require "render/attributes/attribute"

module Render
  class ArrayAttribute < Attribute
    FAUX_DATA_UPPER_LIMIT = 5.freeze
    DEFAULT_NAME = :render_array_attribute_untitled

    attr_accessor :simple,
      :min_items,
      :max_items,
      :unique

    def initialize(options = {})
      super

      self.name = options.fetch(:title, DEFAULT_NAME).to_sym
      self.min_items = options[:minItems] || 0
      self.max_items = options[:maxItems]
      self.unique = !!options[:uniqueItems]

      options = options.fetch(:items)
      process_options!(options)

      if options.keys.include?(:properties)
        self.schema = Schema.new(options)
      else
        self.simple = true
      end
    end

    def serialize(explicit_values = nil)
      explicit_values = faux_array_data if (Render.live == false && explicit_values.nil?)
      values = if simple
        explicit_values.collect do |value|
          value = (value || default_value)
          Type.to(types, value)
        end
      else
        explicit_values.collect do |value|
          schema.serialize!(value)
        end
      end

      unique ? values.uniq : values
    end

    private

    def faux_array_data
      faux_max = max_items || FAUX_DATA_UPPER_LIMIT
      rand(min_items..faux_max).times.collect do
        simple ? nil : {}
      end
    end
  end
end