amelioration(ExpiredUsersDeletionService): prepare le grand ménage

app/services/expired_users_deletion_service.rb

@@ -0,0 +1,17 @@
+class ExpiredUsersDeletionService
+  def self.process_expired
+    users = find_expired_user
+    users.find_each do |user|
+      user.delete_and_keep_track_dossiers_also_delete_user(nil)
+    end
+  end
+
+  # rubocop:disable DS/Unscoped
+  def self.expiring_users
+    User.unscoped # avoid default_scope eager_loading :export, :instructeur, :administrateur
+      .joins(:dossiers)
+      .having('MAX(dossiers.created_at) < ?', 2.years.ago)
+      .group('users.id')
+  end
+  # rubocop:enable DS/Unscoped
+end

spec/services/expired_users_deletion_service_spec.rb

@@ -0,0 +1,42 @@
+describe ExpiredUsersDeletionService do
+  let(:user) { create(:user) }
+  before { user && dossier }
+
+  describe '#process_expired' do
+    subject { ExpiredUsersDeletionService.process_expired }
+    context 'when user has a dossier created 1 year ago' do
+      let(:dossier) { create(:dossier, user:, created_at: 1.year.ago) }
+      it 'does not destroy anything' do
+        expect { subject }.not_to change { Dossier.count }
+        expect(user.reload).to be_truthy
+      end
+    end
+
+    context 'when user has a dossier created 3 years ago' do
+      let(:dossier) { create(:dossier, user:, created_at: 3.years.ago) }
+      it 'destroys user and dossier' do
+        expect { subject }.to change { Dossier.count }.by(-1)
+        expect { user.reload }.to raise_error(ActiveRecord::RecordNotFound)
+      end
+    end
+  end
+
+  describe '#find_expired_user' do
+    subject { ExpiredUsersDeletionService.find_expired_user }
+
+    context 'when user has no dossiers (TODO: just drop all user without dossier, no need to alert them)' do
+      let(:dossier) { nil }
+      xit { is_expected.to include(user) }
+    end
+
+    context 'when user has a dossier created 1 year ago' do
+      let(:dossier) { create(:dossier, user:, created_at: 1.year.ago) }
+      it { is_expected.not_to include(user) }
+    end
+
+    context 'when user has a dossier created 3 years ago' do
+      let(:dossier) { create(:dossier, user:, created_at: 3.years.ago) }
+      it { is_expected.to include(user) }
+    end
+  end
+end