namespace :debshots do
  desc "Convert images from the original screenshots directory tree to paperclip-styled images"

  task :screenshots_to_paperclip => :environment do
    Rails.logger = Logger.new(STDOUT)
    # Rails.logger.level = Logger::INFO
    Rails.logger.level = Logger::DEBUG

    base_path = Rails.root.join('public')

    Rails.logger.info "Iterating over screenshots"
    Screenshot.all.each do |screenshot|
      path = File.join(base_path, screenshot.image_url(:large))
      Rails.logger.info "- #{screenshot.id} (package: #{screenshot.package.name}) (path: #{path})"

      # Check that the file actually exists
      unless File.file? path
        Rails.logger.error "Screenshots not found at #{path}. Skipping."
        next
      end

      # Has the screenshot been migrated already?
      if screenshot.image.exists?
        Rails.logger.info "Screenshot already migrated. Skipping."
        next
      end

      File.open(path, 'rb') do |image_file|
        screenshot.image = image_file
        Rails.logger.debug "Adding image file: #{image_file}"
        unless screenshot.valid?
          Rails.logger.error "Adding image file failed. Errors: #{screenshot.errors[:image]}"
        end
        screenshot.save
        Rails.logger.debug "Screenshot object saved"
      end
    end
  end
end