Crypto Command (#47)

* Crypto Command

Other files were changed automatically with `npm run format`

* Specify 24h Volume (!crypto)

Co-authored-by: Vlad <[email protected]>

commands/crypto.ts

@@ -0,0 +1,63 @@
+import { Message } from "discord.js";
+import { Command, CommandDefinition, Action } from ".";
+import dotenv from "dotenv";
+import fetch from "node-fetch";
+
+dotenv.config();
+
+export const description: CommandDefinition = {
+  name: "Crypto Watcher",
+  description:
+    "Displays Crypto data (price, volume, change...) for the pair provided.",
+  usage: ["!crypto <base-target>"],
+  keys: ["crypto"],
+};
+
+export const action: Action = async (message: Message): Promise<any> => {
+  const symbol = message.content.replace("!crypto ", "").toUpperCase();
+  if (symbol === "") {
+    message.channel.send(
+      "I don't see a symbol... For example, you can do `!crypto BASE-TARGET`, i.e. `!crypto btc-usd`"
+    );
+    return;
+  }
+
+  return fetch(`https://api.cryptonator.com/api/ticker/${symbol}`)
+    .then((response: any) => {
+      if (response.status !== 200) throw new Error("API Not OK");
+      return response.json();
+    })
+    .then((res: any) => {
+      if (res === undefined || res.length === 0)
+        // Result of an invalid symbol provided
+        message.channel.send(
+          "Invalid Symbol provided, but you can try again! :chart_with_upwards_trend:"
+        );
+      else {
+        return message.channel.send(
+          `**${symbol}** :chart_with_upwards_trend:\nCurrent: \`${
+            res.ticker.price
+          } ${res.ticker.target}\`\n24h Volume:\`${res.ticker.volume} ${
+            res.ticker.base
+          }\`\nPast Hour Change:\`${res.ticker.change} ${
+            res.ticker.target
+          }\`\nPast Hour Change Percentage:\`${
+            Math.round((res.ticker.change / res.ticker.price) * 100 * 1000) /
+            100
+          }%\``
+        );
+      }
+    })
+    .catch((err: any) => {
+      console.error(err);
+      return message.channel.send(
+        "Whoops... Looks like the API hit an error. Make sure the format you're using is `!crypto BASE-TARGET`. For example, `!crypto btc-usd`."
+      );
+    });
+};
+
+export const command: Command = {
+  definition: description,
+  action: action,
+};
+export default command;

commands/index.ts

@@ -13,8 +13,9 @@ import Tone from "./tone";
 import Remind from "./remind";
 import MadLibs from "./madlibs";
 import FSM from "./state-machine";
-import Music from './music';
+import Music from "./music";
 import NewMember from "./newmember";
+import Crypto from "./crypto";
 
 // To register a command, import it above and add it to this array.
 export const commands: Command[] = [
@@ -31,6 +32,7 @@ export const commands: Command[] = [
   Roulette,
   Remind,
   NewMember,
+  Crypto,
   PingPong,
   Contribute,
 ];

commands/madlibs.ts

@@ -28,9 +28,7 @@ wordValues.push([
 
 // Add duplicate "person" as "name"
 wordKeys.push("name");
-wordValues.push([
-  ...words.person,
-]);
+wordValues.push([...words.person]);
 
 function replaceInsertions(word: string): string {
   // If the word doesn't start with an insertion operator, throw it to the wolves.

commands/state-machine.ts

@@ -7,7 +7,8 @@ axiosRetry(axios, { retries: 3 });
 
 export const description: CommandDefinition = {
   name: "Finite State Machine",
-  description: "Returns a pretty image of an FSA. Takes optional start, end, and engine parameters.",
+  description:
+    "Returns a pretty image of an FSA. Takes optional start, end, and engine parameters.",
   usage: [
     "!fsm <[edge],[source],[target]>+ <start=[source]> <end=[target]> <engine=[engine]>",
     "!fsm a,x,y b,x,z a,y,x b,y,z b,y,z a,z,z b,z,z start=x end=z",
@@ -52,7 +53,9 @@ export const action: Action = async (message: Message): Promise<any> => {
 
   // Return early if input is malformed.
   if (points.length < 1)
-    return message.reply("Please provide at least two points and an edge, like 'a,x,y'");
+    return message.reply(
+      "Please provide at least two points and an edge, like 'a,x,y'"
+    );
   if (start.length > 1)
     return message.reply("Please provide just one 'start=source' definition.");
   if (end.length > 1)
@@ -65,7 +68,7 @@ export const action: Action = async (message: Message): Promise<any> => {
   if (end.length === 1) data.end = end[0].charAt(start[0].length);
   if (engine.length === 1) data.engine = engine[0].split("=")[1];
 
-  console.log(`Calling fsa-svc with data: ${JSON.stringify(data)}`);  
+  console.log(`Calling fsa-svc with data: ${JSON.stringify(data)}`);
 
   return axios
     .post(endpoint, data, config)

commands/translate.ts

@@ -84,7 +84,9 @@ export const translate = async (
   } else {
     // Key can be !translate or !baguette
     return translateIBM(text, "", "en-fr-CA").then(async (translation) => {
-      return message.reply(`the French Canadian translation is '${translation}'`);
+      return message.reply(
+        `the French Canadian translation is '${translation}'`
+      );
     });
   }