"""Config flow fglair: меню, ручной ввод, импорт, облако (discover замокан)."""
from __future__ import annotations

import json
from unittest.mock import AsyncMock, patch

from helpers import DSN, KEY_ID, LANIP_KEY
from homeassistant import config_entries
from homeassistant.config_entries import SOURCE_RECONFIGURE
from homeassistant.core import HomeAssistant
from homeassistant.setup import async_setup_component
from pytest_homeassistant_custom_component.common import MockConfigEntry

import pyfglair
from custom_components.fglair.const import DOMAIN
from custom_components.fglair.trial import TrialResult
from pyfglair import Prop, Template, Value, ValueKind
from pyfglair.provision import Device

MANUAL_INPUT = {
    "host": "192.168.1.50",
    "device_port": 80,
    "dsn": DSN,
    "lanip_key": LANIP_KEY,
    "lanip_key_id": KEY_ID,
    "name": "Bedroom",
    "model": "AP-WC1E",
}

LIMITS_INPUT = {
    "temp_min": 16.0,
    "temp_max": 30.0,
    "temp_step": 0.5,
    "temp_num": 1,
    "temp_den": 1,
    "temp_offset": 0,
}

TRIAL_OK = (TrialResult(ok=True), Template.A, False)
TRIAL_NETWORK_FAIL = (
    TrialResult(ok=False, reason="unreachable"),
    Template.A,
    False,
)


def _trial_ok(properties=None):
    return (
        TrialResult(ok=True, properties=properties or {}),
        Template.A,
        False,
    )


async def _menu(hass: HomeAssistant):
    return await hass.config_entries.flow.async_init(
        DOMAIN, context={"source": config_entries.SOURCE_USER}
    )


async def _select(hass: HomeAssistant, flow_id: str, option: str):
    return await hass.config_entries.flow.async_configure(
        flow_id, {"next_step_id": option}
    )


async def _configure(hass: HomeAssistant, flow_id: str, user_input: dict):
    return await hass.config_entries.flow.async_configure(flow_id, user_input)


async def _pages(
    hass: HomeAssistant,
    flow_id: str,
    *,
    template: str = "A",
    caps: dict | None = None,
    limits: dict | None = None,
):
    """Проходит страницы template → capabilities → limits."""
    result = await _configure(hass, flow_id, {"template": template})
    assert result["step_id"] == "capabilities", result
    result = await _configure(hass, flow_id, caps or {})
    assert result["step_id"] == "limits", result
    return await _configure(hass, flow_id, limits or LIMITS_INPUT)


def _suggested(schema, field: str):
    for key in schema.schema:
        if getattr(key, "schema", None) == field:
            description = key.description
            if isinstance(description, dict):
                return description.get("suggested_value")
    return None


async def test_user_menu(hass: HomeAssistant):
    result = await _menu(hass)
    assert result["type"] == "menu"
    assert set(result["menu_options"]) == {"cloud", "manual", "import_json"}


async def test_manual_success(hass: HomeAssistant):
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_OK,
    ) as trial:
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "manual")
        assert result["type"] == "form"
        result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
        assert result["step_id"] == "template"
        result = await _pages(hass, result["flow_id"])
    assert result["type"] == "create_entry"
    assert result["title"] == "Bedroom"
    assert result["result"].unique_id == DSN
    data = result["data"]
    assert data["lanip_key_id"] == KEY_ID
    assert data["template"] == "A"
    assert data["temp_step"] == 5
    assert data["overrides"]["adjust_temperature"] == {
        "num": 1,
        "den": 1,
        "offset": 0,
        "min": 160,
        "max": 300,
    }
    assert isinstance(data["features"], dict)
    assert data["features"]["mode_heat"] is True
    trial.assert_called_once()
    assert trial.call_args.args[0]["host"] == "192.168.1.50"


async def test_template_change_and_conversion(hass: HomeAssistant):
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_OK,
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "manual")
        result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
        result = await _pages(
            hass,
            result["flow_id"],
            template="B",
            limits={
                **LIMITS_INPUT,
                "temp_min": 17.0,
                "temp_max": 28.0,
                "temp_step": 1.0,
                "temp_num": 2,
                "temp_den": 4,
                "temp_offset": 5,
            },
        )
    assert result["type"] == "create_entry"
    assert result["data"]["template"] == "B"
    assert result["data"]["temp_step"] == 10
    assert result["data"]["overrides"]["adjust_temperature"] == {
        "num": 2,
        "den": 4,
        "offset": 5,
        "min": 170,
        "max": 280,
    }


async def test_limits_invalid_range(hass: HomeAssistant):
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_OK,
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "manual")
        result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
        result = await _configure(
            hass, result["flow_id"], {"template": "B"}
        )
        result = await _configure(hass, result["flow_id"], {})
        assert result["step_id"] == "limits"
        result = await _configure(
            hass,
            result["flow_id"],
            {**LIMITS_INPUT, "temp_min": 30.0, "temp_max": 16.0},
        )
        assert result["type"] == "form"
        assert result["errors"] == {"base": "invalid_range"}
        result = await _configure(hass, result["flow_id"], LIMITS_INPUT)
    assert result["type"] == "create_entry"


async def test_limits_unreachable_range(hass: HomeAssistant):
    """Конверсия выводит таблицу за min/max — пустой достижимый диапазон."""
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_OK,
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "manual")
        result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
        result = await _configure(
            hass, result["flow_id"], {"template": "A"}
        )
        result = await _configure(hass, result["flow_id"], {})
        result = await _configure(
            hass,
            result["flow_id"],
            {
                **LIMITS_INPUT,
                "temp_min": 30.0,
                "temp_max": 40.0,
                "temp_num": 1,
                "temp_den": 2,
            },
        )
    assert result["type"] == "form"
    assert result["errors"] == {"base": "invalid_range"}


async def test_template_device_values(hass: HomeAssistant):
    props = {
        Prop.DISPLAY_TEMPERATURE: Value(ValueKind.INT, 200),
        Prop.OPERATION_MODE: Value(ValueKind.INT, 3),
        Prop.FAN_SPEED: Value(ValueKind.INT, 4),
        Prop.DEVICE_CAPABILITIES: Value(ValueKind.INT, 0b11011),
        Prop.AF_VERTICAL_NUM_DIR: Value(ValueKind.INT, 5),
    }
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=(
            TrialResult(ok=True, properties=props),
            Template.A,
            False,
        ),
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "manual")
        result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
        assert result["step_id"] == "template"
        values = result["description_placeholders"]["device_values"]
        assert "20.0" in values
        assert "0x0000001B" in values
        assert "cool" in values
        assert "направлений заслонок: верт. 5" in values
        # capabilities: дефолты из маски, swing выключен
        result = await _configure(hass, result["flow_id"], {"template": "A"})
        assert result["step_id"] == "capabilities"
        assert _suggested(result["data_schema"], "swing_vertical") is False
        assert _suggested(result["data_schema"], "mode_cool") is True
        assert _suggested(result["data_schema"], "af_vertical_direction") is True


async def test_manual_connect_error(hass: HomeAssistant):
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_NETWORK_FAIL,
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "manual")
        result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
    assert result["type"] == "form"
    assert result["errors"] == {"base": "cannot_connect"}


async def test_manual_key_mismatch_error(hass: HomeAssistant):
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=(
            TrialResult(ok=False, reason="key_mismatch"),
            Template.A,
            False,
        ),
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "manual")
        result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
    assert result["type"] == "form"
    assert result["errors"] == {"base": "key_mismatch"}


async def test_manual_already_configured(hass: HomeAssistant):
    existing = MockConfigEntry(domain=DOMAIN, data={}, unique_id=DSN)
    existing.add_to_hass(hass)
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_OK,
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "manual")
        result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
    assert result["type"] == "abort"
    assert result["reason"] == "already_configured"


async def test_manual_error_keeps_input(hass: HomeAssistant):
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_NETWORK_FAIL,
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "manual")
        result = await _configure(hass, result["flow_id"], MANUAL_INPUT)
    assert result["errors"] == {"base": "cannot_connect"}
    assert _suggested(result["data_schema"], "host") == MANUAL_INPUT["host"]
    assert _suggested(result["data_schema"], "dsn") == DSN
    assert _suggested(result["data_schema"], "lanip_key") is None


async def test_import_json_success(hass: HomeAssistant):
    payload = json.dumps(
        {
            "ip_address": "192.168.1.60",
            "dsn": DSN,
            "lanip_key": LANIP_KEY,
            "lanip_key_id": KEY_ID,
            "model": "AP-WB2E",
            "name": "Kitchen",
        }
    )
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=(TrialResult(ok=True), Template.B, False),
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "import_json")
        assert result["type"] == "form"
        result = await _configure(
            hass, result["flow_id"], {"config_json": payload}
        )
        assert result["step_id"] == "template"
        assert _suggested(result["data_schema"], "template") == "B"
        result = await _pages(hass, result["flow_id"], template="B")
    assert result["type"] == "create_entry"
    assert result["data"]["host"] == "192.168.1.60"
    assert result["data"]["template"] == "B"


async def test_import_json_invalid(hass: HomeAssistant):
    result = await _menu(hass)
    result = await _select(hass, result["flow_id"], "import_json")
    result = await _configure(
        hass, result["flow_id"], {"config_json": "not json"}
    )
    assert result["type"] == "form"
    assert result["errors"] == {"base": "invalid_import"}


async def test_cloud_flow_success(hass: HomeAssistant):
    device = Device(
        name="Bedroom",
        model="AP-WC1E",
        dsn=DSN,
        lan_ip="192.168.1.50",
        lanip_key=LANIP_KEY,
        lanip_key_id=KEY_ID,
        region="eu",
    )
    with patch(
        "pyfglair.discover", AsyncMock(return_value=[device])
    ), patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_OK,
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "cloud")
        assert result["type"] == "form"
        result = await _configure(
            hass,
            result["flow_id"],
            {"email": "user@example.com", "password": "secret", "region": "eu"},
        )
        assert result["step_id"] == "cloud_device"
        result = await _configure(hass, result["flow_id"], {"dsn": DSN})
        assert result["step_id"] == "template"
        result = await _pages(hass, result["flow_id"])
    assert result["type"] == "create_entry"
    assert result["data"]["host"] == "192.168.1.50"
    assert result["data"]["lanip_key_id"] == KEY_ID


async def test_cloud_no_devices(hass: HomeAssistant):
    with patch(
        "pyfglair.discover",
        AsyncMock(
            side_effect=pyfglair.ProvisionError(
                "У аккаунта нет устройств", "no_devices"
            )
        ),
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "cloud")
        result = await _configure(
            hass,
            result["flow_id"],
            {"email": "user@example.com", "password": "secret", "region": "eu"},
        )
    assert result["type"] == "form"
    assert result["errors"] == {"base": "no_devices"}


async def test_cloud_auth_error(hass: HomeAssistant):
    with patch(
        "pyfglair.discover",
        AsyncMock(
            side_effect=pyfglair.ProvisionError("401 unauthorized", "auth")
        ),
    ):
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "cloud")
        result = await _configure(
            hass,
            result["flow_id"],
            {"email": "user@example.com", "password": "bad", "region": "eu"},
        )
    assert result["type"] == "form"
    assert result["errors"] == {"base": "invalid_auth"}


async def test_yaml_import(hass: HomeAssistant):
    payload = {
        "ip_address": "192.168.1.70",
        "dsn": DSN,
        "lanip_key": LANIP_KEY,
        "lanip_key_id": KEY_ID,
        "model": "AP-WF1E",
    }
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=(TrialResult(ok=True), Template.F, False),
    ):
        assert await async_setup_component(hass, DOMAIN, {DOMAIN: payload})
        await hass.async_block_till_done()
    entries = hass.config_entries.async_entries(DOMAIN)
    assert len(entries) == 1
    assert entries[0].data["template"] == "F"
    assert entries[0].data["host"] == "192.168.1.70"
    assert isinstance(entries[0].data["features"], dict)


async def test_yaml_import_invalid(hass: HomeAssistant):
    assert await async_setup_component(hass, DOMAIN, {DOMAIN: "not-a-dict"})
    await hass.async_block_till_done()
    assert hass.config_entries.async_entries(DOMAIN) == []
    assert not hass.config_entries.flow.async_progress()


async def test_import_json_null_device_port(hass: HomeAssistant):
    payload = json.dumps(
        {
            "ip_address": "192.168.1.71",
            "dsn": DSN,
            "lanip_key": LANIP_KEY,
            "lanip_key_id": str(KEY_ID),
            "device_port": None,
        }
    )
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_OK,
    ) as trial:
        result = await _menu(hass)
        result = await _select(hass, result["flow_id"], "import_json")
        result = await _configure(
            hass, result["flow_id"], {"config_json": payload}
        )
        assert result["step_id"] == "template"
        result = await _pages(hass, result["flow_id"])
    assert result["type"] == "create_entry"
    assert result["data"]["device_port"] == 80
    assert trial.call_args.args[0]["device_port"] == 80


RECONFIGURE_ENTRY_DATA = {
    "host": "127.0.0.1",
    "device_port": 9,
    "dsn": DSN,
    "lanip_key": LANIP_KEY,
    "lanip_key_id": KEY_ID,
    "name": "Old name",
    "model": "AP-WC1E",
    "template": "A",
}


async def test_reconfigure_success(hass: HomeAssistant, mock_ac, socket_enabled):
    from test_entities import _setup_entry

    proc = mock_ac(["--set", "operation_mode=6"])
    entry = await _setup_entry(hass, proc.port)
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_OK,
    ):
        result = await hass.config_entries.flow.async_init(
            DOMAIN,
            context={"source": SOURCE_RECONFIGURE, "entry_id": entry.entry_id},
        )
        assert result["type"] == "menu"
        result = await _select(hass, result["flow_id"], "manual")
        assert result["type"] == "form"
        assert _suggested(result["data_schema"], "host") == "127.0.0.1"
        result = await _configure(
            hass, result["flow_id"], {**MANUAL_INPUT, "name": "Renamed"}
        )
        assert result["step_id"] == "template"
        result = await _pages(hass, result["flow_id"])
    assert result["type"] == "abort"
    assert result["reason"] == "reconfigure_successful"
    await hass.async_block_till_done()
    assert entry.data["name"] == "Renamed"
    assert entry.state.name == "LOADED"
    assert await hass.config_entries.async_unload(entry.entry_id)


async def test_reconfigure_wrong_device(hass: HomeAssistant):
    entry = MockConfigEntry(
        domain=DOMAIN, data=RECONFIGURE_ENTRY_DATA, unique_id=DSN
    )
    entry.add_to_hass(hass)
    with patch(
        "custom_components.fglair.config_flow._run_trial",
        return_value=TRIAL_OK,
    ):
        result = await hass.config_entries.flow.async_init(
            DOMAIN,
            context={"source": SOURCE_RECONFIGURE, "entry_id": entry.entry_id},
        )
        result = await _select(hass, result["flow_id"], "manual")
        result = await _configure(
            hass,
            result["flow_id"],
            {**MANUAL_INPUT, "dsn": "AC000W00OTHER001"},
        )
    assert result["type"] == "abort"
    assert result["reason"] == "unique_id_mismatch"


async def test_options_flow_shows_and_updates_key(
    hass: HomeAssistant, mock_ac, socket_enabled
):
    from test_entities import _setup_entry

    proc = mock_ac(["--set", "operation_mode=6"])
    entry = await _setup_entry(hass, proc.port)
    result = await hass.config_entries.options.async_init(entry.entry_id)
    assert result["type"] == "form"
    assert result["step_id"] == "init"
    assert _suggested(result["data_schema"], "lanip_key") == LANIP_KEY
    assert result["description_placeholders"]["dsn"] == DSN

    result = await hass.config_entries.options.async_configure(
        result["flow_id"], {"lanip_key": LANIP_KEY}
    )
    assert result["type"] == "create_entry"
    await hass.async_block_till_done()
    assert entry.data["lanip_key"] == LANIP_KEY
    assert await hass.config_entries.async_unload(entry.entry_id)


async def test_options_flow_new_key_reloads(
    hass: HomeAssistant, mock_ac, socket_enabled
):
    from test_entities import _setup_entry

    proc = mock_ac(["--set", "operation_mode=6"])
    entry = await _setup_entry(hass, proc.port)
    result = await hass.config_entries.options.async_init(entry.entry_id)
    result = await hass.config_entries.options.async_configure(
        result["flow_id"], {"lanip_key": "bmV3LWtleQ=="}
    )
    assert result["type"] == "create_entry"
    await hass.async_block_till_done()
    assert entry.data["lanip_key"] == "bmV3LWtleQ=="
    assert entry.state.name in ("LOADED", "SETUP_RETRY")
    if entry.state.name == "LOADED":
        assert await hass.config_entries.async_unload(entry.entry_id)


async def test_run_trial_probes_unknown_model(hass: HomeAssistant):
    """Без oem_model шаблон определяется пробингом A/B/F."""
    from custom_components.fglair import config_flow as cf

    with patch.object(
        cf, "probe_template", return_value=(Template.B, {})
    ) as probe, patch.object(
        cf, "trial_connect", return_value=TrialResult(ok=True)
    ):
        result = await hass.async_add_executor_job(
            cf._run_trial,
            {
                "host": "127.0.0.1",
                "dsn": DSN,
                "lanip_key": LANIP_KEY,
                "lanip_key_id": KEY_ID,
                "model": "",
                "template": "A",
            },
        )
    trial_result, template, probed = result
    assert trial_result.ok
    assert template is Template.B
    assert probed is True
    probe.assert_called_once()