From 63b687248bf3f6c70a8df489665b8c81d73e9e9f Mon Sep 17 00:00:00 2001
From: sahmad-merative <135624814+sahmad-merative@users.noreply.github.com>
Date: Thu, 5 Oct 2023 22:20:38 +0530
Subject: [PATCH] fix(duplicate-entries): removed duplicate entries (#345)

* fix(duplicate-entries): removed duplicate entries

* fix(duplicate-entries) : lint fixes
---
 blocks/blog-home/blog-home.js | 14 ++++++++++----
 scripts/scripts.js            | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 4 deletions(-)

diff --git a/blocks/blog-home/blog-home.js b/blocks/blog-home/blog-home.js
index 9b1af429..1992ba55 100644
--- a/blocks/blog-home/blog-home.js
+++ b/blocks/blog-home/blog-home.js
@@ -1,5 +1,6 @@
 import {
-  getAllBlogs, createCard, getBlogCategoryPages, createTag, sortArrayOfObjects,
+  getAllBlogs, createCard, getBlogCategoryPages,
+  createTag, sortArrayOfObjects, removeDuplicateEnteries,
 } from '../../scripts/scripts.js';
 
 const NUM_CARDS_SHOWN_AT_A_TIME = 6;
@@ -193,7 +194,8 @@ export function refreshCards(mode) {
       if (card.hasAttribute(attribute)) {
         const filterGroupValues = card.getAttribute(attribute).split(',');
         const found = filterGroupValues.some(
-          (checkedItem) => checkedList.find((item) => item.value === checkedItem.trim()),
+          (checkedItem) => checkedList.find((item) => item.value && checkedItem.trim()
+          && item.value.toLowerCase() === checkedItem.trim().toLowerCase()),
         );
         if (found) {
           card.removeAttribute('aria-hidden');
@@ -499,8 +501,8 @@ export default async function decorate(block) {
   // Make a call to get all blog details from the blog index
   const blogList = await getAllBlogs(category);
   const categoriesList = await getBlogCategoryPages();
-  const topics = new Set();
-  const audiences = new Set();
+  let topics = new Set();
+  let audiences = new Set();
   if (blogList.length) {
     const blogContent = createTag('div', { class: 'blog-content' });
     // Get default content in this section and add it to blog-content
@@ -547,6 +549,10 @@ export default async function decorate(block) {
       blogCards.append(blogCard);
     });
 
+    // remove duplicate enteries
+    topics = removeDuplicateEnteries(topics, 'set');
+    audiences = removeDuplicateEnteries(audiences, 'set');
+
     // Full card should be clickable
     blogCards.querySelectorAll('.card-item').forEach((card) => {
       card.addEventListener('click', () => {
diff --git a/scripts/scripts.js b/scripts/scripts.js
index 37bc5f9e..130a2c36 100644
--- a/scripts/scripts.js
+++ b/scripts/scripts.js
@@ -758,6 +758,38 @@ export async function getPDFsDocuments() {
   return (result);
 }
 
+/**
+ * Remove duplicate enteries from array or set
+ * @param {Array | Set} arr Array or Set object
+ * @param {string} type Identifier to check Array or Set. Value: set or array
+ * @returns {Array | Set} Result
+ */
+export function removeDuplicateEnteries(arr, type) {
+  const mapArr = new Map();
+  let result = [];
+
+  // Check if the array empty
+  if (!arr.length && type !== 'set') {
+    return result;
+  }
+  if (!arr.size && type === 'set') {
+    return new Set([]);
+  }
+
+  arr.forEach((item) => {
+    const key = item.toString().trim().toLowerCase();
+    if (!mapArr.has(key)) {
+      mapArr.set(key, item);
+    }
+  });
+  result = [...mapArr.values()];
+  if (type === 'set') {
+    result = new Set(result);
+  }
+
+  return result;
+}
+
 export function sortArrayOfObjects(arr, property, type) {
   let result = [];
   let sortedArray;