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

STDOUT.sync = true

settings = Hash(String, String).new

settings["home"] = Path.home.to_s
["access_token", "channel", "channel_id", "client_id", "client_id_twitch"].each do |key|
  begin
    settings[key] = File.read( settings["home"] + "/.config/twitch/" + key ).chomp
  rescue IO::Error
    STDERR.puts "Warning: Missing " + settings["home"] + "/.config/twitch/" + key
  end
end

client = Twitcr::Client.new( settings )

def ircmsg( home : String, channel : String, msg : String)
  if msg !~ /(\r|\n)/
    sock = Socket.unix
#    sock.connect Socket::UNIXAddress.new( home + "/.irssi/twitch-socket".to_s, type: Socket::Type::DGRAM )
    sock.connect Socket::UNIXAddress.new( home + "/.irssi/twitch-socket".to_s )
    sock.puts( "#" + channel + " " + msg )
    sock.close
  end
end

def t2smsg( msg : String)
  sock = Socket.unix
  sock.connect Socket::UNIXAddress.new( ENV["HOME"] + "/.t2s.sock" )
  sock.puts( msg )
  sock.close
rescue ex
  puts ex
end

def effectsmsg( msg : String )
  sock = Socket.unix
  sock.connect Socket::UNIXAddress.new( ENV["HOME"] + "/.effects.sock" )
  sock.puts( msg )
  sock.close
  puts "attempted to use glmatrix"
rescue ex
  puts ex
end

def userlog( settings : Hash(String, String), message : FastIRC::Message )
  unless ( ( prefix = message.prefix ) && ( chatuser = prefix.source ) && ( uid = message.tags["user-id"]? ) )
    return nil
  end
  basedir = settings["home"] + "/.cache/twitchtools"
  userdir = basedir + "/uids/" + uid
  unless File.directory?( userdir )
    Dir.mkdir( userdir )
  end
  unless File.directory?( userdir + "/names" )
    Dir.mkdir( userdir + "/names" )
  end
    unless File.symlink?( 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?
        ircmsg( settings["home"], settings["channel"], "Rename detected: #{uid}: #{namelatest} -> #{chatuser}" )
      end
      File.symlink( "../", userdir + "/names/" + chatuser )
    end
    unless File.symlink?( basedir + "/names/" + chatuser )
      File.symlink( "../uids/" + uid, basedir + "/names/" + chatuser )
    end
  unless ( message.params[0] == "#bungmonkey" )
    return nil
  end
  return ( [ chatuser, uid, userdir ] )
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["home"] + "/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

def t2s( settings : Hash(String, String), userdir : String, chatuser : String, text : String )
  if ( text !~ /^ *(!|\|)/ )
    namesub, voice_setting, voice = getvoice( settings, userdir, chatuser )
    t2stext = text.gsub( /http(s|):\/\/([a-z0-9.]+)\/[a-zA-Z0-9\/&=%-_]+/, "link to ${2}" )
    t2stext = t2stext.gsub( /rrr.+/, "rr" )
    t2smsg( "#{voice} #{namesub} #{t2stext}" )
    return( voice )
  else
    return( nil )
  end
end

voices = Hash(String, String).new
File.each_line( settings["home"] + "/voicelist" ) do |line|
  voices[ line.downcase ] = line
end

lastvoice = Array(String).new

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

# Create a handler to process incoming messages
bot.on_message do |message|
  next unless ( userlogreturn = userlog( settings, message ) )
  chatuser, uid, userdir = userlogreturn
  if ( t2sreturn = t2s( settings, userdir, chatuser, message.params[1] ) )
    lastvoice.insert( 0, t2sreturn )
    lastvoice = lastvoice[0..4]
  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]
  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" )
  if ( ( cmd == "substitute" ) && ( mod || sub ) )
    case message.params[1].split( " " ).size
    when 1
      if File.exists?( userdir + "/voicesub" )
        bot.message( "#bungmonkey", "| Current name substitution is \"#{File.read( userdir + "/voicesub" )}\"." )
      else
        bot.message( "#bungmonkey", "| Current name substitution is disabled." )
      end
    else
      if match[2]?
          voicesub = match[2].downcase
        if voicesub =~ /^(disabled|null|disable|none)$/
          if File.exists?( userdir + "/voicesub" )
            File.delete( userdir + "/voicesub" )
            bot.message( "#bungmonkey", "| Name substitution for #{chatuser} is now disabled." )
          else
            bot.message( "#bungmonkey", "| Name substitution for #{chatuser} is already disabled." )
          end
        else
          File.directory?( userdir ) || Dir.mkdir( userdir )
          File.write( userdir + "/voicesub", voicesub )
          bot.message( "#bungmonkey", "| Name substitution for #{chatuser} is now \"#{File.read( userdir + "/voicesub" )}\"." )
        end
      end
    end
  elsif ( ( cmd == "lastvoice" ) && ( mod || sub ) )
    unless lastvoice.empty?
    bot.message( "#bungmonkey", "| Last voices were " + lastvoice.join( ", " ) )
    else
      bot.message( "#bungmonkey", "| No voices used so far." )
    end
  elsif ( ( cmd =~ /^(voices|voicelist)$/ ) && ( mod || sub ) )
    bot.message( "#bungmonkey", "| https://bungmonkey.omgwallhack.org/voicelist.txt" )
  elsif ( ( cmd == "voice" ) && ( mod || sub ) )
    case message.params[1].split( " " ).size
    when 1
      namesub, voice_setting, voice_output = getvoice( settings, userdir, chatuser )
      bot.message( "#bungmonkey", "| 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( "#bungmonkey", "| Voice for #{chatuser} is now random." )
          else
            bot.message( "#bungmonkey", "| Voice for #{chatuser} is already random." )
          end
        elsif voices.has_key?( voice )
          csvoice = voices[voice]
          File.directory?( userdir ) || Dir.mkdir( userdir )
          File.write( userdir + "/voice", csvoice )
          pp userdir
          bot.message( "#bungmonkey", "| Voice for #{chatuser} is now #{File.read( userdir + "/voice" )}." )
          # TODO: make separate script to print streamelements URLs to client machine
        else
          bot.message( "#bungmonkey", "| Invalid voice. To see list, use !voices" )
        end
      end
    when 3
    else
    end
  elsif ( ( cmd =~ /^(status|title)$/ ) && ( mod || own ) )
    begin
      if match[2]?
          puts "2 matches"
        json = JSON.parse( client.put_channel!( settings["channel_id"].to_u64, status: match[2] ) )
        ircmsg( settings["home"], settings["channel"], "Status is now \"#{ json["status"] }\"")
      else
        puts "1 matches"
        json = JSON.parse( client.get_channel( settings["channel_id"].to_u64 ) )
        ircmsg( settings["home"], settings["channel"], "| Status is currently \"#{ json["status"] }\"")
      end
    rescue ex
      ircmsg( settings["home"], settings["channel"], "| An error occurred! " + ex.message.to_s )
    end
  elsif ( ( cmd =~ /^(game|category)$/ ) && ( mod || own ) )
    begin
      if match[2]?
          puts "2 matches"
        json = JSON.parse( client.put_channel!( settings["channel_id"].to_u64, game: match[2] ) )
        ircmsg( settings["home"], settings["channel"], "Game is now \"#{ json["game"] }\"")
      else
        puts "1 matches"
        json = JSON.parse( client.get_channel( settings["channel_id"].to_u64 ) )
        ircmsg( settings["home"], settings["channel"], "| Game is currently \"#{ json["game"] }\"")
      end
    rescue ex
      ircmsg( settings["home"], settings["channel"], "| An error occurred! " + ex.message.to_s )
    end
  elsif ( ( cmd == "urban" ) && ( mod || own || sub || vip ) )

  elsif ( cmd == "glmatrix" )
    effectsmsg( "overlay glmatrix" )
  elsif ( cmd == "followage" )
    begin
      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
          ircmsg( settings["home"], 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
          ircmsg( settings["home"], 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
        ircmsg( settings["home"], settings["channel"], "| " + json["data"][0]["followed_at"].to_s )
      end
    rescue ex
      ircmsg( settings["home"], settings["channel"], "An error occurred! " + ex.message.to_s )
    end
  end

rescue ex
  pp ex
end

rooms = Array( String ).new
rooms = [ "#bungmonkey", "kr3wzz" ]

# Connect to Twitch
bot.run( rooms.map{ | room | room.sub( /^#/, "") } )

# 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"]