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module Swagger

  class Response
    require 'json'

    attr_accessor :raw

    def initialize(raw)
      self.raw = raw

      case self.code
      when 500..510 then raise(ServerError, self.error_message)
      when 299..426 then raise(ClientError, self.error_message)
      end
    end

    def code
      raw.code
    end
    
    # Account for error messages that take different forms...
    def error_message
      body['message']
    rescue
      body
    end

    # If body is JSON, parse it
    # Otherwise return raw string
    def body
      JSON.parse raw.body
    rescue
      raw.body
    end

    # `headers_hash` is a Typhoeus-specific extension of Hash, 
    # so simplify it back into a regular old Hash.
    def headers
      h = {}
      raw.headers_hash.each {|k,v| h[k] = v }
      h
    end

    # Extract the response format from the header hash
    # e.g. {'Content-Type' => 'application/json'}
    def format
      headers['Content-Type'].split("/").last.downcase
    end

    def json?
      format == 'json'
    end

    def xml?
      format == 'xml'
    end

    def pretty_body
      return unless body.present?
      case format
      when 'json' then JSON.pretty_generate(body).gsub(/\n/, '
')
      end
    end

    def pretty_headers
      JSON.pretty_generate(headers).gsub(/\n/, '
')
    end
    
  end
end