const express = require('express')
const fs = require('fs')
const app = express()
const port = 3000
const repositoryDirectory = './user-content-access/'

app.set('view engine', 'pug')
app.set('views', './views')

const directoryExists = (path) => fs.existsSync(path) ? fs.statSync(path).isDirectory() : false

app.get('*', (req, res) => {
  
  let pathArray = req.path.split('/').filter((x) => x.length > 0)
  
  let pathIsValid = (pathArray) => {
    if (pathArray.length > 0) {
      if (directoryExists(repositoryDirectory + pathArray[0])) {
        if (directoryExists(repositoryDirectory + pathArray.join('/'))) {
           return true
        }
        else return false
      }
      else return false
    }
    else return false
  }
  
  if (pathIsValid(pathArray)) {
    
    var dirList = fs.readdirSync(repositoryDirectory + pathArray.join('/'), (err, files) => {
      if (err)
        console.log(err)
      else
        return files
    })
    
    res.render('index', {
      dirList: dirList
    })
  }

  else res.send('Repository does not exist.')
})

app.listen(port, () => {
  console.log(`Example app listening on port ${port}`)
})