ifad/colore-client

module Colore
  module Errors
    class ColoreUnavailable < StandardError
      def initialize
        super "The Colore storage system is unavailable"
      end
    end
    class APIError < StandardError
      attr_accessor :http_code
      attr_accessor :response_body
      attr_accessor :rsp_backtrace
      def initialize http_code, message, rsp_backtrace=nil, response_body=nil
        super message
        @http_code = http_code
        @response_body = response_body
        @rsp_backtrace = rsp_backtrace
      end
    end

    class ClientError < APIError; end
    class ServerError < APIError; end

    def self.from hash, body
      if hash.nil?
        ServerError.new( 0, 'Unknown error (see response_body)', nil, body )
      else
        case hash['status']
          when 400..409
            ClientError.new(hash['status'].to_i, hash['description'], hash['backtrace'], body)
          else
            ServerError.new(hash['status'].to_i, hash['description'], hash['backtrace'], body)
        end
      end
    end
  end
end