module PackagesHelper

  # Return a query of all screenshots that the current user may see
  # Consists of:
  # - approved (public) screenshots
  # - screenshots uploaded by the user
  # - all screenshots if the user is an admin
  # def screenshots_visible_to_user(package)
  #   if user_signed_in? and current_user.is_admin?
  #     # User is an admin and can view all screenshots
  #     package.screenshots
  #   # TODO: User logins and assigned screenshots will come in a later version
  #   # elsif user_signed_in?
  #   #   package.screenshots.where(id: (current_user.screenshots.select(:id))) | \
  #   #   package.screenshots.where(approved: true).order('created_at DESC')
  #   else
  #     package.screenshots.where(uploaderhash: session.id.to_s) | \
  #     package.screenshots.where(approved: true).order('created_at DESC')
  #   end
  # end

  def screenshots_visible_to_user(package, user_session)
    # Show all screenshots to admins
    if current_user && current_user.is_admin?
      package.screenshots

    # Show screenshots belonging to the user or public/approved
    else
      package.screenshots.where(
        uploaderhash: user_session.id.to_s
      ).or(
        package.screenshots.where(
          approved: true
        )
      )
    end
  end

  def screenshot_uploaded_by_current_user?(screenshot)
    screenshot.uploaderhash == session.id.to_s
  end

  # Return the description and/or the version of the package
  def screenshot_caption(screenshot)
    str = []
    str << screenshot.description if screenshot.description.present?
    str << "#{screenshot.package.name} version #{screenshot.version}" if screenshot.version.present?
    str << "uploaded #{time_ago_in_words(screenshot.created_at)} ago"
    str.join(' ∙ ')
  end

  def small_img(screenshot, cls: 'thumbnail')
    if screenshot && screenshot.simage(:small)
      image = screenshot.simage(:small)
      image_tag(
        image.url,
        width: image.width,
        height: image.height,
        alt: screenshot.caption, 
        class: cls
      )
    else
      image_tag(
        '/images/dummy/no-screenshots-upload-one.svg',
        width: 220,
        height: 220 * 3 / 4
      )
    end
  end

  # Show filled/empty star icons from FontAwesome
  # depending on the rating (1-5)
  # def star_rating(rating)
  #   filled_stars = fa_icon('star') * rating
  #   empty_stars = fa_icon('star-o') * (5-rating)
  #   (filled_stars+empty_stars).html_safe
  # end

  def status_text(screenshot)
    # TODO: markedfordelete/reporting will be removed
    if screenshot.markedfordelete
      "Removal requested > #{screenshot.delete_reason}"
    elsif screenshot.approved
      fa_icon('check-square') + ' Public'
    else
      fa_icon('hourglass') + ' Waiting for approval'
    end
  end

end