added ability to reset playlists

- only owners can run it 
- iterates over all playlists in foler /playlists (gitignored) 
- shuffles mpc playlist and then plays

.eslintrc

@@ -9,6 +9,7 @@
     }
   },
   "env": {
-    "node": true
+    "node": true,
+    "es6": true
   }
 }

package.json

@@ -4,7 +4,8 @@
   "description": "a bot",
   "main": "index.js",
   "scripts": {
-    "start": "node ./src"
+    "start": "node ./src",
+    "dev": "nodemon ./src"
   },
   "author": "notnull",
   "license": "ISC",

src/irc-bot.js

@@ -1,7 +1,12 @@
 const IRC = require('irc-framework')
 const bot = new IRC.Client()
 
-const { getPlaylist, getCurrentTrack, skipTrack } = require('./mpc-commands')
+const {
+  getPlaylist,
+  getCurrentTrack,
+  skipTrack,
+  reset,
+} = require('./mpc-commands')
 const { searchTrack, requestTrack } = require('./spotify')
 const chalk = require('chalk')
 
@@ -26,6 +31,7 @@ bot.on('socket close', () => console.log('bot has disconnected.'))
 bot.matchMessage(/^!hello/, event => event.reply('Hi!'))
 
 /** ADMIN COMMANDS **/
+bot.matchMessage(/^!reset/, event => handleReset(event))
 bot.matchMessage(/^!join/, event => handleJoin(event))
 bot.matchMessage(/^!part/, event => handlePart(event))
 bot.matchMessage(/^!quit/, event => handleQuit(event))
@@ -53,6 +59,10 @@ const handleQuit = event => {
   bot.quit(["You'll cowards, don't even smoke crack."])
 }
 
+const handleReset = event => {
+  if (!owners.includes(event.nick)) return
+  reset(event)
+}
 const sendPlaylist = event => {
   const { error, playlist } = getPlaylist()
   if (error) return event.reply('Something went wrong.')

src/mpc-commands.js

@@ -1,4 +1,5 @@
 const { spawnSync } = require('child_process')
+const fs = require('fs')
 
 const getPlaylist = () => {
   const { stderr, stdout } = spawnSync('mpc', ['playlist'])
@@ -17,8 +18,76 @@ const skipTrack = () => {
 }
 
 const insertTrack = spotifyURI => {
+  console.log('inserting track:', JSON.stringify(spotifyURI))
   const { stderr, stdout } = spawnSync('mpc', ['insert', spotifyURI])
   console.log(stderr.toString(), stdout.toString())
   return { error: stderr.toString(), insert: stdout.toString() }
 }
-module.exports = { getPlaylist, getCurrentTrack, skipTrack, insertTrack }
+
+const insertTrackAsync = spotifyURI => {
+  console.log('inserting track:', spotifyURI)
+  const promise = new Promise((resolve, reject) => {
+    const { stdout, error } = spawnSync('mpc', ['insert', spotifyURI])
+    if (error) reject(error.message)
+    resolve({ track: stdout.toString() })
+  })
+  return promise
+}
+
+const reset = event => {
+  clearAllPlaylists(event)
+  addAllPlaylists(event)
+}
+
+const clearAllPlaylists = event => {
+  const { error } = spawnSync('mpc', ['clear'])
+  if (error) return handleError(error, event)
+}
+
+const addAllPlaylists = async event => {
+  const files = fs.readdirSync('./playlists')
+  const tracks = readPlaylists(files)
+  try {
+    await Promise.all(
+      tracks.map(t => insertTrackAsync(t.split(' # ')[0]))
+    ).then(() => {
+      shuffleAllPlaylists()
+      play()
+    })
+  } catch (e) {
+    return handleError(e, event)
+  }
+}
+
+const readPlaylists = files =>
+  files
+    .map(f =>
+      fs
+        .readFileSync('./playlists/' + f)
+        .toString()
+        .split('\n')
+    )
+    .flat()
+
+const handleError = (err, event) => {
+  console.log(err)
+  return event.reply('Something went wrong.')
+}
+
+const shuffleAllPlaylists = event => {
+  const { error } = spawnSync('mpc', ['shuffle'])
+  if (error) return handleError(error, event)
+}
+
+const play = event => {
+  const { error } = spawnSync('mpc', ['play'])
+  if (error) return handleError(error, event)
+}
+
+module.exports = {
+  getPlaylist,
+  getCurrentTrack,
+  skipTrack,
+  insertTrack,
+  reset,
+}