"""Tests covering error paths in the controller."""

from __future__ import annotations

import logging

from homeassistant.core import HomeAssistant
from homeassistant.exceptions import HomeAssistantError
from pytest_homeassistant_custom_component.common import MockConfigEntry

from custom_components.main_gate_controller.const import (
    DOMAIN,
    GATE_STATE_CLOSED,
    NOTIFY_DOMAIN,
    SERVICE_SEND_MESSAGE,
)
from tests.conftest import ServiceCalls, make_entry_data


def _make_failing_handler(fail_on_domain: str, fail_on_service: str, message: str):
    async def _handler(call) -> None:  # type: ignore[no-untyped-def]
        if call.domain == fail_on_domain and call.service == fail_on_service:
            raise HomeAssistantError(message)
        # Recording handled elsewhere – this helper is only for failure simulation.

    return _handler


async def test_notification_failure_continues_cycle(
    hass: HomeAssistant, service_calls: ServiceCalls
):
    """If a notify.send_message call fails, the cycle still finishes normally."""
    switch = "switch.main_gate_relay"
    hass.states.async_set(switch, "off")
    hass.states.async_set("notify.mobile_app_phone", "unknown")

    entry = MockConfigEntry(
        domain=DOMAIN,
        title="Main Gate",
        data=make_entry_data(
            switch_entity_id=switch,
            name="Main Gate",
            open_duration=1,
            pulse_duration=0.1,
            notify_enabled=True,
            notify_entities=["notify.mobile_app_phone"],
        ),
        unique_id=switch,
    )
    entry.add_to_hass(hass)
    # Replace the recording notify handler with one that fails.
    hass.services.async_remove(NOTIFY_DOMAIN, SERVICE_SEND_MESSAGE)
    hass.services.async_register(
        NOTIFY_DOMAIN,
        SERVICE_SEND_MESSAGE,
        _make_failing_handler(
            NOTIFY_DOMAIN, SERVICE_SEND_MESSAGE, "deliberate failure"
        ),
    )
    assert await hass.config_entries.async_setup(entry.entry_id)
    await hass.async_block_till_done()

    controller = entry.runtime_data
    assert controller.async_trigger() is True
    await controller.async_wait_until_idle()

    assert controller.status == GATE_STATE_CLOSED
    assert controller.is_running is False


async def test_notification_log_warning_emitted(
    hass: HomeAssistant, service_calls: ServiceCalls, caplog
):
    """The notify failure path emits a warning via the module logger."""
    switch = "switch.main_gate_relay"
    hass.states.async_set(switch, "off")
    hass.states.async_set("notify.mobile_app_phone", "unknown")

    entry = MockConfigEntry(
        domain=DOMAIN,
        title="Main Gate",
        data=make_entry_data(
            switch_entity_id=switch,
            name="Main Gate",
            open_duration=0.5,
            pulse_duration=0.1,
            notify_enabled=True,
            notify_entities=["notify.mobile_app_phone"],
        ),
        unique_id=switch,
    )
    entry.add_to_hass(hass)
    hass.services.async_remove(NOTIFY_DOMAIN, SERVICE_SEND_MESSAGE)

    async def _failing_notify(call) -> None:
        raise HomeAssistantError("boom")

    hass.services.async_register(NOTIFY_DOMAIN, SERVICE_SEND_MESSAGE, _failing_notify)
    assert await hass.config_entries.async_setup(entry.entry_id)
    await hass.async_block_till_done()

    controller = entry.runtime_data
    with caplog.at_level(logging.WARNING):
        controller.async_trigger()
        await controller.async_wait_until_idle()

    assert any(
        "notification" in r.message.lower() and "boom" in r.message
        for r in caplog.records
    )


async def test_switch_failure_aborts_cycle(
    hass: HomeAssistant, service_calls: ServiceCalls, caplog
):
    """A switch.turn_on failure aborts the cycle and resets state to closed."""
    switch = "switch.main_gate_relay"
    hass.states.async_set(switch, "off")

    entry = MockConfigEntry(
        domain=DOMAIN,
        title="Main Gate",
        data=make_entry_data(
            switch_entity_id=switch,
            name="Main Gate",
            open_duration=20,
            pulse_duration=0.1,
            notify_enabled=False,
            notify_entities=[],
        ),
        unique_id=switch,
    )
    entry.add_to_hass(hass)
    # Replace the recording handler for switch.turn_off with a failing one.
    hass.services.async_remove("switch", "turn_off")

    async def _failing_turn_off(call) -> None:
        raise HomeAssistantError("relay offline")

    hass.services.async_register("switch", "turn_off", _failing_turn_off)
    assert await hass.config_entries.async_setup(entry.entry_id)
    await hass.async_block_till_done()

    controller = entry.runtime_data
    with caplog.at_level(logging.ERROR):
        controller.async_trigger()
        await controller.async_wait_until_idle()

    assert controller.status == GATE_STATE_CLOSED
    assert controller.is_running is False
    assert any(
        "aborted" in r.message.lower() or "cycle aborted" in r.message.lower()
        for r in caplog.records
    )


async def test_unload_cancels_running_cycle(
    hass: HomeAssistant, service_calls: ServiceCalls
):
    """Unloading an entry while a cycle runs cancels the background task."""
    switch = "switch.main_gate_relay"
    hass.states.async_set(switch, "off")

    entry = MockConfigEntry(
        domain=DOMAIN,
        title="Main Gate",
        data=make_entry_data(
            switch_entity_id=switch,
            name="Main Gate",
            open_duration=3,
            pulse_duration=0.2,
            notify_enabled=False,
            notify_entities=[],
        ),
        unique_id=switch,
    )
    entry.add_to_hass(hass)
    assert await hass.config_entries.async_setup(entry.entry_id)
    await hass.async_block_till_done()

    controller = entry.runtime_data
    controller.async_trigger()
    # Immediately start unloading.
    assert await hass.config_entries.async_unload(entry.entry_id)
    await hass.async_block_till_done()

    assert controller.is_running is False
    assert controller.status == GATE_STATE_CLOSED