Remove aggregator, fix changing HWMON paths

Add logic to use actual device paths for the PWM sensors instead of their
standart HWMON paths.

This was done after noticing that due to the load order of kernel modules,
the index of HWMON paths could change.

app/src/pwm/PWMControl.cxx

@@ -1,8 +1,8 @@
-#include <boost/log/attributes/named_scope.hpp>
 #include <filesystem>
 #include <fstream>
 #include <iostream>
 
+#include <boost/log/attributes/named_scope.hpp>
 #include <boost/log/trivial.hpp>
 
 #include <pwm/PWMControl.h>
@@ -15,12 +15,24 @@
 using namespace std;
 namespace fs = filesystem;
 
-PWMControl::PWMControl(string controlPath) : mControlPath(controlPath) {
-  fs::path pathEnable(mControlPath + PWM_POSTFIX_ENABLE);
-  fs::path pathMode(mControlPath + PWM_POSTFIX_MODE);
+PWMControl::PWMControl(string controlPath, int deviceIndex)
+    : mConfigPath(controlPath), mDeviceIndex(deviceIndex) {
+  auto path = fs::path{controlPath};
 
-  mEnablePath = pathEnable;
-  mModePath = pathMode;
+  int fileCount =
+      distance(fs::directory_iterator(path), fs::directory_iterator{});
+  if (fileCount != 1)
+    throw runtime_error("More than one HWMON device present, unsupported");
+
+  for (auto de : fs::directory_iterator(path)) {
+    auto testPath = de.path();
+    mControlPath =
+        fs::path{de.path() / (string("pwm").append(to_string(deviceIndex)))}
+            .string();
+  }
+
+  mEnablePath = fs::path{mControlPath + PWM_POSTFIX_ENABLE}.string();
+  mModePath = fs::path{mControlPath + PWM_POSTFIX_MODE}.string();
 
   ifstream istrm;
 
@@ -85,6 +97,6 @@ void PWMControl::Reset() {
 const string PWMControl::toString() const { return fs::path(mControlPath); }
 
 json PWMControl::toJson() const {
-  json obj = {"PWMControl", mControlPath};
+  json obj = {"PWMControl", {{"Path", mConfigPath}, {"Index", mDeviceIndex}}};
   return obj;
 }