# frozen_string_literal: true

module FakePicture
  class Base
    def self.random_file(path)
      path_to_file = Dir[path].select { |f| File.file?(f) }.sample

      return false if path_to_file.nil?

      path_to_file
    end

    # def download(query)
      #TODO: make downloading pictures to gem
    # end

    def self.initialize_fake_picture_methods(*method_names)
      path_to_pack = "#{__dir__}/fake_picture/#{self.name.split('::').last.downcase}/pack"

      self.superclass.check_pack_directory_readiness(path_to_pack)

      [*method_names, :random].each do |name|
        selector = name == :random ? '/*' : "/#{name}-*"

        define_singleton_method :"#{name}" do
          self.superclass.random_file("#{path_to_pack +  selector}")
        end

        define_singleton_method :"#{name}_file" do
          File.new(self.send(name))
        end
      end
    end

    private

    def self.check_pack_directory_readiness(path)
      raise 'Pack folder doesn\'t exist or empty' unless File.directory?(path) and !Dir.empty?(path)
    end
  end
end

# require fake_picture objects
Dir.glob(File.join(__dir__, 'fake_picture', '/**/*.rb')).sort.each { |file| require file }

# add photos like logos, animals, "for posts"