const router = require('express').Router()
const fs = require('node:fs')
const path = require('node:path')

const timer =
(time = 1000) =>
  (_req, _res, next) =>
    setTimeout(next, time)

router.use(timer())

const config = {
  examCreated: false
}

router.get('/course/list', (req, res) => {
  res.send(require('../mocks/courses/list/success.json'))
})

router.get('/course/:id', (req, res) => {
  if(req.params.id === 'undefined')
    return res.status(400).send({ success: false, error: 'Invalid course id' })
  
  if (config.examCreated) {
    config.examCreated = false
    return res.send(require('../mocks/courses/by-id/with-exam.json'))
  }
  res.send(require('../mocks/courses/by-id/success.json'))
})

router.get('/course/students/:courseId', (req, res) => {
  res.send(require('../mocks/courses/all-students/success.json'))
})

router.post('/course', (req, res) => {
  res.send(require('../mocks/courses/create/success.json'))
})

router.post('/course/toggle-exam-with-jury/:id', (req, res) => {
  config.examCreated = true;
  res.send({ success: true })
})

router.get('/lesson/list/:courseId', (req, res) => {
  res.send(require('../mocks/lessons/list/success.json'))
})

router.post('/lesson', (req, res) => {
  res.send(require('../mocks/lessons/create/success.json'))
})

router.post('/lesson/access-code', (req, res) => {
  const answer = fs.readFileSync(
    path.resolve(__dirname, '../mocks/lessons/access-code/create/success.json'),
  )
  // res.send(require('../mocks/lessons/access-code/create/success.json'))
  res.send(answer)
})

router.get('/lesson/access-code/:accessCode', (req, res) => {
  res.status(400).send(require('../mocks/lessons/access-code/get/error.json'))
})

router.get('/lesson/:lessonId', (req, res) => {
  res.send(require('../mocks/lessons/byid/success.json'))
})

router.delete('/lesson/:lessonId', (req, res) => {
  res.send({ success: true, body: { ok: true }})
})

router.put('/lesson', (req, res) => {
  res.send({ success: true, body: req.body })
})

module.exports = router