swipe, zoeken op producten, beter toevoegen in lijsten

controllers/ShoppingListController.js

@@ -1,6 +1,7 @@
 const ProductRepository = require("../repositories/ProductRepository");
 const ShoppingListRepository = require("../repositories/ShoppingListRepository");
 const FavoriteService = require("../services/FavoriteService");
+const CategoryService = require("../services/CategoryService");
 
 class ShoppingListController {
     index(req, res) {
@@ -23,11 +24,15 @@ class ShoppingListController {
     show(req, res) {
         const list = ShoppingListRepository.findById(req.params.id, req.user.household_id);
         if (!list) return res.status(404).render("errors/404");
+        const items = ShoppingListRepository.getItems(list.id, req.user.household_id);
+        const existingProductIds = new Set(items.map(item => item.product_id));
         res.locals.title = list.name;
         res.render("lists/show", {
             list,
-            items: ShoppingListRepository.getItems(list.id, req.user.household_id),
-            products: ProductRepository.getAll(req.user.household_id),
+            items,
+            products: ProductRepository.getAll(req.user.household_id)
+                .filter(product => !existingProductIds.has(product.id)),
+            categories: CategoryService.getCategories(req.user.household_id),
             user: req.user
         });
     }
@@ -39,7 +44,8 @@ class ShoppingListController {
         const product = Number.isInteger(productId)
             ? ProductRepository.findById(productId, req.user.household_id)
             : null;
-        if (!list || !product || !Number.isFinite(amount) || amount <= 0) {
+        if (!list || !product || ShoppingListRepository.hasProduct(list.id, product.id) ||
+            !Number.isFinite(amount) || amount <= 0) {
             req.flash("error", "Ongeldig product of ongeldige hoeveelheid");
             return res.redirect(`/lists/${req.params.id}`);
         }
@@ -47,6 +53,25 @@ class ShoppingListController {
         res.redirect(`/lists/${list.id}`);
     }
 
+    updateItemAmount(req, res) {
+        const list = ShoppingListRepository.findById(req.params.id, req.user.household_id);
+        const amount = Number.parseFloat(req.body.amount || "");
+        if (!list || !Number.isFinite(amount) || amount <= 0) {
+            req.flash("error", "Geef een geldige hoeveelheid op.");
+            return res.redirect(`/lists/${req.params.id}`);
+        }
+
+        const result = ShoppingListRepository.updateItemAmount(list.id, req.params.itemId, amount);
+        if (result.changes === 0) {
+            req.flash("error", "Product niet gevonden op deze lijst.");
+            return res.redirect(`/lists/${req.params.id}`);
+        }
+
+        this.broadcastUpdate(req, list.id);
+        req.flash("success", "Hoeveelheid gewijzigd.");
+        res.redirect(`/lists/${list.id}`);
+    }
+
     toggleItem(req, res) {
         const list = ShoppingListRepository.findById(req.params.id, req.user.household_id);
         if (!list) return res.status(404).render("errors/404");