class ChefSpec::Matchers::SubscribesMatcher

def before
  @before = true
  self
end

def delayed
  @delayed = true
  self
end

def description
  @instance.description
end

def failure_message
  @instance.failure_message
end

def failure_message_when_negated
  @instance.failure_message_when_negated
end

def immediately
  @immediately = true
  self
end

def initialize(signature)
  signature.match(/^([^\[]*)\[(.*)\]$/)
  @expected_resource_type = $1
  @expected_resource_name = $2
end

def matches?(resource)
  @instance = ChefSpec::Matchers::NotificationsMatcher.new(resource.to_s)
  if @action
    @instance.to(@action)
  end
  if @immediately
    @instance.immediately
  end
  if @delayed
    @instance.delayed
  end
  if @before
    @instance.before
  end
  if resource
    runner   = resource.run_context.node.runner
    expected = runner.find_resource(@expected_resource_type, @expected_resource_name)
    @instance.matches?(expected)
  else
    @instance.matches?(nil)
  end
end

def on(action)
  @action = action
  self
end