import GTop from "gi://GTop";

let previousCpuData = new GTop.glibtop_cpu();
GTop.glibtop_get_cpu(previousCpuData);

const computeCPU = (): string => {
  const currentCpuData = new GTop.glibtop_cpu();
  GTop.glibtop_get_cpu(currentCpuData);

  // Calculate the differences from the previous to current data
  const totalDiff = currentCpuData.total - previousCpuData.total;
  const idleDiff = currentCpuData.idle - previousCpuData.idle;

  const cpuUsagePercentage =
    totalDiff > 0 ? ((totalDiff - idleDiff) / totalDiff) * 100 : 0;

  previousCpuData = currentCpuData;

  const cpuUsagePercentageString =
    "    " + Math.floor(cpuUsagePercentage) + "%";

  return cpuUsagePercentageString;
};

export default computeCPU;