Iisyourdad
a5bbdde480
Template tests / tests (push) Failing after 52s
- Native PDF exporter (cover, TOC, bookmarks, images, code, tables, text blocks); validated under Ghostscript - Animated GIF exporter (title card, title overlay, progress bar) - Image bundle exporter with watermark compositing - DOCX and PPTX emitters (hand-built OOXML over our zip writer) with structural + relationship + XML well-formedness validation in tests - Per-format template manager with .sfglt share archives - Unified export dispatcher covering all nine formats - 10 more workflow tests (52 total) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
55 lines
1.9 KiB
JavaScript
55 lines
1.9 KiB
JavaScript
'use strict';
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const fs = require('node:fs');
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const path = require('node:path');
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const { guideSlug, writeStepImages } = require('./common');
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const raster = require('../core/raster');
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const { decodePng, encodePng } = require('../core/png');
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/**
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* Image bundle exporter: one annotated PNG per image step plus a
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* metadata.json describing the guide, with an optional watermark overlay.
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*/
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const DEFAULT_TEMPLATE = {
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watermarkPath: '', // PNG overlaid bottom-right when set
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watermarkOpacity: 0.6,
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};
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function exportImageBundle(ast, outDir, template = {}) {
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const tpl = { ...DEFAULT_TEMPLATE, ...template };
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fs.mkdirSync(outDir, { recursive: true });
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const images = writeStepImages(ast, outDir);
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if (tpl.watermarkPath && fs.existsSync(tpl.watermarkPath)) {
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const mark = decodePng(fs.readFileSync(tpl.watermarkPath));
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const alpha = Math.round(255 * Math.max(0, Math.min(1, tpl.watermarkOpacity)));
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for (const { relPath } of images.values()) {
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const file = path.join(outDir, relPath);
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const img = decodePng(fs.readFileSync(file));
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const faded = raster.cloneImage(mark);
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for (let i = 3; i < faded.data.length; i += 4) {
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faded.data[i] = Math.round((faded.data[i] * alpha) / 255);
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}
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raster.drawImage(img, faded, Math.max(0, img.width - mark.width - 12), Math.max(0, img.height - mark.height - 12));
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fs.writeFileSync(file, encodePng(img));
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}
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}
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const meta = {
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format: 'stepforge-image-bundle',
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version: 1,
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guide: { title: ast.guide.title, generatedAt: ast.generatedAt },
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steps: ast.steps.map((step) => ({
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number: step.number,
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title: step.title,
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image: images.get(step.stepId)?.relPath || null,
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})),
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};
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const metaFile = path.join(outDir, `${guideSlug(ast)}-bundle.json`);
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fs.writeFileSync(metaFile, JSON.stringify(meta, null, 2) + '\n');
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return { file: metaFile, imageCount: images.size };
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}
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module.exports = { exportImageBundle, DEFAULT_TEMPLATE };
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