require 'yaml'
require 'soap/header/simplehandler'

module AdWords

    class HeaderHandler < SOAP::Header::SimpleHandler
        def initialize(tag, value)
            super(XSD::QName.new(nil, tag))
            @tag = tag
            @value = value
        end
    
        #the initial handler from the sample was wrong, it generated 2 level of tags
        def on_simple_outbound
            @value
        end
    end
    
    class AdWordsCredentials
        attr_reader :handlers
        
        def getDefaults()
            prefs = YAML::load( File.open("#{ENV['HOME']}/.adwords-api.yaml", 'r'))
            credentials = prefs['credentials']
        end
    
        def initialize(*parm)
            @handlers = []
            if parm[0] 
                credentials = parm[0]
            else
                credentials = getDefaults()
            end
            credentials.each {|key, value| @handlers << HeaderHandler.new(key, value)}
        end
    end
end