#!/bin/sh
. libsb

status() {
	nmcli --terse device status | awk -v device="$1" -F: '$1 == device { print $3 }'
}

wireless() {
	if grep -vxq '0x\(1\|9\)003' "$info/flags"; then
		icon="󰀞"
	else
		case "$(status "$device")" in
			connected)
				percent=$(awk -v interface="${device}:" '$1==interface { gsub(/[^0-9]/,"",$3); print $3 }' /proc/net/wireless)
				# shellcheck disable=SC2194
				case 1 in
					$((percent >= 80))) icon="󰤨" ;;
					$((percent >= 60))) icon="󰤥" ;;
					$((percent >= 40))) icon="󰤢" ;;
					$((percent >= 20))) icon="󰤟" ;;
					$((percent >= 0))) icon="󰤯" ;;
				esac
				;;
			disconnected) return ;;
			*) icon="󰤫" ;;
		esac

		wireless_status="${wireless_status:-}${icon} ${name} "
	fi
}

ethernet() {
	case "$(status "$device")" in
		connected) icon="󰱓" ;;
		unavailable | disconnected) return ;;
		*) icon="󰛵" ;;
	esac

	ethernet_status="${ethernet_status:-}${icon} "
}

wireguard() {
	wireguard_status="${wireguard_status:-}󰖂 ${name} "
}

vpn() {
	vpn_status="${vpn_status:-}󰖂 ${name} "
}

fallback() {
	:
}

output() {
	printf "%b" "${wireless_status}${ethernet_status}${wireguard_status}${vpn_status}" | sed 's/ $//'
}

IFS="
"
for x in $(nmcli --terse connection show --active); do
	name="$(echo "$x" | cut -d: -f1)"
	type="$(echo "$x" | cut -d: -f3)"
	device="$(echo "$x" | cut -d: -f4)"
	info="/sys/class/net/${device}"

	case "$type" in
		*wireless) wireless ;;
		*ethernet) ethernet ;;
		wireguard | vpn) $type ;;
		*) fallback ;;
	esac

	unset name type device info icon
done

output