const fs = require('fs')
const path = require('path')
const glob = require('glob-fs')()
const moment = require('moment')
const matter = require('gray-matter')

const processFile = filename => {
  const fileObj = matter(fs.readFileSync(filename, 'utf8'))
  const dataObj = {
    content: fileObj.content,
    filename: path.basename(filename),
    slug: fileObj.data.title
      .toLowerCase()
      .replace(/ /g, '-')
      .replace(/[^\w-]+/g, ''),
    iso8601Date: moment(fileObj.data.date).format(),
    ...fileObj.data
  }

  return dataObj
}

module.exports.parse = dir => glob.readdirSync(dir).map(processFile)