Spotify integrations using following possible links/syntaxes:

- https://open.spotify.com/track/34AWo71Ya5gq7wpNnatwr7
- spotify:track:34AWo71Ya5gq7wpNnatwr7

Works with tracks, albums, artists and playlists.

.meteor/packages

@@ -41,6 +41,7 @@ rocketchat:oembed
 rocketchat:slashcommands-invite
 rocketchat:slashcommands-join
 rocketchat:slashcommands-leave
+rocketchat:spotify
 rocketchat:statistics
 rocketchat:webrtc
 #rocketchat:livechat

.meteor/versions

@@ -120,6 +120,7 @@ rocketchat:oembed@0.0.1
 rocketchat:slashcommands-invite@0.0.1
 rocketchat:slashcommands-join@0.0.1
 rocketchat:slashcommands-leave@0.0.1
+rocketchat:spotify@0.0.1
 rocketchat:statistics@0.0.1
 rocketchat:webrtc@0.0.1
 rocketchat:wordpress@0.0.1

packages/rocketchat-oembed/client/baseWidget.coffee

@@ -1,3 +1,11 @@
+Template.registerHelper 'replace', (source, find, replace, useRegex) ->
+	if useRegex is true
+		find = new RegExp(find)
+	return source.replace(find, replace)
+
+Template.registerHelper 'match', (source, regex) ->
+	return new RegExp(regex).test(source)
+
 Template.oembedBaseWidget.helpers
 	template: ->
 		# console.log this
@@ -10,4 +18,7 @@ Template.oembedBaseWidget.helpers
 		if this.parsedUrl?.host is 'www.youtube.com' and this.meta?.twitterPlayer?
 			return 'oembedYoutubeWidget'
 
-		return 'oembedUrlWidget'
+		if this.parsedUrl?.host is 'open.spotify.com' and this.meta?.ogAudio?
+			return 'oembedSpotifyWidget'
+
+		return 'oembedUrlWidget'

packages/rocketchat-oembed/client/oembedSpotifyWidget.html

@@ -0,0 +1,13 @@
+<template name="oembedSpotifyWidget">
+	{{#if parsedUrl}}
+		<blockquote>
+			<a href="https://www.spotify.com" style="color: #9e9ea6">Spotify</a><br/>
+			{{#if match meta.ogAudio "spotify:artist:\\S+"}}
+					<a href="{{url}}">{{{meta.ogTitle}}}</a><br/>
+			{{else}}
+				<a href="{{url}}">{{{replace meta.ogDescription ", an? (?:song|album) by (.+?) on Spotify" " - $1" true}}}</a><br/>
+			{{/if}}
+			<iframe width="300" height="380" src="https://embed.spotify.com/?uri={{meta.ogAudio}}" frameborder="0"></iframe><br/>
+		</blockquote>
+	{{/if}}
+</template>

packages/rocketchat-oembed/package.js

@@ -23,6 +23,7 @@ Package.onUse(function(api) {
 	api.addFiles('client/oembedAudioWidget.html', 'client');
 
 	api.addFiles('client/oembedYoutubeWidget.html', 'client');
+	api.addFiles('client/oembedSpotifyWidget.html', 'client');
 
 	api.addFiles('client/oembedUrlWidget.html', 'client');
 	api.addFiles('client/oembedUrlWidget.coffee', 'client');

packages/rocketchat-spotify/package.js

@@ -0,0 +1,22 @@
+Package.describe({
+	name: 'rocketchat:spotify',
+	version: '0.0.1',
+	summary: 'Message pre-processor that will translate spotify on messages',
+	git: ''
+});
+
+Package.onUse(function(api) {
+	api.versionsFrom('1.0');
+
+	api.use([
+		'coffeescript',
+		'underscore',
+		'rocketchat:lib@0.0.1'
+	]);
+
+	api.addFiles('spotify.coffee', ['server','client']);
+});
+
+Package.onTest(function(api) {
+
+});

packages/rocketchat-spotify/spotify.coffee

@@ -0,0 +1,48 @@
+###
+# Spotify a named function that will process Spotify (ex: spotify:track:1q6IK1l4qpYykOaWaLJkWG)
+# @param {Object} message - The message object
+###
+
+class Spotify
+	process = (message, source, callback) ->
+		if _.trim source
+			# Separate text in code blocks and non code blocks
+			msgParts = source.split(/(```\w*[\n\ ]?[\s\S]*?```+?)/)
+
+			for part, index in msgParts
+				# Verify if this part is code
+				codeMatch = part.match(/```(\w*)[\n\ ]?([\s\S]*?)```+?/)
+				if not codeMatch?
+					callback message, msgParts, part, index
+
+	@transform: (message) ->
+		urls = []
+		if Array.isArray message.urls
+			urls = urls.concat message.urls
+
+		changed = false
+
+		process message, message.msg, (message, msgParts, part) ->
+			re = /spotify:([^:]+):(\S+)/g
+			while match = re.exec(part)
+				url = "https://open.spotify.com/" + _.escape match[1] + "/" + _.escape match[2]
+				urls.push {'url': url}
+				changed = true
+
+		# Re-mount message
+		if changed
+			message.urls = urls
+
+		return message
+
+	@render: (message) ->
+		process message, message.html, (message, msgParts, part, index) ->
+				msgParts[index] = part.replace /(^|\s)spotify:([^:]+):(\S+)(\s|$)/g, (match, p1, p2, p3, p4) ->
+					url = 'https://open.spotify.com/' + _.escape p2 + '/' + _.escape p3
+					return p1 + '<a href="' + url + '" target="_blank">spotify:' + p2 + ':' + p3 + '</a>' + p4
+				message.html = msgParts.join('')
+
+		return message
+
+RocketChat.callbacks.add 'beforeSaveMessage', Spotify.transform, RocketChat.callbacks.priority.LOW
+RocketChat.callbacks.add 'renderMessage', Spotify.render