"""Test APCUPSd config flow setup process."""
from copy import copy
from unittest.mock import patch

import pytest

from homeassistant.components.apcupsd import DOMAIN
from homeassistant.config_entries import SOURCE_IMPORT, SOURCE_USER
from homeassistant.const import CONF_HOST, CONF_PORT, CONF_RESOURCES, CONF_SOURCE
from homeassistant.core import HomeAssistant
from homeassistant.data_entry_flow import FlowResultType

from . import CONF_DATA, MOCK_MINIMAL_STATUS, MOCK_STATUS

from tests.common import MockConfigEntry


def _patch_setup():
    return patch(
        "homeassistant.components.apcupsd.async_setup_entry",
        return_value=True,
    )


async def test_config_flow_cannot_connect(hass: HomeAssistant) -> None:
    """Test config flow setup with connection error."""
    with patch("apcaccess.status.get") as mock_get:
        mock_get.side_effect = OSError()

        result = await hass.config_entries.flow.async_init(
            DOMAIN,
            context={"source": SOURCE_USER},
            data=CONF_DATA,
        )
        assert result["type"] == FlowResultType.FORM
        assert result["errors"]["base"] == "cannot_connect"


async def test_config_flow_no_status(hass: HomeAssistant) -> None:
    """Test config flow setup with successful connection but no status is reported."""
    with patch(
        "apcaccess.status.parse",
        return_value={},  # Returns no status.
    ), patch("apcaccess.status.get", return_value=b""):
        result = await hass.config_entries.flow.async_init(
            DOMAIN, context={"source": SOURCE_USER}
        )
        result = await hass.config_entries.flow.async_configure(result["flow_id"], {})
        assert result["type"] == FlowResultType.ABORT
        assert result["reason"] == "no_status"


async def test_config_flow_duplicate(hass: HomeAssistant) -> None:
    """Test duplicate config flow setup."""
    # First add an exiting config entry to hass.
    mock_entry = MockConfigEntry(
        version=1,
        domain=DOMAIN,
        title="APCUPSd",
        data=CONF_DATA,
        unique_id=MOCK_STATUS["SERIALNO"],
        source=SOURCE_USER,
    )
    mock_entry.add_to_hass(hass)

    with patch("apcaccess.status.parse") as mock_parse, patch(
        "apcaccess.status.get", return_value=b""
    ), _patch_setup():
        mock_parse.return_value = MOCK_STATUS

        # Now, create the integration again using the same config data, we should reject
        # the creation due same host / port.
        result = await hass.config_entries.flow.async_init(
            DOMAIN,
            context={"source": SOURCE_USER},
            data=CONF_DATA,
        )
        assert result["type"] == FlowResultType.ABORT
        assert result["reason"] == "already_configured"

        # Then, we create the integration once again using a different port. However,
        # the apcaccess patch is kept to report the same serial number, we should
        # reject the creation as well.
        another_host = {
            CONF_HOST: CONF_DATA[CONF_HOST],
            CONF_PORT: CONF_DATA[CONF_PORT] + 1,
        }
        result = await hass.config_entries.flow.async_init(
            DOMAIN,
            context={"source": SOURCE_USER},
            data=another_host,
        )
        assert result["type"] == FlowResultType.ABORT
        assert result["reason"] == "already_configured"

        # Now we change the serial number and add it again. This should be successful.
        another_device_status = copy(MOCK_STATUS)
        another_device_status["SERIALNO"] = MOCK_STATUS["SERIALNO"] + "ZZZ"
        mock_parse.return_value = another_device_status

        result = await hass.config_entries.flow.async_init(
            DOMAIN,
            context={"source": SOURCE_USER},
            data=another_host,
        )
        assert result["type"] == FlowResultType.CREATE_ENTRY
        assert result["data"] == another_host


async def test_flow_works(hass: HomeAssistant) -> None:
    """Test successful creation of config entries via user configuration."""
    with patch("apcaccess.status.parse", return_value=MOCK_STATUS), patch(
        "apcaccess.status.get", return_value=b""
    ), _patch_setup() as mock_setup:
        result = await hass.config_entries.flow.async_init(
            DOMAIN,
            context={CONF_SOURCE: SOURCE_USER},
        )
        assert result["type"] == FlowResultType.FORM
        assert result["step_id"] == SOURCE_USER

        result = await hass.config_entries.flow.async_configure(
            result["flow_id"], user_input=CONF_DATA
        )
        await hass.async_block_till_done()
        assert result["type"] == FlowResultType.CREATE_ENTRY
        assert result["title"] == MOCK_STATUS["MODEL"]
        assert result["data"] == CONF_DATA

        mock_setup.assert_called_once()


@pytest.mark.parametrize(
    "extra_status,expected_title",
    [
        ({"UPSNAME": "Friendly Name"}, "Friendly Name"),
        ({"MODEL": "MODEL X"}, "MODEL X"),
        ({"SERIALNO": "ZZZZ"}, "ZZZZ"),
        ({}, "APC UPS"),
    ],
)
async def test_flow_minimal_status(
    hass: HomeAssistant, extra_status: dict[str, str], expected_title: str
) -> None:
    """Test successful creation of config entries via user configuration when minimal status is reported.

    We test different combinations of minimal statuses, where the title of the
    integration will vary.
    """
    with patch("apcaccess.status.parse") as mock_parse, patch(
        "apcaccess.status.get", return_value=b""
    ), _patch_setup() as mock_setup:
        status = MOCK_MINIMAL_STATUS | extra_status
        mock_parse.return_value = status

        result = await hass.config_entries.flow.async_init(
            DOMAIN, context={CONF_SOURCE: SOURCE_USER}, data=CONF_DATA
        )
        await hass.async_block_till_done()
        assert result["type"] == FlowResultType.CREATE_ENTRY
        assert result["data"] == CONF_DATA
        assert result["title"] == expected_title
        mock_setup.assert_called_once()


async def test_flow_import(hass: HomeAssistant) -> None:
    """Test successful creation of config entries via YAML import."""
    with patch("apcaccess.status.parse", return_value=MOCK_STATUS), patch(
        "apcaccess.status.get", return_value=b""
    ), _patch_setup() as mock_setup:
        # Importing from YAML will create an extra field CONF_RESOURCES in the config
        # entry, here we test if it is properly stored.
        resources = ["MODEL"]

        result = await hass.config_entries.flow.async_init(
            DOMAIN,
            context={"source": SOURCE_IMPORT},
            data=CONF_DATA | {CONF_RESOURCES: resources},
        )
        await hass.async_block_till_done()
        assert result["type"] == FlowResultType.CREATE_ENTRY
        assert result["title"] == MOCK_STATUS["MODEL"]
        assert result["data"] == CONF_DATA | {CONF_RESOURCES: resources}

        mock_setup.assert_called_once()