class Geocoder::Configuration

def self.initialize
  instance.send(:initialize)
end

def self.set_defaults
  instance.set_defaults
end

def configure(options)
  Util.recursive_hash_merge(@data, options)
end

def initialize # :nodoc
  @data = Geocoder::ConfigurationHash.new
  set_defaults
end

def set_defaults
  # geocoding options
  @data[:timeout]      = 3           # geocoding service timeout (secs)
  @data[:lookup]       = :nominatim  # name of street address geocoding service (symbol)
  @data[:ip_lookup]    = :ipinfo_io  # name of IP address geocoding service (symbol)
  @data[:language]     = :en         # ISO-639 language code
  @data[:http_headers] = {}          # HTTP headers for lookup
  @data[:use_https]    = false       # use HTTPS for lookup requests? (if supported)
  @data[:http_proxy]   = nil         # HTTP proxy server (user:pass@host:port)
  @data[:https_proxy]  = nil         # HTTPS proxy server (user:pass@host:port)
  @data[:api_key]      = nil         # API key for geocoding service
  @data[:basic_auth]   = {}          # user and password for basic auth ({:user => "user", :password => "password"})
  @data[:logger]       = :kernel     # :kernel or Logger instance
  @data[:kernel_logger_level] = ::Logger::WARN # log level, if kernel logger is used
  # exceptions that should not be rescued by default
  # (if you want to implement custom error handling);
  # supports SocketError and Timeout::Error
  @data[:always_raise] = []
  # calculation options
  @data[:units]     = :mi      # :mi or :km
  @data[:distances] = :linear  # :linear or :spherical
  # Set the default values for the caching mechanism
  # By default, the cache keys will not expire as IP addresses and phyiscal
  # addresses will rarely change.
  @data[:cache]        = nil   # cache object (must respond to #[], #[]=, and optionally #keys)
  @data[:cache_prefix] = nil   # - DEPRECATED - prefix (string) to use for all cache keys
  @data[:cache_options] = {
    prefix: 'geocoder:',
    expiration: nil
  }
end