"""Enchufes Meross (mesillas) via cuenta Meross en la nube.

Lee MEROSS_EMAIL/PASSWORD del .env. Solo lectura salvo on/off explicito.
Uso: python meross_control.py estado|on|off [nombre]
"""
import asyncio
import os
import ssl
import sys

BASE = os.path.dirname(os.path.abspath(__file__))
if BASE not in sys.path:
    sys.path.insert(0, BASE)


def _env(nombre):
    valor = os.getenv(nombre, "").strip()
    if not valor:
        try:
            with open(os.path.join(BASE, ".env")) as f:
                for linea in f:
                    linea = linea.strip()
                    if linea.startswith(nombre + "="):
                        valor = linea.split("=", 1)[1].strip()
                        break
        except OSError:
            pass
    return valor


async def _dispositivos():
    from meross_iot.http_api import MerossHttpClient
    from meross_iot.manager import MerossManager
    http = await MerossHttpClient.async_from_user_password(
        api_base_url="https://iotx-eu.meross.com",
        email=_env("MEROSS_EMAIL"), password=_env("MEROSS_PASSWORD"),
        ssl_context=ssl.create_default_context())
    mgr = MerossManager(http_client=http)
    await mgr.async_init()
    await mgr.async_device_discovery()
    return mgr, http


def _estado_dev(d):
    try:
        v = getattr(d, "is_on", None)
        if callable(v):
            v = v()
        if isinstance(v, bool):
            return v
    except Exception:
        pass
    return None


async def _actuar(nombre, accion):
    mgr, http = await _dispositivos()
    try:
        objetivo = (nombre or "").lower()
        elegidos = [d for d in mgr.find_devices()
                    if not objetivo or objetivo in (d.name or "").lower()]
        if not elegidos:
            return [f"❌ No encuentro '{nombre}' (solo mesillas)."]
        lineas = []
        for d in elegidos:
            try:
                await d.async_update()
            except Exception:
                pass
        for d in elegidos:
            if accion == "on":
                try:
                    await d.async_turn_on()
                except Exception as e:
                    lineas.append(f"❌ {d.name}: {str(e)[:100]}")
                    continue
            elif accion == "off":
                try:
                    await d.async_turn_off()
                except Exception as e:
                    lineas.append(f"❌ {d.name}: {str(e)[:100]}")
                    continue
            try:
                await d.async_update()
            except Exception:
                pass
            on = _estado_dev(d)
            txt = "encendido" if on else ("apagado" if on is False else "?")
            lineas.append(f"🛏️ {d.name}: <b>{txt}</b>")
        return lineas
    finally:
        mgr.close()
        await http.async_logout()


def controlar(nombre, accion):
    """Devuelve lista de lineas HTML con el resultado."""
    try:
        return asyncio.run(_actuar(nombre or "", accion or "estado"))
    except Exception as e:
        return [f"❌ Error Meross: {str(e)[:150]}"]


def main(argv):
    if len(argv) < 2 or argv[1] not in ("estado", "on", "off"):
        print("Uso: meross_control.py estado|on|off [nombre]")
        return 1
    for linea in controlar(argv[2] if len(argv) > 2 else "", argv[1]):
        print(linea.replace("<b>", "").replace("</b>", ""))
    return 0


if __name__ == "__main__":
    sys.exit(main(sys.argv))