-- retrieve the content of a URL
local http = require "resty.http"
local pl = require "pl.pretty"
--local Upt = require "lib/upt"
local httpc = http:new()

local uri = "/music-room/17c832cb-bc6b-41f7-96cd-190b7fe4a3d7.jpeg"
local secret = "0D32E581A445404FA4C306709724FA07"
local duration = "3600"
local etime = os.time() + duration
local sign = ngx.md5(secret .. '&' .. etime .. '&' .. uri)
--ngx.log(ngx.INFO, 'sign...' .. sign .. ' etime..' .. etime)

ngx.say('sign...' .. sign .. ' etime..' .. etime)

local _upt = string.sub(sign, 13, 13 + 7) .. etime

--local _upt = Upt.upt()

ngx.say("UPT -> ", _upt)

local remote_url = "https://upyun.alchemy-studio.cn/music-room/17c832cb-bc6b-41f7-96cd-190b7fe4a3d7.jpeg?_upt=" .. _upt

local no_exception, resp, resp_err = pcall(httpc.request_uri, httpc, remote_url,
        {
            ssl_verify = false, -- 设置参数 ssl_verify 为false 不校验ssl证书
            method = "GET",
        })

--TODO: send resp.body to Flask API (ai-api) -> convert_mxml_to_xml() -> XML string
--local xml = ai-api.convert_mxml_to_xml(resp.body)
--ngx.say(xml)

--ngx.say("RESP -> ", pl.write(resp))
------ save the content to a file
--local f = assert(io.open('test.jpg', 'wb')) -- open in "binary" mode
--f:write(resp.body)
----
--f:close()