Add new platform for VeSync switches (#13000)

* Added vesync platform
Support for power toggling, current power, and daily energy kWh

* Adds vesync to requirements file.

* Reorder vesync item in requirements_all.txt from gen_requirements_all

* Removes unnecessary global values that are not used in this component

* Removes try/catch from setup_platform -no throws. Guard check login()

* Remove unnecessary boolean convert

* Fix indentation of log messages

homeassistant/components/switch/vesync.py

@@ -0,0 +1,104 @@
+"""
+Support for Etekcity VeSync switches.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/switch.vesync/
+"""
+import logging
+import voluptuous as vol
+from homeassistant.components.switch import (SwitchDevice, PLATFORM_SCHEMA)
+from homeassistant.const import (CONF_USERNAME, CONF_PASSWORD)
+import homeassistant.helpers.config_validation as cv
+
+
+REQUIREMENTS = ['pyvesync==0.1.1']
+
+_LOGGER = logging.getLogger(__name__)
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Required(CONF_USERNAME): cv.string,
+    vol.Required(CONF_PASSWORD): cv.string,
+})
+
+
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Set up the VeSync switch platform."""
+    from pyvesync.vesync import VeSync
+
+    switches = []
+
+    manager = VeSync(config.get(CONF_USERNAME), config.get(CONF_PASSWORD))
+
+    if not manager.login():
+        _LOGGER.error("Unable to login to VeSync")
+        return
+
+    manager.update()
+
+    if manager.devices is not None and manager.devices:
+        if len(manager.devices) == 1:
+            count_string = 'switch'
+        else:
+            count_string = 'switches'
+
+        _LOGGER.info("Discovered %d VeSync %s",
+                     len(manager.devices), count_string)
+
+        for switch in manager.devices:
+            switches.append(VeSyncSwitchHA(switch))
+            _LOGGER.info("Added a VeSync switch named '%s'",
+                         switch.device_name)
+    else:
+        _LOGGER.info("No VeSync devices found")
+
+    add_devices(switches)
+
+
+class VeSyncSwitchHA(SwitchDevice):
+    """Representation of a VeSync switch."""
+
+    def __init__(self, plug):
+        """Initialize the VeSync switch device."""
+        self.smartplug = plug
+
+    @property
+    def unique_id(self):
+        """Return the ID of this switch."""
+        return self.smartplug.cid
+
+    @property
+    def name(self):
+        """Return the name of the switch."""
+        return self.smartplug.device_name
+
+    @property
+    def current_power_w(self):
+        """Return the current power usage in W."""
+        return self.smartplug.get_power()
+
+    @property
+    def today_energy_kwh(self):
+        """Return the today total energy usage in kWh."""
+        return self.smartplug.get_kwh_today()
+
+    @property
+    def available(self) -> bool:
+        """Return True if switch is available."""
+        return self.smartplug.connection_status == "online"
+
+    @property
+    def is_on(self):
+        """Return True if switch is on."""
+        return self.smartplug.device_status == "on"
+
+    def turn_on(self, **kwargs):
+        """Turn the switch on."""
+        self.smartplug.turn_on()
+
+    def turn_off(self, **kwargs):
+        """Turn the switch off."""
+        self.smartplug.turn_off()
+
+    def update(self):
+        """Handle data changes for node values."""
+        self.smartplug.update()

requirements_all.txt

@@ -1023,6 +1023,9 @@ pyunifi==2.13
 # homeassistant.components.vera
 pyvera==0.2.42
 
+# homeassistant.components.switch.vesync
+pyvesync==0.1.1
+
 # homeassistant.components.media_player.vizio
 pyvizio==0.0.2