const assert = require("assert");
const fs = require("fs");
const path = require("path");

const pagesRoot = path.join(__dirname, "..", "pages");
const pageNames = fs.readdirSync(pagesRoot);

pageNames.forEach((pageName) => {
  const pageRoot = path.join(pagesRoot, pageName);
  const jsPath = path.join(pageRoot, `${pageName}.js`);
  const wxmlPath = path.join(pageRoot, `${pageName}.wxml`);
  if (!fs.existsSync(jsPath) || !fs.existsSync(wxmlPath)) return;

  const js = fs.readFileSync(jsPath, "utf8");
  const wxml = fs.readFileSync(wxmlPath, "utf8");
  const handlers = [...wxml.matchAll(/(?:bind|catch)[a-z]+="([A-Za-z0-9_]+)"/g)]
    .map((match) => match[1]);

  handlers.forEach((handler) => {
    assert.match(
      js,
      new RegExp(`\\n\\s{2}${handler}\\s*\\(`),
      `${pageName}.wxml references missing handler ${handler}`
    );
  });
});

console.log("page contract tests passed");