Ajoute un compteur sur les champ de type textarea sur l'interface usager

app/models/champs/textarea_champ.rb

@@ -24,4 +24,29 @@ class Champs::TextareaChamp < Champs::TextChamp
   def for_export
     value.present? ? ActionView::Base.full_sanitizer.sanitize(value) : nil
   end
+
+  def character_count(text)
+    return text&.bytesize
+  end
+
+  def analyze_character_count(characters, limit)
+    if characters
+      threshold_75 = limit * 0.75
+
+      if characters >= limit
+        return :warning
+      elsif characters >= threshold_75
+        return :info
+      end
+    end
+  end
+
+  def remaining_characters(characters, limit)
+    threshold_75 = limit * 0.75
+    limit - characters if characters >= threshold_75
+  end
+
+  def excess_characters(characters, limit)
+    characters - limit if characters > limit
+  end
 end