Add the weekly avis answer percentage to Stats

app/controllers/stats_controller.rb

@@ -23,6 +23,7 @@ class StatsController < ApplicationController
 
     @avis_usage = avis_usage
     @avis_average_answer_time = avis_average_answer_time
+    @avis_answer_percentages = avis_answer_percentages
   end
 
   private
@@ -180,4 +181,23 @@ class StatsController < ApplicationController
       [min_date.to_i, result]
     end
   end
+
+  def avis_answer_percentages
+    [3.week.ago, 2.week.ago, 1.week.ago].map do |min_date|
+      max_date = min_date + 1.week
+
+      weekly_avis = Avis.where(created_at: min_date..max_date)
+
+      weekly_avis_count = weekly_avis.count
+
+      if weekly_avis_count == 0
+        [min_date.to_i, 0]
+      else
+        answered_weekly_avis_count = weekly_avis.with_answer.count
+        result = ((answered_weekly_avis_count.to_f / weekly_avis_count) * 100).round(2)
+
+        [min_date.to_i, result]
+      end
+    end
+  end
 end

app/views/stats/index.html.haml

@@ -90,4 +90,8 @@
         %span.stat-card-title Temps de réponse moyen par avis
         = line_chart @avis_average_answer_time, ytitle: 'jours', xtitle: 'semaines'
 
+      .stat-card.stat-card-half.pull-left
+        %span.stat-card-title Pourcentage d'avis rempli
+        = line_chart @avis_answer_percentages, ytitle: 'avis avec reponse / total avis', xtitle: 'semaines'
+
       .clearfix

spec/controllers/stats_controller_spec.rb

@@ -249,4 +249,18 @@ describe StatsController, type: :controller do
     it { is_expected.to include [2.week.ago.to_i, 7.33] }
     it { is_expected.to include [3.week.ago.to_i, 9.5] }
   end
+
+  describe '#avis_answer_percentages' do
+    let!(:avis) { create(:avis, created_at: 2.days.ago) }
+    let!(:avis2) { create(:avis, answer: 'answer', created_at: 2.days.ago) }
+    let!(:avis3) { create(:avis, answer: 'answer', created_at: 2.days.ago) }
+
+    subject { StatsController.new.send(:avis_answer_percentages) }
+
+    before do
+      Timecop.freeze(Time.now)
+    end
+
+    it { is_expected.to match [[3.week.ago.to_i, 0], [2.week.ago.to_i, 0], [1.week.ago.to_i, 66.67]] }
+  end
 end