From dbb895c32cf01a538e715c63a55e21a8f6ca0344 Mon Sep 17 00:00:00 2001
From: Emily Doherty <git@emily.sh>
Date: Sat, 26 Nov 2022 02:10:34 -0800
Subject: [PATCH] Initial implementation of efficient chart updater

---
 src/index.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/index.js b/src/index.js
index f5e635d..94eff04 100644
--- a/src/index.js
+++ b/src/index.js
@@ -80,11 +80,22 @@ function updateRegionalToken(region, data) {
         current_price_hash[region] = data['price_data'][region];
         if (region === current_region_selection) {
             formatToken();
+            add_data_to_chart(region, data);
         }
     }
     
 }
 
+function add_data_to_chart(region, data) {
+    if (token_chart) {
+        const datum = {'time': data['current_time'], 'value': data['price_data'][region]}
+        token_chart.data.datasets.forEach((dataset) => {
+            dataset.data.push(datum);
+        })
+        token_chart.update();
+    }
+}
+
 export function updateRegionPreference(newRegion) {
     if (newRegion !== current_region_selection) {
         token_chart.destroy();