"""
Support for Rain Bird Irrigation system LNK WiFi Module.

For more details about this component, please refer to the documentation at
https://home-assistant.io/components/switch.rainbird/
"""

import logging

import voluptuous as vol

from homeassistant.components.rainbird import DATA_RAINBIRD
from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
from homeassistant.const import (CONF_SWITCHES, CONF_ZONE,
                                 CONF_FRIENDLY_NAME, CONF_TRIGGER_TIME,
                                 CONF_SCAN_INTERVAL)
from homeassistant.helpers import config_validation as cv

DEPENDENCIES = ['rainbird']

DOMAIN = 'rainbird'
_LOGGER = logging.getLogger(__name__)

PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
    vol.Required(CONF_SWITCHES, default={}): vol.Schema({
        cv.string: {
            vol.Optional(CONF_FRIENDLY_NAME): cv.string,
            vol.Required(CONF_ZONE): cv.string,
            vol.Required(CONF_TRIGGER_TIME): cv.string,
            vol.Optional(CONF_SCAN_INTERVAL): cv.string,
        },
    }),
})


def setup_platform(hass, config, add_entities, discovery_info=None):
    """Set up Rain Bird switches over a Rain Bird controller."""
    controller = hass.data[DATA_RAINBIRD]

    devices = []
    for dev_id, switch in config.get(CONF_SWITCHES).items():
        devices.append(RainBirdSwitch(controller, switch, dev_id))
    add_entities(devices, True)


class RainBirdSwitch(SwitchDevice):
    """Representation of a Rain Bird switch."""

    def __init__(self, rb, dev, dev_id):
        """Initialize a Rain Bird Switch Device."""
        self._rainbird = rb
        self._devid = dev_id
        self._zone = int(dev.get(CONF_ZONE))
        self._name = dev.get(CONF_FRIENDLY_NAME,
                             "Sprinkler {}".format(self._zone))
        self._state = None
        self._duration = dev.get(CONF_TRIGGER_TIME)
        self._attributes = {
            "duration": self._duration,
            "zone": self._zone
        }

    @property
    def device_state_attributes(self):
        """Return state attributes."""
        return self._attributes

    @property
    def name(self):
        """Get the name of the switch."""
        return self._name

    def turn_on(self, **kwargs):
        """Turn the switch on."""
        self._rainbird.startIrrigation(int(self._zone), int(self._duration))

    def turn_off(self, **kwargs):
        """Turn the switch off."""
        self._rainbird.stopIrrigation()

    def get_device_status(self):
        """Get the status of the switch from Rain Bird Controller."""
        return self._rainbird.currentIrrigation() == self._zone

    def update(self):
        """Update switch status."""
        self._state = self.get_device_status()

    @property
    def is_on(self):
        """Return true if switch is on."""
        return self._state