Device support for the xiaomi power strip added. (#32)

* Device support for the xiaomi power strip added.

* Strip added to __init__.

* Status class moved.

* Missing import added.

* Response example added.
PowerMode class introduced.

* Missing return added.

* PowerMode class moved.

* Code reformatted.

mirobo/__init__.py

@@ -3,4 +3,5 @@
 from mirobo.containers import VacuumStatus, ConsumableStatus, CleaningDetails, CleaningSummary, Timer
 from mirobo.vacuum import Vacuum, VacuumException
 from mirobo.plug import Plug
+from mirobo.strip import Strip
 from mirobo.device import Device, DeviceException

mirobo/strip.py

@@ -0,0 +1,71 @@
+from .device import Device
+from typing import Any, Dict
+import enum
+
+
+class PowerMode(enum.Enum):
+    Eco = 'green'
+    Normal = 'normal'
+
+
+class Strip(Device):
+    """Main class representing the smart strip."""
+
+    def on(self):
+        """Power on."""
+        return self.send("set_power", ["on"])
+
+    def off(self):
+        """Power off."""
+        return self.send("set_power", ["off"])
+
+    def status(self):
+        """Retrieve properties."""
+        properties = ['power', 'temperature', 'current', 'mode']
+        values = self.send(
+            "get_prop",
+            properties
+        )
+        return StripStatus(dict(zip(properties, values)))
+
+    def set_power_mode(self, mode: PowerMode):
+        """Set mode."""
+
+        # green, normal
+        return self.send("set_power_mode", [mode.value])
+
+
+class StripStatus:
+    """Container for status reports from the strip."""
+
+    def __init__(self, data: Dict[str, Any]) -> None:
+        # {'power': 'on', 'temperature': 48.11,
+        # 'current': 0.06, 'mode': 'green'}
+        self.data = data
+
+    @property
+    def power(self) -> str:
+        return self.data["power"]
+
+    @property
+    def is_on(self) -> bool:
+        return self.power == "on"
+
+    @property
+    def temperature(self) -> float:
+        return self.data["temperature"]
+
+    @property
+    def current(self) -> float:
+        return self.data["current"]
+
+    @property
+    def mode(self) -> PowerMode:
+        return PowerMode(self.data["mode"])
+
+    def __str__(self) -> str:
+        s = "<StripStatus power=%s, temperature=%s, " \
+            "current=%s mode=%s>" % \
+            (self.power, self.temperature,
+             self.current, self.mode)
+        return s