chore: remove unused assets and polyfills, add puppeteer for CMYK export automation

2026-08-23 12:19:21 -03:00
1 parent 37971056c2
commit 8ad99a971d
@@ -0,0 +1,134 @@
+import { execSync } from "node:child_process";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { NextResponse } from "next/server";
+import puppeteer from "puppeteer";
+
+export const runtime = "nodejs";
+export const dynamic = "force-dynamic";
+
+export async function GET(request) {
+	const { searchParams } = new URL(request.url);
+	const modulo = searchParams.get("modulo") || "1";
+
+	const publicDir = path.resolve(process.cwd(), "public/formacoes", modulo);
+	const htmlFile = path.join(publicDir, "index.html");
+
+	if (!fs.existsSync(htmlFile)) {
+		return NextResponse.json(
+			{ error: `Módulo ${modulo} não encontrado.` },
+			{ status: 404 }
+		);
+	}
+
+	const tmpDir = os.tmpdir();
+	const tmpRgbPdf = path.join(tmpDir, `espdocs-mod-${modulo}-${Date.now()}-rgb.pdf`);
+	const tmpCmykPdf = path.join(tmpDir, `espdocs-mod-${modulo}-${Date.now()}-cmyk.pdf`);
+
+	let browser = null;
+	try {
+		browser = await puppeteer.launch({
+			headless: "new",
+			args: [
+				"--no-sandbox",
+				"--disable-setuid-sandbox",
+				"--disable-web-security",
+				"--allow-file-access-from-files"
+			]
+		});
+
+		const page = await browser.newPage();
+		await page.setViewport({ width: 1200, height: 1600, deviceScaleFactor: 2 });
+		await page.goto(`file://${htmlFile}`, { waitUntil: "networkidle0", timeout: 60000 });
+
+		// Aguarda o Paged.js concluir a montagem
+		await page.waitForFunction(() => {
+			const pages = document.querySelectorAll(".pagedjs_page");
+			return pages.length > 0 && !document.querySelector(".aviso-carregando");
+		}, { timeout: 30000 });
+
+		await new Promise((r) => setTimeout(r, 1000));
+
+		await page.pdf({
+			path: tmpRgbPdf,
+			format: "A4",
+			printBackground: true,
+			preferCSSPageSize: true,
+			margin: { top: 0, right: 0, bottom: 0, left: 0 }
+		});
+
+		await browser.close();
+		browser = null;
+
+		// Converte para CMYK (DeviceCMYK / ISO Coated)
+		const gsCmd = `gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sColorConversionStrategy=CMYK -dProcessColorModel=/DeviceCMYK -dCompatibilityLevel=1.4 -sOutputFile="${tmpCmykPdf}" "${tmpRgbPdf}"`;
+		execSync(gsCmd, { stdio: "pipe" });
+
+		const pdfBuffer = fs.readFileSync(tmpCmykPdf);
+
+		return new NextResponse(pdfBuffer, {
+			status: 200,
+			headers: {
+				"Content-Type": "application/pdf",
+				"Content-Disposition": `attachment; filename="LASER-ESP32-Modulo-${modulo}-CMYK.pdf"`,
+				"Content-Length": pdfBuffer.length.toString()
+			}
+		});
+	} catch (error) {
+		console.error("Erro na conversão CMYK:", error);
+		return NextResponse.json(
+			{ error: "Falha ao gerar PDF CMYK", details: error.message },
+			{ status: 500 }
+		);
+	} finally {
+		if (browser) await browser.close();
+		if (fs.existsSync(tmpRgbPdf)) fs.unlinkSync(tmpRgbPdf);
+		if (fs.existsSync(tmpCmykPdf)) fs.unlinkSync(tmpCmykPdf);
+	}
+}
+
+export async function POST(request) {
+	try {
+		const formData = await request.formData();
+		const file = formData.get("pdf");
+
+		if (!file) {
+			return NextResponse.json({ error: "Nenhum arquivo PDF enviado." }, { status: 400 });
+		}
+
+		const bytes = await file.arrayBuffer();
+		const buffer = Buffer.from(bytes);
+
+		const tmpDir = os.tmpdir();
+		const inputPath = path.join(tmpDir, `input-${Date.now()}.pdf`);
+		const outputPath = path.join(tmpDir, `cmyk-${Date.now()}.pdf`);
+
+		fs.writeFileSync(inputPath, buffer);
+
+		// Converte com Ghostscript
+		const gsCmd = `gs -dSAFER -dBATCH -dNOPAUSE -sDEVICE=pdfwrite -sColorConversionStrategy=CMYK -dProcessColorModel=/DeviceCMYK -dCompatibilityLevel=1.4 -sOutputFile="${outputPath}" "${inputPath}"`;
+		execSync(gsCmd, { stdio: "pipe" });
+
+		const outputBuffer = fs.readFileSync(outputPath);
+
+		// Limpa temporários
+		if (fs.existsSync(inputPath)) fs.unlinkSync(inputPath);
+		if (fs.existsSync(outputPath)) fs.unlinkSync(outputPath);
+
+		return new NextResponse(outputBuffer, {
+			status: 200,
+			headers: {
+				"Content-Type": "application/pdf",
+				"Content-Disposition": `attachment; filename="documento-CMYK.pdf"`,
+				"Content-Length": outputBuffer.length.toString()
+			}
+		});
+	} catch (error) {
+		console.error("Erro ao converter PDF POST:", error);
+		return NextResponse.json(
+			{ error: "Erro ao converter PDF para CMYK", details: error.message },
+			{ status: 500 }
+		);
+	}
+}