#434

backend/app/services/counts_table_export.rb

@@ -30,6 +30,9 @@ class CountsTableExport
     @columns = params.fetch('columns', '').split(',')
     @headers = JSON.parse(params.fetch('headers', '[]'))
     raise ArgumentError unless @headers.is_a?(Array) && @headers.all? { _1.is_a?(String) }
+    if @summary && @headers.any? && @headers.length != @query.axes.all.length + 1
+      raise ArgumentError
+    end
 
     unless @summary
       if ['posts', 'tags'].include?(resource)
@@ -71,7 +74,7 @@ class CountsTableExport
             else
               values = if @summary
                          row[:values].each_with_index.map do |value, index|
-                           page[:axis_labels].fetch("a#{ index }", {}).fetch(value.to_s, value)
+                           summary_value(value, index, page)
                          end + [row[:count]]
                        elsif @projection
                          @projection.csv_record(record, row)
@@ -91,11 +94,29 @@ class CountsTableExport
   private
 
   def summary_headers
+    return @headers if @headers.any?
+
     labels = @labels
     @query.axes.all.map { labels.fetch(_1['field'], _1['field']) } +
         [labels.fetch('count', 'count')]
   end
 
+  def summary_value(value, index, page)
+    field = @query.axes.all.fetch(index).fetch('field')
+    return @labels.fetch('bot', '') if field == 'user' && value.nil?
+
+    names = page[:axis_labels].fetch("a#{ index }", {})
+    name = field == 'user' ? names[value.to_s] : names.fetch(value.to_s, value)
+    if field == 'user'
+      name = @labels.fetch('notRegistered', '') if name.nil? || name == ''
+      pattern = @labels.fetch('actorFormat', '{{name}} (#{{id}})')
+      return pattern.gsub(/\{\{(name|id)\}\}/) do
+        Regexp.last_match(1) == 'name' ? name.to_s : value.to_s
+      end
+    end
+    @labels.fetch("#{ field }:#{ value }", name)
+  end
+
   def project(row)
     return { row: row[:values].first(@query.axes.rows.length),
              column: row[:values].drop(@query.axes.rows.length), count: row[:count] } if @summary
@@ -148,6 +169,7 @@ class CountsTableExport
   end
 
   def csv_logical(key, value)
+    return @labels.fetch('bot', '') if key == 'created_by_user' && value.nil?
     return value ? @labels.fetch('latest', '') : '' if key == 'is_latest'
     if value.is_a?(Time) || value.is_a?(ActiveSupport::TimeWithZone)
       return @query.population.timezone.utc_to_local(value.utc).iso8601