class ReactOnRails::Generators::DevTestsGenerator

def add_test_related_gems_to_gemfile
  gem("rspec-rails", group: :test)
  gem("chromedriver-helper", group: :test)
  gem("coveralls", require: false)
end

def add_yarn_relative_install_script_in_package_json
  package_json = File.join(destination_root, "package.json")
  contents = JSON.parse(File.read(package_json))
  contents["scripts"] ||= {}
  contents["scripts"]["postinstall"] = "yalc link react-on-rails"
  File.open(package_json, "w+") { |f| f.puts JSON.pretty_generate(contents) }
end

def copy_rspec_files
  %w[.eslintrc
     spec/spec_helper.rb
     spec/rails_helper.rb
     spec/simplecov_helper.rb
     .rspec].each { |file| copy_file(file) }
end

def copy_tests
  %w[spec/system/hello_world_spec.rb].each { |file| copy_file(file) }
end

def replace_prerender_if_server_rendering
  return unless options.example_server_rendering
  hello_world_index = File.join(destination_root, "app", "views", "hello_world", "index.html.erb")
  hello_world_contents = File.read(hello_world_index)
  new_hello_world_contents = hello_world_contents.gsub("prerender: false",
                                                       "prerender: true")
  File.open(hello_world_index, "w+") { |f| f.puts new_hello_world_contents }
end