class Middleman::Renderers::Liquid

def after_configuration
  ::Liquid::Template.file_system = self
end

def manipulate_resource_list(resources)
  return resources unless app.extensions[:data]
  resources.each do |resource|
    next if resource.file_descriptor.nil?
    next unless resource.file_descriptor[:full_path].to_s =~ %r{\.liquid$}
    # Convert data object into a hash for liquid
    resource.add_metadata locals: {
      data: stringify_recursive(app.extensions[:data].data_store.to_h)
    }
  end
end

def map_value(thing)
  case thing
  when Hash
    stringify_recursive(thing)
  when Array
    thing.map { |v| map_value(v) }
  else
    thing
  end
end

def read_template_file(template_path, _ = nil)
  file = app.files.find(:source, "_#{template_path}.liquid")
  raise ::Liquid::FileSystemError, "No such template '#{template_path}'" unless file
  file.read
end

def stringify_recursive(hash)
  {}.tap do |h|
    hash.each { |key, value| h[key.to_s] = map_value(value) }
  end
end