module Evri
  module RPX
    class User
      class InvalidUserJsonError < StandardError; end

      # Returns a Credentials object for this user, or nil.
      attr_reader :credentials

      # Returns the raw JSON returned by RPX, in case you want it. 
      attr_reader :json
      alias :raw :json

      def initialize(json)
        if json.nil? or !json['profile']
          raise InvalidUserJsonError,
                'The JSON passed in is invalid!'
        end

        @json = json

        if @json['accessCredentials']
          @credentials = Credentials.new(@json['accessCredentials'])
        end
      end

      # Returns the person's full name (aka David Balatero)
      def name
        @json['profile']['name']['formatted'] rescue nil
      end

      # Returns a name that should be displayed for this user.
      def display_name
        @json['profile']['displayName'] rescue nil
      end

      # Returns a username for this user.
      def username
        @json['profile']['preferredUsername'] rescue nil
      end

      # Returns a unique identifier for this user.
      def identifier
        @json['profile']['identifier'] rescue nil
      end

      # Returns the primary key for this user, if they have
      # been mapped already.
      def primary_key
        @json['profile']['primaryKey'] rescue nil
      end

      # Returns a photo URL for a user if they have one.
      def photo
        @json['profile']['photo'] rescue nil
      end

      # Returns a URL to a person's profile on the 3rd-party site.
      def profile_url
        @json['profile']['url'] rescue nil
      end

      # Returns a user's email.
      def email
        @json['profile']['email'] rescue nil
      end

      # Returns the provider name for this user, aka "Twitter", "Google".
      # Also, see convenience methods such as #google?, #twitter?
      def provider_name
        @json['profile']['providerName'] rescue nil
      end

      # Returns true if this is a Twitter login.
      def twitter?
        provider_name == 'Twitter'
      end

      # Returns true if this is a Google login.
      def google?
        provider_name == 'Google'
      end

      # Returns true if this is a Facebook login.
      def facebook?
        provider_name == 'Facebook'
      end

      # Returns true if this is a Yahoo! login.
      def yahoo?
        provider_name == 'Yahoo!'
      end

      # Returns true if this is a Windows Live login.
      def windows_live?
        provider_name == 'Windows Live'
      end
    end
  end
end