add seek command + update README

README.md

@@ -14,12 +14,12 @@ summon | Join the channel the author of the message(now you can cast to the Bot
 disconnect | Disconnect from all current Voice Channels
 play | Play the following item(can be the name of the song or the Stream URL)
 pause/resume | Pause/Resume audio
+seek | Where to Seek to in seconds or MM:SS
 help | Display the help message
 
 ### Limitations
 
 - Playlist (soon)
-- Seek to functionality (soon)
 - [Playing Video Content](https://support.discord.com/hc/en-us/community/posts/360059238512-Add-Go-Live-support-for-API) (if Discord ever adds this, I'll implement it into this Bot)
 
 ## Getting Started

src/messagehandler.js

@@ -6,6 +6,9 @@ const {
 const {
 	getAudioDispatcher
 } = require("./dispachermanager");
+const {
+	hmsToSeconds
+} = require("./util");
 
 const discordclientmanager = require("./discordclientmanager");
 const jellyfinClientManager = require("./jellyfinclientmanager");
@@ -41,6 +44,15 @@ function getRandomDiscordColor () {
 	return ("#" + ("00" + (randomNumber(rS, rE)).toString(16)).substr(-2) + ("00" + (randomNumber(gS, gE)).toString(16)).substr(-2) + ("00" + (randomNumber(bS, bE)).toString(16)).substr(-2));
 }
 
+function getDiscordEmbedError(e){
+	return new Discord.MessageEmbed()
+		.setColor(0xff0000)
+		.setTitle("Error!")
+		.setTimestamp()
+		.setDescription("<:x:757935515445231651> " + e);
+}
+
+
 // Song Search, return the song itemID
 async function searchForItemID (searchString) {
 	const response = await jellyfinClientManager.getJellyfinClient().getSearchHints({
@@ -100,11 +112,7 @@ async function playThis (message) {
 		try {
 			itemID = await searchForItemID(argument);
 		} catch (e) {
-			const noSong = new Discord.MessageEmbed()
-				.setColor(0xff0000)
-				.setTitle("Error!")
-				.setTimestamp()
-				.setDescription("<:x:757935515445231651> " + e);
+			const noSong = getDiscordEmbedError(e);
 			message.channel.send(noSong);
 			playbackmanager.stop(isSummendByPlay?discordClient.user.client.voice.connections.first():undefined);
 			return;
@@ -170,6 +178,15 @@ function handleChannelMessage (message) {
 		} else {
 			playbackmanager.stop();
 		}
+	} else if (message.content.startsWith(CONFIG["discord-prefix"] + "seek")) {
+		const indexOfArgument = message.content.indexOf(CONFIG["discord-prefix"] + "seek") + (CONFIG["discord-prefix"] + "seek").length + 1;
+		const argument = message.content.slice(indexOfArgument);
+		try {
+			playbackmanager.seek(hmsToSeconds(argument)*10000000);
+		} catch (error) {
+			const errorMessage = getDiscordEmbedError(error);
+			message.channel.send(errorMessage);
+		}
 	} else if (message.content.startsWith(CONFIG["discord-prefix"] + "help")) {
 		/* eslint-disable quotes */
 		const reply = new Discord.MessageEmbed()
@@ -187,6 +204,9 @@ function handleChannelMessage (message) {
 			}, {
 				name: `${CONFIG["discord-prefix"]}pause/resume`,
 				value: "Pause/Resume audio"
+			}, {
+				name: `${CONFIG["discord-prefix"]}seek`,
+				value: "Where to Seek to in seconds or MM:SS"
 			}, {
 				name: `${CONFIG["discord-prefix"]}help`,
 				value: "Display this help message"

src/playbackmanager.js

@@ -52,6 +52,8 @@ function seek (toSeek = 0) {
 	if (getAudioDispatcher()) {
 		startPlaying(undefined, undefined, ticksToSeconds(toSeek), _disconnectOnFinish);
 		jellyfinClientManager.getJellyfinClient().reportPlaybackProgress(getProgressPayload());
+	}else{
+		throw Error("No Song Playing");
 	}
 }
 

src/util.js

@@ -7,7 +7,20 @@ function ticksToSeconds (ticks) {
 	return ticks / 10000000;
 }
 
+function hmsToSeconds(str) {
+    var p = str.split(':'),
+        s = 0, m = 1;
+
+    while (p.length > 0) {
+        s += m * parseInt(p.pop(), 10);
+        m *= 60;
+    }
+
+    return s;
+}
+
 module.exports = {
 	checkJellyfinItemIDRegex,
-	ticksToSeconds
+	ticksToSeconds,
+	hmsToSeconds
 };