add cover and some tweaks

2 months ago · 40adfb49c9
3 changed files with 73 additions and 5 deletions
--- a/cover.html
+++ b/cover.html
@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>Cover</title>
+    <style>
+        html, body{
+            height: 100%;
+            width: 100%;
+            margin: 0;
+            font-family: Helvetica, Arial, sans-serif;
+        }
+        body{
+            display: flex;
+            flex-flow: column;
+            justify-content: center;
+            align-items: center;
+        }
+        .subtitle{
+            font-weight: bold;
+            font-size: 1.2rem ;
+        }
+    </style>
+</head>
+<body>
+    <h1>{{title}}</h1>
+    <p class="subtitle">{{subtitle}}</p>
+    <p class="date">{{date}}</p>
+</body>
+</html>
--- a/index.js
+++ b/index.js
@ -1,9 +1,14 @@
 import puppeteer from 'puppeteer';
 import fs from 'fs';
 import moment from 'moment';
+import PDFMerger from 'pdf-merger-js';

-const [url, title = '', subtitle = ''] = process.argv.slice(2);
-const date = moment().format('YYYY-MM-DD');
+let [
+  url,
+  title = '',
+  subtitle = '',
+  date = moment().format('YYYY-MM-DD')
+] = process.argv.slice(2);

 const path = './pdf';

@ -29,8 +34,12 @@ try{
    new Promise(resolve => setTimeout(resolve,1000))
  ]);

-  await page.pdf({
-    path: `${path}/${date}_${title}.pdf`,
+  if (!title) title = await (await page.waitForSelector('h1')).evaluate(el => el.textContent);
+  if (!subtitle) subtitle = await (await page.waitForSelector('h2')).evaluate(el => el.textContent);
+  console.log(title,subtitle)
+
+  const pages = await page.pdf({
+    //path: `${path}/${date}_${title}_pages.pdf`,
    format: 'A4',
    margin: {
      top: '20mm',
@ -48,7 +57,7 @@ try{
        width: 100%;
        padding: 2mm;
        border-bottom: 1px #222 solid;
-      ">${[title, subtitle].join(' - ')}</div>
+      ">${[title, subtitle].map(el=>el.trim()).filter(el=>!!el).join(' - ')}</div>
    `,
    footerTemplate: `
      <div style="
@ -63,7 +72,35 @@ try{
    printBackground: true
  });

+  let coverHTML = fs.readFileSync('./cover.html', {encoding: 'utf-8', flag: 'r'});
+
+  Object.entries({
+    title, subtitle, date
+  }).forEach(([key, value]) => {
+    coverHTML = coverHTML.replaceAll(`{{${key}}}`, value);
+  });
+
+  const page2 = await browser.newPage();
+  await page2.setContent(coverHTML);
+
+  const cover = await page2.pdf({
+    //path: `${path}/${date}_${title}_cover.pdf`,
+    format: 'A4',
+    margin: {
+      top: '20mm',
+      bottom: '20mm',
+      left: '12mm',
+      right: '12mm'
+    }
+  });
+
  await browser.close();
+
+  const merger = new PDFMerger();
+  merger.add(cover);
+  merger.add(pages);
+  await merger.save(`${path}/${date}_${title.trim().replaceAll(' ', '_')}.pdf`)
+
 } catch (e) {
  if (browser) await browser.close();
  throw e;
--- a/package.json
+++ b/package.json
@ -12,6 +12,7 @@
  "license": "",
  "dependencies": {
    "moment": "^2.29.2",
+    "pdf-merger-js": "^3.4.0",
    "puppeteer": "^13.5.2"
  }
 }