Class: OpenStax::Content::Abl

Inherits:
Object
  • Object
show all
Defined in:
lib/openstax/content/abl.rb

Instance Method Summary collapse

Constructor Details

#initialize(url: nil) ⇒ Abl

Returns a new instance of Abl.



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# File 'lib/openstax/content/abl.rb', line 5

def initialize(url: nil)
  @url = url
end

Instance Method Details

#approved_books(archive: OpenStax::Content::Archive.new) ⇒ Object 



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# File 'lib/openstax/content/abl.rb', line 41

def approved_books(archive: OpenStax::Content::Archive.new)
  # Can be removed once we have no more CNX books
  version_by_collection_id = latest_approved_version_by_collection_id(archive: archive)

  body_hash[:approved_books].flat_map do |approved_book|
    if approved_book[:versions].nil?
      # CNX-hosted book
      version = version_by_collection_id[approved_book[:collection_id]]

      next [] if version.nil?

      approved_book[:books].map do |book|
        OpenStax::Content::Book.new(
          archive: archive,
          uuid: book[:uuid],
          version: version[:content_version].sub('1.', ''),
          slug: book[:slug],
          style: approved_book[:style]
        )
      end
    else
      # Git-hosted book
      approved_book[:versions].flat_map do |version|
        next [] if version[:min_code_version] > archive.version

        commit_metadata = version[:commit_metadata]

        commit_metadata[:books].map do |book|
          OpenStax::Content::Book.new(
            archive: archive,
            uuid: book[:uuid],
            version: version[:commit_sha][0..6],
            slug: book[:slug],
            style: book[:style]
          )
        end
      end
    end
  end
end

#body_hash ⇒ Object 



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# File 'lib/openstax/content/abl.rb', line 17

def body_hash
  @body_hash ||= JSON.parse(body_string, symbolize_names: true)
end

#body_string ⇒ Object 



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# File 'lib/openstax/content/abl.rb', line 13

def body_string
  @body_string ||= Faraday.get(url).body
end

#digest ⇒ Object 



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# File 'lib/openstax/content/abl.rb', line 21

def digest
  Digest::SHA256.hexdigest body_string
end

#latest_approved_version_by_collection_id(archive: OpenStax::Content::Archive.new) ⇒ Object 



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# File 'lib/openstax/content/abl.rb', line 25

def latest_approved_version_by_collection_id(archive: OpenStax::Content::Archive.new)
  {}.tap do |hash|
    body_hash[:approved_versions].each do |version|
      next if version[:min_code_version] > archive.version

      existing_version = hash[version[:collection_id]]

      next if !existing_version.nil? &&
              (existing_version[:content_version].split('.').map(&:to_i) <=>
               version[:content_version].split('.').map(&:to_i)) >= 0

      hash[version[:collection_id]] = version
    end
  end
end

#url ⇒ Object 



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# File 'lib/openstax/content/abl.rb', line 9

def url
  @url ||= OpenStax::Content.abl_url
end