local api = require "luci.model.cbi.passwall.api.api"
local appname = api.appname
local fs = api.fs
local has_v2ray = api.is_finded("v2ray")
local has_xray = api.is_finded("xray")
local has_fw3 = api.is_finded("fw3")
local has_fw4 = api.is_finded("fw4")

m = Map(appname)

-- [[ Delay Settings ]]--
s = m:section(TypedSection, "global_delay", translate("Delay Settings"))
s.anonymous = true
s.addremove = false

---- Delay Start
o = s:option(Value, "start_delay", translate("Delay Start"),
             translate("Units:seconds"))
o.default = "1"
o.rmempty = true

---- Open and close Daemon
o = s:option(Flag, "start_daemon", translate("Open and close Daemon"))
o.default = 1
o.rmempty = false

--[[
---- Open and close automatically
o = s:option(Flag, "auto_on", translate("Open and close automatically"))
o.default = 0
o.rmempty = false

---- Automatically turn off time
o = s:option(ListValue, "time_off", translate("Automatically turn off time"))
o.default = nil
o:depends("auto_on", true)
o:value(nil, translate("Disable"))
for e = 0, 23 do o:value(e, e .. translate("oclock")) end

---- Automatically turn on time
o = s:option(ListValue, "time_on", translate("Automatically turn on time"))
o.default = nil
o:depends("auto_on", true)
o:value(nil, translate("Disable"))
for e = 0, 23 do o:value(e, e .. translate("oclock")) end

---- Automatically restart time
o = s:option(ListValue, "time_restart", translate("Automatically restart time"))
o.default = nil
o:depends("auto_on", true)
o:value(nil, translate("Disable"))
for e = 0, 23 do o:value(e, e .. translate("oclock")) end
--]]

-- [[ Forwarding Settings ]]--
s = m:section(TypedSection, "global_forwarding",
              translate("Forwarding Settings"))
s.anonymous = true
s.addremove = false

---- TCP No Redir Ports
o = s:option(Value, "tcp_no_redir_ports", translate("TCP No Redir Ports"))
o.default = "disable"
o:value("disable", translate("No patterns are used"))
o:value("1:65535", translate("All"))

---- UDP No Redir Ports
o = s:option(Value, "udp_no_redir_ports", translate("UDP No Redir Ports"),
             "<font color='red'>" .. translate(
                 "Fill in the ports you don't want to be forwarded by the agent, with the highest priority.") ..
                 "</font>")
o.default = "disable"
o:value("disable", translate("No patterns are used"))
o:value("1:65535", translate("All"))

---- TCP Proxy Drop Ports
o = s:option(Value, "tcp_proxy_drop_ports", translate("TCP Proxy Drop Ports"))
o.default = "disable"
o:value("disable", translate("No patterns are used"))

---- UDP Proxy Drop Ports
o = s:option(Value, "udp_proxy_drop_ports", translate("UDP Proxy Drop Ports"))
o.default = "80,443"
o:value("disable", translate("No patterns are used"))
o:value("80,443", translate("QUIC"))

---- TCP Redir Ports
o = s:option(Value, "tcp_redir_ports", translate("TCP Redir Ports"))
o.default = "22,25,53,143,465,587,853,993,995,80,443"
o:value("1:65535", translate("All"))
o:value("22,25,53,143,465,587,853,993,995,80,443", translate("Common Use"))
o:value("80,443", translate("Only Web"))

---- UDP Redir Ports
o = s:option(Value, "udp_redir_ports", translate("UDP Redir Ports"))
o.default = "1:65535"
o:value("1:65535", translate("All"))
o:value("53", "DNS")

---- Use nftables
o = s:option(ListValue, "use_nft", translate("Firewall tools"))
o.default = "0"
if has_fw3 then
    o:value("0", "IPtables")
end
if has_fw4 then
    o:value("1", "NFtables")
end

if (os.execute("lsmod | grep -i REDIRECT >/dev/null") == 0 and os.execute("lsmod | grep -i TPROXY >/dev/null") == 0) or (os.execute("lsmod | grep -i nft_redir >/dev/null") == 0 and os.execute("lsmod | grep -i nft_tproxy >/dev/null") == 0) then
    o = s:option(ListValue, "tcp_proxy_way", translate("TCP Proxy Way"))
    o.default = "tproxy"
    o:value("redirect", "REDIRECT")
    o:value("tproxy", "TPROXY")
    o:depends("ipv6_tproxy", false)

    o = s:option(ListValue, "_tcp_proxy_way", translate("TCP Proxy Way"))
    o.default = "tproxy"
    o:value("tproxy", "TPROXY")
    o:depends("ipv6_tproxy", true)
    o.write = function(self, section, value)
        return self.map:set(section, "tcp_proxy_way", value)
    end

    if os.execute("lsmod | grep -i ip6table_mangle >/dev/null") == 0 or os.execute("lsmod | grep -i nft_tproxy >/dev/null") == 0 then
        ---- IPv6 TProxy
        o = s:option(Flag, "ipv6_tproxy", translate("IPv6 TProxy"),
                    "<font color='red'>" .. translate(
                        "Experimental feature. Make sure that your node supports IPv6.") ..
                        "</font>")
        o.default = 0
        o.rmempty = false
    end
end

o = s:option(Flag, "accept_icmp", translate("Hijacking ICMP (PING)"))
o.default = 0

o = s:option(Flag, "accept_icmpv6", translate("Hijacking ICMPv6 (IPv6 PING)"))
o:depends("ipv6_tproxy", true)
o.default = 0

if has_v2ray or has_xray then
    o = s:option(Flag, "sniffing", translate("Sniffing (V2Ray/Xray)"), translate("When using the V2ray/Xray shunt, must be enabled, otherwise the shunt will invalid."))
    o.default = 1
    o.rmempty = false

    if has_xray then
        route_only = s:option(Flag, "route_only", translate("Sniffing Route Only (Xray)"), translate("When enabled, the server not will resolve the domain name again."))
        route_only.default = 0
        route_only:depends("sniffing", true)

        local domains_excluded = string.format("/usr/share/%s/rules/domains_excluded", appname)
        o = s:option(TextValue, "no_sniffing_hosts", translate("No Sniffing Lists"), translate("Hosts added into No Sniffing Lists will not resolve again on server (Xray only)."))
        o.rows = 15
        o.wrap = "off"
        o.cfgvalue = function(self, section) return fs.readfile(domains_excluded) or "" end
        o.write = function(self, section, value) fs.writefile(domains_excluded, value:gsub("\r\n", "\n")) end
        o.remove = function(self, section, value)
            if route_only:formvalue(section) == "0" then
                fs.writefile(domains_excluded, "")
            end
        end
        o:depends({sniffing = true, route_only = false})

        o = s:option(Value, "buffer_size", translate("Buffer Size (Xray)"), translate("Buffer size for every connection (kB)"))
        o.rmempty = true
        o.datatype = "uinteger"
    end
end
return m
