#!/usr/bin/env node

let filePath;

const fs = require('fs');
const path = require('path');

// @babel/register has to be required here because mixing commonjs and
// ESM modules as currently being done from this script isn't something
// that nodejs native ESM module loading does actually support.
require('@babel/register');
const schemaImport = require('../src/schema/firefox-schemas-import');

const firefoxDir = 'tmp/firefox';
const importedDir = 'src/schema/imported';
const updatesDir = 'src/schema/updates';

const arg = process.argv[2];

try {
  fs.statSync(arg);
  filePath = arg;
} catch (e) {
  // eslint-disable-next-line no-console
  console.error(`File not found: ${arg}\nUsage: ${process.argv[1]} filePath`);
  process.exit(1);
}

function emptyDir(dir, matching) {
  fs.readdirSync(dir).forEach((file) => {
    if (!matching || matching.test(file)) {
      fs.unlinkSync(path.join(dir, file));
    }
  });
}

try {
  fs.mkdirSync(firefoxDir);
} catch (e) {
  // The folder already existed, remove any old schema files.
  emptyDir(firefoxDir);
}

// Remove the old schema files.
emptyDir(importedDir, /.*\.json$/);
emptyDir(importedDir, /index\.js$/);

schemaImport
  .fetchSchemas({ inputPath: filePath, outputPath: firefoxDir })
  .then(() => {
    schemaImport.importSchemas(firefoxDir, updatesDir, importedDir);
  })
  .then(() => {
    emptyDir(firefoxDir);
    fs.rmdirSync(firefoxDir);
  })
  .catch((error) => {
    /* eslint-disable no-console */
    console.error(error.toString());
    console.error(error.stack);
    /* eslint-enable no-console */
    process.exit(2);
  });