require "date"

require "erb"

require "net/http"

require "open-uri"

require "fileutils"

latest = Dir["./lib/advent*.rb"].map { |p| p.match(/\d{2}/)&.[](0)&.to_i }.compact.max || 0

desc "create class and spec file for DAY"

today = Date.today

day = ENV["DAY"].nil? ? next_advent_number : ENV["DAY"].to_i

year = ENV["YEAR"].nil? ? today.year : ENV["YEAR"].to_i

raise "invalid DAY" unless day.between?(1, 31)

raise "invalid YEAR" unless year.between?(2015, today.year)

html = Net::HTTP.get(URI.parse("https://adventofcode.com/#{year}/day/#{day}"))

title = html.match(%r{<h2>--- Day \d+: ([A-Za-z0-9\s-]+) ---</h2>}) { |m| m[1] }.to_s

formatted_title = title.tr("-", "").tr(" ", "").gsub(/(.)([A-Z])/, '\1_\2').downcase

formatted_day = day.to_s.rjust(2, "0")

basename = "advent_#{formatted_day}_#{formatted_title}"

templates = [

{ template: "./templates/klass.rb.erb", path: "./lib/#{basename}.rb" },

{ template: "./templates/spec.rb.erb", path: "./spec/#{basename}_spec.rb" }

]

templates.each do |h|

path = h[:path]

next if File.exist?(path)

erb = ERB.new(File.read(h[:template]))

rendered = erb.result_with_hash(require_path: basename, day_number: formatted_day)

puts "creating #{path}"

puts rendered.inspect

puts "----------------"

File.write(path, rendered)

end

puzzle_inputs = [

"advent-#{formatted_day}-sample.txt",

"advent-#{formatted_day}.txt"

]

puzzle_inputs.each do |name|

FileUtils.touch("./spec/fixtures/#{name}")

end

require "spec_helper"

require "<%= require_path %>"

describe "Puzzle" do

context "with sample data" do

let(:data) do

File.readlines("./spec/fixtures/advent-<%= day_number %>-sample.txt").map { |l| l.chomp.chars }

end

end

context "with puzzle data" do

let(:data) do

File.readlines("./spec/fixtures/advent-<%= day_number %>.txt").map { |l| l.chomp.chars }

end

end

end