class ChefCLI::Policyfile::PolicyGroupRevIDMap

def each
  revision_ids_by_group.each do |group_name, rev_id|
    yield group_name, rev_id
  end
end

def empty?
  policy_group_names.empty?
end

def format_revision_ids
  revision_ids_by_group.inject({}) do |map, (group_name, rev_id)|
    map[group_name] = yield rev_id
    map
  end
end

def initialize(policy_name, revision_ids_by_group)
  @policy_name = policy_name
  @revision_ids_by_group = revision_ids_by_group
end

def max_group_name_length
  policy_group_names.map(&:size).max
end

def policy_group_names
  revision_ids_by_group.keys
end

def unique_revision_ids
  revision_ids_by_group.values.uniq
end