#!/usr/bin/lua
-- Copyright (C) 2022 ImmortalWrt.org

local util = require "luci.util"
local jsonc = require "luci.jsonc"

local eth_info = {}
local ifname, stat

for ifname, stat in pairs(util.ubus("network.device", "status")) do
	while true do
		if (ifname:match("^(br-.+)$")) == ifname then
			break
		else
			local status, speed, duplex

			if(stat.speed ~= nil) then
				status = stat.carrier and 1 or 0

				if stat.speed:sub(1, 1) == "-" then
					speed = " - "
				else
					speed = stat.speed:sub(1, -2) .. "Mb/s"
				end

				if stat.carrier and stat.speed:sub(-1) == "F" then
					duplex = 1
				else
					duplex = 0
				end

				eth_info[#eth_info+1] = { name = ifname, status = status,
							speed = speed, duplex = duplex }
			end
			break
		end
	end
end

table.sort(eth_info,
	function(a, b)
		return a.name < b.name
	end)

print(jsonc.stringify(eth_info))