#!/usr/bin/env node

const fs = require("fs");
const glob = require("glob");
const chalk = require("chalk");

init();

function verifyDocumentationLinks(files) {
  let missing = 0;
  for (const file of files) {
    const text = fs.readFileSync(file, "utf-8");
    const regex = /docsUrl\((?:[\s\n]+)?"([^"]+)"/g;
    let match;
    while ((match = regex.exec(text))) {
      const [_, page, anchor] = match;
      const path = `./docs/${page}.md`;
      if (fs.existsSync(path)) {
        console.log(`Exists:  ${path}`);
      } else {
        console.log(chalk.red(`Missing: ${path}`));
        missing++;
      }
    }
  }
  if (missing > 0) {
    process.exit(missing);
  }
}

function verifyAllFiles() {
  glob("./{enterprise/,}frontend/src/**/*.{js,jsx,ts,tsx}", (err, files) => {
    if (err) {
      console.error(err);
      process.exit(1);
    }
    verifyDocumentationLinks(files);
  });
}

function init() {
  const stagedFiles = process.argv.slice(2);

  return stagedFiles.length
    ? verifyDocumentationLinks(stagedFiles)
    : verifyAllFiles();
}