Add ability to change googlecast settings (#38)

* Add ability to change googlecast settings

* rename {set,get}_wutang() to {set,get}_googlecast_settings

songpal/device.py

@@ -184,17 +184,17 @@ async def set_power_settings(self, target: str, value: str) -> None:
         params = {"settings": [{"target": target, "value": value}]}
         return await self.services["system"]["setPowerSettings"](params)
 
-    async def get_wutang(self) -> List[Setting]:
+    async def get_googlecast_settings(self) -> List[Setting]:
         """Get Googlecast settings."""
         return [
             Setting.make(**x)
             for x in await self.services["system"]["getWuTangInfo"]({})
         ]
 
-    async def set_wutang(self, target: str, value: str):
+    async def set_googlecast_settings(self, target: str, value: str):
         """Set Googlecast settings."""
         params = {"settings": [{"target": target, "value": value}]}
-        return await self.services["system"]["setWuTangSettings"](params)
+        return await self.services["system"]["setWuTangInfo"](params)
 
     async def request_settings_tree(self):
         """Get raw settings tree JSON.

songpal/main.py

@@ -253,11 +253,16 @@ async def input(dev: Device, input):
 
 
 @cli.command()
+@click.argument("target", required=False)
+@click.argument("value", required=False)
 @pass_dev
 @coro
-async def googlecast(dev: Device):
+async def googlecast(dev: Device, target, value):
     """Return Googlecast settings."""
-    print_settings(await dev.get_wutang())
+    if target and value:
+        click.echo("Setting %s = %s" % (target, value))
+        await dev.set_googlecast_settings(target, value)
+    print_settings(await dev.get_googlecast_settings())
 
 
 @cli.command()