import { readFileAsync } from './entry';
import path from 'path';
import frontmatter from 'front-matter';

const imp = (data, file, importHandler) => {
  const d = data
    .split(/\\import\((.+)\)/g)
    .map((da, index) =>
      index % 2 === 0
        ? Promise.resolve(da)
        : readFileAsync(path.join(path.dirname(file), da)).then(data =>
            importHandler(frontmatter(data))
          )
    );

  Promise.all(d).then(console.log);
  return Promise.all(d).then(d => d.join('\n'));
};

export default imp;