From 6085208e82f1fed742e2231afc376e4bc2d4d267 Mon Sep 17 00:00:00 2001
From: Aditya Sankhla <adityasa@iitbhilai.ac.in>
Date: Wed, 10 Apr 2024 01:03:30 +0530
Subject: [PATCH] APU for use in food recommendation

---
 controllers/userOrderControl.js | 60 ++++++++++++---------------------
 1 file changed, 21 insertions(+), 39 deletions(-)

diff --git a/controllers/userOrderControl.js b/controllers/userOrderControl.js
index 51aaa69..6328ae4 100644
--- a/controllers/userOrderControl.js
+++ b/controllers/userOrderControl.js
@@ -100,29 +100,17 @@ exports.getRecommendation = async (req, res, next) => {
     const userID = req.params.user_id;
     let orders = await Order.find({ user_id: userID })
       .sort({ createdAt: -1 })
-      .limit(2); // Get the last 5 orders
-    let recommendedItemsSet = new Set();
+      .limit(2);
+    // Get the last 2 orders
 
+    let recommendedItemsSet = new Set();
     // Fetch recommendations for default items
     const defaultItems = ["Samosa", "Pav Bhaji"];
-    for (let itemName of defaultItems) {
-      let foodItemTitleCase = toTitleCase(itemName);
-      try {
-        const response = await axios.get(
-          `https://food-recommendation-yqpc.onrender.com/recommend/${foodItemTitleCase}`
-        );
-        console.log(response);
-        const recommendedRecipes = response.data.recommended_recipes;
-
-        // Check if recommended items exist in the database
-        for (let recipe of recommendedRecipes) {
-          const dbItem = await MenuItem.findOne({ name: recipe });
-          if (dbItem) {
-            recommendedItemsSet.add(JSON.stringify(dbItem)); 
-          }
-        }
-      } catch (e) {
-        console.log(e);
+    const recommendedRecipes = await fetchRecommendations(defaultItems);
+    for (let recipe of recommendedRecipes) {
+      const dbItem = await MenuItem.findOne({ name: recipe });
+      if (dbItem) {
+        recommendedItemsSet.add(JSON.stringify(dbItem));
       }
     }
 
@@ -130,35 +118,29 @@ exports.getRecommendation = async (req, res, next) => {
     for (let order of orders) {
       const item = order.items[0]; // Assuming you want the first item of each order
       const itemName = item.name;
-      let foodItemTitleCase = toTitleCase(itemName); // Convert the food item name to Title Case
-
-      // Make API call to get recommendations
-      try {
-        const response = await axios.get(
-          `https://food-recommendation-yqpc.onrender.com/recommend/${foodItemTitleCase}`
-        );
-        const recommendedRecipes = response.data.recommended_recipes;
-
-        // Check if recommended items exist in the database
-        for (let recipe of recommendedRecipes) {
-          const dbItem = await MenuItem.findOne({ name: recipe });
-          if (dbItem) {
-            recommendedItemsSet.add(JSON.stringify(dbItem));
-          }
+      const recommendedRecipes = await fetchRecommendations([toTitleCase(itemName)]);
+      for (let recipe of recommendedRecipes) {
+        const dbItem = await MenuItem.findOne({ name: recipe });
+        if (dbItem) {
+          recommendedItemsSet.add(JSON.stringify(dbItem));
         }
-      } catch (e) {
-        console.log(e);
       }
     }
-    const recommendedItems = Array.from(recommendedItemsSet).map(item => JSON.parse(item));
-
 
+    const recommendedItems = Array.from(recommendedItemsSet).map(item =>
+      JSON.parse(item)
+    );
     res.json({ recommendedItems });
   } catch (error) {
     next(error);
   }
 };
 
+async function fetchRecommendations(foodItems) {
+  const response = await axios.post("https://food-recommendation-yqpc.onrender.com/recommend", foodItems);
+  return response.data.recommended_food_items;
+}
+
 function toTitleCase(str) {
   return str.replace(/\w\S*/g, function (txt) {
     return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();