Merge pull request #10 from WBerredo/shuffle-promos

Shuffle promos

package.json

@@ -1,6 +1,6 @@
 {
   "name": "orvil",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "description": "Messenger chatbot for books search and recommendation",
   "main": "processMessage.js",
   "scripts": {

sendPromos.js

@@ -11,18 +11,29 @@ function errorEvent(error) {
   console.warn("error sending fb messages: ", error.response);
 }
 
-exports.handler = (event, context, callback) => {
-  dynamoDB.getSubscribers((error, data) => {
-    if (error) {
-      console.warn('There was an error getting subscribers: ', errro);
-    } else {
-      lomadee.searchBestSellers()
-        .then((response) => {
-          const searchData = response.data;
-
-          // console.log(`Lomadee searched by bestselles`, searchData);
-          const offers = searchData.offers.map(Offer.formatOffer);
+function randomSort() {
+  return 0.5 - Math.random();
+}
 
+exports.handler = (event, context, callback) => {
+  const promoTotalSize = 100;
+  const promoToSendSize = 5;
+
+  lomadee.searchBestSellers(0, promoTotalSize)
+    .then((response) => {
+      const searchData = response.data;
+
+      // console.log(`Lomadee searched by bestsellers`, searchData);
+      const offers = searchData.offers
+        .sort(randomSort)
+        .slice(0, promoToSendSize)
+        .map(Offer.formatOffer)
+        ;
+
+      dynamoDB.getSubscribers((error, data) => {
+        if (error) {
+          console.warn('There was an error getting subscribers: ', error);
+        } else {
           data.Items.forEach((item) => {
             const user = item.attrs;
 
@@ -33,10 +44,11 @@ exports.handler = (event, context, callback) => {
 
             console.log('Recommendations sent to :', user);
           });
-        })
-        .catch(err => console.warn('Was not possible get bestsellers: ', err));
-    }
+        }
 
-    callback(error, data);
-  });
+        callback(error, data);
+      });
+    })
+    .catch(err => console.warn('Was not possible get bestsellers: ', err)
+  );
 };