import { existsSync, readFileSync } from 'node:fs';
import { dirname, join, resolve } from 'node:path';

const projectRoot = resolve(import.meta.dirname, '..');
const miniRoot = join(projectRoot, 'miniprogram');
const app = JSON.parse(readFileSync(join(miniRoot, 'app.json'), 'utf8'));
const allowedTags = new Set([
  'block',
  'button',
  'checkbox',
  'checkbox-group',
  'image',
  'input',
  'label',
  'picker',
  'rich-text',
  'scroll-view',
  'switch',
  'text',
  'textarea',
  'view',
]);
const failures = [];

for (const page of app.pages) {
  const base = join(miniRoot, page);
  for (const extension of ['.ts', '.json', '.wxml', '.wxss']) {
    if (!existsSync(`${base}${extension}`)) failures.push(`${page}${extension} 缺失`);
  }
  const wxml = readFileSync(`${base}.wxml`, 'utf8');
  if (!wxml.trim()) failures.push(`${page}.wxml 为空`);
  for (const match of wxml.matchAll(/<\/?([A-Za-z][A-Za-z0-9-]*)/g)) {
    if (!allowedTags.has(match[1])) failures.push(`${page}.wxml 使用不支持标签 <${match[1]}>`);
  }
  for (const match of wxml.matchAll(/<([A-Za-z][A-Za-z0-9-]*)\b([^>]*)>/g)) {
    const attributes = match[2];
    if (/\bwx:(?:elif|else)\b/.test(attributes) && /\bwx:for\b/.test(attributes)) {
      failures.push(
        `${page}.wxml 的 <${match[1]}> 不能同时使用 wx:elif/wx:else 与 wx:for，请用条件 block 包裹循环`,
      );
    }
  }
  const source = readFileSync(`${base}.ts`, 'utf8');
  for (const match of source.matchAll(
    /wx\.(?:navigateTo|redirectTo)\(\{\s*url:\s*[`'"]([^`'"]+)/g,
  )) {
    const target = match[1].split('?')[0].replace(/^\//, '');
    if (target.includes('${')) continue;
    if (!app.pages.includes(target)) failures.push(`${page}.ts 路由未注册：${target}`);
  }
}

if (failures.length) {
  console.error(failures.join('\n'));
  process.exit(1);
}
console.log(`小程序页面完整性检查通过：${app.pages.length} 个页面`);