First draft of the Xiaomi Mi Home Air Conditioner Companion supported. …

…Fixes rytilahti#76.

miio/__init__.py

@@ -16,6 +16,7 @@
 from miio.fan import Fan
 from miio.wifispeaker import WifiSpeaker
 from miio.airqualitymonitor import AirQualityMonitor
+from miio.airconditioningcompanion import AirConditioningCompanion
 from miio.yeelight import Yeelight
 from miio.device import Device, DeviceException
 from miio.discovery import Discovery

miio/airconditioningcompanion.py

@@ -0,0 +1,102 @@
+import logging
+import enum
+from typing import Any, Dict, Optional
+from collections import defaultdict
+from .device import Device, DeviceException
+
+
+class AirConditioningCompanionStatus:
+    """Container for status reports of the Xiaomi AC Companion."""
+
+    def __init__(self, data):
+        self.data = data
+
+    @property
+    def ac_power(self):
+        """Current power state of the air conditioner."""
+        return self.data[2]
+
+    @property
+    def ac_model(self):
+        """Model of the air conditioner."""
+        return str(self.data[0][0:2] + self.data[0][8:16])
+
+    @property
+    def power(self):
+        """Current power state."""
+        return self.data[1][2:3]
+
+    # FIXME: Introduce a container class
+    @property
+    def wind_force(self):
+        """Current wind force."""
+        if self.data[1][4:5] == '0':
+            return 'low'
+        elif self.data[1][4:5] == '1':
+            return 'medium'
+        elif self.data[1][4:5] == '2':
+            return 'high'
+        else:
+            return 'auto'
+
+    @property
+    def sweep(self) -> bool:
+        """True if sweep is turned on."""
+        return self.data[1][5:6] == '0'
+
+    @property
+    def temp(self) -> int:
+        """Current temperature."""
+        return int(self.data[1][6:8], 16)
+
+    # FIXME: Merge both properties
+    @property
+    def mode(self):
+        """Current mode."""
+        return self.data[1][3:4]
+
+    # FIXME: Introduce a container class
+    @property
+    def operation(self):
+        if self.data[1][2:3] == '0':
+            return 'off'
+        else:
+            if self.data[1][3:4] == '0':
+                return 'heat'
+            elif self.data[1][3:4] == '1':
+                return 'cool'
+            else:
+                return 'auto'
+
+
+class AirConditioningCompanion(Device):
+    """Main class representing Xiaomi Air Conditioning Companion."""
+
+    def status(self) -> AirConditioningCompanionStatus:
+        """Return device status."""
+        status = self.send("get_model_and_state", [])
+        return AirConditioningCompanionStatus(status)
+
+    def learn(self):
+        """Learn an infrared command."""
+        return self.send("start_ir_learn", [30])
+
+    def learn_result(self):
+        """Read the learned command."""
+        return self.send("get_ir_learn_result", [])
+
+    def learn_stop(self):
+        """Stop learning of a infrared command."""
+        return self.send("end_ir_learn", [30])
+
+    def send_ir_code(self, command: str):
+        """Play a captured command.
+
+        :param str command: Command to execute"""
+        return self.send("send_ir_code", [str(command)])
+
+    def send_command(self, command: str):
+        """Send a command to the air conditioner.
+
+        :param str command: Command to execute"""
+        return self.send("send_cmd", [str(command)])