Add air_bags plugin

plugins/air_bags.py

@@ -0,0 +1,28 @@
+"AirBags"
+import time
+
+from daemon import DaemonPlugin
+
+class AirBags(DaemonPlugin):
+    "Checks AirBags and sends relevant warnings"
+    last_message = None
+    start = None
+
+    def initialize(self):
+        "Initialize plugin"
+        self.start = time.monotonic()
+
+    def check(self, data):
+        "Checks if the air bags are deployed"
+        if "AirBags-Deploy" not in data:
+            return
+
+        if data["AirBags-Deploy"]:
+            if self.last_message is None:
+                self.emit("switchPlugin", { "plugin": "accident" })
+                message = ("Airbags were released. Calling ambulance in 20 "
+                           "seconds. Tap screen to cancel.")
+                self.speak(message)
+                self.last_message = time.monotonic()
+        else:
+            self.last_message = None