module Tufte

# File lib/tufte.rb, line 21
def self.build
  layout_template = File.read("templates/layout.html.erb")
  post_template = File.read("templates/post.html.erb")
  index_template = File.read("templates/index.html.erb")

  posts = Dir.glob("posts/*").map do |filename|
    Post.load(filename)
  end

  posts.each do |post|
    FileUtils.mkdir_p(post.output_directory)
    File.open(post.output_filename, "w") do |file|
      rendered_post = render(post_template, :@post => post)
      file.write(render(layout_template, :@content => rendered_post))
    end
    puts "Generated #{post.output_filename}"
  end

  File.open("index.html", "w") do |file|
    rendered_index = render(index_template, :@posts => posts)
    file.write(render(layout_template, :@content => rendered_index))
  end
  puts "Generated index.html"
end

# File lib/tufte.rb, line 16
def self.init
  scaffold_path = File.expand_path(File.join("..", "scaffold"), __dir__)
  FileUtils.cp_r(File.join(scaffold_path, "."), ".")
end

# File lib/tufte.rb, line 11
def self.render(erb, instance_variables, helpers = Helpers)
  binding = Binding.new(instance_variables: instance_variables, mod: helpers)
  ERB.new(erb).result(binding)
end