module Gingr
  module Configuration

    VALID_OPTIONS_KEYS = [
      :api_key,
      :adapter,
      :endpoint,
      :api_version,
      :company_app_name,
      :logging
    ].freeze

    # TODO: You may need to change this. Not all API's take a key. Adjust as necessary.
    # By default don't set the api key.
    DEFAULT_API_KEY = nil

    # Use the default Faraday adapter.
    DEFAULT_ADAPTER = Faraday.default_adapter

    # Company name is used to build the url for making api calls with Gingr in
    # the form https://#{company_app_name}.gingrapp.com
    # By default don't set the company name
    DEFAULT_COMPANY_APP_NAME = nil

    DEFAULT_LOGGING = false

    attr_accessor *VALID_OPTIONS_KEYS

    # Convenience method to allow configuration options to be set in a block
    def configure
      yield self
    end

    def options
      VALID_OPTIONS_KEYS.inject({}) do |option, key|
        option.merge!(key => send(key))
      end
    end

    # When this module is extended, reset all settings.
    def self.extended(base)
      base.reset
    end

    # TODO: Update this method with the final configurations provided above.
    # Reset all configuration settings to default values.
    def reset
      self.api_key          = DEFAULT_API_KEY
      self.adapter          = DEFAULT_ADAPTER
      self.logging          = DEFAULT_LOGGING
      self.company_app_name = DEFAULT_COMPANY_APP_NAME
    end
  end
end