From 0073239a40dc1b8ec57dfa822541e6d721626162 Mon Sep 17 00:00:00 2001
From: Fabio Manganiello <fabio@manganiello.tech>
Date: Tue, 18 Apr 2023 18:26:02 +0200
Subject: [PATCH] Support for CPU `load_average` entity.

---
 platypush/plugins/system/__init__.py | 18 ++++++++++++++++--
 platypush/schemas/system.py          |  3 ++-
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/platypush/plugins/system/__init__.py b/platypush/plugins/system/__init__.py
index 80bce33f9..20e5392e4 100644
--- a/platypush/plugins/system/__init__.py
+++ b/platypush/plugins/system/__init__.py
@@ -1,10 +1,11 @@
 import socket
 
 from datetime import datetime
-from typing import Union, List, Optional, Dict
+from typing import Tuple, Union, List, Optional, Dict
 from typing_extensions import override
 
 from platypush.entities import Entity
+from platypush.entities.devices import Device
 from platypush.entities.managers import EntityManager
 from platypush.entities.sensors import NumericSensor, PercentSensor
 from platypush.entities.system import (
@@ -194,7 +195,7 @@ class SystemPlugin(SensorPlugin, EntityManager):
         return self._cpu_frequency_per_cpu() if per_cpu else self._cpu_frequency_avg()
 
     @action
-    def load_avg(self) -> List[float]:
+    def load_avg(self) -> Tuple[float, float, float]:
         """
         Get the average load as a vector that represents the load within the last 1, 5 and 15 minutes.
         """
@@ -792,6 +793,7 @@ class SystemPlugin(SensorPlugin, EntityManager):
                 'cpu': {
                     'frequency': self._cpu_frequency_avg(),
                     'info': self._cpu_info,
+                    'load_avg': self.load_avg().output,
                     'stats': self._cpu_stats(),
                     'times': self._cpu_times_avg(),
                     'percent': self.cpu_percent().output / 100.0,  # type: ignore
@@ -839,6 +841,18 @@ class SystemPlugin(SensorPlugin, EntityManager):
                             for key, time_percent in cpu['times'].items()
                         ],
                     ),
+                    Device(
+                        id='system:cpu:load_avg',
+                        name='Load Average',
+                        children=[
+                            NumericSensor(
+                                id=f'system:cpu:load_avg:{mins}',
+                                name=f'Last {mins} minute(s)',
+                                value=round(val, 2),
+                            )
+                            for val, mins in zip(cpu['load_avg'], [1, 5, 15])
+                        ],
+                    ),
                     NumericSensor(
                         id='system:cpu:frequency',
                         name='Frequency',
diff --git a/platypush/schemas/system.py b/platypush/schemas/system.py
index 3f0855a8f..fb4963820 100644
--- a/platypush/schemas/system.py
+++ b/platypush/schemas/system.py
@@ -1,5 +1,5 @@
 from dataclasses import dataclass, field
-from typing import List, Optional
+from typing import List, Optional, Tuple
 
 from marshmallow import pre_load
 from marshmallow.validate import Range
@@ -222,6 +222,7 @@ class CpuData:
     times: CpuTimes
     frequency: CpuFrequency
     stats: CpuStats
+    load_avg: Tuple[float, float, float]
     percent: float = percent_field()