engine_check.mjs

// image2strokes 自己的引擎体检：稳定入口存在、Worker 走入口、pipeline 真能跑。// 用法：node dev/engine_check.mjs// GitHub Actions 和本地都可以直接跑，不依赖浏览器。import fs from 'node:fs';import path from 'node:path';import { fileURLToPath, pathToFileURL } from 'node:url';const HERE = path.dirname(fileURLToPath(import.meta.url));const ROOT = path.resolve(HERE, '..');const ENGINE = path.join(ROOT, 'js/engine.js');const WORKER = path.join(ROOT, 'js/worker.js');const PIPELINE = path.join(ROOT, 'js/pipeline.js');let pass = 0, fail = 0;const ok = (name, cond, detail = '') => {  if (cond) { pass++; console.log(`  PASS ${name}${detail ? '  ' + detail : ''}`); }  else { fail++; console.log(`  FAIL ${name}${detail ? '  ' + detail : ''}`); }};ok('js/engine.js 存在', fs.existsSync(ENGINE));const src = fs.existsSync(ENGINE) ? fs.readFileSync(ENGINE, 'utf8') : '';const m = /pipeline\.js\?v=(\d+)/.exec(src);ok('engine.js 指向 pipeline.js', !!m, m ? `?v=${m[1]}` : '没找到');const a = /self\.ISP_PIPELINE\.api\s*=\s*(\d+)/.exec(src);ok('engine.js 声明 api', !!a, a ? `api=${a[1]}` : '没找到');ok('engine.js 处理了 ENGINE_BASE', /ISP_ENGINE_BASE/.test(src));const worker = fs.readFileSync(WORKER, 'utf8');ok('worker 走稳定入口', /importScripts\('engine\.js\?v=/.test(worker), 'worker.js');await import(pathToFileURL(PIPELINE).href);const P = globalThis.ISP_PIPELINE;ok('pipeline 导出 run', !!P && typeof P.run === 'function');if (P && typeof P.run === 'function') {  const W = 32, H = 32;  const px = new Uint8ClampedArray(W * H * 4);  const colors = [[220, 40, 40], [40, 160, 60], [40, 80, 200], [245, 240, 230]];  for (let y = 0; y < H; y++) {    for (let x = 0; x < W; x++) {      const c = colors[(y < H / 2 ? 0 : 2) + (x < W / 2 ? 0 : 1)];      const i = (y * W + x) * 4;      px[i] = c[0]; px[i + 1] = c[1]; px[i + 2] = c[2]; px[i + 3] = 255;    }  }  const res = await P.run(px, W, H, { colors: 4, style: 'marker', detail: 1, maxStrokes: 300, dropDead: false, returnKeys: false }, () => {});  ok('run 返回尺寸', res && res.W === W && res.H === H, res ? `${res.W}x${res.H}` : '空返回');  ok('run 有笔触', res && Array.isArray(res.strokes) && res.strokes.length > 0, res ? `${res.strokes.length} 笔` : '');  ok('run 有裁剪组', res && Array.isArray(res.clips));  const s = res && res.strokes && res.strokes[0];  ok('单笔结构', !!s && Array.isArray(s.rib) && Array.isArray(s.color));}console.log(`\n${pass} passed, ${fail} failed`);process.exit(fail ? 1 : 0);