Class: Reading::Row::VariantsAttribute

Inherits:
Attribute show all
Defined in:
lib/reading/attribute/variants/variants_attribute.rb

Instance Method Summary collapse

Methods inherited from Attribute

#initialize

Constructor Details

This class inherits a constructor from Reading::Row::Attribute

Instance Method Details

#parse ⇒ Object 



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# File 'lib/reading/attribute/variants/variants_attribute.rb', line 11

def parse
  sources_str = columns[:sources]&.presence || " "

  format_as_separator = config.deep_fetch(:csv, :regex, :formats_split)

  sources_str.split(format_as_separator).map { |variant_with_extras|
    # without extra info or series
    bare_variant = variant_with_extras
      .split(config.deep_fetch(:csv, :long_separator))
      .first

    series_attr = SeriesSubattribute.new(item_head:, variant_with_extras:, config:)
    sources_attr = SourcesSubattribute.new(bare_variant:, config:)
    # Length, despite not being very complex, is still split out into a
    # subattribute because it needs to be accessible to
    # ExperiencesAttribute (more specifically SpansSubattribute) which
    # uses length as a default value for amount.
    length_attr = LengthSubattribute.new(bare_variant:, columns:, config:)
    extra_info_attr = ExtraInfoSubattribute.new(item_head:, variant_with_extras:, config:)

    variant =
      {
        format: format(bare_variant) || format(item_head) || template.fetch(:format),
        series: series_attr.parse                         || template.fetch(:series),
        sources: sources_attr.parse                       || template.fetch(:sources),
        isbn: isbn(bare_variant)                          || template.fetch(:isbn),
        length: length_attr.parse                         || template.fetch(:length),
        extra_info: extra_info_attr.parse                 || template.fetch(:extra_info)
      }

    if variant != template
      variant
    else
      nil
    end
  }.compact.presence
end