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path: root/src/routes/groceries/+page.svelte
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<script lang="ts">
	import { deserialize } from '$app/forms';
	import { goto } from '$app/navigation';
	import { enhance } from '$app/forms';
	import FuzzyAutocomplete from '$lib/components/FuzzyAutocomplete.svelte';
	import GroceryRow from '$lib/components/GroceryRow.svelte';
	import { groupByCategory } from '$lib/shared/group-by-category';
	import type { EnrichedGrocery } from '$lib/server/services/groceries';

	let { data, form } = $props();
	let name = $state('');
	// eslint-disable-next-line svelte/prefer-writable-derived
	let localItems = $state<EnrichedGrocery[]>([]);
	let addError = $state('');
	// Sync local list with server data when it changes externally (toggle, navigation)
	$effect(() => {
		localItems = data?.items ?? [];
	});

	async function handleAdd(redirectToEdit: boolean) {
		if (!name.trim()) {
			addError = 'Le nom est requis';
			return;
		}
		addError = '';

		const formData = new FormData();
		formData.append('name', name);

		const action = redirectToEdit ? '?/addAndEdit' : '?/add';
		name = '';

		try {
			const response = await fetch(action, {
				method: 'POST',
				headers: {
					accept: 'application/json',
					'x-sveltekit-action': 'true',
				},
				body: formData,
			});

			const result = deserialize(await response.text());

			if (result.type === 'error') {
				addError =
					typeof result.error === 'string'
						? result.error
						: result.error?.message || 'Erreur';
				return;
			}

			if (result.type === 'redirect') {
				goto(result.location);
				return;
			}

			if (result.type === 'success' && result.data?.items) {
				localItems = result.data.items as EnrichedGrocery[];
			}
		} catch (err) {
			addError = 'Erreur réseau';
			console.error(err);
		}
	}
</script>

<div class="grocery-add-bar">
	<FuzzyAutocomplete
		items={data.catalog}
		bind:value={name}
		placeholder="Ajouter un article..."
		onselect={(item) => {
			name = item.name;
			handleAdd(false);
		}}
	/>
	<button type="button" aria-label="Ajouter" onclick={() => handleAdd(false)}
		>+</button
	>
	<button type="button" aria-label="Modifier" onclick={() => handleAdd(true)}
		>&rarr;</button
	>
</div>

<main>
	{#if addError || form?.error}
		<p class="error">{addError || form?.error}</p>
	{/if}

	{#if localItems.length === 0}
		<p class="empty">Rien à acheter</p>
	{:else}
		<form method="POST" action="?/toggle" use:enhance>
			{#each groupByCategory(localItems, data.categories) as [cat, items] (cat)}
				<h3 class="category-name">{cat}</h3>
				<ul class="item-list">
					{#each items as item (item.id)}
						<GroceryRow {item} from="/groceries" />
					{/each}
				</ul>
			{/each}
		</form>
	{/if}
</main>

<style>
	.grocery-add-bar {
		display: flex;
		gap: 0.5rem;
		padding: 0.5rem 1rem;
		position: sticky;
		top: var(--nav-height);
		background: var(--bg);
		border-bottom: 1px solid var(--border);
		z-index: 10;
	}

	.grocery-add-bar button {
		width: 3rem;
		height: 3rem;
		flex-shrink: 0;
		padding: 0;
		border: none;
		border-radius: 0.75rem;
		font-size: 1.25rem;
		font-weight: 500;
		font-family: inherit;
		cursor: pointer;
		display: flex;
		align-items: center;
		justify-content: center;
		transition: all 0.2s ease;
	}

	.grocery-add-bar > button:nth-of-type(1) {
		background: var(--accent);
		color: var(--white);
		box-shadow: 0 1px 2px var(--shadow);
	}

	.grocery-add-bar > button:nth-of-type(1):hover {
		background: var(--accent-hover);
		transform: translateY(-1px);
		box-shadow: 0 4px 8px var(--shadow-accent-lg);
	}

	.grocery-add-bar > button:nth-of-type(2) {
		background: var(--surface);
		color: var(--text-secondary);
		border: 1.5px solid var(--border);
	}

	.grocery-add-bar > button:nth-of-type(2):hover {
		border-color: var(--accent);
		color: var(--text);
	}

	.error {
		margin-bottom: 1rem;
	}
</style>