local api = require "luci.model.cbi.passwall.api.api"
local appname = api.appname
local sys = api.sys
local net = require "luci.model.network".init()
local datatypes = api.datatypes

local nodes_table = {}
for k, e in ipairs(api.get_valid_nodes()) do
    if e.node_type == "normal" then
        nodes_table[#nodes_table + 1] = {
            id = e[".name"],
            obj = e,
            remarks = e["remark"]
        }
    end
end

m = Map(appname)

-- [[ Haproxy Settings ]]--
s = m:section(TypedSection, "global_haproxy")
s.anonymous = true

s:append(Template(appname .. "/haproxy/status"))

---- Balancing Enable
o = s:option(Flag, "balancing_enable", translate("Enable Load Balancing"))
o.rmempty = false
o.default = false

---- Console Username
o = s:option(Value, "console_user", translate("Console Username"))
o.default = ""
o:depends("balancing_enable", true)

---- Console Password
o = s:option(Value, "console_password", translate("Console Password"))
o.password = true
o.default = ""
o:depends("balancing_enable", true)

---- Console Port
o = s:option(Value, "console_port", translate("Console Port"), translate(
                 "In the browser input routing IP plus port access, such as:192.168.1.1:1188"))
o.default = "1188"
o:depends("balancing_enable", true)

-- [[ Balancing Settings ]]--
s = m:section(TypedSection, "haproxy_config", "",
              "<font color='red'>" .. 
              translate("Add a node, Export Of Multi WAN Only support Multi Wan. Load specific gravity range 1-256. Multiple primary servers can be load balanced, standby will only be enabled when the primary server is offline! Multiple groups can be set, Haproxy port same one for each group.") ..
              "\n" .. translate("Note that the node configuration parameters for load balancing must be consistent, otherwise problems can arise!") ..
              "</font>")
s.template = "cbi/tblsection"
s.sortable = true
s.anonymous = true
s.addremove = true

s.create = function(e, t)
    TypedSection.create(e, api.gen_uuid())
end

s.remove = function(self, section)
    for k, v in pairs(self.children) do
        v.rmempty = true
        v.validate = nil
    end
    TypedSection.remove(self, section)
end

---- Enable
o = s:option(Flag, "enabled", translate("Enable"))
o.default = 1
o.rmempty = false

---- Node Address
o = s:option(Value, "lbss", translate("Node Address"))
for k, v in pairs(nodes_table) do o:value(v.id, v.remarks) end
o.rmempty = false
o.validate = function(self, value)
    if not value then return nil end
    local t = m:get(value) or nil
    if t and t[".type"] == "nodes" then
        return value
    end
    if datatypes.hostport(value) or datatypes.ip4addrport(value) then
        return value
    end
    if api.is_ipv6addrport(value) then
        return value
    end
    return nil, value
end

---- Haproxy Port
o = s:option(Value, "haproxy_port", translate("Haproxy Port"))
o.datatype = "port"
o.default = 1181
o.rmempty = false

---- Node Weight
o = s:option(Value, "lbweight", translate("Node Weight"))
o.datatype = "uinteger"
o.default = 5
o.rmempty = false

---- Export
o = s:option(ListValue, "export", translate("Export Of Multi WAN"))
o:value(0, translate("Auto"))
local wa = require "luci.tools.webadmin"
wa.cbi_add_networks(o)
o.default = 0
o.rmempty = false

---- Mode
o = s:option(ListValue, "backup", translate("Mode"))
o:value(0, translate("Primary"))
o:value(1, translate("Standby"))
o.rmempty = false

return m