module Truemail

# File lib/truemail.rb, line 11
def configuration(&block)
  @configuration ||= begin
    return unless block
    configuration = Truemail::Configuration.new(&block)
    raise_unless(configuration.complete?, Truemail::INCOMPLETE_CONFIG)
    configuration
  end
end

# File lib/truemail.rb, line 20
def configure(&block)
  configuration(&block)
end

# File lib/truemail.rb, line 38
def host_audit(custom_configuration: nil)
  Truemail::Auditor.new(configuration: determine_configuration(custom_configuration)).run
end

# File lib/truemail.rb, line 24
def reset_configuration!
  @configuration = nil
end

# File lib/truemail.rb, line 33
def valid?(email, **options)
  check_argument_type(email)
  validate(email, **options).result.valid?
end

# File lib/truemail.rb, line 28
def validate(email, custom_configuration: nil, **options)
  check_argument_type(email)
  Truemail::Validator.new(email, configuration: determine_configuration(custom_configuration), **options).run
end

# File lib/truemail.rb, line 48
def check_argument_type(argument)
  raise_unless(argument.is_a?(::String), Truemail::INVALID_TYPE, Truemail::TypeError)
end

# File lib/truemail.rb, line 52
def determine_configuration(custom_configuration)
  current_configuration = custom_configuration || configuration
  raise_unless(current_configuration, Truemail::NOT_CONFIGURED)
  raise_unless(current_configuration.complete?, Truemail::INCOMPLETE_CONFIG)
  current_configuration.dup.freeze
end

# File lib/truemail.rb, line 44
def raise_unless(condition, message, error_class = Truemail::ConfigurationError)
  raise error_class, message unless condition
end