const fs = require('node:fs');
const path = require('node:path');
const crypto = require('node:crypto');
const Module = require('node:module');
const root = path.resolve(__dirname, '../halo');
const ts = require(path.join(root, 'node_modules/typescript'));
const sharp = require('./qr-test-tools/node_modules/sharp');
const jsQR = require('./qr-test-tools/node_modules/jsqr');
function loadSource(relative) {
  const filename = path.join(root, relative);
  const content = fs.readFileSync(filename, 'utf8');
  const compiled = ts.transpileModule(content, { compilerOptions: { module: ts.ModuleKind.CommonJS, esModuleInterop: true } }).outputText;
  const loaded = new Module(filename, module);
  loaded.filename = filename;
  loaded.paths = Module._nodeModulePaths(path.dirname(filename));
  loaded._compile(compiled, filename);
  return loaded.exports;
}
const { renderQrSvg, buildMatrix } = loadSource('lib/qr-render.ts');
const options = { value: 'https://halo.wezzik.app/guide', fgColor: '#111111', bgColor: '#ffffff', gradientKind: 'none', gradientFrom: '#111111', gradientTo: '#111111', pattern: 'squares', errorCorrection: 'M', logoDataUrl: null, frameEnabled: false, frameText: '', frameColor: '#111111', transparentBackground: false, size: 640 };
const cases = [
  { id: 'baseline-white', label: '深色模块与白色背景', transparent: false, background: '#ffffff', size: 640 },
  { id: 'transparent-white', label: '透明文件叠放在白色底板', transparent: true, background: '#ffffff', size: 640 },
  { id: 'transparent-dark', label: '同一透明文件叠放在与模块同色的背景', transparent: true, background: '#111111', size: 640 },
  { id: 'small-raster', label: '基础版本缩小至三十二像素后再放大', transparent: false, background: '#ffffff', size: 32 },
];
(async () => {
  const directory = path.join(root, 'public/evidence/2026-09-14');
  fs.mkdirSync(directory, { recursive: true });
  const results = [];
  for (const test of cases) {
    const svg = renderQrSvg({ ...options, transparentBackground: test.transparent });
    fs.writeFileSync(path.join(directory, `${test.id}.svg`), svg);
    const png = await sharp(Buffer.from(svg)).resize(test.size, test.size).flatten({ background: test.background }).png().toBuffer();
    fs.writeFileSync(path.join(directory, `${test.id}.tested.png`), png);
    const { data, info } = await sharp(png).ensureAlpha().raw().toBuffer({ resolveWithObject: true });
    const decoded = jsQR(new Uint8ClampedArray(data), info.width, info.height, { inversionAttempts: 'attemptBoth' });
    const display = await sharp(png).resize(640, 640, { kernel: 'nearest' }).png().toBuffer();
    fs.writeFileSync(path.join(directory, `${test.id}.png`), display);
    results.push({ id: test.id, label: test.label, decoded: decoded?.data || null, matches: decoded?.data === options.value, inputSize: test.size, image: `/evidence/2026-09-14/${test.id}.png`, testedPng: `/evidence/2026-09-14/${test.id}.tested.png`, svg: `/evidence/2026-09-14/${test.id}.svg`, testedPngSha256: crypto.createHash('sha256').update(png).digest('hex') });
  }
  const report = { testedAt: new Date().toISOString(), environment: { node: process.version, platform: `${process.platform}/${process.arch}`, sharp: '0.34.5', decoder: 'jsQR 1.4.0', qrcode: require(path.join(root, 'node_modules/qrcode/package.json')).version }, payload: options.value, modules: buildMatrix(options.value, options.errorCorrection).size, quietZoneModules: 4, options, rendererSha256: crypto.createHash('sha256').update(fs.readFileSync(path.join(root, 'lib/qr-render.ts'))).digest('hex'), scope: '实际应用的矢量渲染器，经软件栅格化后自动解码；没有测试浏览器画布下载、手机或纸张。展示图片在测试后放大，原测试尺寸另行记录。', results };
  fs.writeFileSync(path.join(directory, 'report.json'), JSON.stringify(report, null, 2));
  fs.copyFileSync(path.join(root, 'lib/qr-render.ts'), path.join(directory, 'qr-render.ts.txt'));
  fs.copyFileSync(__filename, path.join(directory, 'verify-qr-evidence.cjs.txt'));
  console.log(JSON.stringify(report, null, 2));
  if (!results[0].matches || !results[1].matches) throw new Error('正常对照版本未通过，必须调查而非写成成功');
})().catch(error => { console.error(error); process.exitCode = 1; });