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require 'html/pipeline/filter'
module Banzai
module Filter
##
# Filter than unfolds local references.
#
#
class ReferenceUnfoldFilter < HTML::Pipeline::Filter
def initialize(*)
super
unless result[:references].is_a?(Hash)
raise StandardError, 'References not processed!'
end
@text = context[:text].dup
@new_project = context[:new_project]
@referables = result[:references].values.flatten
end
def call
@referables.each do |referable|
next unless referable.respond_to?(:to_reference)
pattern = /#{Regexp.escape(referable.to_reference)}/
@text.gsub!(pattern, referable.to_reference(@new_project))
end
@text
end
private
def validate
needs :project
needs :new_project
needs :text
end
end
end
end
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