# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  gem "rails", github: "rails/rails", require: "rails/all"
  gem "benchmark-ips"
  gem "benchmark-memory", require: "benchmark/memory"
end

module ActionView
  class Digestor
    class << self
      def fast_digest(name:, format: nil, finder:, dependencies: nil)
        if dependencies.nil? || dependencies.empty?
          cache_key = "#{name}.#{format}"
        else
          dependencies_suffix = dependencies.flatten.tap(&:compact!).join(".")
          cache_key = "#{name}.#{format}.#{dependencies_suffix}"
        end

        finder.digest_cache[cache_key] || @@digest_mutex.synchronize do
          finder.digest_cache.fetch(cache_key) do
            root = tree(name, finder, name.include?("/_"))

            dependencies.each do |injected_dep|
              root.children << Injected.new(injected_dep, nil, nil)
            end if dependencies

            finder.digest_cache[cache_key] = root.digest(finder)
          end
        end
      end
    end
  end
end

finder = ActionView::LookupContext.new([])
dependencies = %w[fridge phone tv microwave]

Benchmark.ips do |x|
  x.report("digest")      { ActionView::Digestor.digest(name: "comments/_comment", format: :html, finder: finder, dependencies: dependencies) }
  x.report("fast_digest") { ActionView::Digestor.fast_digest(name: "comments/_comment", format: :html, finder: finder, dependencies: dependencies) }
  x.compare!
end

Benchmark.memory do |x|
  x.report("digest")      { ActionView::Digestor.digest(name: "comments/_comment", format: :html, finder: finder, dependencies: dependencies) }
  x.report("fast_digest") { ActionView::Digestor.fast_digest(name: "comments/_comment", format: :html, finder: finder, dependencies: dependencies) }
  x.compare!
end