# frozen_string_literal: true

module Onebox
  module Engine
    class InstagramOnebox
      include Engine
      include StandardEmbed
      include LayoutSupport

      matches_regexp(/^https?:\/\/(?:www\.)?(?:instagram\.com|instagr\.am)\/?(?:.*)\/p\/[a-zA-Z\d_-]+/)
      always_https

      def clean_url
        url.scan(/^https?:\/\/(?:www\.)?(?:instagram\.com|instagr\.am)\/?(?:.*)\/p\/[a-zA-Z\d_-]+/).flatten.first
      end

      def data
        oembed = get_oembed
        permalink = clean_url.gsub("/#{oembed.author_name}/", "/")
        description = oembed.title
        type = if description =~ /^Photos by/
          "album"
        elsif description =~ /^Video by/
          "video"
        else
          "photo"
        end
        title = if type == "album"
          "[Album] @#{oembed.author_name}"
        else
          "@#{oembed.author_name}"
        end

        result = { link: permalink,
                   title: title,
                   image: "#{permalink}/media/?size=l",
                   description: Onebox::Helpers.truncate(description, 250)
                  }
        result[:video_link] = permalink if type == "video"
        result
      end

      protected

      def get_oembed_url
        oembed_url = "https://api.instagram.com/oembed/?url=#{clean_url}"
      end
    end
  end
end