es6 native

src/inc/trigger/coins.mjs

@@ -0,0 +1,50 @@
+import rp from "request-promise";
+
+const api_url = ({ market, crypto, currency }) => `https://api.cryptowat.ch/markets/${market}/${crypto}${currency}/summary`;
+const currencies = {
+  usd: ({ val }) => `\$${val}`,
+  eur: ({ val }) => `${val}€`,
+  eth: ({ val }) => `${val}Ξ`,
+  btc: ({ val }) => `${val}฿`,
+  xmr: ({ val }) => `${val} xmr`
+};
+const markets = {
+  btc: "coinbase",
+  eth: "coinbase",
+  xmr: "bitfinex"
+};
+
+export default bot => {
+  bot._trigger.set("coins", new bot.trigger({
+    call: /^(\.|\/)(btc|eth|xmr)/i,
+    f: e => {
+      cryptowat_summary(e.cmd, markets[e.cmd], e.cmd !== "xmr" ? e.args[0] || "eur" : "usd").then(
+        resolve => e.reply(resolve),
+        reject => e.reply(reject)
+      );
+    }
+  }));
+};
+
+const cryptowat_summary = (crypto, market, currency) => {
+  return new Promise((resolve, reject) => {
+    if (!Object.keys(currencies).includes(currency) || crypto === currency)
+      reject(`Can't convert or invalid currency: ${currency}`);
+    rp([{ market: market, crypto: crypto, currency: currency }].map(api_url).join``, { json: true })
+      .then(res => {
+        if (res.length === 0)
+          reject("No data received");
+        const data = {
+          last: [{ val: res.result.price.last }].map(currencies[currency]).join``,
+          high: [{ val: res.result.price.high }].map(currencies[currency]).join``,
+          low: [{ val: res.result.price.low }].map(currencies[currency]).join``,
+          change: (res.result.price.change.percentage * 100).toFixed(2),
+          volume: res.result.volume
+        };
+        resolve(`Current: [b]${data.last}[/b] - High: [b]${data.high}[/b] - Low: [b]${data.low}[/b] - Change: [b]${data.change}[/b]% - Volume: [b]${data.volume}[/b]`);
+      })
+      .catch(err => {
+        reject("lol cryptowatch ist down");
+      });
+  });
+};