Add the weekly avis answer time average to Stats

app/controllers/stats_controller.rb

@@ -22,6 +22,7 @@ class StatsController < ApplicationController
     @dossier_filling_mean_time = dossier_filling_mean_time(dossiers)
 
     @avis_usage = avis_usage
+    @avis_average_answer_time = avis_average_answer_time
   end
 
   private
@@ -165,4 +166,18 @@ class StatsController < ApplicationController
       [min_date.to_i, result]
     end
   end
+
+  def avis_average_answer_time
+    [3.week.ago, 2.week.ago, 1.week.ago].map do |min_date|
+      max_date = min_date + 1.week
+
+      average = Avis.with_answer
+        .where(created_at: min_date..max_date)
+        .average("EXTRACT(EPOCH FROM updated_at - created_at) / 86400")
+
+      result = average ? average.to_f.round(2) : 0
+
+      [min_date.to_i, result]
+    end
+  end
 end

app/models/avis.rb

@@ -22,7 +22,7 @@ class Avis < ApplicationRecord
     Avis.where(email: gestionnaire.email).update_all(email: nil, gestionnaire_id: gestionnaire.id)
   end
 
-  def  self.avis_exists_and_email_belongs_to_avis?(avis_id, email)
+  def self.avis_exists_and_email_belongs_to_avis?(avis_id, email)
     avis = Avis.find_by(id: avis_id)
     avis.present? && avis.email == email
   end

app/views/stats/index.html.haml

@@ -86,4 +86,8 @@
         %span.stat-card-title Taux d'utilisation des avis
         = line_chart @avis_usage, ytitle: 'dossiers avec avis / total dossiers', xtitle: 'semaines'
 
+      .stat-card.stat-card-half.pull-left
+        %span.stat-card-title Temps de réponse moyen par avis
+        = line_chart @avis_average_answer_time, ytitle: 'jours', xtitle: 'semaines'
+
       .clearfix

spec/controllers/stats_controller_spec.rb

@@ -224,4 +224,29 @@ describe StatsController, type: :controller do
 
     it { expect(subject).to match([[3.week.ago.to_i, 0], [2.week.ago.to_i, 0], [1.week.ago.to_i, 33.33]]) }
   end
+
+  describe "#avis_average_answer_time" do
+    before do
+      # 1 week ago
+      create(:avis, answer: "voila ma réponse", created_at: 1.week.ago + 1.day, updated_at: 1.week.ago + 2.days) # 1 day
+      create(:avis, created_at: 1.week.ago + 2.days)
+
+      # 2 weeks ago
+      create(:avis, answer: "voila ma réponse", created_at: 2.week.ago + 1.day, updated_at: 2.week.ago + 2.days) # 1 day
+      create(:avis, answer: "voila ma réponse2", created_at: 2.week.ago + 3.days, updated_at: 1.week.ago + 6.days) # 10 days
+      create(:avis, answer: "voila ma réponse2", created_at: 2.week.ago + 2.days, updated_at: 1.week.ago + 6.days) # 11 days
+      create(:avis, created_at: 2.week.ago + 1.day, updated_at: 2.week.ago + 2.days)
+
+      # 3 weeks ago
+      create(:avis, answer: "voila ma réponse2", created_at: 3.weeks.ago + 1.day, updated_at: 3.weeks.ago + 2.days) # 1 day
+      create(:avis, answer: "voila ma réponse2", created_at: 3.weeks.ago + 1.day, updated_at: 1.week.ago + 5.days) # 18 day
+    end
+
+    subject { StatsController.new.send(:avis_average_answer_time) }
+
+    it { expect(subject.count).to eq(3) }
+    it { is_expected.to include [1.week.ago.to_i, 1.0] }
+    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
 end