimmer,
    _patch_discovery,
    _patch_single_discovery,
)

from tests.common import MockConfigEntry, async_fire_time_changed


async def test_configuring_tplink_causes_discovery(hass):
    """Test that specifying empty config does discovery."""
    with patch("homeassistant.components.tplink.Discover.discover") as discover:
        discover.return_value = {MagicMock(): MagicMock()}
        await async_setup_component(hass, tplink.DOMAIN, {tplink.DOMAIN: {}})
        await hass.async_block_till_done()
        call_count = len(discover.mock_calls)
        assert discover.mock_calls

        hass.bus.async_fire(EVENT_HOMEASSISTANT_STARTED)
        await hass.async_block_till_done()
        assert len(discover.mock_calls) == call_count * 2

        async_fire_time_changed(hass, dt_util.utcnow() + timedelta(minutes=15))
        await hass.async_block_till_done()
        assert len(discover.mock_calls) == call_count * 3

        async_fire_time_changed(hass, dt_util.utcnow() + timedelta(minutes=30))
        await hass.async_block_till_done()
        assert len(discover.mock_calls) == call_count * 4


async def test_config_entry_reload(hass):
    """Test that a config entry can be reloaded."""
    already_migrated_config_entry = MockConfigEntry(
        domain=DOMAIN, data={}, unique_id=MAC_ADDRESS
    )
    already_migrated_config_entry.add_to_hass(hass)
    with _patch_discovery(), _patch_single_discovery():
        await async_setup_component(hass, tplink.DOMAIN, {tplink.DOMAIN: {}})
        await hass.async_block_till_done()
        assert already_migrated_config_entry.state == ConfigEntryState.LOADED
        await hass.config_entries.async_unload(already_migrated_config_entry.entry_id)
        await hass.async_block_till_done()
        assert already_migrated_config_entry.state == ConfigEntryState.NOT_LOADED


async def test_config_entry_retry(hass):
    """Test that a config entry can be retried."""
    already_migrated_config_entry = MockConfigEntry(
        domain=DOMAIN, data={CONF_HOST: IP_ADDRESS}, unique_id=MAC_ADDRESS
    )
    already_migrated_config_entry.add_to_hass(hass)
    with _patch_discovery(no_device=True), _patch_single_discovery(no_device=True):
        await async_setup_component(hass, tplink.DOMAIN, {tplink.DOMAIN: {}})
        await hass.async_block_till_done()
        assert already_migrated_config_entry.state == ConfigEntryState.SETUP_RETRY


async def test_dimmer_switch_unique_id_fix_original_entity_still_exists(
    hass: HomeAssistant, entity_reg: EntityRegistry
):
    """Test no migration happens if the original entity id still exists."""
    config_entry = MockConfigEntry(domain=DOMAIN, data={}, unique_id=MAC_ADDRESS)
    config_entry.add_to_hass(hass)
    dimmer = _mocked_dimmer()
    rollout_unique_id = MAC_ADDRESS.replace(":", "").upper()
    original_unique_id = tplink.legacy_device_id(dimmer)
    original_dimmer_entity_reg = entity_reg.async_get_or_create(
        config_entry=config_entry,
        platform=DOMAIN,
        domain="light",
        unique_id=original_unique_id,
        original_name="Original dimmer",
    )
    rollout_dimmer_entity_reg = entity_reg.async_get_or_create(
        config_entry=config_entry,
        platform=DOMAIN,
        domain="light",
        unique_id=rollout_unique_id,
        original_name="Rollout dimmer",
    )

    with _patch_discovery(device=dimmer), _patch_single_discovery(device=dimmer):
        await setup.async_setup_component(hass, DOMAIN, {})
        await hass.async_block_till_done()

    migrated_dimmer_entity_reg = entity_reg.async_get_or_create(
        config_entry=config_entry,
        platform=DOMAIN,
        domain="light",
        unique_id=original_unique_id,
        original_name="Migrated dimmer",
    )
    assert migrated_dimmer_entity_reg.entity_id == original_dimmer_entity_reg.entity_id
    assert migrated_dimmer_entity_reg.entity_id != rollout_dimmer_entity_reg.entity_id