hal with citation

app/models/concerns/with_citations.rb

 module WithCitations
   extend ActiveSupport::Concern
 
-  def citation_apa(website)
-    citation_for(website, "apa")
+  def citation_apa(website: nil)
+    citation_for("apa", website: website)
   end
 
-  def citation_iso690(website)
-    citation_for(website, "iso690-author-date-fr-no-abstract")
+  def citation_iso690(website: nil)
+    citation_for("iso690-author-date-fr-no-abstract", website: website)
   end
 
-  def citation_mla(website)
-    citation_for(website, "modern-language-association")
+  def citation_mla(website: nil)
+    citation_for("modern-language-association", website: website)
   end
 
   protected
 
-  def citeproc_for_website(website)
-    raise NotImplementedError
-  end
-
-  def citation_for(website, style)
-    citeproc = citeproc_for_website(website)
+  def citation_for(style, website: nil)
+    citeproc = to_citeproc(website: website)
     processor = CiteProc::Processor.new style: style, format: 'text'
     processor.import([citeproc])
     processor.render(:bibliography, id: citeproc["id"]).first
   end
+
+  def to_citeproc(website: nil)
+    raise NotImplementedError
+  end
 end
\ No newline at end of file

app/models/research/hal/publication.rb

@@ -27,6 +27,7 @@
 class Research::Hal::Publication < ApplicationRecord
   include AsIndirectObject
   include Sanitizable
+  include WithCitations
   include WithGitFiles
   include WithSlug
 
@@ -108,6 +109,23 @@ class Research::Hal::Publication < ApplicationRecord
 
   protected
 
+  def to_citeproc(website: nil)
+    {
+      "title" => title,
+      "author" => authors.map { |author|
+        { "family" => author.last_name, "given" => author.first_name }
+      },
+      "URL" => hal_url,
+      "container-title" => journal_title,
+      # "publisher" => university.name,
+      # "keywords" => keywords,
+      "pdf" => file,
+      "month-numeric" => publication_date.present? ? publication_date.month.to_s : nil,
+      "issued" => publication_date.present? ? { "date-parts" => [[publication_date.year, publication_date.month]] } : nil,
+      "id" => docid
+    }
+  end
+
   def slug_unavailable?(slug)
     self.class.unscoped
               .where(slug: slug)

app/models/research/journal/paper.rb

@@ -106,7 +106,7 @@ class Research::Journal::Paper < ApplicationRecord
 
   protected
 
-  def citeproc_for_website(website)
+  def to_citeproc(website: nil)
     {
       "title" => title,
       "author" => people.map { |person|