player monitor to hopefully help music break less

src/events/voiceStateUpdate.js

@@ -0,0 +1,42 @@
+// Copyright 2020 Emily J. / mudkipscience and contributors. Subject to the AGPLv3 license.
+
+const music = require('../modules/music')
+
+module.exports = (client, oldState, newState) => {
+  if (newState.channelID !== oldState.channelID) {
+    const guild = music.getGuild(newState.guild.id)
+
+    // Reset queue, dispatcher, etc if Woomy is forcibly disconnected from the queue
+    if (guild.voiceChannel && !guild.voiceChannel.members.get(client.user.id) && guild.queue.length > 0) {
+      guild.queue = []
+      guild.playing = false
+      guild.paused = false
+      guild.skippers = []
+    }
+
+    // Auto-disconnect feature
+    if (guild.playing && guild.channel && guild.voiceChannel.id === oldState.channelID) {
+      if (guild.voiceChannel.members.filter(member => !member.user.bot).size < 1) {
+        guild.message.channel.send('Everyone has left my voice channel, the music will end in two minutes if no one rejoins.')
+          .then(msg => {
+            msg.delete({ timeout: 120000 })
+          })
+
+        setTimeout(() => {
+          if (guild.dispatcher !== null && guild.voiceChannel.members.filter(member => !member.user.bot).size < 1) {
+            // Probably should be async? But no need here I think
+            guild.dispatcher.end('silent')
+
+            guild.queue = []
+            guild.playing = false
+            guild.paused = false
+            guild.dispatcher = null
+            guild.skippers = []
+
+            guild.message.channel.send('The music has ended because no one was listening to me ;~;')
+          }
+        }, 120000)
+      }
+    }
+  }
+}