module Lutaml::Model::Serialize

def self.included(base)
  base.extend(ClassMethods)
end

def initialize(attrs = {})
  return unless self.class.attributes
  if attrs.is_a?(Lutaml::Model::MappingHash)
    @ordered = attrs.ordered?
    @element_order = attrs.item_order
  end
  self.class.attributes.each do |name, attr|
    value = self.class.attr_value(attrs, name, attr)
    send(:"#{name}=", self.class.ensure_utf8(value))
  end
  validate
end

def key_exist?(hash, key)
  hash.key?(key) || hash.key?(key.to_sym) || hash.key?(key.to_s)
end

def key_value(hash, key)
  hash[key] || hash[key.to_sym] || hash[key.to_s]
end

def ordered?
  @ordered
end

def validate
  self.class.attributes.each do |name, attr|
    value = send(name)
    unless self.class.attr_value_valid?(name, value)
      raise Lutaml::Model::InvalidValueError.new(name, value, attr.options[:values])
    end
  end
end