Migrate Thermostat and HVAC component to climate component (#2825)

* First draft for climate

* Updates for thermostats

homeassistant/components/climate/proliphix.py

@@ -0,0 +1,90 @@
+"""
+Support for Proliphix NT10e Thermostats.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/climate.proliphix/
+"""
+from homeassistant.components.climate import (
+    STATE_COOL, STATE_HEAT, STATE_IDLE, ClimateDevice)
+from homeassistant.const import (
+    CONF_HOST, CONF_PASSWORD, CONF_USERNAME, TEMP_FAHRENHEIT)
+
+REQUIREMENTS = ['proliphix==0.3.1']
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Setup the Proliphix thermostats."""
+    username = config.get(CONF_USERNAME)
+    password = config.get(CONF_PASSWORD)
+    host = config.get(CONF_HOST)
+
+    import proliphix
+
+    pdp = proliphix.PDP(host, username, password)
+
+    add_devices([
+        ProliphixThermostat(pdp)
+    ])
+
+
+# pylint: disable=abstract-method
+class ProliphixThermostat(ClimateDevice):
+    """Representation a Proliphix thermostat."""
+
+    def __init__(self, pdp):
+        """Initialize the thermostat."""
+        self._pdp = pdp
+        # initial data
+        self._pdp.update()
+        self._name = self._pdp.name
+
+    @property
+    def should_poll(self):
+        """Polling needed for thermostat."""
+        return True
+
+    def update(self):
+        """Update the data from the thermostat."""
+        self._pdp.update()
+
+    @property
+    def name(self):
+        """Return the name of the thermostat."""
+        return self._name
+
+    @property
+    def device_state_attributes(self):
+        """Return the device specific state attributes."""
+        return {
+            "fan": self._pdp.fan_state
+        }
+
+    @property
+    def unit_of_measurement(self):
+        """Return the unit of measurement."""
+        return TEMP_FAHRENHEIT
+
+    @property
+    def current_temperature(self):
+        """Return the current temperature."""
+        return self._pdp.cur_temp
+
+    @property
+    def target_temperature(self):
+        """Return the temperature we try to reach."""
+        return self._pdp.setback
+
+    @property
+    def current_operation(self):
+        """Return the current state of the thermostat."""
+        state = self._pdp.hvac_state
+        if state in (1, 2):
+            return STATE_IDLE
+        elif state == 3:
+            return STATE_HEAT
+        elif state == 6:
+            return STATE_COOL
+
+    def set_temperature(self, temperature):
+        """Set new target temperature."""
+        self._pdp.setback = temperature