module PluoaMapper

# File lib/pluoa-mapper.rb, line 2
def get_mapping(page, field_name, index = '')
    path = ENV['PAGES_MAPPING_PATH']
    raise "You need include your path in your env.rb using ENV['PAGES_MAPPING_PATH']" if path.nil?
    page_mapped = YAML.load_file(path + format_page_to_file(page) + '.yml')
    field_mapped = page_mapped[field_name]
    raise "The field name #{field_name} was not mapped in #{page}" if field_name.nil?
    return field_mapped + build_index(index)
rescue
    puts "There is no page called #{page} in path #{path} "
end

# File lib/pluoa-mapper.rb, line 15
def build_index(_index)
    _index.to_s.empty? ? '' : " index:#{_index} "
end

# File lib/pluoa-mapper.rb, line 19
def format_page_to_file(page)
    unless page.nil?
        page = page.class == String ? page : page.class.to_s
        names = page.to_s.scan(/([A-Z][a-z]+)/)
        file_name = ''
        names.each_with_index do |_name, _index|
            file_name += _index > 0 ? '_' + _name[0] : _name[0]
        end
        file_name.downcase
    end
end