#!/bin/sh
# shellcheck disable=2046
###############################################################################
# QCA NSS Driver Debug Script
# version 20240228
#
# Requires: NSS Driver 12.1+
# Usage: /lib/debug/qca-nss-drv (no arguments)
# Description: Display non-zero NSS statistics with color highlighting
#             (requires a terminal that supports ANSI escape codes)
#
# Maintainer: Qosmio (https://forum.openwrt.org/u/qosmio)
# NSS Packages Repository: https://github.com/qosmio/nss-packages (branch: NSS-12.4-K6.1)
#

current=$(sysctl -q -n dev.nss.stats.non_zero_stats)
sysctl -q dev.nss.stats.non_zero_stats=1

awk '
function color(c, s) {
    if ($3 > 0) {
        if ($4 == "error")           c = 1
        else if ($4 == "special")    c = 6
        else if ($4 ~ /drop|common/) c = 3
        else if ($4 == "port")       c = 0
        else if ($4 == "exception")  c = 5
        printf("\033[%d;%d;40m%s\033[0m\n", 1, 30 + c, s)
        next
    }
    print
}
{
    color(0, $0)
}' $(grep -lrE "= [1-9]+" /sys/kernel/debug/qca-nss-drv/stats)

echo ""
echo "________________________________________________________________________________"
echo ""
cat /sys/kernel/debug/qca-nss-drv/stats/cpu_load_ubi
echo "________________________________________________________________________________"

sysctl -q dev.nss.stats.non_zero_stats="$current"