import { LCD } from '@sek1ro/i2c-lcd'
import si from 'systeminformation'

const lcd = new LCD(1, 0x27)
await lcd.open()

async function showSystemStats() {
  const [cpu, mem, temp] = await Promise.all([
    si.currentLoad(),
    si.mem(),
    si.cpuTemperature(),
  ]);

  const cpuLoad = cpu.currentLoad.toFixed(1);
  const totalMem = (mem.total / 1024 ** 2).toFixed(0);
  const usedMem = ((mem.total - mem.available) / 1024 ** 2).toFixed(0);
  const tempC = temp.main?.toFixed(1) ?? 'N/A';

  await lcd.send(LCD.ClearDisplay())

  const hours = new Date().getHours()
  if (hours >= 23 || hours <= 7) {
    lcd.backlight = false
  } else {
    lcd.backlight = true
  }

  await lcd.jump(0, 0);
  await lcd.sendString(`${cpuLoad}%`);

  await lcd.jump(8, 0);
  await lcd.sendString(`${tempC}C`)

  await lcd.jump(0, 1);
  await lcd.sendString(`${usedMem}/${totalMem} MB`);
}

await showSystemStats()
setInterval(showSystemStats, 1000)