Support deprecated status in 48in24 implementation status (exercism#6867

)

app/commands/user/challenges/featured_exercises_implementation_status_48_in_24.rb

@@ -0,0 +1,42 @@
+class User::Challenges::FeaturedExercisesImplementationStatus48In24
+  include Mandate
+
+  initialize_with :featured_exercises, :tracks
+
+  def call
+    tracks.map do |track|
+      exercises = featured_exercises.map do |featured_exercise|
+        [featured_exercise[:slug], track_exercise_status(track, featured_exercise)]
+      end.to_h
+
+      [track.slug, exercises]
+    end.to_h
+  end
+
+  private
+  def track_exercise_status(track, featured_exercise)
+    return :featured if featured_exercise[:featured_tracks].include?(track.slug)
+
+    exercise_slug = featured_exercise[:slug]
+    return :do_not_implement if track.foregone_exercises.include?(exercise_slug)
+
+    case track_exercises[track.slug][exercise_slug]
+    when nil
+      :missing
+    when 'active', 'beta'
+      :present
+    when 'deprecated'
+      :do_not_implement
+    end
+  end
+
+  memoize
+  def track_exercises
+    Exercise.joins(:track).
+      where(status: %i[beta active deprecated], track: tracks).
+      where(slug: featured_exercises.pluck(:slug)).
+      pluck('tracks.slug', 'exercises.slug', 'exercises.status').
+      group_by(&:first).
+      transform_values { |group| group.map { |values| values[1..] }.to_h }
+  end
+end

app/controllers/challenges_controller.rb

@@ -24,12 +24,7 @@ def start
   def implementation_status
     @featured_exercises = User::Challenges::FeaturedExercisesProgress48In24::EXERCISES
     @tracks = Track.active.order(:title)
-    @track_exercises = Exercise.joins(:track).
-      where(status: %i[beta active], track: @tracks).
-      where(slug: @featured_exercises.pluck(:slug)).
-      pluck('tracks.slug', 'exercises.slug').
-      group_by(&:first).
-      transform_values { |pairs| pairs.map(&:second) }
+    @track_exercises_status = User::Challenges::FeaturedExercisesImplementationStatus48In24.(@featured_exercises, @tracks)
   end
 
   private

app/views/challenges/implementation_status.html.haml

@@ -47,13 +47,14 @@
         %tbody
           - @tracks.each do |track|
             %tr
-              - @featured_exercises.each do |featured_exercises|
+              - @featured_exercises.each do |featured_exercise|
                 %td.p-8
-                  - if track.foregone_exercises.include?(featured_exercises[:slug])
+                  - case @track_exercises_status[track.slug][featured_exercise[:slug]]
+                  - when :do_not_implement
                     ⛔
-                  - elsif featured_exercises[:featured_tracks].include?(track.slug)
+                  - when :featured
                     💜
-                  - elsif @track_exercises[track.slug].to_a.include?(featured_exercises[:slug])
+                  - when :present
                     ✅
                   - else
                     ❌