module Bearcat
  class Client < Footrest::Client
    module OAuth2

      def auth_redirect_url(client_id, redirect_uri, scopes = nil, response_type='code')
        fullpath('login/oauth2/auth')
        uri = URI.parse(fullpath('login/oauth2/auth'))
        query = [
          ['client_id', client_id],
          ['redirect_uri', redirect_uri],
          ['response_type', response_type]
        ]
        query << ['scopes', scopes] if scopes
        uri.query = URI.encode_www_form(query)
        uri.to_s
      end

      def retrieve_token(client_id, redirect_url, client_secret, code, grant_type = 'authorization_code')
        token_params = {
          client_id: client_id,
          redirect_url: redirect_url,
          client_secret: client_secret,
          grant_type: grant_type
        }
        if grant_type == 'authorization_code'
          token_params[:code] = code
        elsif grant_type == 'refresh_token'
          token_params[:refresh_token] = code
        end
        body = post('/login/oauth2/token', token_params)
        config[:token] = body['access_token']
        set_connection(config)
        body
      end

    end
  end
end