omniauth_smartsheet

require 'omniauth-oauth2'

module OmniAuth
  module Strategies
    class Smartsheet < OmniAuth::Strategies::OAuth2
      # Give your strategy a name.
      option :name, "smartsheet"

      # This is where you pass the options you would pass when
      # initializing your consumer from the OAuth gem.
      option :client_options, {
        :site => "https://api.smartsheet.com/1.1",
        :authorize_url => "https://www.smartsheet.com/b/authorize",
        :token_url => "https://api.smartsheet.com/1.1/token"
      }

      # These are called after authentication has succeeded. If
      # possible, you should try to set the UID without making
      # additional calls (if the user id is returned with the token
      # or as a URI parameter). This may not be possible with all
      # providers.
      uid{ raw_info['id'] }

      info do
        {
          :first_name => raw_info['firstName'],
          :last_name => raw_info['lastName'],
          :email => raw_info['email']
        }
      end

      extra do
        {
          'raw_info' => raw_info
        }
      end

      def raw_info
        @raw_info ||= access_token.get('user/me').parsed
      end
       
      protected
       
      def build_access_token
        verifier = request.params['code']
        params = token_params.to_hash(:symbolize_keys => true).merge(:hash => Digest::SHA256.hexdigest(options.client_secret+'|'+verifier))
        client.auth_code.get_token(verifier, {:redirect_uri => callback_url}.merge(params), deep_symbolize(options.auth_token_params))
      end
      
    end
  end
end