#!/usr/bin/env bash

# 26.03.06 :: klevstul


displayResources() {
    operation=$1

    if [[ "${operation}" == "memory" ]]; then
        echo /home/poq/.config/nwg-panel/icons/memory-solid-full.svg
        free -h | awk '/^Mem:/ {printf "%d/%d gb (%.1f%%)", $3, $2, $3*100/$2}'
    elif [[ "${operation}" == "cpu" ]]; then
        echo /home/poq/.config/nwg-panel/icons/microchip-solid-full.svg
        (grep 'cpu ' /proc/stat; sleep 0.1; grep 'cpu ' /proc/stat) | awk -v RS="" '{printf "%.1f%%", ($13-$2+$15-$4)*100/($13-$2+$15-$4+$16-$5)"%"}'
    elif [[ "${operation}" == "topmem" ]]; then
        # the process that consumes the most memory
        echo /home/poq/.config/nwg-panel/icons/noun-ram-8252148.svg
        ps -eo pid,cmd,%mem --sort=-%mem | head -n 2 | awk 'NR==2 {printf "%s: %s (%s%)", $1, $2, $4}'
    elif [[ "${operation}" == "topcpu" ]]; then
        # the process that consumes the most cpu
        ps -eo pid,comm,%cpu --sort=-%cpu | head -n 2 | awk 'NR==2 {printf "%s: %s (%s%)", $1, $2, $3}'
    else
        echo ""
    fi
}

displayResources $1