module Berkshelf::Validator

def validate(cookbooks)
  Array(cookbooks).each do |cookbook|
    validate_files(cookbook)
    cookbook.validate
  end
end

def validate_files(cookbooks)
  Array(cookbooks).each do |cookbook|
    base, name = Pathname.new(cookbook.path.to_s).split
    files = Dir.glob("#{name}/**/*.rb", base: base.to_s).select { |f| f =~ /[[:space:]]/ }
    validate_versions(cookbook)
    raise InvalidCookbookFiles.new(cookbook, files) unless files.empty?
  end
end

def validate_versions(cookbook)
  cookbook_dependencies = cookbook.dependencies
  cookbook_dependencies.each do |cookbook_name, cookbook_version|
    version = cookbook_version.gsub(/[^\d,\.]/, '')
    Chef::Version.new(version)
  end
end