Add support for the Open Energy Monitor Thermostat (#5583)

* Add support for the Open Energy Monitor Thermostat

* Fix linting errors

* Define an update method and local state

* fix linter

* Small tweaks.

Update oemthermostat version, default name and docstrings

* Fail to setup oem platform if connection fails.

* update requirements

* More tweaks to auth and exceptions

* Remove target temp

.coveragerc

@@ -149,6 +149,7 @@ omit =
     homeassistant/components/climate/heatmiser.py
     homeassistant/components/climate/homematic.py
     homeassistant/components/climate/knx.py
+    homeassistant/components/climate/oem.py
     homeassistant/components/climate/proliphix.py
     homeassistant/components/climate/radiotherm.py
     homeassistant/components/cover/garadget.py

homeassistant/components/climate/oem.py

@@ -0,0 +1,148 @@
+"""
+OpenEnergyMonitor Thermostat Support.
+
+This provides a climate component for the ESP8266 based thermostat sold by
+OpenEnergyMonitor.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/climate.oem/
+"""
+import logging
+
+import requests
+import voluptuous as vol
+
+# Import the device class from the component that you want to support
+from homeassistant.components.climate import (
+    ClimateDevice, PLATFORM_SCHEMA, STATE_HEAT, STATE_IDLE, ATTR_TEMPERATURE)
+from homeassistant.const import (CONF_HOST, CONF_USERNAME, CONF_PASSWORD,
+                                 CONF_PORT, TEMP_CELSIUS, CONF_NAME)
+import homeassistant.helpers.config_validation as cv
+
+# Home Assistant depends on 3rd party packages for API specific code.
+REQUIREMENTS = ['oemthermostat==1.1']
+
+_LOGGER = logging.getLogger(__name__)
+
+# Local configs
+CONF_AWAY_TEMP = 'away_temp'
+
+# Validation of the user's configuration
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_HOST): cv.string,
+    vol.Optional(CONF_NAME, default="Thermostat"): cv.string,
+    vol.Optional(CONF_PORT, default=80): cv.port,
+    vol.Inclusive(CONF_USERNAME, 'authentication'): cv.string,
+    vol.Inclusive(CONF_PASSWORD, 'authentication'): cv.string,
+    vol.Optional(CONF_AWAY_TEMP, default=14): vol.Coerce(float)
+})
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Setup oemthermostat."""
+    from oemthermostat import Thermostat
+
+    # Assign configuration variables. The configuration check takes care they
+    # are present.
+    name = config.get(CONF_NAME)
+    host = config.get(CONF_HOST)
+    port = config.get(CONF_PORT)
+    username = config.get(CONF_USERNAME)
+    password = config.get(CONF_PASSWORD)
+    away_temp = config.get(CONF_AWAY_TEMP)
+
+    # If creating the class raises an exception, it failed to connect or
+    # something else went wrong.
+    try:
+        therm = Thermostat(host, port=port,
+                           username=username, password=password)
+    except (ValueError, AssertionError, requests.RequestException):
+        return False
+
+    # Add devices
+    add_devices((ThermostatDevice(hass, therm, name, away_temp), ), True)
+
+
+class ThermostatDevice(ClimateDevice):
+    """Interface class for the oemthermostat module and HA."""
+
+    def __init__(self, hass, thermostat, name, away_temp):
+        """Initialize the device."""
+        self._name = name
+        self.hass = hass
+
+        # Away mode stuff
+        self._away = False
+        self._away_temp = away_temp
+        self._prev_temp = thermostat.setpoint
+
+        self.thermostat = thermostat
+        # Set the thermostat mode to manual
+        self.thermostat.mode = 2
+
+        # set up internal state varS
+        self._state = None
+        self._temperature = None
+        self._setpoint = None
+
+    @property
+    def name(self):
+        """Name of this Thermostat."""
+        return self._name
+
+    @property
+    def temperature_unit(self):
+        """The unit of measurement used by the platform."""
+        return TEMP_CELSIUS
+
+    @property
+    def current_operation(self):
+        """Return current operation i.e. heat, cool, idle."""
+        if self._state:
+            return STATE_HEAT
+        else:
+            return STATE_IDLE
+
+    @property
+    def current_temperature(self):
+        """Return the current temperature."""
+        return self._temperature
+
+    @property
+    def target_temperature(self):
+        """Return the temperature we try to reach."""
+        return self._setpoint
+
+    def set_temperature(self, **kwargs):
+        """Change the setpoint of the thermostat."""
+        # If we are setting the temp, then we don't want away mode anymore.
+        self.turn_away_mode_off()
+
+        temp = kwargs.get(ATTR_TEMPERATURE)
+        self.thermostat.setpoint = temp
+
+    @property
+    def is_away_mode_on(self):
+        """Return true if away mode is on."""
+        return self._away
+
+    def turn_away_mode_on(self):
+        """Turn away mode on."""
+        if not self._away:
+            self._prev_temp = self._setpoint
+
+        self.thermostat.setpoint = self._away_temp
+        self._away = True
+
+    def turn_away_mode_off(self):
+        """Turn away mode off."""
+        if self._away:
+            self.thermostat.setpoint = self._prev_temp
+
+        self._away = False
+
+    def update(self):
+        """Update local state."""
+        self._setpoint = self.thermostat.setpoint
+        self._temperature = self.thermostat.temperature
+        self._state = self.thermostat.state

homeassistant/components/frontend/www_static/home-assistant-polymer

@@ -1 +1 @@
-Subproject commit 62aa6353908851a8fd648a981e9bf06f2a14a6dc
+Subproject commit 5159326a7b3d1ba29ae17a7861fa2eaa8c2c95f6

requirements_all.txt

@@ -352,6 +352,9 @@ neurio==0.3.1
 # homeassistant.components.google
 oauth2client==4.0.0
 
+# homeassistant.components.climate.oem
+oemthermostat==1.1
+
 # homeassistant.components.sensor.openevse
 openevsewifi==0.4