#!/bin/bash

source ./so-variables
source ../salt/common/tools/sbin/so-common
source ../salt/common/tools/sbin/so-image-common

# Helper functions

filter_unused_nics() {

	if [[ $MNIC ]]; then local grep_string="$MNIC\|bond0"; else local grep_string="bond0"; fi

	# If we call this function and NICs have already been assigned to the bond interface then add them to the grep search string
	if [[ $BNICS ]]; then
		grep_string="$grep_string"
		for BONDNIC in "${BNICS[@]}"; do
			grep_string="$grep_string\|$BONDNIC"
		done
	fi

	# Finally, set filtered_nics to any NICs we aren't using (and ignore interfaces that aren't of use)
	filtered_nics=$(ip link | awk -F: '$0 !~ "lo|vir|veth|br|docker|wl|^[^0-9]"{print $2}' | grep -vwe "$grep_string"  | sed 's/ //g')
	readarray -t filtered_nics <<< "$filtered_nics"
	
	nic_list=()
	for nic in "${filtered_nics[@]}"; do
		case $(cat "/sys/class/net/${nic}/carrier" 2>/dev/null) in
			1)
				nic_list+=("$nic" "Link UP " "OFF")
				;;
			0)
				nic_list+=("$nic" "Link DOWN " "OFF")
				;;
			*)
				nic_list+=("$nic" "Link UNKNOWN " "OFF")
				;;
		esac
	done

	export nic_list
}

calculate_useable_cores() {

	# Calculate reasonable core usage
	local cores_for_zeek=$(( (num_cpu_cores/2) - 1 ))
	local lb_procs_round
	lb_procs_round=$(printf "%.0f\n" $cores_for_zeek)

	if [ "$lb_procs_round" -lt 1 ]; then lb_procs=1; else lb_procs=$lb_procs_round; fi
    export lb_procs
}