lua_shared_dict my_cache 128m;

local uri_args = ngx.req.get_uri_args()
local productId = uri_args["productId"]
local shopId = uri_args["shopId"]

local cache_ngx = ngx.shared.my_cache

local productCacheKey = "product_info_"..productId
local shopCacheKey = "shop_info_"..shopId

local productCache = cache_ngx:get(productCacheKey)
local shopCache = cache_ngx:get(shopCacheKey)

if productCache == "" or productCache == nil then
    local http = require("resty.http")
    local httpc = http.new()

    local resp, err = httpc:request_uri("http://192.168.31.179:8080",{
          method = "GET",
          path = "/getProductInfo?productId="..productId
    })

    productCache = resp.body
    cache_ngx:set(productCacheKey, productCache, 10 * 60)
end

if shopCache == "" or shopCache == nil then
    local http = require("resty.http")
    local httpc = http.new()

    local resp, err = httpc:request_uri("http://192.168.31.179:8080",{
          method = "GET",
          path = "/getShopInfo?shopId="..shopId
    })

    shopCache = resp.body
    cache_ngx:set(shopCacheKey, shopCache, 10 * 60)
end

local cjson = require("cjson")
local productCacheJSON = cjson.decode(productCache)
local shopCacheJSON = cjson.decode(shopCache)

local context = {
    productId = productCacheJSON.id,
    productName = productCacheJSON.name,
    productPrice = productCacheJSON.price,
    productPictureList = productCacheJSON.pictureList,
    productSpecification = productCacheJSON.specification,
    productService = productCacheJSON.service,
    productColor = productCacheJSON.color,
    productSize = productCacheJSON.size,
    shopId = shopCacheJSON.id,
    shopName = shopCacheJSON.name,
    shopLevel = shopCacheJSON.level,
    shopGoodCommentRate = shopCacheJSON.goodCommentRate
}

local template = require("resty.template")
template.render("product.html", context)