#!/usr/bin/env ruby

require "ffxcodec"
require "pp"

a_val = 1234567890
b_val = 4
a_size = 40
b_size = 24
key = "2b7e151628aed2a6abf7158809cf4f3c"
tweak = "9876543210"

ffx = FFXCodec.new(a_size, b_size)  # divide 64-bit int into a 40 and 24-bit int

unencrypted_encoded = ffx.encode(a_val, b_val)
unencrypted_decoded = ffx.decode(unencrypted_encoded)

ffx.setup_encryption(key, tweak)

encrypted_encoded = ffx.encode(a_val, b_val)
encrypted_decoded = ffx.decode(encrypted_encoded)

puts "Input A: #{a_val}"
puts "Input B: #{b_val}"
puts "Input A bit allocation: #{a_size}"
puts "Input B bit allocation: #{b_size}"
puts "Encoded Size (Type): #{ffx.size} bytes (#{ffx.bit_length}-bit unsigned integer)"
puts ""
puts "Without Encryption:"
puts "- Encoded: #{unencrypted_encoded}"
puts "- Decoded: #{unencrypted_decoded.inspect}"
puts ""
puts "With Encryption: (Key: #{key}, Tweak: #{tweak})"
puts "- Encoded: #{encrypted_encoded}"
puts "- Decoded: #{encrypted_decoded.inspect}"