Class: Asciidoctor::Foodogsquared::Extensions::MusicBrainzInlineMacro

Inherits:
Extensions::InlineMacroProcessor
  • Object
show all
Defined in:
lib/asciidoctor/foodogsquared/extensions/musicbrainz-inline-macro.rb

Instance Method Summary collapse

Instance Method Details

#process(parent, target, attrs) ⇒ Object 



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# File 'lib/asciidoctor/foodogsquared/extensions/musicbrainz-inline-macro.rb', line 15

def process(parent, target, attrs)
  doc = parent.document
  root_endpoint = 'https://musicbrainz.org/ws/2'

  begin
    headers = {
      'Accept' => 'application/json',
      'User-Agent' => ::Asciidoctor::Foodogsquared::USER_AGENT
    }

    uri = %(#{root_endpoint}/#{attrs['type']}/#{target})

    metadata = OpenURI.open_uri(uri, headers) { |f| JSON.parse(f.read) }
    attrs['caption'] ||= case attrs['type']
                         when 'artist', 'area', 'events', 'genre', 'instrument', 'label', 'place', 'series'
                           metadata['name']
                         when 'recording', 'release-group', 'release', 'cdstub', 'work'
                           metadata['title']
                         when 'url'
                           metadata['resource']
                         end

    target = %(https://musicbrainz.org/#{attrs['type']}/#{target})
    doc.register :links, target
    create_anchor parent, attrs['caption'], type: :link, target: target
  rescue StandardError
    warning = %(error while getting Musicbrainz database object '#{target}: #{e}')
    warn_or_raise doc, warning
    reader.push_include warning, target, target, 1, attrs
  end
end