class StatelyDB::KeyPath

def self.to_key_id(value)
  if value.is_a?(StatelyDB::UUID)
    value.to_base64
  elsif value.is_a?(String) && value.encoding == Encoding::BINARY
    [value].pack("m0").tr("=", "").tr("+/", "-_")
  else
    # Any other value is just converted to a string
    value.to_s.gsub("/", "%/")
  end
end

def self.with(namespace, identifier = nil)
  new.with(namespace, identifier)
end

def initialize
  super
  @path = []
end

def inspect
  to_str
end

def to_s
  to_str
end

def to_str
  "/".dup.concat(@path.join("/"))
end

def with(namespace, identifier = nil)
  if identifier.nil?
    @path << namespace
    return self
  end
  @path << "#{namespace}-#{self.class.to_key_id(identifier)}"
  self
end