local cjson = require("cjson")
local xpcall = xpcall

-- 设置 处理稀疏数组
-- https://www.kyne.com.au/~mark/software/lua-cjson-manual.html#encode_sparse_array
cjson.encode_sparse_array(true, 1, 1)

-- https://github.com/cloudwu/lua-cjson/pull/8
cjson.encode_empty_table_as_array("on")

-- https://github.com/cloudwu/lua-cjson/pull/10
cjson.encode_number_precision(16)

local json = {}

function json.encode(var)
    local function _logExce(err)
        print("json encode", err)
    end

    local status, result = xpcall(cjson.encode, _logExce, var)
    if status then
        return result
    end
end

function json.decode(text)
    if not text then
        return
    end

    local function _logExce(err)
        print("json decode", text, err)
    end

    local status, result = xpcall(cjson.decode, _logExce, text)
    if status then
        return result
    end
end

return json