From debeada46849d4ae729b47c37d5990ea756bc46f Mon Sep 17 00:00:00 2001
From: TraceLumen <tracelumen@root-kit.ru>
Date: Sat, 5 Sep 2026 01:27:59 +0300
Subject: [PATCH] =?UTF-8?q?=D0=9F=D0=BE=D0=B4=D0=BA=D0=BB=D1=8E=D1=87?=
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---
 src/lib/PrintMenu.svelte | 635 ++++++++++++++++++++++-----------------
 vite.config.js           |   9 +
 2 files changed, 369 insertions(+), 275 deletions(-)

diff --git a/src/lib/PrintMenu.svelte b/src/lib/PrintMenu.svelte
index 6f83992..ec866b2 100644
--- a/src/lib/PrintMenu.svelte
+++ b/src/lib/PrintMenu.svelte
@@ -1,303 +1,372 @@
 <script>
-import { onDestroy, tick } from 'svelte';
-import SelectionPage from './preview/SelectionPage.svelte';
-import PreviewPage from './preview/PreviewPage.svelte';
+	import { onDestroy, tick } from 'svelte';
+	import SelectionPage from './preview/SelectionPage.svelte';
+	import PreviewPage from './preview/PreviewPage.svelte';
 
-let { onBack = () => {}, onPrint = () => {} } = $props();
+	let { onBack = () => {} } = $props();
 
-// ── Модель данных ──
-/** @typedef {{ id: number, file: File, previewUrl: string | null, fileType: 'image' | 'pdf' | 'other', expanded: boolean, format: 'A4' | 'A5', colorMode: 'bw' | 'color', qualityIndex: number, copies: number, pageRange: string, totalPages: number, selectedPages: Set<number>, pdfDoc: any }} FileEntry */
-/** @type {FileEntry[]} */
-let files = $state([]);
+	// ── Модель данных ──
+	/** @typedef {{ id: number, file: File, previewUrl: string | null, fileType: 'image' | 'pdf' | 'other', expanded: boolean, format: 'A4' | 'A5', colorMode: 'bw' | 'color', qualityIndex: number, copies: number, pageRange: string, totalPages: number, selectedPages: Set<number>, pdfDoc: any }} FileEntry */
+	/** @type {FileEntry[]} */
+	let files = $state([]);
 
-// ── Общие состояния оверлея ──
-/** @type {FileEntry | null} */
-let activeFile = $state(null);
-/** Режим просмотра: 'gallery' (выбор страниц) или 'preview' (чтение) */
-let viewMode = $state(/** @type {'gallery' | 'preview'} */ ('gallery'));
+	// ── Общие состояния оверлея ──
+	/** @type {FileEntry | null} */
+	let activeFile = $state(null);
+	/** Режим просмотра: 'gallery' (выбор страниц) или 'preview' (чтение) */
+	let viewMode = $state(/** @type {'gallery' | 'preview'} */ ('gallery'));
 
-// ── Данные для галереи (выбор страниц) ──
-let galleryThumbnails = $state([]);
-let galleryLoading = $state(false);
+	// ── Данные для галереи (выбор страниц) ──
+	let galleryThumbnails = $state([]);
+	let galleryLoading = $state(false);
 
-// ── Данные для превью (чтение) ──
-/** Кэшированные URL больших страниц для превью */
-let previewPagesCache = $state({});
-let isPreviewRendering = $state(false);
+	// ── Данные для превью (чтение) ──
+	/** Кэшированные URL больших страниц для превью */
+	let previewPagesCache = $state({});
+	let isPreviewRendering = $state(false);
 
-let uid = 0;
+	// ── Состояние кнопки печати ──
+	let isPrinting = $state(false);
 
-const qualities = [
-	{ id: 'low', label: 'Эконом' },
-	{ id: 'medium', label: 'Стандарт' },
-	{ id: 'high', label: 'Максимум' }
-];
-const formats = ['A4', 'A5'];
-const colorModes = [
-	{ id: 'bw', label: 'Чб' },
-	{ id: 'color', label: 'Цвет' }
-];
+	let uid = 0;
+	const PRICE_PER_PAGE = 9;
 
-// ── PDF.js Core ──
-async function loadPdfDocument(entry) {
-	if (entry.pdfDoc) return entry.pdfDoc;
-	try {
-		const pdfjsLib = await import('https://mozilla.github.io/pdf.js/build/pdf.mjs');
-		pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://mozilla.github.io/pdf.js/build/pdf.worker.mjs';
-		
-		const arrayBuffer = await entry.file.arrayBuffer();
-		const loadingTask = pdfjsLib.getDocument({ data: arrayBuffer });
-		const pdf = await loadingTask.promise;
-		
-		entry.pdfDoc = pdf;
-		entry.totalPages = pdf.numPages;
-		// Инициализируем выбранные страницы только если они еще не заданы
-		if (!entry.selectedPages || entry.selectedPages.size === 0) {
-			entry.selectedPages = new Set(Array.from({ length: pdf.numPages }, (_, i) => i + 1));
+	const qualities = [
+		{ id: 'low', label: 'Эконом' },
+		{ id: 'medium', label: 'Стандарт' },
+		{ id: 'high', label: 'Максимум' }
+	];
+	const formats = ['A4', 'A5'];
+	const colorModes = [
+		{ id: 'bw', label: 'Чб' },
+		{ id: 'color', label: 'Цвет' }
+	];
+
+	// ── Вспомогательная функция для реактивного обновления ──
+	function updateFile(id, changes) {
+		files = files.map(f => f.id === id ? { ...f, ...changes } : f);
+		if (activeFile && activeFile.id === id) {
+			activeFile = files.find(f => f.id === id);
 		}
-		return pdf;
-	} catch (err) {
-		console.error('PDF load error:', err);
-		entry.totalPages = 0;
-		return null;
 	}
-}
 
-async function renderPageToImage(pdfDoc, pageNum, scale = 1.0) {
-	const page = await pdfDoc.getPage(pageNum);
-	const viewport = page.getViewport({ scale });
-	const canvas = document.createElement('canvas');
-	const context = canvas.getContext('2d');
-	const outputScale = window.devicePixelRatio || 1;
-	
-	canvas.width = Math.floor(viewport.width * outputScale);
-	canvas.height = Math.floor(viewport.height * outputScale);
-	canvas.style.width = `${Math.floor(viewport.width)}px`;
-	canvas.style.height = `${Math.floor(viewport.height)}px`;
-	
-	const transform = outputScale !== 1 ? [outputScale, 0, 0, outputScale, 0, 0] : undefined;
-	
-	await page.render({
-		canvasContext: context,
-		viewport,
-		transform
-	}).promise;
-	
-	return canvas.toDataURL('image/jpeg', 0.85);
-}
-
-// ── Логика Галереи ──
-async function openPageGallery(entry) {
-	activeFile = entry;
-	viewMode = 'gallery';
-	galleryThumbnails = [];
-	galleryLoading = true;
-	previewPagesCache = {};
-	
-	await tick();
-	
-	// Используем уже загруженный документ или загружаем при необходимости
-	if (!entry.pdfDoc) await loadPdfDocument(entry);
-	
-	if (!entry.pdfDoc || entry.totalPages === 0) {
-		galleryLoading = false;
-		return;
-	}
-	
-	const thumbs = [];
-	for (let i = 1; i <= entry.totalPages; i++) {
+	// ── PDF.js Core ──
+	async function loadPdfDocument(entry) {
+		if (entry.pdfDoc) return entry.pdfDoc;
 		try {
-			const url = await renderPageToImage(entry.pdfDoc, i, 0.4);
-			thumbs.push(url);
-			galleryThumbnails = [...thumbs];
+			const pdfjsLib = await import('https://mozilla.github.io/pdf.js/build/pdf.mjs');
+			pdfjsLib.GlobalWorkerOptions.workerSrc = 'https://mozilla.github.io/pdf.js/build/pdf.worker.mjs';
+			const arrayBuffer = await entry.file.arrayBuffer();
+			const loadingTask = pdfjsLib.getDocument({ data: arrayBuffer });
+			const pdf = await loadingTask.promise;
+			
+			entry.pdfDoc = pdf;
+			
+			const numPages = pdf.numPages;
+			const allPages = new Set(Array.from({ length: numPages }, (_, i) => i + 1));
+
+			updateFile(entry.id, {
+				pdfDoc: pdf,
+				totalPages: numPages,
+				selectedPages: allPages
+			});
+
+			return pdf;
 		} catch (err) {
-			thumbs.push('');
-			galleryThumbnails = [...thumbs];
+			console.error('PDF load error:', err);
+			updateFile(entry.id, { totalPages: 0 });
+			return null;
 		}
 	}
-	galleryLoading = false;
-}
 
-// ── Логика Превью ──
-async function openPreview(entry) {
-	activeFile = entry;
-	viewMode = 'preview';
-	previewPagesCache = {};
-	galleryThumbnails = [];
-	
-	await tick();
-	
-	if (entry.fileType === 'pdf') {
-		// Документ должен быть уже загружен при добавлении файла, 
-		// но на всякий случай проверяем
-		if (!entry.pdfDoc) await loadPdfDocument(entry);
-		
-		// Берем totalPages из entry, которое было получено при добавлении файла
-		if (entry.totalPages > 0) {
-			preloadPreviewPages(entry, 1, 5);
+	async function renderPageToImage(pdfDoc, pageNum, scale = 1.0) {
+		const page = await pdfDoc.getPage(pageNum);
+		const viewport = page.getViewport({ scale });
+		const canvas = document.createElement('canvas');
+		const context = canvas.getContext('2d');
+		const outputScale = window.devicePixelRatio || 1;
+		canvas.width = Math.floor(viewport.width * outputScale);
+		canvas.height = Math.floor(viewport.height * outputScale);
+		canvas.style.width = `${Math.floor(viewport.width)}px`;
+		canvas.style.height = `${Math.floor(viewport.height)}px`;
+		const transform = outputScale !== 1 ? [outputScale, 0, 0, outputScale, 0, 0] : undefined;
+		await page.render({
+			canvasContext: context,
+			viewport,
+			transform
+		}).promise;
+		return canvas.toDataURL('image/jpeg', 0.85);
+	}
+
+	// ── Логика Галереи ──
+	async function openPageGallery(entry) {
+		activeFile = entry;
+		viewMode = 'gallery';
+		galleryThumbnails = [];
+		galleryLoading = true;
+		previewPagesCache = {};
+		await tick();
+
+		let pdfDoc = entry.pdfDoc;
+		if (!pdfDoc) {
+			pdfDoc = await loadPdfDocument(entry);
 		}
-	}
-}
 
-async function preloadPreviewPages(entry, startPage, count, direction = 'forward') {
-	if (!entry.pdfDoc || isPreviewRendering) return;
-	isPreviewRendering = true;
-	
-	let pagesToLoad = [];
-	if (direction === 'around') {
-		const half = Math.floor(count / 2);
-		const from = Math.max(1, startPage - half);
-		const to = Math.min(entry.totalPages, startPage + half);
-		for(let i = from; i <= to; i++) pagesToLoad.push(i);
-	} else {
-		const endPage = Math.min(startPage + count - 1, entry.totalPages);
-		for (let i = startPage; i <= endPage; i++) pagesToLoad.push(i);
-	}
-	
-	pagesToLoad = pagesToLoad.filter(p => !previewPagesCache[p]);
-	
-	if (pagesToLoad.length > 0) {
-		const newCacheEntries = {};
-		for (const pageNum of pagesToLoad) {
+		if (!pdfDoc || entry.totalPages === 0) {
+			galleryLoading = false;
+			return;
+		}
+
+		const thumbs = [];
+		for (let i = 1; i <= entry.totalPages; i++) {
 			try {
-				const url = await renderPageToImage(entry.pdfDoc, pageNum, 1.5);
-				newCacheEntries[pageNum] = url;
-			} catch (e) {
-				console.error(`Failed to render preview page ${pageNum}`, e);
+				const url = await renderPageToImage(pdfDoc, i, 0.4);
+				thumbs.push(url);
+				galleryThumbnails = [...thumbs];
+			} catch (err) {
+				thumbs.push('');
+				galleryThumbnails = [...thumbs];
 			}
 		}
-		if (Object.keys(newCacheEntries).length > 0) {
-			previewPagesCache = { ...previewPagesCache, ...newCacheEntries };
+		galleryLoading = false;
+	}
+
+	// ── Логика Превью ──
+	async function openPreview(entry) {
+		activeFile = entry;
+		viewMode = 'preview';
+		previewPagesCache = {};
+		galleryThumbnails = [];
+		await tick();
+		if (entry.fileType === 'pdf') {
+			let pdfDoc = entry.pdfDoc;
+			if (!pdfDoc) pdfDoc = await loadPdfDocument(entry);
+			
+			if (entry.totalPages > 0) {
+				preloadPreviewPages(entry, 1, 5);
+			}
 		}
 	}
-	isPreviewRendering = false;
-}
 
-function handlePreviewRequestPages(start, count, direction) {
-	if (activeFile) preloadPreviewPages(activeFile, start, count, direction);
-}
+	async function preloadPreviewPages(entry, startPage, count, direction = 'forward') {
+		const currentFile = files.find(f => f.id === entry.id);
+		const pdfDoc = currentFile ? currentFile.pdfDoc : entry.pdfDoc;
 
-// ── Общие функции закрытия ──
-function closeOverlay() {
-	activeFile = null;
-	galleryThumbnails = [];
-	previewPagesCache = {};
-}
-
-// ── Управление выбором страниц ──
-function togglePageSelection(pageNum) {
-	if (!activeFile?.selectedPages) return;
-	const newSet = new Set(activeFile.selectedPages);
-	if (newSet.has(pageNum)) {
-		if (newSet.size > 1) newSet.delete(pageNum);
-	} else {
-		newSet.add(pageNum);
+		if (!pdfDoc || isPreviewRendering) return;
+		isPreviewRendering = true;
+		
+		let pagesToLoad = [];
+		if (direction === 'around') {
+			const half = Math.floor(count / 2);
+			const from = Math.max(1, startPage - half);
+			const to = Math.min(entry.totalPages, startPage + half);
+			for(let i = from; i <= to; i++) pagesToLoad.push(i);
+		} else {
+			const endPage = Math.min(startPage + count - 1, entry.totalPages);
+			for (let i = startPage; i <= endPage; i++) pagesToLoad.push(i);
+		}
+		
+		pagesToLoad = pagesToLoad.filter(p => !previewPagesCache[p]);
+		
+		if (pagesToLoad.length > 0) {
+			const newCacheEntries = {};
+			for (const pageNum of pagesToLoad) {
+				try {
+					const url = await renderPageToImage(pdfDoc, pageNum, 1.5);
+					newCacheEntries[pageNum] = url;
+				} catch (e) {
+					console.error(`Failed to render preview page ${pageNum}`, e);
+				}
+			}
+			if (Object.keys(newCacheEntries).length > 0) {
+				previewPagesCache = { ...previewPagesCache, ...newCacheEntries };
+			}
+		}
+		isPreviewRendering = false;
 	}
-	activeFile.selectedPages = newSet;
-}
 
-function selectAllPages() {
-	if (!activeFile?.totalPages) return;
-	activeFile.selectedPages = new Set(Array.from({ length: activeFile.totalPages }, (_, i) => i + 1));
-}
+	function handlePreviewRequestPages(start, count, direction) {
+		if (activeFile) preloadPreviewPages(activeFile, start, count, direction);
+	}
 
-function deselectAllPages() {
-	if (!activeFile) return;
-	activeFile.selectedPages = new Set([1]);
-}
+	// ── Общие функции закрытия ──
+	function closeOverlay() {
+		activeFile = null;
+		galleryThumbnails = [];
+		previewPagesCache = {};
+	}
 
-function pagesLabel(entry) {
-	if (!entry.totalPages || entry.totalPages === 0) return 'Все';
-	if (!entry.selectedPages || entry.selectedPages.size === 0) return 'Все';
-	if (entry.selectedPages.size === entry.totalPages) return 'Все';
-	if (entry.selectedPages.size === 1) return `стр. ${[...entry.selectedPages][0]}`;
-	return `${entry.selectedPages.size} из ${entry.totalPages}`;
-}
+	// ── Управление выбором страниц ──
+	function togglePageSelection(pageNum) {
+		if (!activeFile?.selectedPages) return;
+		const newSet = new Set(activeFile.selectedPages);
+		if (newSet.has(pageNum)) {
+			if (newSet.size > 1) newSet.delete(pageNum);
+		} else {
+			newSet.add(pageNum);
+		}
+		updateFile(activeFile.id, { selectedPages: newSet });
+	}
 
-// ── Файловые операции ──
-let fileInput;
+	function selectAllPages() {
+		if (!activeFile?.totalPages) return;
+		const allPages = new Set(Array.from({ length: activeFile.totalPages }, (_, i) => i + 1));
+		updateFile(activeFile.id, { selectedPages: allPages });
+	}
 
-function detectFileType(file) {
-	if (!file) return 'other';
-	if (file.type.startsWith('image/')) return 'image';
-	if (file.type === 'application/pdf') return 'pdf';
-	return 'other';
-}
+	function deselectAllPages() {
+		if (!activeFile) return;
+		updateFile(activeFile.id, { selectedPages: new Set([1]) });
+	}
 
-async function handleFileSelect(event) {
-	const input = /** @type {HTMLInputElement} */(event.target);
-	const chosen = input.files;
-	if (!chosen || chosen.length === 0) return;
-	
-	for (let i = 0; i < chosen.length; i++) {
-		const fType = detectFileType(chosen[i]);
-		const entry = {
-			id: ++uid,
-			file: chosen[i],
-			previewUrl: URL.createObjectURL(chosen[i]),
-			fileType: fType,
-			expanded: false,
-			format: 'A4',
-			colorMode: 'bw',
-			qualityIndex: 1,
-			copies: 1,
-			pageRange: 'all',
-			totalPages: fType === 'image' ? 1 : 0,
-			selectedPages: fType === 'image' ? new Set([1]) : new Set(),
-			pdfDoc: null,
-		};
+	function pagesLabel(entry) {
+		if (!entry.totalPages || entry.totalPages === 0) return '...';
+		if (!entry.selectedPages || entry.selectedPages.size === 0) return 'Нет';
+		if (entry.selectedPages.size === entry.totalPages) return 'Все';
+		if (entry.selectedPages.size === 1) return `стр. ${[...entry.selectedPages][0]}`;
+		return `${entry.selectedPages.size} из ${entry.totalPages}`;
+	}
+
+	// ── Файловые операции ──
+	let fileInput;
+
+	function detectFileType(file) {
+		if (!file) return 'other';
+		if (file.type.startsWith('image/')) return 'image';
+		if (file.type === 'application/pdf') return 'pdf';
+		return 'other';
+	}
+
+	async function handleFileSelect(event) {
+		const input = /** @type {HTMLInputElement} */(event.target);
+		const chosen = input.files;
+		if (!chosen || chosen.length === 0) return;
 		
-		files.push(entry);
+		const newFiles = [];
+		for (let i = 0; i < chosen.length; i++) {
+			const fType = detectFileType(chosen[i]);
+			const entry = {
+				id: ++uid,
+				file: chosen[i],
+				previewUrl: URL.createObjectURL(chosen[i]),
+				fileType: fType,
+				expanded: false,
+				format: 'A4',
+				colorMode: 'bw',
+				qualityIndex: 1,
+				copies: 1,
+				pageRange: 'all',
+				totalPages: fType === 'image' ? 1 : 0,
+				selectedPages: fType === 'image' ? new Set([1]) : new Set(),
+				pdfDoc: null,
+			};
+			newFiles.push(entry);
+		}
 		
-		// ВАЖНО: Загружаем PDF сразу при добавлении, чтобы сохранить totalPages
-		if (fType === 'pdf') {
-			loadPdfDocument(entry);
+		files = [...files, ...newFiles];
+
+		for (const entry of newFiles) {
+			if (entry.fileType === 'pdf') {
+				loadPdfDocument(entry);
+			}
+		}
+		
+		input.value = '';
+	}
+
+	function triggerFileInput(event) {
+		event.preventDefault();
+		fileInput.click();
+	}
+
+	function toggleExpanded(file) { 
+		updateFile(file.id, { expanded: !file.expanded });
+	}
+
+	function removeFile(file) {
+		if (file.previewUrl) URL.revokeObjectURL(file.previewUrl);
+		files = files.filter((f) => f.id !== file.id);
+	}
+
+	// ── Опции печати ──
+	function toggleFormat(file, f) { updateFile(file.id, { format: f }); }
+	function toggleColor(file, c) { updateFile(file.id, { colorMode: c.id }); }
+	function incrementCopies(file) { updateFile(file.id, { copies: file.copies + 1 }); }
+	function decrementCopies(file) { if (file.copies > 1) updateFile(file.id, { copies: file.copies - 1 }); }
+	function qualityFillFor(file) { return Math.round((file.qualityIndex / (qualities.length - 1)) * 100); }
+	function updateQuality(file, val) { updateFile(file.id, { qualityIndex: val }); }
+
+	// ── Расчет цены ──
+	const totalPrice = $derived(() => {
+	    let sum = 0;
+	    for (const f of files) {
+	        const pagesCount = f.selectedPages ? f.selectedPages.size : 0;
+	        sum += pagesCount * f.copies;
+	    }
+	    return sum * PRICE_PER_PAGE;
+	});
+
+	const extraCopies = $derived(files.reduce((sum, f) => sum + (f.copies - 1), 0));
+
+	onDestroy(() => {
+		files.forEach((f) => { if (f.previewUrl) URL.revokeObjectURL(f.previewUrl); });
+	});
+
+	// ── Плюрализация ──
+	function pluralize(n, forms) {
+		const mod10 = n % 10, mod100 = n % 100;
+		if (mod10 === 1 && mod100 !== 11) return forms[0];
+		if (mod10 >= 2 && mod10 <= 4 && (mod100 < 10 || mod100 > 14)) return forms[1];
+		return forms[2];
+	}
+	const plFiles = (n) => pluralize(n, ['файл', 'файла', 'файлов']);
+	const plCopies = (n) => pluralize(n, ['копия', 'копии', 'копий']);
+
+	function handlePagesClick(file) {
+		if (file.fileType === 'pdf') openPageGallery(file);
+		else openPreview(file);
+	}
+
+	// ── НОВАЯ ФУНКЦИЯ: Отправка на сервер ──
+	async function submitPrint() {
+		if (files.length === 0 || isPrinting) return;
+
+		isPrinting = true;
+		const formData = new FormData();
+
+		for (const f of files) {
+			formData.append('files', f.file, f.file.name);
+			
+			const settings = {
+				filename: f.file.name,
+				pages: f.selectedPages ? Array.from(f.selectedPages).sort((a, b) => a - b).join(',') : 'all',
+				copies: f.copies,
+				colorMode: f.colorMode,
+				format: f.format
+			};
+			formData.append('settings', JSON.stringify(settings));
+		}
+
+		try {
+			const response = await fetch('/api/print', {
+				method: 'POST',
+				body: formData
+			});
+
+			const text = await response.text();
+
+			if (response.ok) {
+				alert(`✅ Успешно отправлено в печать!\n${text}`);
+			} else {
+				alert(`❌ Ошибка печати (${response.status}):\n${text}`);
+			}
+		} catch (error) {
+			console.error('Print submission error:', error);
+			alert(`⚠️ Не удалось связаться с сервером печати.`);
+		} finally {
+			isPrinting = false;
 		}
 	}
-	input.value = '';
-}
-
-function triggerFileInput(event) {
-	event.preventDefault();
-	fileInput.click();
-}
-
-function toggleExpanded(file) { file.expanded = !file.expanded; }
-
-function removeFile(file) {
-	if (file.previewUrl) URL.revokeObjectURL(file.previewUrl);
-	files = files.filter((f) => f.id !== file.id);
-}
-
-// ── Опции печати ──
-function toggleFormat(file, f) { file.format = f; }
-function toggleColor(file, c) { file.colorMode = c.id; }
-function incrementCopies(file) { file.copies += 1; }
-function decrementCopies(file) { if (file.copies > 1) file.copies -= 1; }
-function qualityFillFor(file) { return Math.round((file.qualityIndex / (qualities.length - 1)) * 100); }
-function pageStubFor() { return 0; }
-
-const totalPrice = $derived(`${files.reduce((sum, f) => sum + pageStubFor(f), 0)}₽`);
-const extraCopies = $derived(files.reduce((sum, f) => sum + (f.copies - 1), 0));
-
-onDestroy(() => {
-	files.forEach((f) => { if (f.previewUrl) URL.revokeObjectURL(f.previewUrl); });
-});
-
-// ── Плюрализация ──
-function pluralize(n, forms) {
-	const mod10 = n % 10, mod100 = n % 100;
-	if (mod10 === 1 && mod100 !== 11) return forms[0];
-	if (mod10 >= 2 && mod10 <= 4 && (mod100 < 10 || mod100 > 14)) return forms[1];
-	return forms[2];
-}
-const plFiles = (n) => pluralize(n, ['файл', 'файла', 'файлов']);
-const plCopies = (n) => pluralize(n, ['копия', 'копии', 'копий']);
-
-function handlePagesClick(file) {
-	if (file.fileType === 'pdf') openPageGallery(file);
-	else openPreview(file);
-}
 </script>
 
 {#if !activeFile}
@@ -306,7 +375,7 @@ function handlePagesClick(file) {
 		<button class="back-btn" onclick={onBack}>← Назад</button>
 		<h1>Печать</h1>
 	</header>
-	
+
 	<main class="options">
 		{#if files.length === 0}
 			<div class="empty-upload">
@@ -326,7 +395,7 @@ function handlePagesClick(file) {
 							<button type="button" class="icon-btn danger" onclick={() => removeFile(file)} title="Удалить">✕</button>
 						</span>
 					</div>
-					
+
 					{#if file.expanded}
 						<div class="file-options">
 							<div class="option-sub print-params-row">
@@ -345,7 +414,7 @@ function handlePagesClick(file) {
 									</div>
 								</div>
 							</div>
-							
+
 							<div class="option-sub">
 								<label class="option-title">Формат</label>
 								<div class="toggle-group horizontal">
@@ -354,7 +423,7 @@ function handlePagesClick(file) {
 									{/each}
 								</div>
 							</div>
-							
+
 							<div class="option-sub">
 								<label class="option-title">Цветность</label>
 								<div class="toggle-group horizontal">
@@ -363,10 +432,19 @@ function handlePagesClick(file) {
 									{/each}
 								</div>
 							</div>
-							
+
 							<div class="option-sub quality-sub">
 								<label class="option-title">Качество – {qualities[file.qualityIndex].label}</label>
-								<input type="range" min={0} max={qualities.length - 1} step={1} bind:value={file.qualityIndex} class="quality-slider" style="--fill: {qualityFillFor(file)}%" />
+								<input
+									type="range"
+									min={0}
+									max={qualities.length - 1}
+									step={1}
+									value={file.qualityIndex}
+									oninput={(e) => updateQuality(file, parseInt(e.target.value))}
+									class="quality-slider"
+									style="--fill: {qualityFillFor(file)}%"
+								/>
 								<div class="quality-marks-inline">
 									{#each qualities as q}<span class="quality-mark">{q.label}</span>{/each}
 								</div>
@@ -375,11 +453,10 @@ function handlePagesClick(file) {
 					{/if}
 				</section>
 			{/each}
-			
 			<button type="button" class="add-file-btn" onclick={triggerFileInput}>＋ Добавить файлы</button>
 		{/if}
 	</main>
-	
+
 	<footer class="actions">
 		{#if files.length > 0}
 			<p class="file-count">
@@ -389,9 +466,17 @@ function handlePagesClick(file) {
 		{/if}
 		<div class="price-summary">
 			<span class="summary-itogo">Итого</span>
-			<span class="summary-price">{totalPrice}</span>
+			<span class="summary-price">{totalPrice()}₽</span>
 		</div>
-		<button type="button" class="action-btn secondary" onclick={onPrint}>Печать</button>
+		<!-- ИЗМЕНЕННАЯ КНОПКА -->
+		<button 
+			type="button" 
+			class="action-btn secondary" 
+			onclick={submitPrint}
+			disabled={isPrinting || files.length === 0}
+		>
+			{isPrinting ? 'Отправка...' : 'Печать'}
+		</button>
 		<input type="file" bind:this={fileInput} accept="image/*,.pdf" multiple onchange={handleFileSelect} style="display:none" />
 	</footer>
 </div>
@@ -466,13 +551,13 @@ function handlePagesClick(file) {
 	.add-file-btn { align-self: center; background: none; border: 1px dashed rgba(255, 255, 255, 0.18); color: #a9b0c0; font-size: 14px; font-weight: 600; padding: 12px 18px; border-radius: 14px; cursor: pointer; margin-top: 8px; }
 	.actions { padding: 16px 20px 32px; display: flex; flex-direction: column; gap: 12px; }
 	.file-count { color: #8b93a1; font-size: 13px; margin: 0; text-align: center; line-height: 1.4; }
-	.action-btn { width: 100%; padding: 16px 24px; border-radius: 16px; font-size: 16px; font-weight: 700; cursor: pointer; border: none; color: #fff; }
+	.action-btn { width: 100%; padding: 16px 24px; border-radius: 16px; font-size: 16px; font-weight: 700; cursor: pointer; border: none; color: #fff; transition: opacity 0.2s; }
+	.action-btn:disabled { opacity: 0.6; cursor: wait; }
 	.action-btn.primary { background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%); box-shadow: 0 8px 24px -6px rgba(99, 102, 241, 0.5); }
 	.action-btn.secondary { background: linear-gradient(135deg, #5b8cff 0%, #38c6ff 100%); box-shadow: 0 8px 24px -6px rgba(72, 150, 255, 0.4); }
 	.price-summary { display: flex; justify-content: space-between; align-items: baseline; width: 100%; }
 	.summary-itogo { font-size: 30px; font-weight: 700; color: #8b93a1; }
 	.summary-price { font-size: 38px; font-weight: 800; color: #fff; }
-	
 	.overlay-backdrop {
 		position: fixed; inset: 0; z-index: 1000;
 		background: rgba(10, 12, 18, 0.92); backdrop-filter: blur(12px);
diff --git a/vite.config.js b/vite.config.js
index 1341769..f65f1c4 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -24,4 +24,13 @@ export default defineConfig({
       }
     })
   ],
+  server: {
+    proxy: {
+      '/api': {
+        target: 'http://localhost:3000',
+        changeOrigin: true,
+        rewrite: (path) => path.replace(/^\/api/, '')
+      }
+    }
+  }
 })