feat(shopping): clearCart

src/lib/server/shopping/repository.ts

@@ -187,6 +187,10 @@ export function clearCheckedItems(db: Database.Database): void {
   tx();
 }
 
-export function clearCart(_db: Database.Database): void {
-  throw new Error('not implemented');
+export function clearCart(db: Database.Database): void {
+  const tx = db.transaction(() => {
+    db.prepare('DELETE FROM shopping_cart_recipe').run();
+    db.prepare('DELETE FROM shopping_cart_check').run();
+  });
+  tx();
 }

tests/integration/shopping-repository.test.ts

@@ -7,7 +7,8 @@ import {
   listShoppingList,
   setCartServings,
   toggleCheck,
-  clearCheckedItems
+  clearCheckedItems,
+  clearCart
 } from '../../src/lib/server/shopping/repository';
 import type { Recipe } from '../../src/lib/types';
 
@@ -285,3 +286,21 @@ describe('clearCheckedItems', () => {
     expect(listShoppingList(db).recipes).toHaveLength(1);
   });
 });
+
+describe('clearCart', () => {
+  it('deletes all cart recipes and all checks', () => {
+    const db = openInMemoryForTest();
+    const id = insertRecipe(db, recipe({
+      ingredients: [{ position: 1, quantity: 1, unit: 'Stk', name: 'Apfel', note: null, raw_text: '', section_heading: null }]
+    }));
+    addRecipeToCart(db, id, null);
+    toggleCheck(db, 'apfel', 'stk', true);
+    clearCart(db);
+    const snap = listShoppingList(db);
+    expect(snap.recipes).toEqual([]);
+    expect(snap.rows).toEqual([]);
+    expect(snap.uncheckedCount).toBe(0);
+    const anyCheck = db.prepare('SELECT 1 FROM shopping_cart_check').get();
+    expect(anyCheck).toBeUndefined();
+  });
+});