class Protocol::HTTP::Cookie

def self.parse(string)
	head, *directives = string.split(/\s*;\s*/)
	
	key, value = head.split("=", 2)
	directives = self.parse_directives(directives)
	
	self.new(
		URL.unescape(key),
		URL.unescape(value),
		directives,
	)
end

def self.parse_directives(strings)
	strings.collect do |string|
		key, value = string.split("=", 2)
		[key, value || true]
	end.to_h
end

def encoded_name
	URL.escape(@name)
end

def encoded_value
	URL.escape(@value)
end

def initialize(name, value, directives)
	@name = name
	@value = value
	@directives = directives
end

def to_s
	buffer = String.new.b
	
	buffer << encoded_name << "=" << encoded_value
	
	if @directives
		@directives.collect do |key, value|
			buffer << ";"
			
			case value
			when String
				buffer << key << "=" << value
			when TrueClass
				buffer << key
			end
		end
	end
	
	return buffer
end