delete a user

app/controllers/manager/users_controller.rb

@@ -20,5 +20,18 @@ module Manager
 
       head :ok
     end
+
+    def delete
+      user = User.find(params[:id])
+      if !user.can_be_deleted?
+        fail "Impossible de supprimer cet utilisateur car il a des dossiers en instruction"
+      end
+      user.delete_and_keep_track_dossiers(current_administration)
+
+      logger.info("L'utilisateur #{user.id} est supprimé par #{current_administration.id}")
+      flash[:notice] = "L'utilisateur #{user.id} est supprimé"
+
+      redirect_to manager_users_path
+    end
   end
 end

app/models/user.rb

@@ -100,6 +100,15 @@ class User < ApplicationRecord
     dossiers.state_instruction_commencee.empty?
   end
 
+  def delete_and_keep_track_dossiers(administration)
+    if can_be_deleted?
+      dossiers.each do |dossier|
+        dossier.delete_and_keep_track(administration)
+      end
+      destroy
+    end
+  end
+
   private
 
   def link_invites!

app/views/manager/users/show.html.erb

@@ -25,13 +25,9 @@ as well as a link to its edit page.
   </h1>
 
   <div>
-    <%= link_to(
-      t("administrate.actions.edit_resource", name: page.page_title),
-      [:edit, namespace, page.resource],
-      class: "button",
-    ) if valid_action?(:edit) && show_action?(:edit, page.resource) %>
-  </div>
+    <%= button_to "supprimer", delete_manager_user_path(page.resource), method: :delete, disabled: !page.resource.can_be_deleted?, class: "button", data: { confirm: "Confirmez-vous la suppression de l'utilisateur ?" }, title: page.resource.can_be_deleted? ? "Supprimer" : "Cet utilisateur a des dossiers dont l'instruction a commencé et ne peut être supprimé" %>
 
+  </div>
   <div>
     <% if !user.confirmed? %>
       <%= link_to('Renvoyer l’email de confirmation', [:resend_confirmation_instructions, namespace, page.resource], method: :post, class: 'button') %>

config/routes.rb

@@ -25,6 +25,7 @@ Rails.application.routes.draw do
     end
 
     resources :users, only: [:index, :show] do
+      delete 'delete', on: :member
       post 'resend_confirmation_instructions', on: :member
       put 'enable_feature', on: :member
     end

spec/controllers/manager/users_controller_spec.rb

@@ -0,0 +1,17 @@
+describe Manager::UsersController, type: :controller do
+  let(:administration) { create(:administration) }
+
+  describe '#delete' do
+    let!(:user) { create(:user) }
+
+    before { sign_in administration }
+
+    subject { delete :delete, params: { id: user.id } }
+
+    it 'deletes the user' do
+      subject
+
+      expect(User.find_by(id: user.id)).to be_nil
+    end
+  end
+end

spec/models/user_spec.rb

@@ -225,4 +225,35 @@ describe User, type: :model do
       it { is_expected.to be true }
     end
   end
+
+  describe '#delete_and_keep_track_dossiers' do
+    let(:administration) { create(:administration) }
+    let(:user) { create(:user) }
+
+    context 'avec un dossier en instruction' do
+      let!(:dossier_en_instruction) { create(:dossier, :en_instruction, user: user) }
+      it 'ne supprime rien si dossier en instruction' do
+
+        user.delete_and_keep_track_dossiers(administration)
+
+        expect(Dossier.find_by(id: dossier_en_instruction.id)).to be_present
+        expect(User.find_by(id: user.id)).to be_present
+      end
+
+    end
+
+    context 'sans dossier en instruction' do
+      let!(:dossier_en_construction) { create(:dossier, :en_construction, user: user) }
+      let!(:dossier_brouillon) { create(:dossier, user: user) }
+
+      it "garde une trace des dossiers et supprime l'utilisateur" do
+
+        user.delete_and_keep_track_dossiers(administration)
+
+        expect(DeletedDossier.find_by(dossier_id: dossier_en_construction)).to be_present
+        expect(DeletedDossier.find_by(dossier_id: dossier_brouillon)).to be_present
+        expect(User.find_by(id: user.id)).to be_nil
+      end
+    end
+  end
 end