class Xcodeproj::Workspace::FileReference

def self.from_node(xml_node)
  type, path = xml_node.attribute('location').value.split(':', 2)
  new(path, type)
end

def ==(other)
  path == other.path && type == other.type
end

def absolute_path(workspace_dir_path)
  workspace_dir_path = workspace_dir_path.to_s
  case type
  when 'group'
    File.expand_path(File.join(workspace_dir_path, path))
  when 'container'
    File.expand_path(File.join(workspace_dir_path, path))
  when 'absolute'
    File.expand_path(path)
  when 'developer'
    raise 'Developer workspace file reference type is not yet ' \
      "#{self}"
  else
    raise "Unsupported workspace file reference type #{type}"
  end
end

def hash
  [path, type].hash
end

def initialize(path, type = 'group')
  @path = path.to_s
  @type = type.to_s
end

def to_node
  REXML::Element.new('FileRef').tap do |element|
    element.add_attribute('location', "#{type}:#{path}")
  end
end