Implemented functionality of getting last played songs.

radio/index.js

@@ -1,5 +1,7 @@
 const fs = require("fs");
 const path = require("path");
+const uti = require("util");
+const exec = uti.promisify(require("child_process").exec);
 
 const Koa = require("koa");
 const koaPug = require("koa-pug");
@@ -30,13 +32,23 @@ async function getRadioStatus() {
 	}
 }
 
+async function getLastSongs(count=11) {
+	const { stdout, stderr } = await exec(`tail -n ${count} /var/log/icecast/playlist.log | awk -F '|' '{ print $4 }'`);
+	let songs = stdout.trim().split("\n");
+	songs.pop();
+	for (let i = 0; i < songs.length; ++i)
+		songs[i] = songs[i].split(' - ');
+	return songs;
+}
+
 function setRoutes() {
 	return koaRouter().get('/', async ctx => {
 		await ctx.render('index', {
 			title: "/ Radio",
 			description: "Internet-radio broadcasting from under my desk.",
 			main_site: util.getServiceByHost(ctx.header.host),
-			radio_status: await getRadioStatus()
+			radio_status: await getRadioStatus(),
+			last_songs: await getLastSongs()
 		});
 	})
 	.get('/filelist', async ctx => {
@@ -51,6 +63,9 @@ function setRoutes() {
 	})
 	.get('/stats', async ctx => {
 		ctx.body = await getRadioStatus();
+	})
+	.get('/lastplayed', async ctx => {
+		ctx.body = await getLastSongs();
 	});
 }