feat(shopping): Rezept-Chips mit Portions-Stepper

src/lib/components/ShoppingCartChip.svelte

@@ -0,0 +1,75 @@
+<script lang="ts">
+  import { X, Minus, Plus } from 'lucide-svelte';
+  import type { ShoppingCartRecipe } from '$lib/server/shopping/repository';
+
+  let { recipe, onServingsChange, onRemove }: {
+    recipe: ShoppingCartRecipe;
+    onServingsChange: (id: number, servings: number) => void;
+    onRemove: (id: number) => void;
+  } = $props();
+
+  function dec() {
+    if (recipe.servings > 1) onServingsChange(recipe.recipe_id, recipe.servings - 1);
+  }
+  function inc() {
+    if (recipe.servings < 50) onServingsChange(recipe.recipe_id, recipe.servings + 1);
+  }
+</script>
+
+<div class="chip">
+  <a class="title" href={`/recipes/${recipe.recipe_id}`}>{recipe.title}</a>
+  <div class="controls">
+    <button aria-label="Portion weniger" onclick={dec} disabled={recipe.servings <= 1}>
+      <Minus size={16} />
+    </button>
+    <span class="val" aria-label="Portionen">{recipe.servings}p</span>
+    <button aria-label="Portion mehr" onclick={inc} disabled={recipe.servings >= 50}>
+      <Plus size={16} />
+    </button>
+    <button aria-label="Rezept aus Einkaufsliste entfernen" class="rm" onclick={() => onRemove(recipe.recipe_id)}>
+      <X size={16} />
+    </button>
+  </div>
+</div>
+
+<style>
+  .chip {
+    flex: 0 0 auto;
+    padding: 0.5rem 0.75rem;
+    background: white;
+    border: 1px solid #cfd9d1;
+    border-radius: 14px;
+    display: flex;
+    flex-direction: column;
+    gap: 0.35rem;
+    min-width: 140px;
+  }
+  .title {
+    color: #2b6a3d;
+    font-weight: 600;
+    font-size: 0.92rem;
+    text-decoration: none;
+    line-height: 1.2;
+    max-width: 160px;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+  }
+  .controls { display: flex; gap: 0.25rem; align-items: center; }
+  .controls button {
+    min-width: 32px;
+    min-height: 32px;
+    border-radius: 8px;
+    border: 1px solid #e4eae7;
+    background: white;
+    cursor: pointer;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    color: #444;
+  }
+  .controls button:disabled { opacity: 0.4; cursor: not-allowed; }
+  .controls button.rm { margin-left: auto; }
+  .controls button.rm:hover { color: #c53030; border-color: #f1b4b4; background: #fdf3f3; }
+  .val { min-width: 32px; text-align: center; font-weight: 600; color: #444; }
+</style>

src/routes/shopping-list/+page.svelte

@@ -3,6 +3,7 @@
   import { ShoppingCart } from 'lucide-svelte';
   import type { ShoppingListSnapshot } from '$lib/server/shopping/repository';
   import ShoppingListRow from '$lib/components/ShoppingListRow.svelte';
+  import ShoppingCartChip from '$lib/components/ShoppingCartChip.svelte';
   import type { ShoppingListRow as Row } from '$lib/server/shopping/repository';
   import { shoppingCartStore } from '$lib/client/shopping-cart.svelte';
 
@@ -30,6 +31,22 @@
     void shoppingCartStore.refresh();
   }
 
+  async function onServingsChange(recipeId: number, servings: number) {
+    await fetch(`/api/shopping-list/recipe/${recipeId}`, {
+      method: 'PATCH',
+      headers: { 'content-type': 'application/json' },
+      body: JSON.stringify({ servings })
+    });
+    await load();
+    void shoppingCartStore.refresh();
+  }
+
+  async function onRemoveRecipe(recipeId: number) {
+    await fetch(`/api/shopping-list/recipe/${recipeId}`, { method: 'DELETE' });
+    await load();
+    void shoppingCartStore.refresh();
+  }
+
   onMount(load);
 </script>
 
@@ -51,6 +68,11 @@
     <p class="hint">Lege Rezepte auf der Wunschliste in den Wagen, um sie hier zu sehen.</p>
   </section>
 {:else}
+  <div class="chips">
+    {#each snapshot.recipes as r (r.recipe_id)}
+      <ShoppingCartChip recipe={r} {onServingsChange} onRemove={onRemoveRecipe} />
+    {/each}
+  </div>
   <ul class="list">
     {#each snapshot.rows as row (row.name_key + '|' + row.unit_key)}
       <li>
@@ -76,4 +98,12 @@
     flex-direction: column;
     gap: 0.5rem;
   }
+  .chips {
+    display: flex;
+    gap: 0.5rem;
+    overflow-x: auto;
+    padding: 0.5rem 0;
+    margin: 0.5rem 0;
+    -webkit-overflow-scrolling: touch;
+  }
 </style>