added some verbose comments

src/components/Items.js

@@ -65,16 +65,22 @@ export default function Items({ token }) {
 
   /**
    * This function takes an image name and returns a unique image name.
+   * The purpose of this function is to prevent overwriting of images with the same name.
    * If the image name is 'image.jpg', a random string is generated and appended to the image name.
    * This is used to prevent overwriting of images with the same name.
+   * For example, if an image named 'image.jpg' is uploaded, the function will return 'image_8xgu6hcu.jpg'
+   * This ensures that the image will not overwrite any existing image with the same name.
    * @param {string} imageName - The name of the image
    * @return {string} - The unique image name
    */
   const generateUniqueImageName = (imageName) => {
     if (imageName.toLowerCase() === 'image.jpg') {
+      // Generate a random string
       const randomString = Math.random().toString(36).substr(2, 9);
+      // Append the random string to the image name
       return `image_${randomString}.jpg`;
     }
+    // Return the original image name if it's not 'image.jpg'
     return imageName;
   };
   
@@ -108,43 +114,70 @@ export default function Items({ token }) {
     }
   };
 
+  /**
+   * Handle saving a new item.
+   * 
+   * This function first creates the item without the image, then if the item creation is successful, 
+   * it uploads the image associated with the item.
+   * 
+   * @return {Promise<void>}
+   */
   const handleSaveNewItem = async () => {
     try {
-      // 1. Create the item first
+      // Step 1: Create the item first
+      // This sends a request to the API to create a new item with the
+      // name and description provided. The box_id is set to the selected
+      // box ID.
       const newItemResponse = await axios.post(`${process.env.REACT_APP_API_URL}/items`, {
         name: newItemName,
         description: newItemDescription,
-        box_id: parseInt(boxId, 10)
+        box_id: parseInt(boxId, 10) // Ensure boxId is converted to an integer
       }, {
         headers: { 
           Authorization: `Bearer ${token}`
         }
       });
-      //console.log('New item created:', newItemResponse.status);
 
-      // 2. If item creation is successful, upload the image
+      console.log('New item created:', newItemResponse.status);
+
+      // Step 2: If item creation is successful, upload the image
       if (newItemResponse.status === 200 && fileInputRef.current.files[0]) {
+        // Get the ID of the newly created item
         const newItemId = newItemResponse.data.id; 
+
+        // Get the image file that was uploaded
         const imageFile = fileInputRef.current.files[0];
+
+        // Generate a unique image name by appending a random string
+        // to the image file name. This is used to prevent overwriting
+        // of images with the same name.
         const newImageName = generateUniqueImageName(imageFile.name);
+
+        // Upload the image file with the unique name to the server
         const uploadedImagePath = await handleImageUpload(newItemId, fileInputRef.current.files[0], newImageName);
 
         if (uploadedImagePath) {
-          // console.log("Image path to save:", uploadedImagePath);
+          // The image was uploaded successfully. Log the uploaded image path
+          console.log("Image path to save:", uploadedImagePath);
 
           // You might want to update your item in the backend with the image path
           // For example:
           // await axios.put(...); 
 
         } else {
-          // Handle image upload failure 
+          // The image upload failed. Log an error message
           console.error('Failed to upload image for the new item.');
         }
       }
 
+      // Close the add item dialog
       handleCloseAddItemDialog(); 
+
+      // Fetch the items again to get the latest data
       fetchItems(); 
     } catch (error) {
+      // Catch any errors that may occur during the item creation
+      // and image upload process. Log the error message
       console.error('Error adding item:', error);
     }
   };