local utils = {}
local sys = require("sys")
function utils.bool_to_number(value)
    return value and 1 or 0
end

function utils.is_empty(str)
    return str == nil or str == ""
end

function utils.clear_table(table)
    for i = 0, #table do
        table[i] = nil
    end
end
function utils.table_len(t)
    local leng=0
    if type(t) ~= "table" then
        return leng
    end
    for k, v in pairs(t) do
      leng=leng+1
    end
    return leng;
end
function utils.clear_fskv()
    fskv.init()
    fskv.clear()
end
-- 用于生成 http 请求的 id
local http_count = 0

--- 对 LuatOS-Air http.request 的封装
-- @param timeout (number) 超时时间
-- @param method (string) 请求方法
-- @param url (string) 请求地址
-- @param headers (table) 请求头
-- @param body (string) 请求体
-- @return (number, table, string) 状态码, 响应头, 响应体
function utils.fetch(timeout, method, url, headers, body)

    local code,headers,body = http.request(method, url, headers,body).wait()
    return code, headers, body
    -- timeout = timeout or 1000 * 30

    -- http_count = http_count + 1
    -- local id = "http_c" .. http_count .. "_r" .. math.random(1000, 9999)

    -- local function callback(res_result, res_prompt, res_headers, res_body)
    --     sys.publish(id, {res_result, res_prompt, res_headers, res_body})
    -- end

    -- log.info("utils.fetch", "开始请求", "id:", id)
    -- http.request(method, url, nil, headers, body, timeout, callback)
    -- local result, data = sys.waitUntil(id, 1000 * 60)
    -- log.info("utils.fetch", "请求结束", "id:", id)

    -- if result == false then
    --     log.warn("utils.fetch", "请求超时", "id:", id)
    --     return 501, {}, "utils.fetch 请求超时"
    -- end

    -- return tonumber(data[2]) or -99, data[3] or {}, data[4] or ""
end
return utils