"""Support for Hydrawise sprinkler sensors."""
import logging

import voluptuous as vol

from homeassistant.components.sensor import PLATFORM_SCHEMA
from homeassistant.const import CONF_MONITORED_CONDITIONS
import homeassistant.helpers.config_validation as cv

from . import DATA_HYDRAWISE, DEVICE_MAP, DEVICE_MAP_INDEX, SENSORS, HydrawiseEntity

_LOGGER = logging.getLogger(__name__)

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
    {
        vol.Optional(CONF_MONITORED_CONDITIONS, default=SENSORS): vol.All(
            cv.ensure_list, [vol.In(SENSORS)]
        )
    }
)


def setup_platform(hass, config, add_entities, discovery_info=None):
    """Set up a sensor for a Hydrawise device."""
    hydrawise = hass.data[DATA_HYDRAWISE].data

    sensors = []
    for sensor_type in config.get(CONF_MONITORED_CONDITIONS):
        for zone in hydrawise.relays:
            sensors.append(HydrawiseSensor(zone, sensor_type))

    add_entities(sensors, True)


class HydrawiseSensor(HydrawiseEntity):
    """A sensor implementation for Hydrawise device."""

    @property
    def state(self):
        """Return the state of the sensor."""
        return self._state

    def update(self):
        """Get the latest data and updates the states."""
        mydata = self.hass.data[DATA_HYDRAWISE].data
        _LOGGER.debug("Updating Hydrawise sensor: %s", self._name)
        if self._sensor_type == "watering_time":
            if not mydata.running:
                self._state = 0
            else:
                if int(mydata.running[0]["relay"]) == self.data["relay"]:
                    self._state = int(mydata.running[0]["time_left"] / 60)
                else:
                    self._state = 0
        else:  # _sensor_type == 'next_cycle'
            for relay in mydata.relays:
                if relay["relay"] == self.data["relay"]:
                    if relay["nicetime"] == "Not scheduled":
                        self._state = "not_scheduled"
                    else:
                        self._state = (
                            relay["nicetime"].split(",")[0]
                            + " "
                            + relay["nicetime"].split(" ")[3]
                        )

    @property
    def icon(self):
        """Icon to use in the frontend, if any."""
        return DEVICE_MAP[self._sensor_type][DEVICE_MAP_INDEX.index("ICON_INDEX")]