callisto/modules/system_info.py

import os
import psutil
from modules.base_module import BaseModule

class SystemInfoModule(BaseModule):

    def get_display_text(self):
        lines = []

        # CPU temperature
        try:
            with open("/sys/class/thermal/thermal_zone0/temp", "r") as f:
                temp_str = f.read()
            cpu_temp = round(int(temp_str) / 1000.0, 1)
            temp_str = f"{cpu_temp:>4}°C"
        except FileNotFoundError:
            temp_str = " N/A°C"

        # CPU usage
        cpu_usage = psutil.cpu_percent(interval=0.2)
        cpu_str = f"{cpu_usage:>5.1f}%"

        # Memory usage
        mem = psutil.virtual_memory()
        mem_used = round(mem.used / (1024 * 1024))
        mem_total = round(mem.total / (1024 * 1024))
        mem_str = f"{mem_used}/{mem_total}MB"

        # Compose lines for better alignment
        lines.append(f"Temp:{temp_str}  CPU:{cpu_str}")
        lines.append(f"Mem: {mem_str}%")

        return "\n".join(lines)