From b7c73fc964ac052052e251ca4ed984d63ae518e6 Mon Sep 17 00:00:00 2001
From: "Jyotirmoy Bandyopadhyaya [Bravo68]" <jbandyopadhayaya@gmail.com>
Date: Mon, 28 Nov 2022 13:06:05 +0530
Subject: [PATCH] Completed the assignment

---
 src/functions/calculate.js | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/src/functions/calculate.js b/src/functions/calculate.js
index 756a0de..5948e65 100644
--- a/src/functions/calculate.js
+++ b/src/functions/calculate.js
@@ -9,12 +9,9 @@ const {
 const results = [], amountStore = {};
 
 async function calculate(file, tokens, date) {
-    let tokenArr = tokens.split(',')
-    const USDConvStore = await getRates(tokenArr);
-
-    function USDConvStoreFn(parentCurreny, value){
-        const ans = value / USDConvStore[parentCurreny]
-        return ans.toFixed(2)
+    let tokenArr
+    if(tokens) {
+        tokenArr = tokens.split(',')
     }
 
     let dateToEpoch
@@ -25,6 +22,7 @@ async function calculate(file, tokens, date) {
     fs.createReadStream(file)
         .pipe(csv())
         .on('data', (data) => {
+            
             if(dateToEpoch){
                 if(data.timestamp > dateToEpoch){
                     results.push(data);
@@ -36,8 +34,17 @@ async function calculate(file, tokens, date) {
                 results.push(data);
             }
         })
-        .on('end', () => {
+        .on('end', async () => {
             const uniqueCoins = [...new Set(results.map(item => item.token))];
+            if(!tokens){
+                tokenArr = uniqueCoins
+            }
+            const USDConvStore = await getRates(tokenArr);
+
+            function USDConvStoreFn(parentCurreny, value){
+                const ans = value / USDConvStore[parentCurreny]
+                return ans.toFixed(2)
+            }
             
             uniqueCoins.forEach(coin => {
                 amountStore[coin] = 0