local skynet = require "skynet"
local cjson = require "cjson"
local logger = require "logger"

local trace = logger.trace
local cjson_decode = cjson.decode
local cjson_encode = cjson.encode

local Sproto = {}
Sproto.encode = function (name, args, session)
    local list = {
        type = name,
        session = session,
        content = args or {}
    }
    local ret = cjson_encode(list)
    trace("======= encode =======:%s", ret)
    return ret
end

Sproto.decode = function(msg, sz)
    local str = nil
    if(sz) then
        str = skynet.tostring(msg, sz)
        -- skynet.trash(msg,sz)
    else
        str = msg
    end    
    trace("======= decode =======:%s", str)
    local ret = cjson_decode(str)

    local list = {}
    local function fun(args)
        if args then
            list.type = ret.type.."_rsp"
            list.session = ret.session
            list.content = args
        end
        local temp =  cjson_encode(list)
        trace("c2s args pace:%s", temp)
        return temp
    end
    -- if ret.session then
        return "REQUEST", ret.type, ret.content, fun
    -- else
    --     return "REQUEST", ret.type, ret.content, nil
    -- end
end

return Sproto