Refactoring, housekeeping, documentation

Add a class diagram. Still needs some details.
Refactor to better respect SOLID principles.
Housekeeping, move and rename classes/files.

app/CMakeLists.txt

@@ -9,15 +9,17 @@ find_package(nlohmann_json 3.11.2 REQUIRED)
 
 add_executable(app
   src/main.cxx
-  src/sensor/SensorsWrapper.cxx
+  src/sensor/LMSensorsFacade.cxx
+  src/sensor/GPUSensorsFacade.cxx
   src/sensor/Sensor.cxx
   src/sensor/NvidiaSensor.cxx
-  src/sensor/HwmonSensor.cxx
+  src/sensor/LMSensor.cxx
-  src/fan/Pwm.cxx
+  src/pwm/PWMControl.cxx
-  src/fan/PwmControl.cxx
+  src/pwm/PWMControlFacade.cxx
   src/fan/HwmonFan.cxx
-  src/Mapping.cxx
+  src/FanGenerator.cxx
   src/Serializer.cxx
+  src/sensor/SensorManager.cxx
 )
 
 set_property(TARGET app PROPERTY CXX_STANDARD 17)

app/doc/ApplicationStart.plantuml

@@ -3,14 +3,14 @@
 start
 :Initialization;
 
-if (Mapping exists) then (yes)
+if (Config exists) then (yes)
-  :Load mapping;
+  :Load config;
 else (no)
-  :Generate mapping;
+  :Do first-start initialization;
 endif
 
-:Enter fan control loop;
 :Load Fan Curves;
+:Enter fan control loop;
 
 stop
 

app/doc/Class.plantuml

@@ -1,32 +1,71 @@
 @startuml
-interface Fan {
-        {abstract} void PWM(int percent)
-        {abstract} int RPM()
-}
-
 interface Sensor {
-        {abstract} int value()
+        + {abstract} int Value()
-        {abstract} string name()
 }
 
-class PwmControl {
+class LMSensor {
-        +void pwm(int percent)
+        - Identifier: string
-        +int pwm()
 
-        + void enableManualControl()
+        + int Value()
-        + void reset()
-
-        - System Paths
-        - Initial Values
 }
 
-Fan <|-- HwmonFan
+class GPUSensor {
+        + int Value()
+}
 
-Sensor <|-- HwmonSensor
+class HWMONFan {
-Sensor <|-- NvidiaSensor
+        - Identifier: string
+        - RPMSensor: Sensor
+        - PWMControl: PWMControl
 
-HwmonFan - Sensor
+        + int RPM()
-HwmonFan -- PwmControl
+        + void PWM(value: int)
+}
 
+class PWMControl {
+        + void PWM(value: int)
+        + int PWM()
+}
 
+class LMSensorsFacade
+{
+        + List<Sensor> RPMSensors()
+        + List<Sensor> TemperatureSensors()
+}
+
+class GPUSensorsFacade
+{
+        + List<Sensor> TemperatureSensors()
+}
+
+class SensorManager
+{
+        - LMSensorsFacade
+        - GPUSensorsFacade
+
+        + List<Sensor> RPMSensors()
+        + List<Sensor> TemperatureSensors()
+}
+
+class FanGenerator
+{
+        + FanList FindFans(List<RPMSensor>, List<PWMControl>)
+}
+
+HWMONFan -- Sensor
+HWMONFan -- PWMControl
+
+Sensor <|-- LMSensor
+Sensor <|-- GPUSensor
+
+SensorManager - Sensor
+
+LMSensor -- LMSensorsFacade
+GPUSensor -- GPUSensorsFacade
+LMSensorsFacade -- SensorManager
+GPUSensorsFacade -- SensorManager
+
+FanGenerator - HWMONFan
+FanGenerator - SensorManager
+FanGenerator - PWMControl
 @enduml

app/doc/Initialization.plantuml

@@ -0,0 +1,23 @@
+@startuml
+participant main
+participant LMSensorsFacade as lms
+participant GPUSensor as gpus
+participant PWMControlFactory as pwmfc
+
+main -> lms: RPMSensors()
+main <-- lms: vector<Sensor>
+
+main -> lms: TemperatureSensors()
+main <-- lms: vector<Sensor>
+
+main -> gpus: GPUSensor()
+main <-- gpus: Sensor
+note right
+        Add GPUSensor to list
+        of temperature sensors
+end note
+
+main -> pwmfc: PWMControllers()
+main <-- pwmfc: vector<PWMControl>
+
+@enduml

app/include/ConfigManager.h

@@ -0,0 +1,28 @@
+#ifndef CONFIGMANAGER_H_
+#define CONFIGMANAGER_H_
+
+#include <memory>
+#include <vector>
+
+#include <nlohmann/json.hpp>
+
+#include <fan/Fan.h>
+
+#define CONFIG_FILE "/etc/fantasize/config.json"
+
+using json = nlohmann::json;
+
+class ConfigManager {
+public:
+  ConfigManager();
+  ~ConfigManager();
+
+  void WriteConfig();
+
+  void SaveFans(std::vector<std::shared_ptr<Fan>> fans);
+
+private:
+  json mConfig;
+};
+
+#endif // CONFIGMANAGER_H_

app/include/FanGenerator.h

@@ -5,14 +5,14 @@
 #include <vector>
 
 #include <fan/Fan.h>
-#include <fan/PwmControl.h>
+#include <pwm/PWMControl.h>
 #include <sensor/Sensor.h>
 
-class Mapping {
+class FanGenerator {
 public:
   std::vector<std::shared_ptr<Fan>>
-  createMapping(std::vector<std::shared_ptr<Sensor>> rpmSensors,
+  FindFans(std::vector<std::shared_ptr<Sensor>> rpmSensors,
-                std::vector<std::shared_ptr<PwmControl>> pwmControls);
+           std::vector<std::shared_ptr<PWMControl>> pwmControls);
 
 private:
   template <class Printable>

app/include/fan/HwmonFan.h

@@ -5,12 +5,12 @@
 #include <memory>
 
 #include <fan/Fan.h>
-#include <fan/PwmControl.h>
+#include <pwm/PWMControl.h>
 #include <sensor/Sensor.h>
 
 class HwmonFan : public Fan {
 public:
-  HwmonFan(std::shared_ptr<PwmControl> pwmControl,
+  HwmonFan(std::shared_ptr<PWMControl> pwmControl,
            std::shared_ptr<Sensor> rpmSensor);
 
   void pwm(int percent) override;
@@ -21,7 +21,7 @@ public:
   const std::string toString() const override;
 
 private:
-  std::shared_ptr<PwmControl> mPwmControl;
+  std::shared_ptr<PWMControl> mPWMControl;
   std::shared_ptr<Sensor> mRpmSensor;
 };
 

app/include/fan/Pwm.h

@@ -1,39 +0,0 @@
-#ifndef PWM_H_
-#define PWM_H_
-
-#include <string>
-#include <unordered_map>
-#include <vector>
-
-enum class PWM_CONTROL_PROPERTY { CONTROL, ENABLE, MODE };
-
-struct PWM_CONTROL {
-  std::string controlPath;
-  std::string enablePath;
-  std::string modePath;
-
-  std::string initialEnable;
-  std::string initialMode;
-};
-
-enum class PWM_ENABLE { FULL_SPEED = 0, MANUAL_CONTROL };
-enum class PWM_MODE { DC = 0, PWM };
-
-class PWM {
-public:
-  PWM();
-  void dumpValues();
-
-  std::vector<PWM_CONTROL> getControls();
-  int readValue(PWM_CONTROL control, PWM_CONTROL_PROPERTY property);
-
-  void setEnable(PWM_CONTROL control, PWM_ENABLE value);
-  void setMode(PWM_CONTROL control, PWM_MODE mode);
-  void setValuePwm(PWM_CONTROL control, int pwm);
-  void setValuePercent(PWM_CONTROL control, int percentage);
-
-private:
-  std::unordered_map<std::string, PWM_CONTROL> mPwmControls;
-};
-
-#endif // PWM_H_

app/include/pwm/PWMControl.h

@@ -11,10 +11,10 @@ enum class PWM_CONTROL_PROPERTY { CONTROL, ENABLE, MODE };
 enum class PWM_ENABLE { FULL_SPEED = 0, MANUAL_CONTROL };
 enum class PWM_MODE { DC = 0, PWM };
 
-class PwmControl : public Printable, public Serializable {
+class PWMControl : public Printable, public Serializable {
 public:
-  PwmControl(std::string controlPath);
+  PWMControl(std::string controlPath);
-  ~PwmControl();
+  ~PWMControl();
 
   void pwm(int percent);
   int pwm();

app/include/pwm/PWMControlFacade.h

@@ -0,0 +1,18 @@
+#ifndef PWMCONTROLFACADE_H_
+#define PWMCONTROLFACADE_H_
+
+#include <filesystem>
+#include <memory>
+#include <regex>
+#include <vector>
+
+#include <pwm/PWMControl.h>
+
+#define HWMON_BASE_PATH "/sys/class/hwmon"
+
+class PWMControlFacade {
+public:
+  std::vector<std::shared_ptr<PWMControl>> PWMControls();
+};
+
+#endif // PWMCONTROLFACADE_H_

app/include/sensor/GPUSensorsFacade.h

@@ -0,0 +1,14 @@
+#ifndef GPUSENSORSFACADE_H_
+#define GPUSENSORSFACADE_H_
+
+#include <memory>
+#include <vector>
+
+#include <sensor/Sensor.h>
+
+class GPUSensorsFacade {
+public:
+  std::vector<std::shared_ptr<Sensor>> TemperatureSensors();
+};
+
+#endif // GPUSENSORSFACADE_H_

app/include/sensor/LMSensor.h

@@ -5,9 +5,9 @@
 
 #include <sensor/Sensor.h>
 
-class HwmonSensor : public Sensor {
+class LMSensor : public Sensor {
 public:
-  HwmonSensor(const sensors_chip_name *chipName, const sensors_feature *feature,
+  LMSensor(const sensors_chip_name *chipName, const sensors_feature *feature,
            const sensors_subfeature *subfeature);
 
   int value() override;

app/include/sensor/LMSensorsFacade.h

@@ -0,0 +1,27 @@
+#ifndef LMSENSORSFACADE_H_
+#define LMSENSORSFACADE_H_
+
+#include <memory>
+#include <vector>
+
+#include <sensors/sensors.h>
+
+#include <sensor/Sensor.h>
+
+class LMSensorsFacade {
+public:
+  LMSensorsFacade();
+  ~LMSensorsFacade();
+
+  std::vector<std::shared_ptr<Sensor>> TemperatureSensors();
+  std::vector<std::shared_ptr<Sensor>> RPMSensors();
+
+private:
+  template <sensors_subfeature_type T>
+  std::vector<std::shared_ptr<Sensor>> Sensors();
+
+private:
+  FILE *mConfigFile;
+};
+
+#endif // LMSENSORSFACADE_H_

app/include/sensor/SensorManager.h

@@ -0,0 +1,20 @@
+#ifndef SENSORMANAGER_H_
+#define SENSORMANAGER_H_
+
+#include <memory>
+#include <sensor/GPUSensorsFacade.h>
+#include <sensor/LMSensorsFacade.h>
+
+class SensorManager {
+public:
+  SensorManager();
+
+  std::vector<std::shared_ptr<Sensor>> TemperatureSensors();
+  std::vector<std::shared_ptr<Sensor>> RPMSensors();
+
+private:
+  std::unique_ptr<LMSensorsFacade> mLMSensorsFacade;
+  std::unique_ptr<GPUSensorsFacade> mGPUSensorsFacade;
+};
+
+#endif // SENSORMANAGER_H_

app/include/sensor/SensorsWrapper.h

@@ -1,26 +0,0 @@
-#ifndef SENSORSWRAPPER_H_
-#define SENSORSWRAPPER_H_
-
-#include <memory>
-#include <vector>
-
-#include <sensors/sensors.h>
-
-#include <fan/PwmControl.h>
-#include <sensor/Sensor.h>
-
-class SensorsWrapper {
-public:
-  SensorsWrapper();
-  ~SensorsWrapper();
-
-  std::vector<std::shared_ptr<Sensor>>
-  Sensors(sensors_subfeature_type sensorType);
-
-  std::vector<std::shared_ptr<PwmControl>> PwmControls();
-
-private:
-  FILE *mConfigFile;
-};
-
-#endif // SENSORSWRAPPER_H_

app/src/ConfigManager.cxx

@@ -0,0 +1,29 @@
+#include <filesystem>
+#include <fstream>
+
+#include <ConfigManager.h>
+#include <memory>
+
+using namespace std;
+namespace fs = std::filesystem;
+
+ConfigManager::ConfigManager() {
+  if (fs::exists(CONFIG_FILE)) {
+    ifstream f(CONFIG_FILE);
+    mConfig = json::parse(f);
+  }
+}
+
+void ConfigManager::SaveFans(vector<shared_ptr<Fan>> fans) {
+  json obj;
+
+  for (auto fan : fans) {
+  }
+}
+
+ConfigManager::~ConfigManager() { WriteConfig(); }
+
+void ConfigManager::WriteConfig() {
+  ofstream f(CONFIG_FILE, ios::trunc);
+  f << mConfig.dump(2) << endl;
+}

app/src/FanGenerator.cxx

@@ -1,20 +1,21 @@
+#include "FanGenerator.h"
 #include <chrono>
 #include <iostream>
 #include <map>
 #include <memory>
 #include <thread>
 
-#include <Mapping.h>
+#include <FanGenerator.h>
 #include <fan/HwmonFan.h>
-#include <fan/PwmControl.h>
+#include <pwm/PWMControl.h>
 
 #define SETTLE_TIMEOUT 5
 
 using namespace std;
 
 vector<shared_ptr<Fan>>
-Mapping::createMapping(vector<shared_ptr<Sensor>> rpmSensors,
+FanGenerator::FindFans(vector<shared_ptr<Sensor>> rpmSensors,
-                       vector<shared_ptr<PwmControl>> pwmControls) {
+                       vector<shared_ptr<PWMControl>> pwmControls) {
   print("RPM Sensors", rpmSensors);
   print("PWM controllers", pwmControls);
   vector<shared_ptr<Fan>> mapping;
@@ -65,7 +66,7 @@ Mapping::createMapping(vector<shared_ptr<Sensor>> rpmSensors,
 }
 
 template <class Printable>
-void Mapping::print(string listLabel, vector<shared_ptr<Printable>> list) {
+void FanGenerator::print(string listLabel, vector<shared_ptr<Printable>> list) {
   cout << listLabel << ": " << endl;
 
   for (auto i : list) {

app/src/Serializer.cxx

@@ -6,8 +6,8 @@
 
 #include <Serializer.h>
 #include <fan/HwmonFan.h>
-#include <fan/PwmControl.h>
+#include <pwm/PWMControl.h>
-#include <sensor/HwmonSensor.h>
+#include <sensor/LMSensor.h>
 
 using namespace std;
 namespace fs = filesystem;
@@ -41,8 +41,8 @@ Serializer::DeserializeFans(vector<shared_ptr<Sensor>> availableSensors) {
   auto data = ReadJson();
   try {
     for (auto &el : data["fans"].items()) {
-      auto pwmControl = make_shared<PwmControl>(el.value()["PwmControl"]);
+      auto pwmControl = make_shared<PWMControl>(el.value()["PWMControl"]);
-      auto rpmSensor = sensorMap[el.value()["HwmonSensor"]];
+      auto rpmSensor = sensorMap[el.value()["LMSensor"]];
 
       mapping.push_back(make_shared<HwmonFan>(pwmControl, rpmSensor));
     }

app/src/fan/HwmonFan.cxx

@@ -1,24 +1,24 @@
-#include "fan/PwmControl.h"
+#include "pwm/PWMControl.h"
 #include <boost/json/object.hpp>
 #include <fan/HwmonFan.h>
 
 using namespace std;
 
-HwmonFan::HwmonFan(shared_ptr<PwmControl> pwmControl,
+HwmonFan::HwmonFan(shared_ptr<PWMControl> pwmControl,
                    shared_ptr<Sensor> rpmSensor)
-    : mPwmControl(pwmControl), mRpmSensor(rpmSensor) {}
+    : mPWMControl(pwmControl), mRpmSensor(rpmSensor) {}
 
-void HwmonFan::pwm(int percent) { mPwmControl->pwm(percent); }
+void HwmonFan::pwm(int percent) { mPWMControl->pwm(percent); }
 
 int HwmonFan::rpm() { return mRpmSensor->value(); }
 
 json HwmonFan::toJson() const {
   json obj;
-  obj = {mPwmControl->toJson(), mRpmSensor->toJson()};
+  obj = {mPWMControl->toJson(), mRpmSensor->toJson()};
   return obj;
 }
 
 const string HwmonFan::toString() const {
-  return "Fan!\nPwmControl: " + mPwmControl->toString() +
+  return "Fan!\nPWMControl: " + mPWMControl->toString() +
          "\nRpmSensor: " + mRpmSensor->toString();
 }

app/src/fan/Pwm.cxx

@@ -1,109 +0,0 @@
-#include <cstdio>
-#include <filesystem>
-#include <fstream>
-#include <iostream>
-#include <regex>
-#include <string>
-
-#include <fan/Pwm.h>
-
-namespace fs = std::filesystem;
-using namespace std;
-
-#define HWMON_BASE_PATH "/sys/class/hwmon"
-
-#define PWM_POSTFIX_ENABLE "_enable"
-#define PWM_POSTFIX_MODE "_mode"
-
-#define PWM_MAX_VALUE 255
-
-PWM::PWM() {
-  const regex re_ctrl_enable("pwm[0-9]_enable");
-  const regex re_ctrl_mode("pwm[0-9]_mode");
-  const regex re_ctrl("pwm[0-9]");
-
-  if (!fs::exists(HWMON_BASE_PATH)) {
-    cerr << HWMON_BASE_PATH << " doesn't exist" << endl;
-  } else {
-    for (const fs::directory_entry &hwmon_device :
-         fs::directory_iterator{HWMON_BASE_PATH}) {
-
-      for (const fs::directory_entry &control :
-           fs::directory_iterator{hwmon_device}) {
-        auto filename = control.path().filename().string();
-
-        if (regex_match(filename, re_ctrl)) {
-          auto controlPath = control.path().string();
-
-          fs::path path_ctrl_enable(
-              string(controlPath + string(PWM_POSTFIX_ENABLE)));
-          fs::path path_ctrl_mode(
-              string(controlPath + string(PWM_POSTFIX_MODE)));
-
-          mPwmControls.insert(
-              {controlPath, PWM_CONTROL{controlPath, path_ctrl_enable.string(),
-                                        path_ctrl_mode.string()}});
-        }
-      }
-    }
-  }
-}
-
-void PWM::dumpValues() {
-  for (auto control : mPwmControls) {
-    cout << control.second.controlPath << ", " << control.second.enablePath
-         << ": " << control.second.modePath << endl;
-  }
-}
-
-vector<PWM_CONTROL> PWM::getControls() {
-  vector<PWM_CONTROL> vec;
-
-  for (auto elem : mPwmControls) {
-    vec.push_back(elem.second);
-  }
-
-  return vec;
-}
-
-void PWM::setEnable(PWM_CONTROL control, PWM_ENABLE value) {
-  cout << control.controlPath << endl;
-  ofstream ostrm(control.enablePath, ios::trunc);
-  ostrm << static_cast<int>(value);
-  ostrm.close();
-}
-
-void PWM::setValuePwm(PWM_CONTROL control, int pwm) {
-  if (pwm < 0 || pwm > 255)
-    return;
-
-  ofstream ostrm(control.controlPath, ios::trunc);
-  ostrm << pwm;
-  ostrm.close();
-}
-
-int PWM::readValue(PWM_CONTROL control, PWM_CONTROL_PROPERTY property) {
-  int result;
-  ifstream istrm;
-
-  switch (property) {
-  case PWM_CONTROL_PROPERTY::CONTROL:
-    istrm.open(control.controlPath, ios::in);
-    istrm >> result;
-    break;
-  case PWM_CONTROL_PROPERTY::ENABLE:
-    istrm.open(control.enablePath, ios::in);
-    istrm >> result;
-    break;
-  case PWM_CONTROL_PROPERTY::MODE:
-    istrm.open(control.modePath, ios::in);
-    istrm >> result;
-    break;
-  }
-
-  return result;
-}
-
-void PWM::setValuePercent(PWM_CONTROL control, int percentage) {
-  setValuePwm(control, PWM_MAX_VALUE * percentage / 100);
-}

app/src/main.cxx

@@ -1,26 +1,22 @@
 #include <filesystem>
 #include <iostream>
 
-#include <Mapping.h>
+#include <FanGenerator.h>
 #include <Serializer.h>
 #include <fan/Fan.h>
-#include <sensor/NvidiaSensor.h>
+#include <pwm/PWMControlFacade.h>
-#include <sensor/SensorsWrapper.h>
+#include <sensor/SensorManager.h>
 
 namespace fs = std::filesystem;
 
 int main() {
+  SensorManager sensorManager;
+  auto pwmSensors = sensorManager.RPMSensors();
 
-  SensorsWrapper sensorsWrapper;
+  PWMControlFacade pwmControlFacade;
+  auto controls = pwmControlFacade.PWMControls();
 
-  auto tempSensors = sensorsWrapper.Sensors(SENSORS_SUBFEATURE_TEMP_INPUT);
+  FanGenerator m;
-  tempSensors.push_back(std::make_shared<NvidiaSensor>());
-
-  auto pwmSensors = sensorsWrapper.Sensors(SENSORS_SUBFEATURE_FAN_INPUT);
-
-  auto controls = sensorsWrapper.PwmControls();
-
-  Mapping m;
   Serializer s;
 
   std::vector<std::shared_ptr<Fan>> fans;
@@ -28,7 +24,7 @@ int main() {
   if (fs::exists(fs::path(SERIALIZATION_DIR) / FANS_JSON_FILENAME)) {
     fans = s.DeserializeFans(pwmSensors);
   } else {
-    fans = m.createMapping(pwmSensors, controls);
+    fans = m.FindFans(pwmSensors, controls);
     s.SerializeFans(fans);
   }
 

app/src/pwm/PWMControl.cxx

@@ -3,7 +3,7 @@
 #include <fstream>
 #include <iostream>
 
-#include <fan/PwmControl.h>
+#include <pwm/PWMControl.h>
 
 #define PWM_POSTFIX_ENABLE "_enable"
 #define PWM_POSTFIX_MODE "_mode"
@@ -13,7 +13,7 @@
 using namespace std;
 namespace fs = filesystem;
 
-PwmControl::PwmControl(string controlPath) : mControlPath(controlPath) {
+PWMControl::PWMControl(string controlPath) : mControlPath(controlPath) {
   fs::path pathEnable(mControlPath + PWM_POSTFIX_ENABLE);
   fs::path pathMode(mControlPath + PWM_POSTFIX_MODE);
 
@@ -31,12 +31,12 @@ PwmControl::PwmControl(string controlPath) : mControlPath(controlPath) {
   istrm.close();
 }
 
-PwmControl::~PwmControl() {
+PWMControl::~PWMControl() {
   cout << "Cleanup" << endl;
   Reset();
 }
 
-void PwmControl::pwm(int percent) {
+void PWMControl::pwm(int percent) {
   int pwmValue = PWM_MAX_VALUE * percent / 100;
 
   ofstream ostrm(mControlPath, ios::trunc);
@@ -44,7 +44,7 @@ void PwmControl::pwm(int percent) {
   ostrm.close();
 }
 
-int PwmControl::pwm() {
+int PWMControl::pwm() {
   int value;
   ifstream istrm;
 
@@ -54,13 +54,13 @@ int PwmControl::pwm() {
   return value;
 }
 
-void PwmControl::EnableManualControl() {
+void PWMControl::EnableManualControl() {
   ofstream ostrm(mEnablePath, ios::trunc);
   ostrm << static_cast<int>(PWM_ENABLE::MANUAL_CONTROL);
   ostrm.close();
 }
 
-void PwmControl::Reset() {
+void PWMControl::Reset() {
   ofstream ostrm(mEnablePath, ios::trunc);
 
   ostrm << mInitialEnable;
@@ -72,11 +72,11 @@ void PwmControl::Reset() {
   ostrm.close();
 }
 
-const string PwmControl::toString() const {
+const string PWMControl::toString() const {
   return fs::path(mControlPath).filename();
 }
 
-json PwmControl::toJson() const {
+json PWMControl::toJson() const {
-  json obj = {"PwmControl", mControlPath};
+  json obj = {"PWMControl", mControlPath};
   return obj;
 }

app/src/pwm/PWMControlFacade.cxx

@@ -0,0 +1,37 @@
+#include <filesystem>
+#include <iostream>
+#include <regex>
+
+#include <pwm/PWMControlFacade.h>
+
+using namespace std;
+namespace fs = std::filesystem;
+
+vector<shared_ptr<PWMControl>> PWMControlFacade::PWMControls() {
+  vector<shared_ptr<PWMControl>> controls;
+
+  const regex re_ctrl_enable("pwm[0-9]_enable");
+  const regex re_ctrl_mode("pwm[0-9]_mode");
+  const regex re_ctrl("pwm[0-9]");
+
+  if (!fs::exists(HWMON_BASE_PATH)) {
+    cout << HWMON_BASE_PATH << " doesn't exist" << endl;
+  } else {
+    for (const fs::directory_entry &hwmon_device :
+         fs::directory_iterator{HWMON_BASE_PATH}) {
+
+      for (const fs::directory_entry &control :
+           fs::directory_iterator{hwmon_device}) {
+        auto filename = control.path().filename().string();
+
+        if (regex_match(filename, re_ctrl)) {
+          auto controlPath = control.path().string();
+
+          controls.push_back(make_shared<PWMControl>(controlPath));
+        }
+      }
+    }
+  }
+
+  return controls;
+}

app/src/sensor/GPUSensorsFacade.cxx

@@ -0,0 +1,9 @@
+#include <sensor/GPUSensorsFacade.h>
+
+#include <sensor/NvidiaSensor.h>
+
+using namespace std;
+
+vector<shared_ptr<Sensor>> GPUSensorsFacade::TemperatureSensors() {
+  return vector<shared_ptr<Sensor>>{make_shared<NvidiaSensor>()};
+}

app/src/sensor/LMSensor.cxx

@@ -1,26 +1,26 @@
 #include <boost/json/kind.hpp>
-#include <sensor/HwmonSensor.h>
+#include <sensor/LMSensor.h>
 #include <sensors/sensors.h>
 
 using namespace std;
 
-HwmonSensor::HwmonSensor(const sensors_chip_name *chipName,
+LMSensor::LMSensor(const sensors_chip_name *chipName,
                    const sensors_feature *feature,
                    const sensors_subfeature *subfeature)
     : mChipName(chipName), mFeature(feature), mSubFeature(subfeature) {}
 
-int HwmonSensor::value() {
+int LMSensor::value() {
   double value;
   sensors_get_value(mChipName, mSubFeature->number, &value);
 
   return static_cast<int>(value);
 }
 
-const string HwmonSensor::toString() const {
+const string LMSensor::toString() const {
   return sensors_get_label(mChipName, mFeature);
 }
 
-json HwmonSensor::toJson() const {
+json LMSensor::toJson() const {
   json obj = {"HwmonSensor", toString()};
   return obj;
 }

app/src/sensor/LMSensorsFacade.cxx

@@ -0,0 +1,50 @@
+#include <stdexcept>
+
+#include <sensors/sensors.h>
+
+#include <sensor/LMSensorsFacade.h>
+
+#include <sensor/LMSensor.h>
+#include <sensor/NvidiaSensor.h>
+
+using namespace std;
+
+#define CONFIG_FILE "/etc/conf.d/sensors"
+
+LMSensorsFacade::LMSensorsFacade() : mConfigFile(fopen(CONFIG_FILE, "r")) {
+  if (sensors_init(mConfigFile) != 0) {
+    throw runtime_error("Config file doesn't exist");
+  }
+}
+
+LMSensorsFacade::~LMSensorsFacade() { sensors_cleanup(); }
+
+std::vector<std::shared_ptr<Sensor>> LMSensorsFacade::TemperatureSensors() {
+  return Sensors<SENSORS_SUBFEATURE_TEMP_INPUT>();
+}
+
+std::vector<std::shared_ptr<Sensor>> LMSensorsFacade::RPMSensors() {
+  return Sensors<SENSORS_SUBFEATURE_FAN_INPUT>();
+}
+
+template <sensors_subfeature_type T>
+std::vector<std::shared_ptr<Sensor>> LMSensorsFacade::Sensors() {
+  std::vector<std::shared_ptr<Sensor>> sensors;
+
+  int c = 0;
+  for (const sensors_chip_name *chipName;
+       (chipName = sensors_get_detected_chips(0, &c)) != NULL;) {
+
+    int d = 0;
+    for (const sensors_feature *feature;
+         (feature = sensors_get_features(chipName, &d)) != NULL;) {
+      auto subFeature = sensors_get_subfeature(chipName, feature, T);
+      if (subFeature) {
+        sensors.push_back(
+            std::make_shared<LMSensor>(chipName, feature, subFeature));
+      }
+    }
+  }
+
+  return sensors;
+}

app/src/sensor/SensorManager.cxx

@@ -0,0 +1,22 @@
+#include <sensor/SensorManager.h>
+
+using namespace std;
+
+SensorManager::SensorManager()
+    : mLMSensorsFacade(make_unique<LMSensorsFacade>()),
+      mGPUSensorsFacade(make_unique<GPUSensorsFacade>()) {}
+
+vector<shared_ptr<Sensor>> SensorManager::TemperatureSensors() {
+  vector<shared_ptr<Sensor>> tempSensors;
+
+  tempSensors = mLMSensorsFacade->TemperatureSensors();
+
+  auto gpuSensors = mGPUSensorsFacade->TemperatureSensors();
+  tempSensors.insert(tempSensors.end(), gpuSensors.begin(), gpuSensors.end());
+
+  return tempSensors;
+}
+
+vector<shared_ptr<Sensor>> SensorManager::RPMSensors() {
+  return mLMSensorsFacade->RPMSensors();
+}

app/src/sensor/SensorsWrapper.cxx

@@ -1,78 +0,0 @@
-#include <cstdio>
-#include <filesystem>
-#include <iostream>
-#include <regex>
-#include <stdexcept>
-#include <type_traits>
-
-#include <sensors/sensors.h>
-
-#include <sensor/SensorsWrapper.h>
-
-#include <sensor/HwmonSensor.h>
-#include <sensor/NvidiaSensor.h>
-
-using namespace std;
-namespace fs = std::filesystem;
-
-#define CONFIG_FILE "/etc/conf.d/sensors"
-#define HWMON_BASE_PATH "/sys/class/hwmon"
-
-SensorsWrapper::SensorsWrapper() : mConfigFile(fopen(CONFIG_FILE, "r")) {
-  if (sensors_init(mConfigFile) != 0) {
-    throw runtime_error("Config file doesn't exist");
-  }
-}
-
-SensorsWrapper::~SensorsWrapper() { sensors_cleanup(); }
-
-std::vector<std::shared_ptr<Sensor>>
-SensorsWrapper::Sensors(sensors_subfeature_type sensorType) {
-  std::vector<std::shared_ptr<Sensor>> sensors;
-
-  int c = 0;
-  for (const sensors_chip_name *chipName;
-       (chipName = sensors_get_detected_chips(0, &c)) != NULL;) {
-
-    int d = 0;
-    for (const sensors_feature *feature;
-         (feature = sensors_get_features(chipName, &d)) != NULL;) {
-      auto subFeature = sensors_get_subfeature(chipName, feature, sensorType);
-      if (subFeature) {
-        sensors.push_back(
-            std::make_shared<HwmonSensor>(chipName, feature, subFeature));
-      }
-    }
-  }
-
-  return sensors;
-}
-
-std::vector<std::shared_ptr<PwmControl>> SensorsWrapper::PwmControls() {
-  std::vector<std::shared_ptr<PwmControl>> controls;
-
-  const std::regex re_ctrl_enable("pwm[0-9]_enable");
-  const std::regex re_ctrl_mode("pwm[0-9]_mode");
-  const std::regex re_ctrl("pwm[0-9]");
-
-  if (!fs::exists(HWMON_BASE_PATH)) {
-    std::cout << HWMON_BASE_PATH << " doesn't exist" << std::endl;
-  } else {
-    for (const fs::directory_entry &hwmon_device :
-         fs::directory_iterator{HWMON_BASE_PATH}) {
-
-      for (const fs::directory_entry &control :
-           fs::directory_iterator{hwmon_device}) {
-        auto filename = control.path().filename().string();
-
-        if (regex_match(filename, re_ctrl)) {
-          auto controlPath = control.path().string();
-
-          controls.push_back(std::make_shared<PwmControl>(controlPath));
-        }
-      }
-    }
-  }
-
-  return controls;
-}