Add additional examples

.circleci/config.yml

@@ -6,7 +6,7 @@ commands:
     steps:
       - run:
           name: Install OS packages
-          command: apk add git build-base ruby-dev ruby-etc ruby-json libsodium
+          command: apk add git build-base ruby-dev ruby-etc ruby-json libsodium-dev
       - checkout
       - run:
           name: "Ruby version"

examples/voice_commands.rb

@@ -0,0 +1,78 @@
+# frozen_string_literal: true
+
+require 'discordrb'
+require 'shellwords'
+
+# The `/voice youtube <url>` command assumes that you have yt-dlp installed, and
+# available in your path. See: https://github.com/yt-dlp/yt-dlp
+
+bot = Discordrb::Bot.new(
+  token: ENV.fetch('SLASH_COMMAND_BOT_TOKEN', nil),
+  intents: [:server_messages]
+)
+
+bot.register_application_command(:voice, 'Connect and play audio over a voice channel') do |command|
+  command.subcommand(:connect, 'Connect to a voice channel')
+  command.subcommand(:disconnect, 'Disconnect from a voice channel')
+  command.subcommand(:stop, 'Stop playing the current audio')
+  command.subcommand(:youtube, 'Play audio from a YouTube video') do |options|
+    options.string(:url, 'URL of the youtube video', required: true)
+  end
+end
+
+bot.application_command(:voice).subcommand(:connect) do |event|
+  event.respond(content: 'Connecting...')
+  bot.voice_connect(event.user.voice_channel)
+  event.edit_response(content: 'Connected!')
+end
+
+bot.application_command(:voice).subcommand(:disconnect) do |event|
+  voice_channel = bot.voice(event.server.id)&.channel
+  if voice_channel
+    event.respond(content: 'Disconnecting...')
+    voice_channel.destroy
+    event.edit_response(content: 'Disconnected!')
+  else
+    event.respond(content: 'Nothing to do, not connected to voice currently')
+  end
+end
+
+bot.application_command(:voice).subcommand(:stop) do |event|
+  voice_channel = bot.voice(event.server.id)&.channel
+  if voice_channel
+    event.respond(content: 'Stopping...')
+    voice_channel.stop_playing
+    event.edit_response(content: 'Stopped!')
+  else
+    event.respond(content: 'Nothing to do, not connected to voice currently')
+  end
+end
+
+bot.application_command(:voice).subcommand(:youtube) do |event|
+  voice_channel = bot.voice(event.server.id)&.channel
+  if voice_channel
+    url = command.options['url']
+    if valid_youtube_url?(url)
+      event.respond(content: 'Playing YouTube video...')
+      voice_channel.play_io(youtube_video_io(url))
+      event.edit_response(content: 'Finished playing!')
+    else
+      event.respond(content: 'Invalid YouTube URL!')
+    end
+  else
+    event.respond(content: 'Please connect to voice with `/voice connect` first')
+  end
+end
+
+def valid_youtube_url?(url)
+  uri = URI(url)
+  ['youtu.be', 'youtube.com', 'www.youtube.com'].include?(uri.host)
+rescue StandardError
+  false
+end
+
+def youtube_video_io(url)
+  IO.popen("yt-dlp -q -o - #{Shellwords.escape(url)}")
+end
+
+bot.run