Applicatie afmaken en GUI-flow herstellen

Voegt boodschappenlijsten, productbeheer, realtime synchronisatie en browsercache-updates toe. Herstelt login- en sessiegedrag en maakt database-seeding herhaalbaar.\n\nCo-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

database/seed.js

@@ -2,106 +2,42 @@ require("dotenv").config();
 
 const db = require("../config/database");
 
-
 const categories = [
-
     ["Groente", "🥬"],
-
     ["Fruit", "🍎"],
-
     ["Zuivel", "🥛"],
-
     ["Brood", "🍞"],
-
     ["Dranken", "🥤"],
-
     ["Huishouden", "🧻"]
-
 ];
 
 const products = [
-
-    [
-        "Melk",
-        3
-    ],
-
-    [
-        "Bananen",
-        2
-    ],
-
-    [
-        "Brood",
-        4
-    ],
-
-    [
-        "Koffie",
-        5
-    ],
-
-    [
-        "WC papier",
-        6
-    ]
-
+    ["Melk", "Zuivel"],
+    ["Bananen", "Fruit"],
+    ["Brood", "Brood"],
+    ["Koffie", "Dranken"],
+    ["WC papier", "Huishouden"]
 ];
 
+const insertCategory = db.prepare(`
+    INSERT OR IGNORE INTO categories (name, icon) VALUES (?, ?)
+`);
 
 const insertProduct = db.prepare(`
-
-INSERT OR IGNORE INTO products
-
-(
-    name,
-    category_id
-)
-
-VALUES (?,?)
-
+    INSERT OR IGNORE INTO products (name, category_id) VALUES (?, ?)
 `);
 
-
-
-
-const seedProducts = db.transaction(() => {
-
-
-    for(const product of products){
-
-        insertProduct.run(product);
-
-    }
-
-
-});
-
-
-seedProducts();
-
-const insert = db.prepare(`
-
-INSERT OR IGNORE INTO categories
-(name, icon)
-
-VALUES (?,?)
-
-`);
-
-
-const seed = db.transaction(() => {
-
+db.transaction(() => {
     for (const category of categories) {
-
-        insert.run(category);
-
+        insertCategory.run(category);
     }
 
-});
+    for (const [name, categoryName] of products) {
+        const category = db.prepare(
+            "SELECT id FROM categories WHERE name = ?"
+        ).get(categoryName);
+        insertProduct.run(name, category.id);
+    }
+})();
 
-
-seed();
-
-
-console.log("Seed voltooid.");
+console.log("Seed voltooid.");