added handling for no result and no second list images, added notification

background.js

 'use strict';
 var initial = 0;
 var skus = [];
+var noImages = "";
 
 chrome.declarativeContent.onPageChanged.removeRules(undefined, function() {
     chrome.declarativeContent.onPageChanged.addRules([{
@@ -18,16 +19,23 @@ chrome.extension.onMessage.addListener(function(request,sender,sendResponse){
     console.log(skus);
   } else if(request.nothing == "true") {
     console.log("Message : nothing ");
+    noImages += (request.currentSku + ": no duplicate files\n");
     initial++;
   } else if(request.noImage == "true") {
     console.log("Message : noImages"); 
+    noImages += (request.currentSku + ": no results/ no valid images\n");
     initial += 2;
   }
   console.log("Current index : ", initial);
+  console.log("Current noImages : " , noImages);
 });
 
 chrome.downloads.onDeterminingFilename.addListener(function(item, suggest) {
   var new_filename = skus[initial] + ".zip"; 
   suggest({filename: new_filename});
   initial++;
+  if(skus.length-1 == initial) {
+    console.log("Last file was downloaded");
+    alert(noImages);
+  }
 });

contentScript.js

 var link = document.location.href;
 var logined = false;
-var a = [];
-var index = 0;
-var reducedLength;
+
 //If at login site, fill in login infos
 if (link.match(/login/g)){
     window.onload = function() {
@@ -19,24 +17,20 @@ if (link.match(/login/g)){
     });
 //If at asset page, automate scrollDown and fliter process
 } else if (link.match(/asset\?/g)) {
+    var a = [];
+    var index = 0;
+    var noImage = false;
     //Get back the current sku's index from idArray
     chrome.storage.local.get('idArray', function (items) {
         a = items.idArray.split(',');
         var sku = document.location.href.match(/[0-9]{6}/g).toString();
         index = a.indexOf(sku);
-        reducedLength = a.length;
     });
-    console.log("Array : " ,a);
+
     window.onload = function() {
         var currentSku = document.location.href.match(/w=.*&/g);
         currentSku = currentSku.toString().replace(/(w=|&)/g,"");
         var el = document.querySelector(".jsx-334935779 .asset-list");
-        if(el.innerText.match("No Results")) {
-            console.log("Nothing to Download!! , index: " , index ," " , a);
-            window.open("https://digitallibrary-external.fastretailing.com/asset?t=datacategory%2Fasset&w="+ a[index+2] + "&r=north");
-            chrome.runtime.sendMessage({noImage : "true"});
-            return;
-        }
         var count = 0;
         //Scroll down every 4 second, if 3 times no scroll change, download images
         var scroll = setInterval(function() {
@@ -77,9 +71,13 @@ if (link.match(/login/g)){
                 });
                 downloadlist = document.querySelectorAll(".panel-inner .is-checked");
                 if(downloadlist.length == 0) {
+                    noImage = true;
+                }
+                if(noImage) {
                     console.log("Nothing to Download!! , index: " , index ," " , a);
-                    window.open("https://digitallibrary-external.fastretailing.com/asset?t=datacategory%2Fasset&w="+ a[index+2] + "&r=north");
-                    chrome.runtime.sendMessage({noImage : "true"});
+                    if(index+2 != a.length)
+                        window.open("https://digitallibrary-external.fastretailing.com/asset?t=datacategory%2Fasset&w="+ a[index+2] + "&r=north");
+                    chrome.runtime.sendMessage({noImage : "true", currentSku : currentSku});
                     return;
                 }
                 // To prevent file loss for duplicate images name in zip file, will download twice for one sku
@@ -104,16 +102,14 @@ if (link.match(/login/g)){
                 console.log("Second List : ", secondList);
                 if(secondList.length == 0) {
                     console.log("Second List has nothing");
-                    chrome.runtime.sendMessage({nothing : "true"});
-                    reducedLength--;
-                    console.log("Reduced length : " , reducedLength);
+                    chrome.runtime.sendMessage({nothing : "true", currentSku : currentSku});
                 }
                 secondList.forEach(function(a) {
                     a.click();
                     });
                     document.querySelector("#assets_btn_download_asset").click();
                     setTimeout(function(){
-                        if(index+2 != reducedLength)
+                        if(index+2 != a.length)
                         window.open("https://digitallibrary-external.fastretailing.com/asset?t=datacategory%2Fasset&w="+ a[index+2] + "&r=north");
                     },5000);
                 },5000);