#!/bin/env ruby
require 'pry'
input = File.readlines('./input').map(&:strip)

input.map! { |line| line.split('->') }
wires = input.to_h { |pair| [pair[1].strip.to_sym, nil] }

input.cycle.with_index do |line, _i|
  instruction = line.dup
  instruction[1].strip!
  instruction[0] = instruction[0].split(' ')
  instruction[0].map! do |item|
    if wires.has_key?(item.to_sym)
      wires[item.to_sym]
    elsif item =~ /AND|OR|NOT|LSHIFT|RSHIFT/
      item
    else
      item.to_i
    end
  end
  next if instruction[0].include?(nil)

  if instruction[0].include?('AND')
    wires[instruction[1].to_sym] = instruction[0][0] & instruction[0][2]
    input.delete(instruction)
  elsif instruction[0].include?('OR')
    wires[instruction[1].to_sym] = instruction[0][0] | instruction[0][2]
    input.delete(instruction)
  elsif instruction[0].include?('NOT')
    wires[instruction[1].to_sym] = instruction[0][1] ^ 65_535
    input.delete(instruction)
  elsif instruction[0].include?('LSHIFT')
    wires[instruction[1].to_sym] = instruction[0][0] << instruction[0][2]
    input.delete(instruction)
  elsif instruction[0].include?('RSHIFT')
    wires[instruction[1].to_sym] = instruction[0][0] >> instruction[0][2]
    input.delete(instruction)
  else
    wires[instruction[1].to_sym] = instruction[0][0]
  end
  input.delete(line)
  # break if i > 1000
end

puts "Part 1 Solution: #{wires[:a]}"

# Part 2, getting sloppy again :)
b = wires[:a]
wires.transform_values! { |_v| nil }
wires[:b] = b
pp wires[:b]
input = File.readlines('./input').map(&:strip)
input.map! { |line| line.split('->') }

input.cycle.with_index do |line, _i|
  instruction = line.dup
  instruction[1].strip!
  instruction[0] = instruction[0].split(' ')
  instruction[0].map! do |item|
    if wires.has_key?(item.to_sym)
      wires[item.to_sym]
    elsif item =~ /AND|OR|NOT|LSHIFT|RSHIFT/
      item
    else
      item.to_i
    end
  end
  next if instruction[0].include?(nil)

  if instruction[0].include?('AND')
    wires[instruction[1].to_sym] = instruction[0][0] & instruction[0][2]
    input.delete(instruction)
  elsif instruction[0].include?('OR')
    wires[instruction[1].to_sym] = instruction[0][0] | instruction[0][2]
    input.delete(instruction)
  elsif instruction[0].include?('NOT')
    wires[instruction[1].to_sym] = instruction[0][1] ^ 65_535
    input.delete(instruction)
  elsif instruction[0].include?('LSHIFT')
    wires[instruction[1].to_sym] = instruction[0][0] << instruction[0][2]
    input.delete(instruction)
  elsif instruction[0].include?('RSHIFT')
    wires[instruction[1].to_sym] = instruction[0][0] >> instruction[0][2]
    input.delete(instruction)
  else
    wires[instruction[1].to_sym] = instruction[0][0]
  end
  input.delete(line)
  # break if i > 1000
end

puts "Part 2 Solution: #{wires[:a]}"