From a962bdabe11a1e1ecb71edc38a2d3d462cf054fb Mon Sep 17 00:00:00 2001
From: Jan Litzenburger <Jan.Litzenburger@de.ibm.com>
Date: Tue, 19 Jan 2021 18:15:01 +0100
Subject: [PATCH] crypto support doc

---
 MMM-Jast.js    |  5 ++++-
 README.md      | 22 ++++++++++++----------
 node_helper.js | 17 +++++++++++++----
 3 files changed, 29 insertions(+), 15 deletions(-)

diff --git a/MMM-Jast.js b/MMM-Jast.js
index 5fcbd8a..5426270 100644
--- a/MMM-Jast.js
+++ b/MMM-Jast.js
@@ -1,3 +1,5 @@
+/* global Class, JastUtils */
+
 "use strict";
 
 Module.register("MMM-Jast", {
@@ -20,11 +22,12 @@ Module.register("MMM-Jast", {
         quantity: 10
       }
     ],
+    crypto: [{ name: "BTC", symbol: "BTC" }],
     defaultCurrency: "EUR",
     baseURL: "https://www.alphavantage.co/",
     apiKey: "",
     scroll: "vertical",
-    //maxWidth: "300px",
+    maxWidth: "100%",
     showDepotGrowth: false
   },
 
diff --git a/README.md b/README.md
index 2bded12..ce9214b 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,10 @@
 # MMM-JaST - **J**ust **a**nother **S**tock **T**icker
-This is just another stock ticker for [Magic Mirror](https://magicmirror.builders/).  
+This is just another stock ticker for [Magic Mirror](https://magicmirror.builders/).
 Click here for the Magic Mirror [Forum Thread](https://forum.magicmirror.builders/topic/12507/mmm-jast-just-another-stock-ticker)
 
-
 ## Features
+- Support for Stock symbols
+- Support for Crypto symbols (experimental!)
 - Multiple currencies
 - Currency exchange support
 - Vertical scrolling
@@ -11,7 +12,7 @@ Click here for the Magic Mirror [Forum Thread](https://forum.magicmirror.builder
 - Depot value growth summary
 
 ## Installing the Module
-Navigate to the MagicMirror subfolder "modules" and execute the following command  
+Navigate to the MagicMirror subfolder "modules" and execute the following command
 `git clone https://github.com/jalibu/MMM-Jast.git`
 
 ## Using the module
@@ -25,19 +26,20 @@ To use this module, add it to the modules array in the `config/config.js` file:
 	module: "MMM-Jast",
 	position: "top_left",
 	config: {
+    maxWidth: "100%",
 		updateIntervalInSeconds: 1800,
-		fadeSpeedInSeconds: 3.5,
+		fadeSpeedInSeconds: 3.5, // Higher value: vertical -> faster // horizontal -> slower
+    scroll: "<none, vertical, horizontal>",
+    defaultCurrency: "EUR",
+    showDepotGrowth: true
+    apiKey: "<Insert your API Key>",
 		stocks: [
 		{ name: "BASF", symbol: "BAS.DE", quantity: 10 },
 		{ name: "SAP", symbol: "SAP.DE", quantitiy: 15 },
 		{ name: "Henkel", symbol: "HEN3.DE" },
 		{ name: "Alibaba", symbol: "BABA", tradeCurrency: "USD", displayCurrency: "EUR" },
-		],
-		defaultCurrency: "EUR",
-		apiKey: "<Insert your API Key>",
-		scroll: "<none, vertical, horizontal>",
-		maxWidth: "100%",
-		showDepotGrowth: true
+    ],
+    crypto: [{ name: "BTC", symbol: "BTC" },],
 	}
 }
 ```
diff --git a/node_helper.js b/node_helper.js
index 303e624..d427696 100644
--- a/node_helper.js
+++ b/node_helper.js
@@ -74,20 +74,29 @@ module.exports = NodeHelper.create({
     }
 
     config.crypto.forEach((crypto) => {
-      if (!crypto.lastUpdate || Date.now() - crypto.lastUpdate >= config.updateIntervalInSeconds * 1000) {
+      if (
+        !crypto.lastUpdate ||
+        Date.now() - crypto.lastUpdate >= config.updateIntervalInSeconds * 1000
+      ) {
         const url = `${config.baseURL}query?function=DIGITAL_CURRENCY_DAILY&symbol=${crypto.symbol}&market=USD&apikey=${config.apiKey}`;
-        request(url, { json: true }, (err, res, body) => {
+        request(url, { json: true }, (err, _res, body) => {
           if (err) {
             console.error(`Error requesting Crypto data`);
           }
           try {
             const symbol = body["Meta Data"]["2. Digital Currency Code"];
-            const values = Object.values(body["Time Series (Digital Currency Daily)"]);
+            const values = Object.values(
+              body["Time Series (Digital Currency Daily)"]
+            );
             const current = parseFloat(values[0]["4a. close (USD)"]);
             const last = parseFloat(values[1]["4a. close (USD)"]);
 
             console.log("Sending Crypto result:", { symbol, current, last });
-            self.sendSocketNotification("CRYPTO_RESULT", { symbol, current, last });
+            self.sendSocketNotification("CRYPTO_RESULT", {
+              symbol,
+              current,
+              last
+            });
           } catch (err) {
             console.error(`Error processing Crypto response`, body);
           }