todo: find battery level

src/battery.c

@@ -0,0 +1,24 @@
+#include "../includes/battery.h"
+
+#include <windows.h>
+
+#include <hidsdi.h>
+#include <stdio.h>
+
+int get_battery_level(const char *device_path, bool *is_charging) {
+  HANDLE hDevice =
+      CreateFile(device_path, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE,
+                 NULL, OPEN_EXISTING, 0, NULL);
+  if (hDevice == INVALID_HANDLE_VALUE) {
+    fprintf_s(stderr, "Failed to open device.\n");
+
+    return -1;
+  }
+
+  int batteryLevel;
+
+  // TODO
+
+  CloseHandle(hDevice);
+  return batteryLevel;
+}