module CommonMethods

# File lib/generators/rename_rails/shared/common_methods.rb, line 23
def app_parent
  if Rails::VERSION::MAJOR >= 6
    Rails.application.class.module_parent.name
  else
    Rails.application.class.parent.name
  end
end

# File lib/generators/rename_rails/shared/common_methods.rb, line 56
def apply_new_module_name
  in_root do
    puts "Search and replace module in..."

    # Search and replace module in to file
    Dir["*", "config/**/**/*.rb", ".{rvmrc}"].each do |file|
      # file = File.join(Dir.pwd, file)
      replace_into_file(file, /(#{@old_module_name}*)/m, @new_module_name)
    end

    # Rename session key
    replace_into_file("config/initializers/session_store.rb", /(('|")_.*_session('|"))/i, "'_#{@new_key}_session'")
    # Rename database
    replace_into_file("config/database.yml", /#{@old_module_name.underscore}/i, @new_name.underscore)

    # Update package.json name entry
    old_package_name_regex = /\Wname\W *: *\W(?<name>[-_\p{Alnum}]+)\W *, */i
    new_package_name = %("name":"#{@new_module_name.underscore}",)
    replace_into_file("package.json", old_package_name_regex, new_package_name)

    # Update app/views/layouts/application.html.erb title
    replace_into_file("app/views/layouts/application.html.erb", "<title>#{@old_module_name}</title>",
                      "<title>#{@new_module_name}</title>")

    # Update channel prefix config/cable.yml
    replace_into_file("config/cable.yml", "#{@old_module_name.underscore}_production",
                      "#{@new_module_name.underscore}_production")

    # Update config/environments/production.rb  # config.active_job.queue_name_prefix = "(myapp)_production"
    replace_into_file("config/environments/production.rb", "#{@old_module_name.underscore}_production",
                      "#{@new_module_name.underscore}_production")

    # config/database.yml capitalize environment variable
    replace_into_file("config/database.yml", "ENV['#{@new_module_name.underscore}_DATABASE_PASSWORD']",
                      "ENV['#{@new_module_name.underscore.upcase}_DATABASE_PASSWORD']")
  end
end

# File lib/generators/rename_rails/shared/common_methods.rb, line 95
def change_app_directory
  rename_references
  rename_directory
end

# File lib/generators/rename_rails/shared/common_methods.rb, line 16
def perform
  prepare_app_vars
  validate_name_and_path?
  apply_new_module_name
  change_app_directory
end

# File lib/generators/rename_rails/shared/common_methods.rb, line 31
def prepare_app_vars
  @new_key         = new_name.gsub(/\W/, "_")
  @old_module_name = app_parent
  @new_module_name = @new_key.squeeze("_").camelize
  @new_dir         = new_name.gsub(%r{[&%*@()!{}\[\]'\\/"]+}, "")
  @new_path        = Rails.root.to_s.split("/")[0...-1].push(@new_dir).join("/")
end

# File lib/generators/rename_rails/shared/common_methods.rb, line 39
def validate_name_and_path?
  if new_name.blank?
    raise Thor::Error, "[Error] Application name can't be blank."
  elsif /^\d/.match?(new_name)
    raise Thor::Error, "[Error] Please give a name which does not start with numbers."
  elsif @new_module_name.empty?
    raise Thor::Error, "[Error] Please enter at least one alphabet."
  elsif reserved_names.include?(@new_module_name.downcase)
    raise Thor::Error, "[Error] Please give a name which does not match any of the reserved Rails keywords."
  elsif Object.const_defined?(@new_module_name)
    raise Thor::Error, "[Error] Constant #{@new_module_name} is already in use, please choose another name."
  elsif File.exist?(@new_path)
    raise Thor::Error, "[Error] Already in use, please choose another name."
  end
end

# File lib/generators/rename_rails/shared/common_methods.rb, line 120
def rename_directory
  print "Renaming directory..."

  begin
    # FileUtils.mv Dir.pwd, app_path
    File.rename(Rails.root.to_s, @new_path)
    puts "Done!"
    puts "New application path is '#{@new_path}'"
  rescue StandardError => e
    puts "Error:#{e.inspect}"
  end
end

# File lib/generators/rename_rails/shared/common_methods.rb, line 106
def rename_references
  puts "Renaming references..."
  old_basename = File.basename(Dir.getwd)

  in_root do
    Dir.glob(".idea/*", File::FNM_DOTMATCH).each do |file|
      replace_into_file(file, old_basename, @new_dir)
    end

    gem_set_file = ".ruby-gemset"
    replace_into_file(gem_set_file, old_basename, @new_dir) if File.exist?(gem_set_file)
  end
end

# File lib/generators/rename_rails/shared/common_methods.rb, line 133
def replace_into_file(file, search_exp, replace)
  return if File.directory?(file)

  begin
    gsub_file file, search_exp, replace
  rescue StandardError => e
    puts "Error: #{e.message}"
  end
end

# File lib/generators/rename_rails/shared/common_methods.rb, line 102
def reserved_names
  @reserved_names = %w[application destroy benchmarker profiler plugin runner test]
end