"""Интеграционный тест pyfglair.Session против mock_ac.py (без железа)."""
from __future__ import annotations

import asyncio
import time

from pyfglair import Config, Prop, Session, State


async def _wait_state(states: asyncio.Queue, target: State, timeout: float = 10.0):
    deadline = time.monotonic() + timeout
    while True:
        remaining = deadline - time.monotonic()
        assert remaining > 0, f"не дождались {target!r}"
        state, error = await asyncio.wait_for(states.get(), remaining)
        if state == target:
            return state, error


async def _wait_prop(events: asyncio.Queue, prop: Prop, timeout: float = 10.0):
    deadline = time.monotonic() + timeout
    while True:
        remaining = deadline - time.monotonic()
        assert remaining > 0, f"не дождались свойства {prop!r}"
        event = await asyncio.wait_for(events.get(), remaining)
        if event.prop == prop:
            return event


async def test_session_against_mock(mock_ac, ac_env):
    proc = mock_ac()
    states: asyncio.Queue = asyncio.Queue()
    events: asyncio.Queue = asyncio.Queue()

    cfg = Config(
        host="127.0.0.1",
        device_port=proc.port,
        dsn=ac_env["dsn"],
        lanip_key=ac_env["key"],
        lanip_key_id=ac_env["key_id"],
        keepalive_ms=1000,
    )
    session = Session(
        cfg,
        on_state=lambda st, err: states.put_nowait((st, err)),
        on_property=lambda ev: events.put_nowait(ev),
    )
    assert session.start()
    try:
        state, error = await _wait_state(states, State.ONLINE)
        assert state == State.ONLINE
        assert error == 0

        session.batch_begin()
        assert session.get_prop(Prop.OPERATION_MODE)
        assert session.get_prop(Prop.FAN_SPEED)
        assert session.batch_commit()

        op = await _wait_prop(events, Prop.OPERATION_MODE)
        assert op.value.int_value == 6
        assert op.cmd_id >= 0
        fan = await _wait_prop(events, Prop.FAN_SPEED)
        assert fan.value.int_value == 4

        assert session.set_int(Prop.FAN_SPEED, 2)
        cached = session.cached(Prop.FAN_SPEED)
        assert cached is not None and cached.int_value == 2
        assert proc.wait_line("CMD SET fan_speed=2", 10) is not None
    finally:
        await session.async_stop()

    assert session.closed
    assert session.state == State.IDLE
    assert proc.wait_line("DELETE", 10) is not None


async def test_close_idempotent(mock_ac, ac_env):
    proc = mock_ac()
    cfg = Config(
        host="127.0.0.1",
        device_port=proc.port,
        dsn=ac_env["dsn"],
        lanip_key=ac_env["key"],
        lanip_key_id=ac_env["key_id"],
    )
    session = Session(cfg)
    assert session.start()
    await session.async_stop()
    await session.async_stop()
    assert session.close() is None
    assert session.closed
    assert session.set_int(Prop.FAN_SPEED, 1) is False
    assert session.cached(Prop.FAN_SPEED) is None


async def test_close_offline_module(ac_env):
    import socket

    sock = socket.socket()
    sock.bind(("127.0.0.1", 0))
    dead_port = sock.getsockname()[1]
    sock.close()

    cfg = Config(
        host="127.0.0.1",
        device_port=dead_port,
        dsn=ac_env["dsn"],
        lanip_key=ac_env["key"],
        lanip_key_id=ac_env["key_id"],
        keepalive_ms=500,
    )
    session = Session(cfg)
    session.start()
    await asyncio.sleep(0.5)
    await session.async_stop()
    assert session.closed
    assert session.events_dropped == 0


async def test_close_from_callback(mock_ac, ac_env):
    """Без loop колбэк идёт в reader-потоке; close() оттуда не дедлочится."""
    import threading

    proc = mock_ac()
    holder: list[Session] = []
    called = threading.Event()

    def on_state(state, error):
        if state == State.REGISTERING and holder:
            holder[0].close()
            called.set()

    cfg = Config(
        host="127.0.0.1",
        device_port=proc.port,
        dsn=ac_env["dsn"],
        lanip_key=ac_env["key"],
        lanip_key_id=ac_env["key_id"],
    )

    def build():
        session = Session(cfg, loop=None, on_state=on_state)
        holder.append(session)
        session.start()
        return session

    session = await asyncio.to_thread(build)
    assert await asyncio.to_thread(called.wait, 10), "колбэк не пришёл"
    deadline = time.monotonic() + 10
    while not session.closed and time.monotonic() < deadline:
        await asyncio.sleep(0.05)
    assert session.closed
    assert session.close() is None


async def test_log_delivery(mock_ac, ac_env):
    from pyfglair import set_log_handler, set_log_level

    logs: list[tuple[int, str]] = []
    set_log_level(0)
    set_log_handler(lambda level, msg: logs.append((level, msg)))
    try:
        proc = mock_ac()
        cfg = Config(
            host="127.0.0.1",
            device_port=proc.port,
            dsn=ac_env["dsn"],
            lanip_key=ac_env["key"],
            lanip_key_id=ac_env["key_id"],
            keepalive_ms=1000,
        )
        session = Session(cfg)
        session.start()
        deadline = time.monotonic() + 10
        while not logs and time.monotonic() < deadline:
            await asyncio.sleep(0.1)
        await session.async_stop()
    finally:
        set_log_handler(None)
        set_log_level(1)
    assert logs, "логи ядра не доставлены"
    assert all(isinstance(level, int) and message for level, message in logs)


async def test_callbacks_run_in_loop_thread(mock_ac, ac_env):
    proc = mock_ac()
    loop = asyncio.get_running_loop()
    seen: list[object] = []

    cfg = Config(
        host="127.0.0.1",
        device_port=proc.port,
        dsn=ac_env["dsn"],
        lanip_key=ac_env["key"],
        lanip_key_id=ac_env["key_id"],
    )
    session = Session(cfg, on_state=lambda st, err: seen.append(asyncio.get_running_loop()))
    session.start()
    try:
        deadline = time.monotonic() + 10
        while not seen:
            assert time.monotonic() < deadline, "колбэки не пришли"
            await asyncio.sleep(0.05)
    finally:
        await session.async_stop()
    assert all(item is loop for item in seen)