import { GLib } from "astal";

const cycles_count = (): string => {
  try {
    const [success, cycles] = GLib.file_get_contents(
      "/sys/class/power_supply/BAT0/cycle_count",
    );
    if (!success || !cycles) {
      throw new Error(
        "Failed to read /sys/class/ or the file content is null.",
      );
    }
    const cyclesinfo = new TextDecoder("utf-8").decode(cycles);
    return cyclesinfo.replace(/\n$/, "");
  } catch (error) {
    console.error("Error get battery cycles_count");
    return "";
  }
};

const health = (): string => {
  try {
    const [success, charge_full] = GLib.file_get_contents(
      "/sys/class/power_supply/BAT0/charge_full",
    );
    if (!success || !charge_full) {
      throw new Error(
        "Failed to read /sys/class/ or the file content is null.",
      );
    }
    const [success_chagre_full_design, charge_full_design] =
      GLib.file_get_contents("/sys/class/power_supply/BAT0/charge_full_design");
    if (!success_chagre_full_design || !charge_full_design) {
      throw new Error(
        "Failed to read /sys/class/ or the file content is null.",
      );
    }
    const chargefullnow = parseInt(
      new TextDecoder("utf-8").decode(charge_full),
    );
    const chargefulldesign = parseInt(
      new TextDecoder("utf-8").decode(charge_full_design),
    );
    const percents = Math.round((chargefullnow * 100) / chargefulldesign);
    return percents.toString() + " %";
  } catch (error) {
    console.error("error get battery health");
    return "";
  }
};

const voltage = (): string => {
  try {
    const [success, voltage] = GLib.file_get_contents(
      "/sys/class/power_supply/BAT0/voltage_now",
    );
    if (!success || !voltage) {
      throw new Error(
        "Failed to read /sys/class/ or the file content is null.",
      );
    }
    const voltage_now = parseInt(new TextDecoder("utf-8").decode(voltage));
    const voltage_string = (voltage_now / 1000).toString() + " V";
    return voltage_string;
  } catch (error) {
    console.error("error get battery voltage");
    return "";
  }
};

export { cycles_count, health, voltage };