require('dotenv').load()
const logger = require('./logger')
const createError = require('http-errors')
const express = require('express')
const path = require('path')
const cookieParser = require('cookie-parser')
const morgan = require('morgan')

const createdb = require('./db/createdb')
const tokenGetter = require('./daemons/getToken')
const saveToken = require('./lib/saveToken')
const indexRouter = require('./routes/index')

const app = express()

// view engine setup
app.set('views', path.join(__dirname, 'views'))
app.set('view engine', 'pug')


app.use(morgan('dev'))
app.use(express.json())
app.use(express.urlencoded({ extended: false }))
app.use(cookieParser())
app.use(express.static(path.join(__dirname, 'public')))

app.use('/', indexRouter)

// catch 404 and forward to error handler
app.use((req, res, next) => {
  next(createError(404))
})

// error handler

/* eslint-disable-next-line no-unused-vars */
app.use((err, req, res, next) => {
  // render the error page
  logger.error(err)
  res.status(err.status || 500)
  res.json({
    error: {
      stack: err.stack,
      message: err.message,
      status: err.status
    }
  })
})

module.exports = app

// INICIALIZACIÓN DE LA BASE DE DATOS
const dbnames = [
  process.env.DB_VALORACIONES,
  process.env.DB_UBICACIONES,
  process.env.DB_REPORTES,
  process.env.DB_NONCES,
  process.env.DB_TOKENS,
]

dbnames.forEach(name =>
  createdb(name)
    .then((result) => `Create DB "${name}" returned ${JSON.stringify(result)}`)
    .catch(err => {
      logger.error(`No se pudo crear la base de datos ${name}`)
      logger.error(err)
    })
)

// INICIALIZACIÓN DE LOS DEMONIOS

const token$ = tokenGetter(
  process.env.AUTH_TOKEN,
  process.env.CLIENT_SECRET,
  process.env.TOKEN_INTERVAL
)

token$.onValue(saveToken)
token$.onError((err) => {
  logger.error('Error en la recuperación de los tokens')
  logger.error(err)
})
token$.log()