[RUBY]Server/Client | Command Client to start Using function - ruby-on-rails

Question

So I am working on some stupid simulation of mining cryptocoins - just for fun.
But I have run into an issue I want to command the client to start using a function but I am not sure how to do it, my code is bellow for Server.rb and Client.rb
Client
require 'socket'
s = TCPSocket.new 'localhost', 2626
while line = s.gets
puts line
end
s.close
Server.rb
#!/bin/ruby
require "socket"
require 'securerandom'
PORT = 2626
server_pool = TCPServer.open(PORT)
sndc_block_time = 200 # Size of block
sndc_block_time = 10 # Time to brake block 1,1 out of 200, 200
sndc_coin_blocks= 126^2 # Ammount of available blocks
sndc_coin_balance = 0
sub_blocks = 0 # Sub blocks user wants to mine
addr = SecureRandom.hex # generate a random hexadecimal address
# Notify message shown when user registers a new address
disclaimer = "Welcome to the SendCoin Network!
A new address has been registered and saved
to your computer desktop!"
def handle_connection(client)
puts "New client! #{client} \n\n"
end
puts "Listening on #{PORT}. Press CTRL+C to cancel."
while client = server_pool.accept
if Thread.new { handle_connection(client) }
if sndc_coin_blocks < 126^2 / 4
sndc_coin_blocks + 126^2 / 4 # Add a quarter of the original size
end
if Dir['../MyAddress/*.addr'].any? == true
# Statrs Mining
client.puts "Starting to mine.."
sleep(5)
client.puts "Current blocks: " + sndc_coin_blocks.to_s
client.puts "Block Size: " + sndc_coin_balance.to_s
client.puts "Approximate time to mine 1 sub-block: " + sndc_block_time.to_s
client.puts "Searching for block.."
sleep(3)
if sndc_block_time != 10
sndc_block_time = 10
end
client.puts "Started mining..."
elsif Dir['../addresses/*.addr'].any? == false
File.open("../addresses/"+addr+".addr", "w") do |f| # Create file
f.write(sndc_coin_balance.to_s)
end
client.puts "New address generated: " + addr.to_s + " , you may realunch the app now and enter your address!"
# Start Mining
puts "> File 'address.addr' has been generated for#{client}"
end
end
end
So essentially I want after this line of code:
client.puts "Started mining..."
.. to command the client to (client.rb) to start using a function.