# bot.rb
require 'socket'
require 'logger'

# Create logger
log = Logger.new("log.txt")

# Required Info
PASS = "oauth:xxxxxxxxxxxxxxxxxxxxxxxxxxxxx"					# "oauth:YourOauthToken" https://twitchapps.com/tmi/ <--- REQUIRED <--- REQUIRED
NICK = "botname"								# Name of bot										 <--- REQUIRED <--- REQUIRED
CHAN = "channel"								# Channel to join (Don't add a "#" hashtag)			 <--- REQUIRED <--- REQUIRED

# -------- IGNORE -------- #
BOTNAME = "#{NICK.downcase}"					# CHANNEL and BOTNAME needs to be in lowercase
CHANNEL = "##{CHAN.downcase}"					# So this was just added to be sure (Might aswell leave it)
# -------- IGNORE -------- #

# Save "Preparing to connect" to "log.txt"
log.info "Preparing to connect"

# Variables
socket = TCPSocket.new('irc.chat.twitch.tv', 6667)	# Creates the "socket" variable // With the specified IRC channel to join
running = true										# Creates the "running" variable (for loop)
send = "PRIVMSG #{CHANNEL} :"						# Creates the "send" variable (shortcut for sending messages)

# Save "Connected!" to "log.txt
log.info "Connected!"

# Authorization Login
socket.puts("PASS #{PASS}")						# Send the password to Twitch
socket.puts("NICK #{BOTNAME}")					# Send the username to Twitch
socket.puts("JOIN #{CHANNEL}")					# Send the channel to Twitch
socket.puts(send + "Connected!")				# Send "Connected!" to the Twitch channel

Thread.abort_on_exception = true

# Loop (Background Thread) for recieving Twitch chat data
Thread.start do
	puts ""											# Empty Line
	puts "#{BOTNAME} Joined #{CHANNEL}"				# Connection Status
	puts "You should be fully connected now"		# Connection Status
	puts ""											# Empty Line
	puts "Type \"quit\" to stop the bot"
	puts "Type \"clear\" to clear terminal"			# Shows available commands in the terminal
	puts "Type \"quit\" to send a custom message" 	# Before it starts the loop to recieve data
	puts ""											# Empty Line
	while (running) do
		ready = IO.select([socket])
		
		ready[0].each do |s|
			line = s.gets
			#puts line				# Show Information Recieved
			match = line.match(/^:(.+)!(.+)PRIVMSG #{CHANNEL} :(.+)$/)
			message = match && match[3]															
			if message =~ /^!hello/						# If recieves "!hello"					// COMMANDS // COMMANDS // COMMANDS
				user = match[1]							# Get Username
				user = user.capitalize
				log.info "[Command] #{user}: !hello"	# Save it in "log.txt"
				puts "[Command] #{user}: !hello"		# In terminal it writes "[Command] USER: !hello"
				socket.puts(send + "Hi #{user} !")		# Send back "Hi USER!"
			elsif message =~ /^!ping/
				user = match[1]									
				user = user.capitalize
				log.info "[Command] #{user}: !ping"
				puts "[Command] #{user}: !ping"
				socket.puts(send + "Ping! #{user} ")
			elsif message !=~ /a1b2c3/						# Add you own commands ABOVE this one [elsif message !=~ /a1b2c3/] (just copy the other commands) ^^
				user = match[1]								
				user = user.capitalize						# Don't delete this command
				log.info "[Message] #{user}: #{message}"	# If NOT message = "a1b2c3" show the message 
				puts "[Message] #{user}: #{message}"		# ^^ No one is going to type that, so it just shows the message and who sent it
			end												# In terminal it writes "[Message] USER: message"
		end
	end
end

# Loop for terminal commands
while (running) do
	command = gets.chomp
	if command == "quit"						# If command = "quit"
		log.info "Command Executed: quit"		# Save "Command Executed: quit" in "log.txt"
		socket.puts("PART #{CHANNEL}")			# Disconnects from the channel
		running = false							# Set "running" to false = loop stops = script stops = bot stops
	elsif command == "msg"
		print "Message: "						# Here you can send a custom message by typing "msg"
		msg = gets.chomp
		socket.puts(send + msg)					# Sends message
		puts "Message Sent: #{msg}"				# Shows it in terminal
		log.info "Message Sent: #{msg}"			# Save it to "log.txt"
	elsif command == "clear"
		system "clear" or system "cls"
		log.info "Cleared Terminal"				# Save it to "log.txt"
		puts "Cleared Terminal"
		puts "Type \"quit\" to stop the bot"
		puts "Type \"clear\" to clear terminal"
		puts "Type \"quit\" to send a custom message"
	else										# Add you own commands ABOVE this (else function) (just copy the other commands) ^^^^^^^^^^^^^^
		log.info "< #{command}"	
	end
end

puts "Disconnected"