Add a fix language function

app/controllers/static_pages_controller.rb

@@ -45,8 +45,10 @@ def index
 
         # Process results to get sorted languages and editors
         language_counts = results
-          .map { |r| [ r.language&.downcase, r.language_count ] }
+          .map { |r| [ r.language&.categorize_language, r.language_count ] } # fix the bug where langs can have both upper and lower case like JAVA and java found here (https://github.com/hackclub/hackatime/issues/402)
           .reject { |lang, _| lang.nil? || lang.empty? }
+          .group_by { |lang, _| lang }
+          .transform_values { |pairs| pairs.sum { |_, count| count } }
           .uniq
           .sort_by { |_, count| -count }
 
@@ -268,7 +270,15 @@ def filterable_dashboard_data
           result[filter] = group_by_time.sort_by { |k, v| v }
                                         .reverse.map(&:first)
                                         .compact_blank
-                                        .map { |k| %i[operating_system editor].include?(filter) ? k.capitalize : k }
+                                        .map { |k|
+                                          if filter == :language
+                                            k.categorize_language
+                                          elsif %i[operating_system editor].include?(filter)
+                                            k.capitalize
+                                          else
+                                            k
+                                          end
+                                        }
                                         .uniq
 
           if params[filter].present?
@@ -277,6 +287,18 @@ def filterable_dashboard_data
               # search for both lowercase and capitalized versions
               normalized_arr = filter_arr.flat_map { |v| [ v.downcase, v.capitalize ] }.uniq
               filtered_heartbeats = filtered_heartbeats.where(filter => normalized_arr)
+            elsif filter == :language
+              # find the real name, not the pretty one cause some edditors are stupid and return stuff like JAVASCRIPT and javascript and i need to add stuff to make them both fit the lookup
+              raw_language_values = []
+              current_user.heartbeats.distinct.pluck(filter).compact_blank.each do |raw_lang|
+                categorized = raw_lang.categorize_language
+                if filter_arr.include?(categorized)
+                  raw_language_values << raw_lang
+                end
+              end
+               Rails.logger.debug "lang filter: selected=#{filter_arr}, raw_language_values=#{raw_language_values}" # Debug line
+
+              filtered_heartbeats = filtered_heartbeats.where(filter => raw_language_values) if raw_language_values.any?
             else
               filtered_heartbeats = filtered_heartbeats.where(filter => filter_arr)
             end
@@ -318,7 +340,12 @@ def filterable_dashboard_data
             .duration_seconds
             .each_with_object({}) do |(raw_key, duration), agg|
               key = raw_key.to_s.presence || "Unknown"
-              key = key.downcase if %i[editor operating_system].include?(filter)
+              # fix the bug where langs can have both upper and lower case like JAVA and java found here (https://github.com/hackclub/hackatime/issues/402)
+              if filter == :language
+                key = key.categorize_language unless key == "Unknown"
+              elsif %i[editor operating_system].include?(filter)
+                key = key.downcase
+              end
               agg[key] = (agg[key] || 0) + duration
             end
 

config/initializers/monkey_patches.rb

@@ -13,3 +13,12 @@ def user
 
   Doorkeeper::ApplicationsController.layout "application" # show oauth2 admin in normal hackatime ui
 end
+
+
+
+class String
+  # Hopefully this is the right place! It a really good monkey patch!!
+  def categorize_language
+    WakatimeService.categorize_language(self)
+  end
+end

lib/wakatime_service.rb

@@ -128,6 +128,33 @@ def categorize_editor(editor)
     end
   end
 
+  def self.categorize_language(language)
+    # Stole this list of langs from some wikipidia page abt popular langs tehe
+    # Please double check this list and add others that i missed or added wrong
+    return nil if language.blank?
+
+    case language.downcase
+    when "java" then "Java"
+    when "javascript", "js" then "JavaScript"
+    when "typescript", "ts" then "TypeScript"
+    when "python", "py", "python3" then "Python"
+    when "c++", "cpp" then "C++"
+    when "c#", "csharp" then "C#"
+    when "html" then "HTML"
+    when "css" then "CSS"
+    when "json" then "JSON"
+    when "xml" then "XML"
+    when "yaml", "yml" then "YAML"
+    when "markdown", "md" then "Markdown"
+    when "shell", "bash", "sh" then "Shell"
+    when "ruby", "rb" then "Ruby"
+    when "go", "golang" then "Go"
+    when "rust", "rs" then "Rust"
+    when "php" then "PHP"
+    else language.capitalize
+    end
+  end
+
   private
 
   def convert_to_unix_timestamp(timestamp)