require('dotenv').config()

const { send } = require('micro')
const files = require('serve-handler')

const robotsTxt =
`User-agent: *
Disallow: /
`

const staticPaths = [ '/css', '/images', '/archive' ]

function isStaticPath(req) {
  const url = req.url
  for (let i = 0; i < staticPaths.length; i++) {
    if (url.match(new RegExp(`^${staticPaths[i]}`))) {
      return true
    }
  }
  return false
}

const match = require('fs-router')(__dirname + '/routes', { 
  filter: (f) => {
    let p = f.slice(__dirname.length + "/routes".length)
    return !isStaticPath({ url: p })
  }
})

module.exports = async function(req, res) {
  if (isStaticPath(req)) return await files(req, res, { public: 'routes' })
  let matched = match(req)
  if (matched) return await matched(req, res)
  if (req.url === '/robots.txt') return send(res, 200, robotsTxt)
  return send(res, 404, { error: 'Not found' })
}