// src/Illustrate/generateCover.ts
import path from 'path';
import { fileURLToPath } from 'url';
import { launchBrowser } from '../browser/browser.js';
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
// 基于标题生成封面图片
export async function generateCover(
title: string,
outputPath: string,
templateId: string = '1',
headless: boolean = true): Promise<string[]> {
// generateCover.js 在 dist/Illustrate/ 目录下，模板在 dist/templates/cover/ 目录下
const htmlPath = path.resolve(__dirname, '..', 'templates', 'cover', `template_${templateId}.html`);
const url = `file://${htmlPath}?title=${encodeURIComponent(title)}`;
const browser = await launchBrowser(headless, [
]);
try {
const page = await browser.newPage();
await page.setViewport({ width: 1080, height: 1620, deviceScaleFactor: 1 });
await page.goto(url, { waitUntil: 'networkidle0' });
await page.evaluate(() => {
const html = document.documentElement;
const body = document.body;
html.style.width = '1080px';
html.style.height = '1620px';
html.style.margin = '0';
html.style.padding = '0';
html.style.overflow = 'hidden';
body.style.width = '1080px';
body.style.height = '1620px';
body.style.margin = '0';
body.style.padding = '0';
body.style.overflow = 'hidden';
});
const timestamp = Date.now();
const coverPath = path.join(outputPath, `cover_${timestamp}.png`);
await new Promise(r => setTimeout(r, 500));
await page.screenshot({
path: coverPath as `${string}.png`,
fullPage: false,
clip: { x: 0, y: 0, width: 1080, height: 1620 }
});
return [coverPath];
} finally {
await browser.close();
}
}
