module Yaqut

# File lib/yaqut.rb, line 21
def self.database
  @database ||= YAML::load_file("config/languages.yml")
end

# File lib/yaqut.rb, line 8
def self.search(any_field=nil, **search_params)
  raise "Specify at least one search parameter" if any_field.nil? && (search_params.none? || search_params.all? { |param| param.nil? })
  raise "Cannot specify specific fields and a general search term" if any_field && search_params.any?
  # Case changes can be expensive, only do them once
  any_field = any_field.downcase if any_field
  search_params.each{ |key, str| search_params[key] = str.downcase }
  # Not particularly efficient, but there are only ~200
  database.find { |language|
    (!any_field.nil? && ALL_FIELDS.any? { |field| language.send(field) == any_field }) ||
    (search_params.any? && search_params.all? { |field, param| language.send(field) == param })
  }
end