feat: integrate barcode scanning functionality in 'Almoxarifado' for improved product search and registration, along with image upload support for enhanced inventory management

apps/web/src/lib/components/almoxarifado/ImageUpload.svelte

@@ -0,0 +1,197 @@
+<script lang="ts">
+	import { Image, Upload, X } from 'lucide-svelte';
+
+	interface Props {
+		value?: string | null;
+		onChange?: (base64: string | null) => void;
+		maxSizeMB?: number;
+		maxWidth?: number;
+		maxHeight?: number;
+	}
+
+	let {
+		value = $bindable(null),
+		onChange,
+		maxSizeMB = 5,
+		maxWidth = 1200,
+		maxHeight = 1200
+	}: Props = $props();
+
+	let preview = $state<string | null>(value);
+	let error = $state<string | null>(null);
+	let inputElement: HTMLInputElement | null = null;
+
+	function handleFileSelect(event: Event) {
+		const target = event.target as HTMLInputElement;
+		const file = target.files?.[0];
+		if (!file) return;
+
+		error = null;
+
+		// Validar tamanho
+		if (file.size > maxSizeMB * 1024 * 1024) {
+			error = `Arquivo muito grande. Tamanho máximo: ${maxSizeMB}MB`;
+			return;
+		}
+
+		// Validar tipo
+		if (!file.type.startsWith('image/')) {
+			error = 'Por favor, selecione um arquivo de imagem';
+			return;
+		}
+
+		const reader = new FileReader();
+
+		reader.onload = (e) => {
+			const result = e.target?.result as string;
+			if (result) {
+				// Redimensionar imagem se necessário
+				resizeImage(result, maxWidth, maxHeight)
+					.then((resized) => {
+						preview = resized;
+						value = resized;
+						if (onChange) {
+							onChange(resized);
+						}
+					})
+					.catch((err) => {
+						error = err instanceof Error ? err.message : 'Erro ao processar imagem';
+					});
+			}
+		};
+
+		reader.onerror = () => {
+			error = 'Erro ao ler arquivo';
+		};
+
+		reader.readAsDataURL(file);
+	}
+
+	function resizeImage(
+		dataUrl: string,
+		maxWidth: number,
+		maxHeight: number
+	): Promise<string> {
+		return new Promise((resolve, reject) => {
+			const img = new Image();
+			img.onload = () => {
+				let width = img.width;
+				let height = img.height;
+
+				// Calcular novas dimensões mantendo proporção
+				if (width > maxWidth || height > maxHeight) {
+					const ratio = Math.min(maxWidth / width, maxHeight / height);
+					width = width * ratio;
+					height = height * ratio;
+				}
+
+				const canvas = document.createElement('canvas');
+				canvas.width = width;
+				canvas.height = height;
+
+				const ctx = canvas.getContext('2d');
+				if (!ctx) {
+					reject(new Error('Não foi possível criar contexto do canvas'));
+					return;
+				}
+
+				ctx.drawImage(img, 0, 0, width, height);
+				const resizedDataUrl = canvas.toDataURL('image/jpeg', 0.85);
+				resolve(resizedDataUrl);
+			};
+
+			img.onerror = () => {
+				reject(new Error('Erro ao carregar imagem'));
+			};
+
+			img.src = dataUrl;
+		});
+	}
+
+	function removeImage() {
+		preview = null;
+		value = null;
+		if (inputElement) {
+			inputElement.value = '';
+		}
+		if (onChange) {
+			onChange(null);
+		}
+	}
+
+	function triggerFileInput() {
+		inputElement?.click();
+	}
+
+	$effect(() => {
+		preview = value;
+	});
+</script>
+
+<div class="image-upload">
+	<input
+		type="file"
+		accept="image/*"
+		class="hidden"
+		bind:this={inputElement}
+		onchange={handleFileSelect}
+		aria-label="Selecionar imagem do produto"
+	/>
+
+	{#if preview}
+		<div class="relative inline-block">
+			<img src={preview} alt="Preview da imagem do produto" class="max-w-full max-h-64 rounded-lg" />
+			<button
+				type="button"
+				class="btn btn-sm btn-circle btn-error absolute top-2 right-2"
+				onclick={removeImage}
+				aria-label="Remover imagem"
+			>
+				<X class="h-4 w-4" />
+			</button>
+		</div>
+	{:else}
+		<div
+			class="border-2 border-dashed border-base-300 rounded-lg p-8 text-center cursor-pointer hover:border-primary transition-colors"
+			onclick={triggerFileInput}
+			role="button"
+			tabindex="0"
+			onkeydown={(e) => {
+				if (e.key === 'Enter' || e.key === ' ') {
+					e.preventDefault();
+					triggerFileInput();
+				}
+			}}
+		>
+			<Upload class="h-12 w-12 mx-auto mb-4 text-base-content/40" />
+			<p class="text-base-content/70 font-medium mb-2">Clique para fazer upload da imagem</p>
+			<p class="text-sm text-base-content/50">
+				PNG, JPG ou GIF até {maxSizeMB}MB
+			</p>
+		</div>
+	{/if}
+
+	{#if error}
+		<div class="alert alert-error mt-4">
+			<span>{error}</span>
+		</div>
+	{/if}
+
+	{#if preview}
+		<button
+			type="button"
+			class="btn btn-sm btn-outline btn-primary mt-4"
+			onclick={triggerFileInput}
+		>
+			<Image class="h-4 w-4" />
+			Alterar Imagem
+		</button>
+	{/if}
+</div>
+
+<style>
+	.image-upload {
+		width: 100%;
+	}
+</style>
+