Build a multi-file chart report

1import { mkdir, writeFile } from 'node:fs/promises';2import { join } from 'node:path';3import { ApexPainter } from 'apexify.js';4import { reportEntries } from './report-data.js';5 6const outputDir = process.env.APEXIFY_EXAMPLE_OUTPUT_DIR;7if (!outputDir) throw new Error('APEXIFY_EXAMPLE_OUTPUT_DIR is required.');8 9const painter = new ApexPainter({ type: 'buffer' });10const chartData = reportEntries.map((entry, index) => ({11  label: entry.label,12  value: entry.value,13  xStart: index,14  xEnd: index + 1,15  color: entry.color,16}));17const png = await painter.createChart('bar', chartData, { dimensions: { width: 640, height: 360 } });18const highest = [...reportEntries].sort((a, b) => b.value - a.value)[0]?.label ?? '';19const summary = { total: reportEntries.reduce((sum, entry) => sum + entry.value, 0), highest, entries: reportEntries.length };20 21await mkdir(outputDir, { recursive: true });22await writeFile(join(outputDir, 'report.png'), png);23await writeFile(join(outputDir, 'summary.json'), `${JSON.stringify(summary, null, 2)}\n`);24console.log(JSON.stringify({ example: 'node.integration.report', outputs: ['report.png', 'summary.json'], summary }));

1export interface ReportEntry {2  label: string;3  value: number;4  color: string;5}6 7export const reportEntries: ReportEntry[] = [8  { label: 'Docs', value: 80, color: '#6366f1' },9  { label: 'API', value: 60, color: '#8b5cf6' },10  { label: 'Gallery', value: 40, color: '#ec4899' },11];