Add support for Tikteck Bluetooth bulbs (#4843)

* Add support for Tikteck Bluetooth bulbs

Adds support for the Tikteck RGBW BLE bulbs. These don't provide "true" RGBW
support - at a certain point in RGB space, the white LEDs turn on. Each bulb
has a specific key that needs to be extracted from the Android app.

* Update tikteck.py

.coveragerc

@@ -184,6 +184,7 @@ omit =
     homeassistant/components/light/lifx.py
     homeassistant/components/light/limitlessled.py
     homeassistant/components/light/osramlightify.py
+    homeassistant/components/light/tikteck.py
     homeassistant/components/light/x10.py
     homeassistant/components/light/yeelight.py
     homeassistant/components/lirc.py

homeassistant/components/light/tikteck.py

@@ -0,0 +1,134 @@
+"""
+Support for Tikteck lights.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/light.tikteck/
+"""
+import logging
+
+import voluptuous as vol
+
+from homeassistant.const import CONF_DEVICES, CONF_NAME, CONF_PASSWORD
+from homeassistant.components.light import (
+    ATTR_BRIGHTNESS, ATTR_RGB_COLOR, SUPPORT_BRIGHTNESS, SUPPORT_RGB_COLOR,
+    Light, PLATFORM_SCHEMA)
+import homeassistant.helpers.config_validation as cv
+
+REQUIREMENTS = ['tikteck==0.4']
+
+_LOGGER = logging.getLogger(__name__)
+
+SUPPORT_TIKTECK_LED = (SUPPORT_BRIGHTNESS | SUPPORT_RGB_COLOR)
+
+DEVICE_SCHEMA = vol.Schema({
+    vol.Optional(CONF_NAME): cv.string,
+    vol.Required(CONF_PASSWORD): cv.string,
+})
+
+PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
+    vol.Optional(CONF_DEVICES, default={}): {cv.string: DEVICE_SCHEMA},
+})
+
+
+# pylint: disable=unused-argument
+def setup_platform(hass, config, add_devices, discovery_info=None):
+    """Set up the Tikteck platform."""
+    lights = []
+    for address, device_config in config[CONF_DEVICES].items():
+        device = {}
+        device['name'] = device_config[CONF_NAME]
+        device['password'] = device_config[CONF_PASSWORD]
+        device['address'] = address
+        light = TikteckLight(device)
+        if light.is_valid:
+            lights.append(light)
+
+    add_devices(lights)
+
+
+class TikteckLight(Light):
+    """Representation of a Tikteck light."""
+
+    def __init__(self, device):
+        """Initialize the light."""
+        import tikteck
+
+        self._name = device['name']
+        self._address = device['address']
+        self._password = device['password']
+        self._brightness = 255
+        self._rgb = [255, 255, 255]
+        self._state = False
+        self.is_valid = True
+        self._bulb = tikteck.tikteck(self._address, "Smart Light",
+                                     self._password)
+        if self._bulb.connect() is False:
+            self.is_valid = False
+            _LOGGER.error(
+                "Failed to connect to bulb %s, %s", self._address, self._name)
+
+    @property
+    def unique_id(self):
+        """Return the ID of this light."""
+        return "{}.{}".format(self.__class__, self._address)
+
+    @property
+    def name(self):
+        """Return the name of the device if any."""
+        return self._name
+
+    @property
+    def is_on(self):
+        """Return true if device is on."""
+        return self._state
+
+    @property
+    def brightness(self):
+        """Return the brightness of this light between 0..255."""
+        return self._brightness
+
+    @property
+    def rgb_color(self):
+        """Return the color property."""
+        return self._rgb
+
+    @property
+    def supported_features(self):
+        """Flag supported features."""
+        return SUPPORT_TIKTECK_LED
+
+    @property
+    def should_poll(self):
+        """Don't poll."""
+        return False
+
+    @property
+    def assumed_state(self):
+        """We can't read the actual state, so assume it matches."""
+        return True
+
+    def set_state(self, red, green, blue, brightness):
+        """Set the bulb state."""
+        return self._bulb.set_state(red, green, blue, brightness)
+
+    def turn_on(self, **kwargs):
+        """Turn the specified light on."""
+        self._state = True
+
+        rgb = kwargs.get(ATTR_RGB_COLOR)
+        brightness = kwargs.get(ATTR_BRIGHTNESS)
+
+        if rgb is not None:
+            self._rgb = rgb
+        if brightness is not None:
+            self._brightness = brightness
+
+        self.set_state(self._rgb[0], self._rgb[1], self._rgb[2],
+                       self.brightness)
+        self.schedule_update_ha_state()
+
+    def turn_off(self, **kwargs):
+        """Turn the specified light off."""
+        self._state = False
+        self.set_state(0, 0, 0, 0)
+        self.schedule_update_ha_state()

requirements_all.txt

@@ -583,6 +583,9 @@ temperusb==1.5.1
 # homeassistant.components.thingspeak
 thingspeak==0.4.0
 
+# homeassistant.components.light.tikteck
+tikteck==0.4
+
 # homeassistant.components.sensor.transmission
 # homeassistant.components.switch.transmission
 transmissionrpc==0.11