more features, handle mpd status

main.rb

@@ -36,7 +36,12 @@ end
 bot = Discordrb::Commands::CommandBot.new token: options[:bot_token], prefix: '!radio '
 
 bot.command :start do |event|
-  mpc.play
+  if mpc.running?
+    mpc.play
+  else
+    mpc.start
+    mpc.play
+  end
   event.respond("starting radio")
 end
 
@@ -73,6 +78,10 @@ bot.command :shuffle do |event|
   nil
 end
 
+bot.command :nowplaying do |event|
+  event.respond(mpc.nowplaying)
+end
+
 bot.command :initialize do |event|
   event.respond("loading last 50 messages from channel")
   channel  = bot.channel(options[:channel_id])
@@ -89,5 +98,13 @@ bot.message(in: options[:channel_id],contains: "youtube.com") do |event|
   parse_songs_from_string(event.content)
   update_mpd(mpc)
 end
-
-bot.run
+puts("logging into discord")
+bot.run(true)
+puts("starting main loop")
+loop do
+  timer = 15
+  sleep timer
+  if mpc.running?
+    bot.listening(mpc.nowplaying)
+  end
+end

mpc_shim.rb

@@ -43,6 +43,19 @@ class MpcShim
     return $?.success?
   end
 
+  def start()
+    `systemctl start mpd` unless `ps aux | grep mpd` != ""
+    `mpc ${host_arg} repeat`
+  end
+
+  def running?()
+    return `ps aux | grep mpd` == ""
+  end
+
+  def nowplaying()
+    return `mpc ${host_arg} | head -n 1`
+  end
+
   def initialize(hostname=:localhost)
     if hostname != :localhost
       @host_arg = "--host #{hostname} "

util.rb

@@ -24,7 +24,7 @@ def parse_songs_from_string(message)
     urls.each do |url|
       if sanity_check_video(url)
         res = `youtube-dl --ignore-errors --output \"spool/%(title)s.%(ext)s\" --extract-audio --audio-format mp3 #{url}`
-        if res 
+        if res
           puts "Downloaded #{url}"
         else
           puts "error downloading #{url}"