dim / switch off display when not used for 30 secs / 60 secs

src/ha-kiosk-agent

@@ -3,6 +3,7 @@
 import argparse
 import asyncio
 import coloredlogs
+import enum
 import logging
 import os
 import subprocess
@@ -11,8 +12,14 @@ import time
 import ha_mqtt_discoverable
 import sensors
 
+class BrightnessMode(enum.Enum):
+    MODE_OFF = 0
+    MODE_DIM = 1
+    MODE_BRIGHT = 2
+
 class InputListener():
     last_input = 0
+    brightness_mode = BrightnessMode.MODE_OFF
 
     def get_last_input(self):
         return self.last_input
@@ -30,6 +37,23 @@ class InputListener():
                 
             self.last_input = now
 
+    async def brightness_loop(self, logger):
+        logger.info('starting brightess loop')
+        while True:
+            if self.last_input + 60 < time.time():
+                if self.brightness_mode != BrightnessMode.MODE_OFF:
+                    await asyncio.create_subprocess_exec('brightnessctl', 'set', '0', stdout=asyncio.subprocess.DEVNULL, stderr=asyncio.subprocess.DEVNULL)
+                    self.brightness_mode = BrightnessMode.MODE_OFF
+            elif self.last_input + 30 < time.time():
+                if self.brightness_mode != BrightnessMode.MODE_DIM:
+                    await asyncio.create_subprocess_exec('brightnessctl', 'set', '5%', stdout=asyncio.subprocess.DEVNULL, stderr=asyncio.subprocess.DEVNULL)
+                    self.brightness_mode = BrightnessMode.MODE_DIM
+            elif self.brightness_mode != BrightnessMode.MODE_BRIGHT:
+                await asyncio.create_subprocess_exec('brightnessctl', 'set', '50%', stdout=asyncio.subprocess.DEVNULL, stderr=asyncio.subprocess.DEVNULL)
+                self.brightness_mode = BrightnessMode.MODE_BRIGHT
+
+            await asyncio.sleep(0.1)
+
     async def run(self, logger, device: str):
         logger.info('starting display event listener loop')
         proc = await asyncio.create_subprocess_exec(
@@ -37,7 +61,7 @@ class InputListener():
             stdout=asyncio.subprocess.PIPE,
             stderr=asyncio.subprocess.DEVNULL)
 
-        asyncio.gather(self.read_stdout(logger, proc.stdout))
+        asyncio.gather(self.read_stdout(logger, proc.stdout), self.brightness_loop(logger))
 
 async def sensor_loop(logger, sensor_entities):
     logger.info('starting sensor loop')