const router = module.exports = require('express-promise-router')()
const parseJSON = require('body-parser').json()
const db = require('../db')

const {validationResult} = require('express-validator')
const validate = require('./middleware/validators')

router.get('/', async (req, res) => {
  const categories = await db.category.findAll()

  res.json(categories)
})

const newCategoryValidators = [
  validate.urlSlugRestrictions,
  validate.nameRestrictions,
  validate.descriptionRestrictions
]
router.post('/', parseJSON, newCategoryValidators, async (req, res) => {
  const errors = validationResult(req)

  if(!errors.isEmpty())
    return res.status(422).json({errors: errors.array()})

  const category = await db.category.create(
    req.body.name,
    req.body.urlslug,
    req.body.description
  )

  res.json(category)
})

router.put('/:category_uuid/items/:item_uuid', async (req, res) => {
  const category = await db.category.addItem(req.params.category_uuid, req.params.item_uuid);
  res.json(category)
})

router.delete('/:category_uuid/items/:item_uuid', async (req, res) => {
  const category = await db.category.removeItem(req.params.category_uuid, req.params.item_uuid);
  res.json(category)
})