class VideoInfo
  module Providers
    class Vimeo < Provider
      def self.usable?(url)
        url =~ /(vimeo\.com\/(?!album|hubnut\/album).*)/
      end

      def provider
        'Vimeo'
      end

      def api_key
        VideoInfo.provider_api_keys[:vimeo]
      end

      %w[description].each do |method|
        define_method(method) { _video[method] }
      end

      %w[duration width height].each do |method|
        define_method(method) { _video[method].to_i }
      end

      def title
        _video['name']
      end

      def author
        _video['user']['name']
      end

      def author_thumbnail_id
        author_uri = _video['user']['pictures']['uri']
        @author_thumbnail_id ||= _parse_picture_id(author_uri)
      end

      def author_thumbnail(width = 75)
        "https://i.vimeocdn.com/portrait/#{author_thumbnail_id}_#{width}x#{width}.jpg"
      end

      def thumbnail_id
        @thumbnail_id ||= _parse_picture_id(_video['pictures']['uri'])
      end

      def thumbnail(width = 200, height = nil)
        base_uri = "https://i.vimeocdn.com/video/#{thumbnail_id}"
        height ? base_uri + "_#{width}x#{height}.jpg" : base_uri + "_#{width}.jpg"
      end

      def thumbnail_small
        thumbnail(100, 75)
      end

      def thumbnail_medium
        thumbnail(200, 150)
      end

      def thumbnail_large
        thumbnail(640)
      end

      def keywords
        keywords_array.join(', ')
      end

      def keywords_array
        _video['tags'].map { |t| t['tag'] }
      end

      def embed_url
        "//player.vimeo.com/video/#{video_id}"
      end

      def date
        Time.parse(_video['created_time'], Time.now.utc).utc
      end

      def view_count
        _video['stats']['plays'].to_i
      end

      private

      def _clean_options(options)
        headers = [super, _authorization_headers, _api_version_headers]
        headers.inject(&:merge)
      end

      def _api_version
        '3.2'
      end

      def _authorization_headers
        { 'Authorization' => "bearer #{api_key}" }
      end

      def _api_version_headers
        { 'Accept' => "application/vnd.vimeo.*+json;version=#{_api_version}" }
      end

      def _video
        data
      end

      def _url_regex
        /.*\.com&&
        |\/(?:(?:groups\/[^\/]+\/videos\/)
        |(?:ondemand|channels)(?:(?:\/less\/)
        |(?:user[0-9]+\/review\/)?([0-9]+).*
        |(?:\/\w*\/))|(?:video\/))?([0-9]+).*$
        /x
      end

      def _api_base
        'api.vimeo.com'
      end

      def _api_path
        "/videos/#{video_id}"
      end

      def _api_url
        "https://#{_api_base}#{_api_path}"
      end

      def _default_iframe_attributes
        {}
      end

      def _default_url_attributes
        { title: 0,
          byline: 0,
          portrait: 0,
          autoplay: 0 }
      end

      def _parse_picture_id(uri)
        /\/pictures\/(\d+)/.match(uri)[1]
      end
    end
  end
end