-- Copyright 2014 Aedan Renner <chipdankly@gmail.com>
-- Copyright 2018 Florian Eckert <fe@dev.tdt.de>
-- Licensed to the public under the GNU General Public License v2.

local dsp = require "luci.dispatcher"

local m, mwan_interface, enabled, initial_state, family, track_ip
local track_method, reliability, count, size, max_ttl
local check_quality, failure_latency, failure_loss, recovery_latency
local recovery_loss, timeout, interval, failure
local keep_failure, recovery, down, up, flush, metric
local httping_ssl

arg[1] = arg[1] or ""

m = Map("mwan3", translatef("MWAN Interface Configuration - %s", arg[1]))
m.redirect = dsp.build_url("admin", "network", "mwan", "interface")

mwan_interface = m:section(NamedSection, arg[1], "interface", "")
mwan_interface.addremove = false
mwan_interface.dynamic = false

enabled = mwan_interface:option(Flag, "enabled", translate("Enabled"))
enabled.default = false

initial_state = mwan_interface:option(ListValue, "initial_state", translate("Initial state"),
	translate("Expect interface state on up event"))
initial_state.default = "online"
initial_state:value("online", translate("Online"))
initial_state:value("offline", translate("Offline"))

family = mwan_interface:option(ListValue, "family", translate("Internet Protocol"))
family.default = "ipv4"
family:value("ipv4", translate("IPv4"))
family:value("ipv6", translate("IPv6"))

track_ip = mwan_interface:option(DynamicList, "track_ip", translate("Tracking hostname or IP address"),
	translate("This hostname or IP address will be pinged to determine if the link is up or down. Leave blank to assume interface is always online"))
track_ip.datatype = "host"

track_method = mwan_interface:option(ListValue, "track_method", translate("Tracking method"))
track_method.default = "ping"
track_method:value("ping")
if os.execute("which nping 1>/dev/null") == 0 then
	track_method:value("nping-tcp")
	track_method:value("nping-udp")
	track_method:value("nping-icmp")
	track_method:value("nping-arp")
end

if os.execute("which arping 1>/dev/null") == 0 then
	track_method:value("arping")
end

if os.execute("which httping 1>/dev/null") == 0 then
	track_method:value("httping")
end

httping_ssl = mwan_interface:option(Flag, "httping_ssl", translate("Enable ssl tracking"),
	translate("Enables https tracking on ssl port 443"))
httping_ssl:depends("track_method", "httping")
httping_ssl.rmempty = false
httping_ssl.default = httping_ssl.enabled

reliability = mwan_interface:option(Value, "reliability", translate("Tracking reliability"),
	translate("Acceptable values: 1-100. This many Tracking IP addresses must respond for the link to be deemed up"))
reliability.datatype = "range(1, 100)"
reliability.default = "1"

count = mwan_interface:option(ListValue, "count", translate("Ping count"))
count.default = "1"
count:value("1")
count:value("2")
count:value("3")
count:value("4")
count:value("5")

size = mwan_interface:option(Value, "size", translate("Ping size"))
size.default = "56"
size:depends("track_method", "ping")
size:value("8")
size:value("24")
size:value("56")
size:value("120")
size:value("248")
size:value("504")
size:value("1016")
size:value("1472")
size:value("2040")
size.datatype = "range(1, 65507)"

max_ttl = mwan_interface:option(Value, "max_ttl", translate("Max TTL"))
max_ttl.default = "60"
max_ttl:depends("track_method", "ping")
max_ttl:value("10")
max_ttl:value("20")
max_ttl:value("30")
max_ttl:value("40")
max_ttl:value("50")
max_ttl:value("60")
max_ttl:value("70")
max_ttl.datatype = "range(1, 255)"

check_quality = mwan_interface:option(Flag, "check_quality", translate("Check link quality"))
check_quality:depends("track_method", "ping")
check_quality.default = false

failure_latency = mwan_interface:option(Value, "failure_latency", translate("Max packet latency [ms]"))
failure_latency:depends("check_quality", 1)
failure_latency.default = "1000"
failure_latency:value("25")
failure_latency:value("50")
failure_latency:value("75")
failure_latency:value("100")
failure_latency:value("150")
failure_latency:value("200")
failure_latency:value("250")
failure_latency:value("300")

failure_loss = mwan_interface:option(Value, "failure_loss", translate("Max packet loss [%]"))
failure_loss:depends("check_quality", 1)
failure_loss.default = "20"
failure_loss:value("2")
failure_loss:value("5")
failure_loss:value("10")
failure_loss:value("20")
failure_loss:value("25")

recovery_latency = mwan_interface:option(Value, "recovery_latency", translate("Min packet latency [ms]"))
recovery_latency:depends("check_quality", 1)
recovery_latency.default = "500"
recovery_latency:value("25")
recovery_latency:value("50")
recovery_latency:value("75")
recovery_latency:value("100")
recovery_latency:value("150")
recovery_latency:value("200")
recovery_latency:value("250")
recovery_latency:value("300")

recovery_loss = mwan_interface:option(Value, "recovery_loss", translate("Min packet loss [%]"))
recovery_loss:depends("check_quality", 1)
recovery_loss.default = "5"
recovery_loss:value("2")
recovery_loss:value("5")
recovery_loss:value("10")
recovery_loss:value("20")
recovery_loss:value("25")

timeout = mwan_interface:option(ListValue, "timeout", translate("Ping timeout"))
timeout.default = "2"
timeout:value("1", translatef("%d second", 1))
timeout:value("2", translatef("%d seconds", 2))
timeout:value("3", translatef("%d seconds", 3))
timeout:value("4", translatef("%d seconds", 4))
timeout:value("5", translatef("%d seconds", 5))
timeout:value("6", translatef("%d seconds", 6))
timeout:value("7", translatef("%d seconds", 7))
timeout:value("8", translatef("%d seconds", 8))
timeout:value("9", translatef("%d seconds", 9))
timeout:value("10", translatef("%d seconds", 10))

interval = mwan_interface:option(ListValue, "interval", translate("Ping interval"))
interval.default = "5"
interval:value("1", translatef("%d second", 1))
interval:value("3", translatef("%d seconds", 3))
interval:value("5", translatef("%d seconds", 5))
interval:value("10", translatef("%d seconds", 10))
interval:value("20", translatef("%d seconds", 20))
interval:value("30", translatef("%d seconds", 30))
interval:value("60", translatef("%d minute", 1))
interval:value("300", translatef("%d minutes", 5))
interval:value("600", translatef("%d minutes", 10))
interval:value("900", translatef("%d minutes", 15))
interval:value("1800", translatef("%d minutes", 30))
interval:value("3600", translatef("%d hour", 1))

failure = mwan_interface:option(Value, "failure_interval", translate("Failure interval"),
	translate("Ping interval during failure detection"))
failure.default = "5"
failure:value("1", translatef("%d second", 1))
failure:value("3", translatef("%d seconds", 3))
failure:value("5", translatef("%d seconds", 5))
failure:value("10", translatef("%d seconds", 10))
failure:value("20", translatef("%d seconds", 20))
failure:value("30", translatef("%d seconds", 30))
failure:value("60", translatef("%d minute", 1))
failure:value("300", translatef("%d minutes", 5))
failure:value("600", translatef("%d minutes", 10))
failure:value("900", translatef("%d minutes", 15))
failure:value("1800", translatef("%d minutes", 30))
failure:value("3600", translatef("%d hour", 1))

keep_failure = mwan_interface:option(Flag, "keep_failure_interval", translate("Keep failure interval"),
	translate("Keep ping failure interval during failure state"))
keep_failure.default = keep_failure.disabled

recovery = mwan_interface:option(Value, "recovery_interval", translate("Recovery interval"),
	translate("Ping interval during failure recovering"))
recovery.default = "5"
recovery:value("1", translatef("%d second", 1))
recovery:value("3", translatef("%d seconds", 3))
recovery:value("5", translatef("%d seconds", 5))
recovery:value("10", translatef("%d seconds", 10))
recovery:value("20", translatef("%d seconds", 20))
recovery:value("30", translatef("%d seconds", 30))
recovery:value("60", translatef("%d minute", 1))
recovery:value("300", translatef("%d minutes", 5))
recovery:value("600", translatef("%d minutes", 10))
recovery:value("900", translatef("%d minutes", 15))
recovery:value("1800", translatef("%d minutes", 30))
recovery:value("3600", translatef("%d hour", 1))

down = mwan_interface:option(ListValue, "down", translate("Interface down"),
	translate("Interface will be deemed down after this many failed ping tests"))
down.default = "3"
down:value("1")
down:value("2")
down:value("3")
down:value("4")
down:value("5")
down:value("6")
down:value("7")
down:value("8")
down:value("9")
down:value("10")

up = mwan_interface:option(ListValue, "up", translate("Interface up"),
	translate("Downed interface will be deemed up after this many successful ping tests"))
up.default = "3"
up:value("1")
up:value("2")
up:value("3")
up:value("4")
up:value("5")
up:value("6")
up:value("7")
up:value("8")
up:value("9")
up:value("10")

flush = mwan_interface:option(StaticList, "flush_conntrack", translate("Flush conntrack table"),
	translate("Flush global firewall conntrack table on interface events"))
flush:value("ifup", translate("ifup (netifd)"))
flush:value("ifdown", translate("ifdown (netifd)"))
flush:value("connected", translate("connected (mwan3)"))
flush:value("disconnected", translate("disconnected (mwan3)"))

metric = mwan_interface:option(DummyValue, "metric", translate("Metric"),
	translate("This displays the metric assigned to this interface in /etc/config/network"))
metric.rawhtml = true
function metric.cfgvalue(self, s)
	local uci = require "luci.model.uci".cursor(nil, "/var/state")
	local metric = uci:get("network", arg[1], "metric")
	if metric then
		return metric
	else
		return "&#8212;"
	end
end

return m