require 'base64'
require 'cgi'

class OEHClient::Interaction::Optimization

	# HASH keys based on the response data
	OPT_RESPONSE_NAME			= "name"
	OPT_RESPONSE_ASSET			= "asset"
	OPT_RESPONSE_CONTENT		= "content"
	OPT_RESPONSE_CONTENT_URL	= "contentUrl"
	OPT_RESPONSE_MIME_TYPE 		= "mimeType"
	OPT_RESPONSE_PROPOSITION 	= "proposition"
	OPT_RESPONSE_RESPONSES		= "responses"

	# Localized attributes equivalent to the returned Hash object in the response
	attr_accessor 	:name,							# The name of the action
					:content,						# The decoded content of the asset
					:content_url,					# The URL to the referential asset
					:mime_type,						# The MIME Type of the asset based on the OEH Configuration
					:proposition,					# The code of the proposition, related to the optimization
					:responses,						# The collection of responses valid for this optmization
					:interaction 					# The parent interaction object

	# ---- Class Methods 

	def self.create(interaction, properties={})

		one_asset = properties[OPT_RESPONSE_ASSET]

		# create a new instance of the OEHClient::Interaction::Optimization class
		optimization_instance = OEHClient::Interaction::Optimization.new()

		# assign all data attributes based on the properties object that is passed
		optimization_instance.name 			= properties[OPT_RESPONSE_NAME] 						if (properties.has_key?(OPT_RESPONSE_NAME))
		optimization_instance.proposition	= properties[OPT_RESPONSE_PROPOSITION]					if (properties.has_key?(OPT_RESPONSE_PROPOSITION))
		# map the asset data to the class instance variables
		optimization_instance.content		= CGI.unescapeHTML(one_asset[OPT_RESPONSE_CONTENT])		if (one_asset.has_key?(OPT_RESPONSE_CONTENT))
		optimization_instance.content_url	= one_asset[OPT_RESPONSE_CONTENT_URL] 					if (one_asset.has_key?(OPT_RESPONSE_CONTENT_URL))
		optimization_instance.mime_type		= one_asset[OPT_RESPONSE_MIME_TYPE] 					if (one_asset.has_key?(OPT_RESPONSE_MIME_TYPE))
		# map each of the respones to the response object
		optimization_instance.responses ||= Array.new
		one_asset[OPT_RESPONSE_RESPONSES].each do | asset_response |
			optimization_instance.responses << OEHClient::Interaction::Response.create(optimization_instance, asset_response)
		end
		# set the parent interaction object
		optimization_instance.interaction = interaction
		#return the new instance of the optimzation class
		optimization_instance

	end

	# ---- Instance Methods 


end