module Onoma

# File lib/onoma.rb, line 106
def [](index)
  set[index]
end

# File lib/onoma.rb, line 100
def all
  set.nomenclatures
end

# File lib/onoma.rb, line 50
def database_path
  root.join('db')
end

# File lib/onoma.rb, line 134
def each(&block)
  set.each(&block)
end

# File lib/onoma.rb, line 42
def escape_key(key)
  key.to_s.gsub('.', '-').to_sym
end

# File lib/onoma.rb, line 111
def find(*args)
  args.extract_options!
  name = args.shift
  nomenclature = find_or_initialize(name)
  if args.empty?
    return nomenclature
  elsif args.size == 1
    return nomenclature.find(args.shift) if nomenclature
  end

  nil
end

# File lib/onoma.rb, line 124
def find_or_initialize(name)
  set[name] || set.load_data_from_xml(name)
end

# File lib/onoma.rb, line 129
def load!
  @@set = NomenclatureSet.load_file(reference_path)
end

# File lib/onoma.rb, line 142
def load_locales
  I18n.load_path.concat(Dir.glob(Onoma.root.join('config', 'locales', '*.yml')))
end

# File lib/onoma.rb, line 81
def migrations
  Dir.glob(migrations_path.join('*.xml')).sort.collect do |f|
    Onoma::Migration::Base.parse(Pathname.new(f))
  end
end

# File lib/onoma.rb, line 54
def migrations_path
  database_path.join('migrate')
end

# File lib/onoma.rb, line 88
def missing_migrations
  last_version = reference_version
  migrations.select do |m|
    m.number > last_version
  end
end

# File lib/onoma.rb, line 96
def names
  set.nomenclature_names
end

# File lib/onoma.rb, line 69
def reference_document
  unless @document
    f = File.open(reference_path, 'rb')
    @document = Nokogiri::XML(f) do |config|
      config.strict.nonet.noblanks.noent
    end
    f.close
  end
  @document
end

# File lib/onoma.rb, line 58
def reference_path
  database_path.join('reference.xml')
end

# File lib/onoma.rb, line 63
def reference_version
  return 0 unless reference_path.exist?

  reference_document.root['version'].to_i
end

# File lib/onoma.rb, line 46
def root
  Pathname.new(__FILE__).dirname.dirname
end

# File lib/onoma.rb, line 138
def set
  @@set ||= NomenclatureSet.new
end