path: root/crystal/bungmobott.cr

require "twitch/irc"
require "http"
require "uri"
require "twitcr"
require "json"
require "crystal_mpd"
require "obswebsocket"

STDOUT.sync = true
STDOUT.flush_on_newline = true

struct Nil
  def as_s?
    self
  end
end

settings = Hash(String, String).new

settings["configdir"] = Path.home./("/.config/bungmobott/").to_s
settings["statedir"]  = Path.home./("/.local/state/bungmobott/").to_s

if ENV["LOCALAPPDATA"]?
  settings["configdir"] = Path.windows( ENV["LOCALAPPDATA"] + "\\bungmobott\\" ).to_s
  settings["statedir"] = Path.windows( ENV["LOCALAPPDATA"] + "\\bungmobott\\state\\" ).to_s
end

settings["tempdir"] = "/tmp/bungmobott/"
ENV["TEMP"]? && ( settings["tempdir"] = "#{ENV["TEMP"]}\\bungmobott\\" )

ENV["XDG_CONFIG_HOME"]? && ( settings["configdir"] = ENV["XDG_CONFIG_HOME"] + "/bungmobott/" )
#ENV["XDG_DATA_HOME"]? && ( settings["datadir"] = ENV["XDG_DATA_HOME"] ) # unused?
ENV["XDG_STATE_HOME"]? && ( settings["statedir"] = ENV["XDG_STATE_HOME"] + "/bungmobott/" )

Dir.mkdir_p( settings["configdir"] )
Dir.mkdir_p( settings["statedir"] )
Dir.mkdir_p( settings["tempdir"] )

settings["home"] = Path.home.to_s
regextwitchuser = /^[0-9a-zA-Z_]+$/

error = false
[ "access_token", "client_id" ].each do |key|
  begin
    settings[key] = File.read( settings["configdir"] + key ).chomp
  rescue IO::Error
    STDERR.puts "ERROR: Missing " + settings["configdir"] + key
    error = true
  end
end

# enable gcloud?
if File.exists?( settings["configdir"] + "gcloud_token" ) && ( settings["gcloud_token"] = File.read( settings["configdir"] + "gcloud_token" ).chomp )
  gcloud = true
else
  gcloud = false
  STDERR.puts "Warning: #{settings["configdir"]}gcloud_token is missing; GCS voices disabled."
end

# enable aws?
if ! File.exists?( Path.home./("/.aws/credentials") )
  STDERR.puts "Warning: #{Path.home}/.aws/credentials is missing; AWS voices disabled."
  aws = false
elsif ! Process.find_executable( "aws.exe" )
  STDERR.puts "Warning: aws.exe is missing; AWS voices disabled."
  aws = false
else
  aws = true
end

# enable effects?
effects = Hash( String, String ).new
if File.exists?( settings["configdir"] + "/effects.txt" )
  File.each_line( settings["configdir"] + "/effects.txt" ) do |line|
    effects[ line.downcase ] = line
  end
end

client = Twitcr::Client.new( settings )

# derive channel_id from channel or vice versa
[ "channel", "channel_id" ].each do |key|
  File.exists?( settings["configdir"] + key ) && ( settings[key] = File.read( settings["configdir"] + key ).chomp )
end
if      ( settings["channel"]? =~ regextwitchuser ) &&   ( settings["channel_id"]? =~ /^[0-9]+$/ )
elsif ! ( settings["channel"]? =~ regextwitchuser ) &&   ( settings["channel_id"]? =~ /^[0-9]+$/ )
  settings["channel"]    = client.user( settings["channel_id"].to_u64 ).login
elsif   ( settings["channel"]? =~ regextwitchuser ) && ! ( settings["channel_id"]? =~ /^[0-9]+$/ )
  settings["channel_id"] = client.user( settings["channel"] ).id.to_s
else
  STDERR.puts "ERROR: Missing #{settings["configdir"]}channel and channel_id configuration keys."
  error = true
  # exit 2
end
if error == true
  {% if flag?(:windows) %}
    STDERR.puts "press enter to end program"
    gets
  {% end %}
  exit 1
end

if File.exists?( settings["configdir"] + "chatuser" )
  File.read( settings["configdir"] + "chat_user" ).chomp
else
  STDERR.puts "Warning: " + settings["configdir"] + "chat_user is missing; using configured channel instead."
  settings["chat_user"] = settings["channel"]
end

# fiber communication channels
ircipc = Channel( Tuple( String, String ) ).new
t2sipc = Channel( Tuple( String, String ) ).new
twitchipc = Channel( Tuple( String, Union( String, UInt64 ) ) ).new

obs = OBS::WebSocket.new( "ws://127.0.0.1:4455/" )

# OBS event thread
spawn do
  evchan = Channel( JSON::Any ).new
  obs.scenes["meta-foreground"].to_h.each_key do | key |
    if key =~ /^media-temporary-/
      obs.inputs[key].delete!
    end
  end
  obs.eventsub_add( evchan )
  while json = evchan.receive
    # A Fiber.yield occurs after this to make sure "json" doesn't get overwritten before we can use it.
    spawn do
      d = json # Copy *immediately*
      case d["eventType"].as_s
      when "CurrentProgramSceneChanged"
        ircipc.send( { "#" + settings["channel"], "| obs: switched scene to " + ( d["eventData"]["sceneName"]?.as_s? || "unknown" ) } )
      when "MediaInputPlaybackEnded"
        if d["eventData"]["inputName"].as_s =~ /^media-temporary-/
          obs.send( OBS.req( "RemoveInput", UUID.random.to_s, JSON.parse({ "inputName" => d["eventData"]["inputName"].as_s }.to_json) ) )
        elsif d["eventData"]["inputName"].as_s =~ /^media-/
          obs.scenes.current.metascene[d["eventData"]["inputName"].as_s][0].disable!
        end
      when "SceneItemEnableStateChanged"
          edata = d["eventData"]
          name = obs.scenes[ edata["sceneName"].as_s ][ edata["sceneItemId"].as_i64 ].name
          if name !~ /media-temporary/
            ircipc.send( { "##{settings["channel"]}", "| obs: source #{name} visibility is now #{edata["sceneItemEnabled"].as_bool}" } )
          end
      when "SceneItemTransformChanged"
        edata = d["eventData"]
        sceneitem = obs.scenes[edata["sceneName"].as_s][edata["sceneItemId"].as_i64]
        t = edata["sceneItemTransform"]
        if ( sceneitem.name =~ /^media-temporary-/ )
          spx = t["positionX"   ].as_f.to_i64
          spy = t["positionY"   ].as_f.to_i64
          sdx = t["sourceHeight"].as_f.to_i64
          sdy = t["sourceWidth" ].as_f.to_i64
          if ( spx == 0 && spy == 0 && sdx != 0 && sdy != 0 )
            # source position randomizer
            bx = obs.video.to_h["baseWidth" ].as(Int64 | Float64).to_i64
            by = obs.video.to_h["baseHeight"].as(Int64 | Float64).to_i64
            spx = ( rand(bx) - (sdx / 2) )
            spy = ( rand(by) - (sdy / 2) )
            sceneitem.transform( { "positionX" => spx, "positionY" => spy } )
          end
        end
      when "SourceFilterEnableStateChanged"
        edata = d["eventData"]
        ircipc.send( { "##{settings["channel"]}", "| obs: source #{edata["sourceName"].as_s} filter #{edata["filterName"].as_s} visibility is currently #{edata["filterEnabled"].as_bool}" } )
      end
    end
    Fiber.yield
  end
end

# Twitch API request handling thread
spawn do
  loop do
    begin
      while twitchtuple = twitchipc.receive
        cmd, arg = [ *twitchtuple ]
        case cmd
        when "get_user"
          userinfo = JSON.parse( client.get_user( arg ) )["data"][0]
          pp userinfo
          unless userinfo["broadcaster_type"].as_s.blank?
            puts "\033[38;5;12m#{userinfo["login"]} is #{userinfo["broadcaster_type"]}\033[0m"
          end
          userage = ( Time.utc.to_unix - Time::Format::RFC_3339.parse( userinfo["created_at"].as_s ).to_unix )
          if ( userage - 172800 ) < 0
            puts "\033[38;5;1m#{userinfo["login"]}'s account is #{((172800 - userage)/60/60).to_i64} hours old.\033[0m"
          end
        when "get_followers"
          followers = JSON.parse( client.get_user_follows( to: arg.to_u64 ) )["total"].as_i64
          if followers > 500
            puts "\033[38;5;2m#{followers} followers\033[0m"
          end
        end
      end
    end
  end
end

def obsrandommediaenable( obs : OBS::WebSocket, siname : String )
  if ( Random.rand(3) < 2 )
    obs.scenes.current.metascene[siname][0].enable!
  else
    randsiname = obs.scenes.current.metascene.keys.select( /^#{siname}/ ).sample( 1 )[0]
    obs.scenes.current.metascene[randsiname][0].enable!
  end
end

def obstemporarymediacreate( obs : OBS::WebSocket, sname : String, iname, path : String )
  iname = "media-temporary-effect-#{iname}"
  isettings = Hash( String, String | Bool | Int64 | Float64 ){
    "advanced" => true,
    "clear_on_media_end" => true,
    "color_range" => 0.to_i64,
    "is_local_file" => true,
    "looping" => false,
    "restart_on_activate" => true,
    "local_file" => path,
  }
  response = obs.scenes[sname].createinput( iname, "ffmpeg_source", isettings )
  # Skip ORM stuff and configure the SceneItem as fast as we possibly can
  if ( rdata = response["responseData"]? ) && ( goodtransform = obs.sources.last_known_real_transform?( iname ) )
    siid = rdata["sceneItemId"].as_i64
    obs.send( OBS.req( "SetSceneItemTransform", UUID.random.to_s, JSON.parse( { "sceneName" => sname, "sceneItemId" => siid, "sceneItemTransform" => { "positionX" => goodtransform.to_h["positionX"], "positionY" => goodtransform.to_h["positionY"] } }.to_json ) ) )
  end
end

def urbandef( term : String )
  ssl_context = OpenSSL::SSL::Context::Client.new
  {% if flag?(:windows) %}
  ssl_context.verify_mode = OpenSSL::SSL::VerifyMode::NONE
  {% end %}
  #https://api.urbandictionary.com/v0/define?term=waifu
  response = HTTP::Client.exec( "GET", "https://api.urbandictionary.com/v0/define?term=#{term}", tls: ssl_context )
  puts response.status_code
  json = JSON.parse( response.body )
  return json["list"][0]["definition"].to_s.gsub( /[\[\]]/, "" ).gsub( /(\r|\n)/, " " )
end

# Currently only used in flag?(:unix)
def t2smsg( settings : Hash(String, String), msg : String)
  if File.exists?( settings["statedir"] + "/.t2s.sock" )
    sock = Socket.unix
    sock.connect Socket::UNIXAddress.new( settings["statedir"] + "/.t2s.sock" )
    sock.puts( msg )
    sock.close
  end
rescue ex
  puts ex
end

def effectsmsg( settings : Hash(String, String), msg : String )
  if File.exists?( settings["statedir"] + "/.effects.sock" )
    sock = Socket.unix
    sock.connect Socket::UNIXAddress.new( settings["statedir"] + "/.effects.sock" )
    sock.puts( msg )
    sock.close
  end
rescue ex
  puts ex
end

def userlog( ircipc : Channel, settings : Hash(String, String), message : FastIRC::Message )
  unless ( ( prefix = message.prefix ) && ( chatuser = prefix.source ) && ( uid = message.tags["user-id"]? ) )
    return nil
  end
  basedir = settings["statedir"]
  userdir = basedir + "/uids/" + uid
  if File.directory?( userdir )
    lastseen = File.info( userdir ).modification_time.to_unix
  else
    lastseen = 0
  end
  Dir.mkdir_p( basedir + "/names" )
  Dir.mkdir_p( userdir + "/names" )
  File.touch( userdir )
  unless testrefuser2uid( userdir + "/names/" + chatuser )
    namelatest = ""
    datelatest = Time::UNIX_EPOCH
    Dir.each_child( userdir + "/names/" ) do |name|
      namedate = File.info( userdir + "/names/" + name ).modification_time
      if namedate > datelatest
        namelatest = name
        datelatest = namedate
      end
    end
    unless namelatest.empty?
      ircipc.send( { "##{settings["channel"]}", "Rename detected: #{uid}: #{namelatest} -> #{chatuser}" } )
    end
    genrefuser2uid( userdir + "/names/" + chatuser, uid, 3 )
  end
  unless testrefuser2uid( basedir + "/names/" + chatuser )
    genrefuser2uid( basedir + "/names/" + chatuser, uid, 1 )
  end
  unless ( message.params[0] == "##{settings["channel"]}" )
    return nil
  end
  return ( { chatuser, uid, userdir, lastseen } )
rescue ex
  puts ex
end

def getvoice( settings : Hash(String, String), userdir : String, chatuser : String )
  if File.exists?( userdir + "/voice" )
    voice_output = File.read( userdir + "/voice" ).chomp
    voice_setting = voice_output
  else
    voice_output = File.read( settings["configdir"] + "/voicelist.txt" ).chomp.split( "\n" ).sample( 1 )[0].chomp
    voice_setting = "random"
  end
  if File.exists?( userdir + "/voicesub" )
    namesub = File.read( userdir + "/voicesub" ).chomp
  else
    namesub = chatuser
  end
  return( [namesub, voice_setting, voice_output ] )
end

# text2speech
def t2s( t2sipc : Channel, settings : Hash(String, String), userdir : String, chatuser : String, text : String )
  if ( text !~ /^ *(!|\|)/ )
    namesub, voice_setting, voice = getvoice( settings, userdir, chatuser )
    subs = Array( Tuple( Regex, String ) ){
      { /http(s|):\/\/([a-z0-9.-]+)\/[a-zA-Z0-9\/&=%-_]+/, "link to \\2" },
      { /([^a-zA-Z0-9])-/, "\\1 dash "},
      { /\|/, " vertical bar "},
      { /\`/, " grave accent "},
      { /\+/, " plus "},
      { /×/, " multiplied by "},
      { /=/, " equals "},
      { /\//, " slash "},
      { /\\/, " backslash "},
      { /@/, " at "},
      { /&/, " and "},
      { />/, " greater than "},
      { /</, " less than "},
      { /_/, " underscore "},
      { /\.\.\./, " dot dot dot "},
      { /\^/, " circumflex accent "},
      { /\#/, " octothorpe "},
      { /:([^ ])/, " colon \\1"},
      { /;([^ ])/, " semicolon \\1"},
      { /\.([^ ])/, " dot \\1"},
      { /\%([^ ])/, " percent sign \\1"},
      { /!([^ ])/, " tchik \\1"},
      { /([^ ])\$/, "\\1 dollar sign "},
      { /\(/, " open paren "},
      { /\)/, " close paren "},
      { /\{/, " open curly bracket "},
      { /\}/, " close curly bracket "},
      { /\[/, " open square bracket "},
      { /\]/, " close square bracket "},
      { /0/, " zero " },
      { /1/, " one " },
      { /2/, " two " },
      { /3/, " three " },
      { /4/, " four " },
      { /5/, " five " },
      { /6/, " six " },
      { /7/, " seven " },
      { /8/, " eight " },
      { /9/, " nine " },
      { /rrr.+/, "rr" },
    }.each do | subtuple |
      text = text.gsub( subtuple[0], subtuple[1] )
    end
    {% if flag?(:windows) %}
      t2sipc.send( { voice, "#{namesub} #{text}" } )
    {% else %}
      t2smsg( settings, "#{voice} #{namesub} #{text}" )
    {% end %}
    return( voice )
  else
    return( nil )
  end
end

def playaudiofile( filepath : String )
  p = Process.new(
    "powershell.exe",
    [ "-Command", "#Set-PSDebug -Trace 1;
      Add-Type -AssemblyName presentationCore;
      $player = New-Object system.windows.media.mediaplayer;
      $player.open(\"#{filepath}\");
      $player.volume = .99;
      $player.play();
      Start-Sleep -Milliseconds 1000;
      $duration = $player.NaturalDuration.TimeSpan.TotalMilliseconds;
      Start-Sleep -Milliseconds ($duration - 1000 );
    "],
    output: STDOUT, error: STDERR
  )
  # https://geekeefy.wordpress.com/2016/07/19/powershellmediaplayer/ has some ideas
  p.wait
end

def regeneratevoicelist( settings : Hash( String, String ), aws : Bool, gcloud : Bool )
  voices = Hash(String, String).new
  if aws
    JSON.parse( `aws polly describe-voices` )["Voices"].as_a.each do | v |
      voices[ v["Id"].as_s.downcase ] = v["Id"].as_s
    end
  end
  if gcloud
    ssl_context = OpenSSL::SSL::Context::Client.new
    {% if flag?(:windows) %}
    ssl_context.verify_mode = OpenSSL::SSL::VerifyMode::NONE
    {% end %}
    headers = HTTP::Headers.new
    headers["Content-Type"] = "application/json; charset=utf-8"

    response = HTTP::Client.exec( "GET", "https://texttospeech.googleapis.com/v1/voices?key=#{settings["gcloud_token"]}", headers, nil, tls: ssl_context )

    JSON.parse( response.body )["voices"].as_a.each do | v |
      voices[ v["name"].as_s.downcase ] = v["name"].as_s
    end
  end
  {% if flag?(:windows) %}
    p = Process.new(
      "powershell.exe",
      [ "-Command", "
        Add-Type -AssemblyName System.Speech;
        $speak = New-Object System.Speech.Synthesis.SpeechSynthesizer;
        $speak.GetInstalledVoices().VoiceInfo | Select-Object Name
      "],
      output: Process::Redirect::Pipe
    )
    p.output.each_line do | v |
      v = v.gsub(/ +$/, "")
      v = v.gsub(/ Desktop$/, "")
      v = v.gsub( " ", "-" )
      if v =~ /[A-Za-z0-9]-[A-Za-z0-9]/
        voices[ v.downcase ] = v
      end
    end
  {% end %}

  File.write( settings["configdir"] + "/voicelist.txt", voices.values.sort.join("\r\n") )
  return voices
end

macro testrefuser2uid( path )
  {% if flag?(:windows) %}
    File.exists?( {{path}} ) && ( File.read( {{ path }} ) =~ /^[0-9]+$/ )
  {% else %}
    File.symlink?( {{path}} )
  {% end %}
end

macro genrefuser2uid( path, uid, depth )
  {% if flag?(:windows) %}
    File.write( {{path}}, {{uid}}.to_s )
  {% else %}
    File.symlink( "../"*{{depth}} + "uids/#{{{uid}}}", {{path}} )
  {% end %}
end

voices = Hash(String, String).new
if File.exists?( settings["configdir"] + "/voicelist.txt" )
  File.each_line( settings["configdir"] + "/voicelist.txt" ) do |line|
    voices[ line.downcase ] = line
  end
else
  voices = regeneratevoicelist( settings, aws, gcloud )
end

lastvoice = Array(String).new

#streamstatus = Hash(String, Union( Bool, Float64, Int64, UInt64, String ) ).new
streamstatus = Hash(String, JSON::Any).new
outputstatus = Hash(String, JSON::Any).new

# Put tts stuff into the same thread so each playback blocks the next
spawn do
  loop do
    begin
      while t2stuple = t2sipc.receive
      voice, text = [ *t2stuple ]
        if ( match = voice.match( /^Microsoft-([A-Za-z]+)/ ) )
          if ( match[1] =~ /Lili|Mary|Mike|Sam|Anna/ )
            msttsvoice="Microsoft #{match[1]}"
          else
            msttsvoice="Microsoft #{match[1]} Desktop"
          end
          p = Process.new(
              "powershell.exe",
              [ "-Command", "
                Add-Type -AssemblyName System.Speech;
                $speak = New-Object System.Speech.Synthesis.SpeechSynthesizer;
                $speak.SelectVoice(\"#{msttsvoice}\");
                $speak.Speak($Input);
                $speak.Finalize;
              "],
              input: Process::Redirect::Pipe, output: STDOUT
            )
          p.input.puts text
          p.input.close
          p.wait
        elsif gcloud && ( match = voice.match( /^([a-zA-Z]{2,3}-[a-zA-Z]{2})/ ) ) # Google cloud voice
          request = Hash( String, Hash( String, String ) ){
            "input" => { "text" => text },
            "audioConfig" => { "audioEncoding" => "MP3" },
            "voice" => {
              "name" => voice,
              "languageCode" => match[1],
            },
          }
          ssl_context = OpenSSL::SSL::Context::Client.new
          ssl_context.verify_mode = OpenSSL::SSL::VerifyMode::NONE

          headers = HTTP::Headers.new
          headers["Content-Type"] = "application/json; charset=utf-8"

          response = HTTP::Client.exec( "POST", "https://texttospeech.googleapis.com/v1/text:synthesize?key=#{settings["gcloud_token"]}", headers, request.to_json, tls: ssl_context )

          response.body

          filepath="#{settings["tempdir"]}#{Time.utc.to_unix_ms}.mp3"
          json=JSON.parse(response.body)
          File.write( filepath, Base64.decode_string( json["audioContent"].as_s ) )
          playaudiofile( filepath )
          File.delete( filepath )
        elsif aws # AWS polly voices
          filepath="#{settings["tempdir"]}#{Time.utc.to_unix_ms}.mp3"
          p = Process.new(
            "aws.exe", [
              "polly", "synthesize-speech",
              "--output-format", "mp3",
              "--voice-id", voice,
              "--text", text,
              filepath
            ], output: STDOUT, error: STDERR
          )
          p.wait
          playaudiofile( filepath )
          File.delete( filepath )
        else # unknown
          STDERR.puts "Voice not recognized or available."
        end
      end
    rescue ex
      puts ex
    end
  end
end

# main thread: IRC
loop do
  begin

    bot = Twitch::IRC::Client.new( nick: settings["chat_user"], token: "oauth:" + settings["access_token"], log_mode: true )
    bot.tags = [ "membership", "tags", "commands" ]

    # Outgoing IRC message thread
    # "Most IRC servers limit messages to 512 bytes in length, including the trailing CR-LF characters."
    # PRIVMSG #channel message\r\n
    spawn do
      while msgtuple = ircipc.receive # why does this need to be a tuple?
        sizelimit=( 512 - ( msgtuple[0].size + 12 ) )
        bot.message( msgtuple[0], msgtuple[1][0..sizelimit] ) # limit size
      end
    end

    # Create a handler to process incoming messages
    bot.on_message do |message|
      spawn do
        next unless ( userlogreturn = userlog( ircipc, settings, message ) )
        chatuser, uid, userdir, lastseen = userlogreturn
        if ( t2sreturn = t2s( t2sipc, settings, userdir, chatuser, message.params[1] ) )
          lastvoice.insert( 0, t2sreturn )
          lastvoice = lastvoice[0..4]
        end
        # Have we seen this user lately?
        if ( ( Time.utc.to_unix - lastseen ) >= 14400 )
          twitchipc.send( { "get_user", uid.to_u64 } )
          twitchipc.send( { "get_followers", uid.to_u64 } )
          prevnames = Array( String ).new
          if ( prevnames = Dir.children( settings["statedir"] + "/uids/" + uid + "/names" ) ) && ( prevnames.size > 1 )
            prevnames.delete( chatuser )
            puts "\033[38;5;14m#{chatuser} previous names: #{prevnames.join(", ")}\033[0m"
          end
          # play random fanfare if available.
          {% if flag?(:windows) %}
            # This file hierarchy gets manually set up for now.
            # Maybe someday let mods do something like:
            # !fanfare add pipne https://pip.ne/sniff.mp3
            if File.exists?( userdir + "/fanfare/" )
              playaudiofile( userdir + "/fanfare/" + Dir.children( userdir + "/fanfare/" ).sample )
            end
          {% else %}
            t2smsg( settings, "fanfare #{uid} #{chatuser}" )
          {% end %}
        end
        own = ( message.tags["room-id"] == message.tags["user-id"] )
        vip = ( message.tags["badges"].to_s.matches?( /(^|,)vip\// ) )
        mod = ( message.tags["mod"] == "1" )
        sub = ( message.tags["subscriber"] == "1" )
        [ { 301501910, "farts"      },
          { 322820,    "explosions" } ].each do | fx |
          emoteid = fx[0]
          fxname  = fx[1]
          if (      message.tags["emotes"]? ) &&
          (         message.tags["emotes"]  ) &&
          ( fxemotes = message.tags["emotes"].not_nil!.split("/").select( /^#{emoteid}[:_]/ ).join(",").split(",") ) &&
          ( ! fxemotes[0].empty? ) &&
          ( effects.values.select(/^#{fxname}/).size > 0 )
            effects.values.select(/^#{fxname}/).sample( fxemotes.size ).each do | filepath |
              obstemporarymediacreate( obs, "meta-foreground", filepath.gsub(/[\/ ]/, '_').downcase, "C:/cygwin64/home/user/effects/#{filepath}" )
            end
          end
        end
        case message.params[1]
        when /pl(ease|z).+nerf/i
          obsrandommediaenable( obs, "media-youdied-nerf" )
        when /you.+died/i
          obsrandommediaenable( obs, "media-youdied" )
        when /did +nothing +wrong/i
          obsrandommediaenable( obs, "media-youdied-tiggs" )
        when /thanks.+obama/i
          obsrandommediaenable( obs, "media-youdied-thanksobama" )
        end
        next unless ( ( match = message.params[1].match(/^ *!([A-Za-z]+) (([a-zA-Z0-9= _\:,.&'\/?;\\\(\)\[\]+\-]|!)+)/) || message.params[1].match(/^ *!([A-Za-z]+)/) ) )
        cmd = match[1]
        if ( ( cmd =~ /^(substitute|voicesub)$/ ) && ( mod || sub ) )
          case message.params[1].split( " " ).size
          when 1
            if File.exists?( userdir + "/voicesub" )
              bot.message( "##{settings["channel"]}", "| Current name substitution is \"#{File.read( userdir + "/voicesub" )}\"." )
            else
              bot.message( "##{settings["channel"]}", "| Current name substitution is disabled." )
            end
          else
            if match[2]?
              voicesub = match[2].downcase
              if voicesub =~ /^(disabled|null|disable|none)$/
                if File.exists?( userdir + "/voicesub" )
                  File.delete( userdir + "/voicesub" )
                  bot.message( "##{settings["channel"]}", "| Name substitution for #{chatuser} is now disabled." )
                else
                  bot.message( "##{settings["channel"]}", "| Name substitution for #{chatuser} is already disabled." )
                end
              else
                Dir.mkdir_p( userdir )
                File.write( userdir + "/voicesub", voicesub )
                bot.message( "##{settings["channel"]}", "| Name substitution for #{chatuser} is now \"#{File.read( userdir + "/voicesub" )}\"." )
              end
            end
          end
        elsif ( cmd =~ /^(commands|help)$/ )
          bot.message( "##{settings["channel"]}", "| https://bungmonkey.omgwallhack.org/txt/commands.txt" )
        elsif ( cmd =~ /^(dexem)$/ )
          ircipc.send( { "##{settings["channel"]}", "| You're doing great work, Dexem!" } )
        elsif ( ( cmd == "lastvoice" ) && ( mod || sub ) )
          unless lastvoice.empty?
          bot.message( "##{settings["channel"]}", "| Last voices were " + lastvoice.join( ", " ) )
          else
            bot.message( "##{settings["channel"]}", "| No voices used so far." )
          end
        elsif ( ( cmd == "regeneratevoicelist" ) && ( own ) )
          voices = regeneratevoicelist( settings, aws, gcloud )
          ircipc.send( { "##{settings["channel"]}", "| Regenerated voicelist." } )
        elsif ( ( cmd =~ /^(voices|voice(s|)list|listvoice(s|))$/ ) && ( mod || sub ) )
          bot.message( "##{settings["channel"]}", "| https://bungmonkey.omgwallhack.org/voicelist.txt" )
        elsif ( ( cmd =~ /^(setvoice|voice)$/ ) && ( mod || sub ) )
          case message.params[1].split( " " ).size
          when 1
            namesub, voice_setting, voice_output = getvoice( settings, userdir, chatuser )
            bot.message( "##{settings["channel"]}", "| Current voice is #{voice_setting}" )
          when 2
            if match[2]?
              voice = match[2].downcase
              if voice =~ /disabled|null|disable|none|random/
                if File.exists?( userdir + "/voice" )
                  File.delete( userdir + "/voice" )
                  bot.message( "##{settings["channel"]}", "| Voice for #{chatuser} is now random." )
                else
                  bot.message( "##{settings["channel"]}", "| Voice for #{chatuser} is already random." )
                end
              elsif voices.has_key?( voice )
                csvoice = voices[voice]
                Dir.mkdir_p( userdir )
                File.write( userdir + "/voice", csvoice )
                pp userdir
                bot.message( "##{settings["channel"]}", "| Voice for #{chatuser} is now #{File.read( userdir + "/voice" )}." )
              else
                pp ( match )
                bot.message( "##{settings["channel"]}", "| Invalid voice. To see list, use !voices" )
              end
            end
          when 3
          else
          end
        elsif ( cmd =~ /^uptime$/ )
          stats = obs.stats.to_h
          ostatus = obs.outputs["adv_stream"].status.to_h
          ircipc.send( { "##{settings["channel"]}", "| #{ostatus["outputTimecode"].to_s[0..7]} #{stats["activeFps"].to_s[0,2]}fps Usage: #{stats["cpuUsage"].as(Float64).to_i64}% #{stats["memoryUsage"].as(Float64).to_i64}MiB Frame losses: #{stats["outputSkippedFrames"].as(Int64)} #{stats["renderSkippedFrames"].as(Int64)}" } )
          # !newimage [name] [url] (random|top|bottom|left|right|center)
          # download url, verify mimetype with libmagic, duplicate existing medialoop source, change "file" SourceSetting
        elsif ( ( cmd =~ /^inputsetting(|s)$/ ) && ( mod || own || vip ) )
          if ( match[2]? && match[2] =~ /^[a-zA-Z0-9-_]+$/ )
            ircipc.send( { "##{settings["channel"]}", "| #{obs.inputs[match[2]].settings.to_h.to_s} " } )
          end
        elsif ( ( cmd =~ /^input(|s)$/ ) && ( mod || own || vip ) )
          ircipc.send( { "##{settings["channel"]}", "| inputs: #{obs.inputs.to_h.keys.join(" ")}" } )
        elsif ( ( cmd =~ /^scene(|s)$/ ) && ( mod || own || vip ) )
          if ( match[2]? && match[2] =~ /^[a-zA-Z0-9-_]+$/ )
            obs.scenes[match[2]].program!
          else
            ircipc.send( { "##{settings["channel"]}", "| scenes: #{obs.scenes.to_h.keys.join(" ")}" } )
          end
        elsif ( ( cmd =~ /^source(|s)$/ ) && ( mod || own || vip ) )
          request = Hash( String, String | Bool ).new
          if ( match[2]? && match[2] =~ /^[a-zA-Z0-9-_]+$/ )
            obs.scenes.current.metascene[match[2]][0].toggle!
            # in studio mode, direct Scene->SceneItem toggles require a transition
            obs.scenes.current.preview!
            obs.transition!
          else
            ircipc.send( { "##{settings["channel"]}", "| current sources: #{obs.scenes.current.metascene.keys.join(" ")}" } )
          end
        elsif ( ( cmd =~ /^filter(|s)$/ ) && ( mod || own ) )
          if ( match[2]? ) && ( filterargs = match[2].match( /^([a-zA-Z0-9-_]+) +([a-zA-Z0-9-_]+)/ ) )
             obs.sources.to_h[filterargs[1]].filters[filterargs[2]].toggle!
          elsif ( match[2]? && match[2] =~ /^[a-zA-Z0-9-_]+$/ )
              ircipc.send( { "##{settings["channel"]}", "| #{match[2]} filters: #{obs.sources.to_h[match[2]].filters.to_h.keys.join(" ")}" } )
          else
            ircipc.send( { "##{settings["channel"]}", "Must provide at least one source name as argument, and optionally one filter name to toggle on or off." } )
          end
        elsif ( cmd == "create" && ( mod || own || vip ) )
          if ( match[2]? ) && ( match[2] =~ /^([\/a-zA-Z0-9-_]+)/ )
            obstemporarymediacreate( obs, "meta-foreground", match[2], "C:/cygwin64/home/user/effects/#{match[2]}.webm" )
          else
            ircipc.send( { "##{settings["channel"]}", "Must provide at least one source name as argument." } )
          end
        elsif ( cmd =~ /^(metaminute|youdied)$/ )
          obsrandommediaenable( obs, "media-#{cmd}" )
        elsif ( cmd =~ /^fart(s|)$/ ) && ( sub || mod || own || vip )
          if effects.values.select( /^farts/ ).size > 0
            if ( match[2]? ) && ( match[2].match( /^([0-9]+)/ ) && ( match[2].to_i > 1 ) && ( match[2].to_i <= 32 ) )
              count = match[2].to_i
            else
              count = 1
            end
            effects.values.select( /^farts/ ).sample( count ).each do | effect |
              obstemporarymediacreate( obs, "meta-foreground", effect.gsub(/[\/ ]/, '_').downcase, "C:/cygwin64/home/user/effects/#{effect}" )
            end
          else
            puts "farts undefined"
          end
        elsif ( cmd =~ /^explosion(s|)$/ ) && ( sub || mod || own || vip )
          if effects.values.select( /^explosions/ ).size > 0
            if ( match[2]? ) && ( match[2].match( /^([0-9]+)/ ) && ( match[2].to_i > 1 ) && ( match[2].to_i <= 32 ) )
              count = match[2].to_i
            else
              count = 1
            end
            effects.values.select( /^explosions/ ).sample( count ).each do | effect |
              obstemporarymediacreate( obs, "meta-foreground", effect.gsub(/[\/ ]/, '_').downcase, "C:/cygwin64/home/user/effects/#{effect}" )
            end
          else
            puts "explosions undefined"
          end
        # FIXME: This is only half-implemented
        elsif ( ( cmd =~ /^(user)$/ ) && ( mod || own ) )
          if match[2]? && match[2] =~ /[a-z][a-z0-9_]+/
            twitchipc.send( { "get_user", match[2] } )
          elsif match[2]? && match[2] =~ /[0-9]+/
            twitchipc.send( { "get_user", match[2].to_u64 } )
          else
            twitchipc.send( { "get_user", settings["channel_id"].to_u64 } )
          end
        elsif ( ( cmd =~ /^(status|title)$/ ) && ( mod || own ) )
          if match[2]?
            client.put_channel!( settings["channel_id"].to_u64, title: match[2] )
            json = JSON.parse( client.get_channel( settings["channel_id"].to_u64 ) )
            ircipc.send( { "##{settings["channel"]}", "Title is now \"#{ json["data"][0]["title"] }\""} )
          else
            json = JSON.parse( client.get_channel( settings["channel_id"].to_u64 ) )
            ircipc.send( { "##{settings["channel"]}", "| Title is currently \"#{ json["data"][0]["title"] }\""} )
          end
        elsif ( ( cmd =~ /^(game|category)$/ ) && ( mod || own ) )
          if match[2]?
              puts "2 matches"
            client.put_channel!( settings["channel_id"].to_u64, game: match[2] )
            json = JSON.parse( client.get_channel( settings["channel_id"].to_u64 ) )
            ircipc.send( { "##{settings["channel"]}", "Game is now \"#{ json["data"][0]["game_name"] }\""} )
          else
            puts "1 matches"
            json = JSON.parse( client.get_channel( settings["channel_id"].to_u64 ) )
            ircipc.send( { "##{settings["channel"]}", "| Game is currently \"#{ json["data"][0]["game_name"] }\""} )
          end
        elsif ( ( cmd == "urban" ) && ( mod || own || sub || vip ) )
          if match[2]? && match[2] =~ /^([a-zA-Z0-9 -])+$/
            definition = urbandef( match[2] )
            ircipc.send( { "##{settings["channel"]}", definition[0,400] } )
            t2s( t2sipc, settings, userdir, chatuser, definition[0,400] )
          else
            ircipc.send( { "##{settings["channel"]}", "| Urban Dictionary search term should consist of letters, numbers, spaces, and/or hyphens." } )
          end
        elsif ( cmd == "matrix" )
          effectsmsg( settings, "overlay glmatrix" )
        elsif ( cmd =~ /juggle|juggler/ )
          effectsmsg( settings, "overlay juggler3d" )
        elsif ( cmd =~ /fireworks|firework/ )
          effectsmsg( settings, "overlay fireworkx" )
        elsif ( cmd == "pipes" )
          if match[2]? && match[2] =~ /^(fast|faster)$/
            effectsmsg( settings, "overlay pipes " + match[2] )
          else
            effectsmsg( settings, "overlay pipes" )
          end
        elsif ( cmd == "jellyfish" )
          effectsmsg( settings, "overlay hydrostat" )
        elsif ( cmd == "gluten" )
          effectsmsg( settings, "overlay flyingtoasters" )
        elsif ( cmd =~ /^(glsnake|glmatrix|gibson|xmatrix|flyingtoasters|moebiusgears|fireworkx|hydrostat|hypertorus|jigsaw|juggler3d|kaleidocycle|kumppa|molecule|noof|polyhedra)$/ )
          effectsmsg( settings, "overlay " + cmd )
        elsif ( cmd =~ /gltext|cowsay|xcowsay|cowfuscious/ )
          ( cmd == "cowfuscious" ) && ( cmd = "xcowsay" )
          if ( match[2]? ) && ( gltextargs = match[2].match( /^([0-9]+) +(.+)$/ ) )
            seconds=UInt64.new( 1 )
            seconds=gltextargs[1].to_u64
            if ( own || mod || vip )
              effectsmsg( settings, "overlay #{cmd} #{match[2]}" )
              puts "matched #{cmd} #{match[2]}"
            elsif ( sub )
              if ( seconds > 20 )
                seconds=20
              end
              effectsmsg( settings, "overlay #{cmd} #{seconds} #{gltextargs[2]}" )
              puts "matched #{cmd} #{seconds} #{gltextargs[2]}"
            else
              if ( seconds > 5 )
                seconds=5
              end
              effectsmsg( settings, "overlay #{cmd} #{seconds} #{gltextargs[2]}" )
              puts "matched #{cmd} #{seconds} #{gltextargs[2]}"
            end
          elsif match[2]? && match[2] =~ /^.+$/
            effectsmsg( settings, "overlay #{cmd} #{match[2]}" )
            puts "matched #{cmd} #{match[2]}"
          else
            effectsmsg( settings, "overlay #{cmd}" )
            puts "failed to match gltext"
          end
        elsif ( cmd =~ /^(cow(s|)|cowabunga|holycow$)/ )
          if match[2]? && match[2] =~ /^([0-9])+$/
            effectsmsg( settings, "overlay bouncingcow #{match[2]}" )
          else
            effectsmsg( settings, "overlay bouncingcow" )
          end
        elsif ( cmd == "overlay" )
          if match[2]? && match[2] =~ /^[a-z]+$/
            ircipc.send( { "##{settings["channel"]}", "| overlay requires an argument consisting wholly of lower case characters."} )
            effectsmsg( settings, "overlay #{match[2]}" )
          end
        elsif ( cmd =~ /^(shout|shoutout)$/ )
          if match[2]? && match[2] =~ /^[a-z]+$/
            ircipc.send( { "##{settings["channel"]}", "| Go check out twitch.tv/#{match[2]}"} )
            effectsmsg( settings, "overlay gltext 5 Go follow #{match[2]}" )
          else
            ircipc.send( { "##{settings["channel"]}", "| Missing argument."} )
          end
        elsif ( cmd =~ /^(system|dxdiag|computer)$/ ) && ( Crystal::DESCRIPTION =~ /linux/ )
          ircipc.send( { "##{settings["channel"]}", "| https://bungmonkey.omgwallhack.org/tmp/DxDiag.txt" } )
        elsif ( cmd == "hackerman" )
          ircipc.send( { "##{settings["channel"]}", "| https://bungmonkey.omgwallhack.org/img/hackerman.jpg" } )
        elsif ( cmd =~ /^(songrequest|sr)$/ ) && match[2]?
          puts ("song detected: #{match[2]}")
          if ( ( match[2] =~ /list=/ ) && ( match[2] !~ /v=/ ) )
            ircipc.send( { "##{settings["channel"]}", "| Lists are not accepted.\n" } )
          elsif Process.run( "sraddsong.sh", {match[2]} )
            m = MPD::Client.new
            currentsong = m.currentsong
            if ( currentsong ) && ( currentsong["file"].to_s == "http://music/music.ogg" )
              m.next
            end
            if ( status = m.status ) && ( playlistinfo = m.playlistinfo )
              ircipc.send( { "##{settings["channel"]}", "| " + playlistinfo[ status["playlistlength"].to_i - 1 ]["file"].to_s + " added in position " + status["playlistlength"].to_s } )
            else
              ircipc.send( { "##{settings["channel"]}", "| A failure occured." } )
            end
            m.disconnect
          else
          end
        elsif ( cmd =~ /^current(|song)$/ )
          m = MPD::Client.new
          if ( currentsong = m.currentsong )
              ircipc.send( { "##{settings["channel"]}", "| Currently playing: " + currentsong["file"].to_s } )
          else
            ircipc.send( { "##{settings["channel"]}", "| A failure occured." } )
          end
          m.disconnect
        elsif ( cmd =~ /^seek$/ )
          if ( ( match[2] ) && ( match[2] =~ /([+-]|)[0-9]/ ) )
            m = MPD::Client.new
            m.seekcur( match[2] )
            if ( ( musicstatus = m.status ) && ( pos = musicstatus["elapsed"].to_f.to_u64 ) )
              min=( pos / 60 ).to_u64
              sec=( pos % 60 ).to_u64
              ircipc.send( { "##{settings["channel"]}", "| " + sprintf( "2%d:2%d", min, sec ) } )
            else
              ircipc.send( { "##{settings["channel"]}", "| An error occurred. " } )
            end
            m.disconnect
          else
            ircipc.send( { "##{settings["channel"]}", "| Seek requires an argument of an absolute position in integer number of seconds, or a relative position in in signed integer number of seconds such as +60" } )
          end
        elsif ( cmd =~ /^next(|song)$/ )
          m = MPD::Client.new
          m.next
          if ( status = m.status ) && ( status["playlistlength"].to_i > 0 )
            if ( currentsong = m.nextsong )
              ircipc.send( { "##{settings["channel"]}", "| Currently playing: " + currentsong["file"].to_s } )
            else
              ircipc.send( { "##{settings["channel"]}", "| A failure occured." } )
            end
          else
            ircipc.send( { "##{settings["channel"]}", "| Playlist is now empty." } )
          end
          m.disconnect
        elsif ( cmd == "followage" )
          if match[2]?
            args = match[2].split(/\s/)
            if args[1]?
              json = JSON.parse( client.get_user_follows( from: client.user_id( args[0] ).to_u64 , to: client.user_id( args[1] ).to_u64 ) )
              puts client.user_id( args[0] ).to_s
              puts client.user_id( args[1] ).to_s
              puts json
              ircipc.send( { "##{settings["channel"]}", "| " + json["data"][0]["followed_at"].to_s } )
            elsif args[0]?
              json = JSON.parse( client.get_user_follows( from: client.user_id( args[0] ).to_u64 , to: settings["channel_id"].to_u64 ) )
              puts client.user_id( args[0] ).to_s
              puts json
              ircipc.send( { "##{settings["channel"]}", "| " + json["data"][0]["followed_at"].to_s } )
            end
          else
            json = JSON.parse( client.get_user_follows( from: uid.to_u64 , to: settings["channel_id"].to_u64 ) )
            puts json
            ircipc.send( { "##{settings["channel"]}", "| " + json["data"][0]["followed_at"].to_s } )
          end
        end
      rescue ex
        puts ex
        ircipc.send( { "##{settings["channel"]}", "An error occurred! " + ex.message.to_s } )
      end
    end

    rooms = Array( String ).new
    rooms = [ "##{settings["channel"]}" ]

    # Connect to Twitch
    bot.run( rooms.map{ | room | room.sub( /^#/, "") } )
  rescue ex : IO::Error
    pp ex
    sleep 1
    # loop to reconnect
  rescue ex
    pp ex
    {% if flag?(:windows) %}
      puts "press enter to end program"
      gets
    {% end %}
    exit 1
  end
end


# FastIRC::Message.to_s
# @badge-info=;badges=;color=;display-name=BungMonkey;emotes=;flags=;id=20fcc358-4fc3-4919-8229-f1034743d18f;mod=0;room-id=46694819;subscriber=0;tmi-sent-ts=1587876383907;turbo=0;user-id=59895482;user-type= :bungmonkey!bungmonkey@bungmonkey.tmi.twitch.tv PRIVMSG #kr3wzz test

# FastIRC::Message.tags
# {"badge-info" => "subscriber/34",
#  "badges" => "broadcaster/1,subscriber/12",
#  "color" => "",
#  "display-name" => "BungMonkey",
#  "emote-only" => "1",
#  "emotes" => "300780134:0-9",
#  "flags" => "",
#  "id" => "c5c08c05-6e39-483f-b426-488dfc477a6c",
#  "mod" => "0",
#  "room-id" => "59895482",
#  "subscriber" => "1",
#  "tmi-sent-ts" => "1587871386678",
#  "turbo" => "0",
#  "user-id" => "59895482",
#  "user-type" => ""}

#command = "PRIVMSG"
#prefix = Prefix(@source="bungmonkey", @user="bungmonkey", @host="bungmonkey.tmi.twitch.tv")
#params = ["#bungmonkey", "test test test test"]