(feat) allow to apply coupon in cart without login

app/controllers/api/coupons_controller.rb

@@ -3,7 +3,7 @@
 # API Controller for resources of type Coupon
 # Coupons are used in payments
 class API::CouponsController < API::ApiController
-  before_action :authenticate_user!
+  before_action :authenticate_user!, except: %i[validate]
   before_action :set_coupon, only: %i[show update destroy]
 
   # Number of notifications added to the page when the user clicks on 'load next notifications'
@@ -31,18 +31,18 @@ class API::CouponsController < API::ApiController
     if @coupon.nil?
       render json: { status: 'rejected' }, status: :not_found
     else
-      _user_id = if !current_user.admin?
-                   current_user.id
-                 else
+      _user_id = if current_user&.admin?
                    params[:user_id]
+                 else
+                   current_user&.id
                  end
 
       amount = params[:amount].to_f * 100.0
       status = @coupon.status(_user_id, amount)
-      if status != 'active'
-        render json: { status: status }, status: :unprocessable_entity
-      else
+      if status == 'active'
         render :validate, status: :ok, location: @coupon
+      else
+        render json: { status: status }, status: :unprocessable_entity
       end
     end
   end

app/frontend/src/javascript/components/cart/store-cart.tsx

@@ -194,7 +194,7 @@ const StoreCart: React.FC<StoreCartProps> = ({ onSuccess, onError, currentUser,
           <p>[TODO: texte venant des paramètres de la boutique…]</p>
         </div>
 
-        {cart && !cartIsEmpty() && cart.user &&
+        {cart && !cartIsEmpty() &&
           <div className='store-cart-coupon'>
             <CouponInput user={cart.user as User} amount={cart.total} onChange={applyCoupon} />
           </div>

app/frontend/src/javascript/components/coupon/coupon-input.tsx

@@ -1,4 +1,4 @@
-import React, { useState } from 'react';
+import React, { useState, useEffect } from 'react';
 import { useTranslation } from 'react-i18next';
 import { FabInput } from '../base/fab-input';
 import { FabAlert } from '../base/fab-alert';
@@ -28,6 +28,12 @@ export const CouponInput: React.FC<CouponInputProps> = ({ user, amount, onChange
   const [error, setError] = useState<boolean>(false);
   const [coupon, setCoupon] = useState<Coupon>();
 
+  useEffect(() => {
+    if (user && coupon) {
+      handleChange(coupon.code);
+    }
+  }, [user]);
+
   /**
    * callback for validate the code
    */