class Avo::Reloader

def config
  Rails.application.config
end

def directories
  dirs = {}
  # watch the lib directory in Avo development
  if reload_lib?
    dirs[Avo::Engine.root.join("lib", "avo").to_s] = ["rb"]
  end
  dirs
end

def files
  # we want to watch some files no matter what
  paths = [
    Rails.root.join("config", "initializers", "avo.rb"),
  ]
  # we want to watch some files only in Avo development
  if reload_lib?
    paths += []
  end
  paths
end

def reload!
  # reload all files declared in paths
  files.each do |file|
    if File.exist? file
      load file
    end
  end
  # reload all files declared in each directory
  directories.keys.each do |dir|
    Dir.glob("#{dir}/**/*.rb".to_s).each do |file|
      if File.exist? file
        load file
      end
    end
  end
end

def reload_lib?
  Avo::IN_DEVELOPMENT || ENV["AVO_RELOAD_LIB_DIR"]
end

def updater
  @updater ||= config.file_watcher.new(files, directories) { reload! }
end