"""Tests for the homewizard component."""

from datetime import timedelta
from unittest.mock import MagicMock
import weakref

from freezegun.api import FrozenDateTimeFactory
from homewizard_energy.errors import DisabledError, UnauthorizedError
import pytest

from homeassistant.components.homewizard.const import DOMAIN
from homeassistant.config_entries import SOURCE_REAUTH, ConfigEntryState
from homeassistant.const import CONF_IP_ADDRESS, CONF_TOKEN
from homeassistant.core import HomeAssistant

from tests.common import MockConfigEntry, async_fire_time_changed


async def test_load_unload_v1(
    hass: HomeAssistant,
    mock_config_entry: MockConfigEntry,
    mock_homewizardenergy: MagicMock,
) -> None:
    """Test loading and unloading of integration with v1 config."""
    mock_config_entry.add_to_hass(hass)
    await hass.config_entries.async_setup(mock_config_entry.entry_id)
    await hass.async_block_till_done()

    weak_ref = weakref.ref(mock_config_entry.runtime_data)
    assert weak_ref() is not None

    assert mock_config_entry.state is ConfigEntryState.LOADED
    assert len(mock_homewizardenergy.combined.mock_calls) == 1

    await hass.config_entries.async_unload(mock_config_entry.entry_id)
    await hass.async_block_till_done()

    assert mock_config_entry.state is ConfigEntryState.NOT_LOADED
    assert weak_ref() is None


async def test_load_unload_v2(
    hass: HomeAssistant,
    mock_config_entry_v2: MockConfigEntry,
    mock_homewizardenergy_v2: MagicMock,
) -> None:
    """Test loading and unloading of integration with v2 config."""
    mock_config_entry_v2.add_to_hass(hass)
    await hass.config_entries.async_setup(mock_config_entry_v2.entry_id)
    await hass.async_block_till_done()

    assert mock_config_entry_v2.state is ConfigEntryState.LOADED
    assert len(mock_homewizardenergy_v2.combined.mock_calls) == 1

    await hass.config_entries.async_unload(mock_config_entry_v2.entry_id)
    await hass.async_block_till_done()

    assert mock_config_entry_v2.state is ConfigEntryState.NOT_LOADED


async def test_load_unload_v2_as_v1(
    hass: HomeAssistant,
    mock_homewizardenergy: MagicMock,
) -> None:
    """Test loading and unloading of integration with v2 config, but without using it."""

    # Simulate v2 config but as a P1 Meter
    mock_config_entry = MockConfigEntry(
        title="Device",
        domain=DOMAIN,
        data={
            CONF_IP_ADDRESS: "127.0.0.1",
            CONF_TOKEN: "00112233445566778899ABCDEFABCDEF",
        },
        unique_id="HWE-P1_5c2fafabcdef",
    )

    mock_config_entry.add_to_hass(hass)
    await hass.config_entries.async_setup(mock_config_entry.entry_id)
    await hass.async_block_till_done()

    assert mock_config_entry.state is ConfigEntryState.LOADED
    assert len(mock_homewizardenergy.combined.mock_calls) == 1

    await hass.config_entries.async_unload(mock_config_entry.entry_id)
    await hass.async_block_till_done()

    assert mock_config_entry.state is ConfigEntryState.NOT_LOADED


async def test_load_failed_host_unavailable(
    hass: HomeAssistant,
    mock_config_entry: MockConfigEntry,
    mock_homewizardenergy: MagicMock,
) -> None:
    """Test setup handles unreachable host."""
    mock_homewizardenergy.combined.side_effect = TimeoutError()
    mock_config_entry.add_to_hass(hass)
    await hass.config_entries.async_setup(mock_config_entry.entry_id)
    await hass.async_block_till_done()

    assert mock_config_entry.state is ConfigEntryState.SETUP_RETRY


async def test_load_detect_api_disabled(
    hass: HomeAssistant,
    mock_config_entry: MockConfigEntry,
    mock_homewizardenergy: MagicMock,
) -> None:
    """Test setup detects disabled API."""
    mock_homewizardenergy.combined.side_effect = DisabledError()
    mock_config_entry.add_to_hass(hass)
    await hass.config_entries.async_setup(mock_config_entry.entry_id)
    await hass.async_block_till_done()

    assert mock_config_entry.state is ConfigEntryState.SETUP_RETRY

    flows = hass.config_entries.flow.async_progress()
    assert len(flows) == 1

    flow = flows[0]
    assert flow.get("step_id") == "reauth_enable_api"
    assert flow.get("handler") == DOMAIN

    assert "context" in flow
    assert flow["context"].get("source") == SOURCE_REAUTH
    assert flow["context"].get("entry_id") == mock_config_entry.entry_id


async def test_load_detect_invalid_token(
    hass: HomeAssistant,
    mock_config_entry_v2: MockConfigEntry,
    mock_homewizardenergy_v2: MagicMock,
) -> None:
    """Test setup detects invalid token."""
    mock_homewizardenergy_v2.combined.side_effect = UnauthorizedError()
    mock_config_entry_v2.add_to_hass(hass)
    await hass.config_entries.async_setup(mock_config_entry_v2.entry_id)
    await hass.async_block_till_done()

    assert mock_config_entry_v2.state is ConfigEntryState.SETUP_ERROR

    flows = hass.config_entries.flow.async_progress()
    assert len(flows) == 1

    flow = flows[0]
    assert flow.get("step_id") == "reauth_confirm_update_token"
    assert flow.get("handler") == DOMAIN

    assert "context" in flow
    assert flow["context"].get("source") == SOURCE_REAUTH
    assert flow["context"].get("entry_id") == mock_config_entry_v2.entry_id


@pytest.mark.usefixtures("mock_homewizardenergy")
async def test_load_removes_reauth_flow(
    hass: HomeAssistant,
    mock_config_entry: MockConfigEntry,
) -> None:
    """Test setup removes reauth flow when API is enabled."""
    mock_config_entry.add_to_hass(hass)

    # Add reauth flow from 'previously' failed init
    mock_config_entry.async_start_reauth(hass)
    await hass.async_block_till_done()

    flows = hass.config_entries.flow.async_progress_by_handler(DOMAIN)
    assert len(flows) == 1

    await hass.config_entries.async_setup(mock_config_entry.entry_id)
    await hass.async_block_till_done()

    assert mock_config_entry.state is ConfigEntryState.LOADED

    # Flow should be removed
    flows = hass.config_entries.flow.async_progress_by_handler(DOMAIN)
    assert len(flows) == 0


@pytest.mark.usefixtures("mock_homewizardenergy")
async def test_disablederror_reloads_integration(
    hass: HomeAssistant,
    mock_config_entry: MockConfigEntry,
    mock_homewizardenergy: MagicMock,
    freezer: FrozenDateTimeFactory,
) -> None:
    """Test DisabledError reloads integration."""
    mock_config_entry.add_to_hass(hass)
    await hass.config_entries.async_setup(mock_config_entry.entry_id)
    await hass.async_block_till_done()

    # Make sure current state is loaded and not reauth flow is active
    assert mock_config_entry.state is ConfigEntryState.LOADED
    flows = hass.config_entries.flow.async_progress_by_handler(DOMAIN)
    assert len(flows) == 0

    # Simulate DisabledError and wait for next update
    mock_homewizardenergy.combined.side_effect = DisabledError()

    freezer.tick(timedelta(seconds=5))
    async_fire_time_changed(hass)
    await hass.async_block_till_done()

    # State should be setup retry and reauth flow should be active
    assert mock_config_entry.state is ConfigEntryState.SETUP_RETRY

    flows = hass.config_entries.flow.async_progress_by_handler(DOMAIN)
    assert len(flows) == 1

    flow = flows[0]
    assert flow.get("step_id") == "reauth_enable_api"
    assert flow.get("handler") == DOMAIN