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var path = require('path')
var createError = require('http-errors')
var express = require('express')
var cookieParser = require('cookie-parser')
var compression = require('compression')
var fileUpload = require('express-fileupload')

process.env.TZ = 'Europe/Berlin'

var app = express()

global.__appdir = __dirname

// Read permissions from JSON and update the database
require('./lib/permissions/index.js')

// ############################################################################
// ########################### setup middleware ###############################

app.use(compression())
app.use(express.json({ limit: '50mb' }))
app.use(express.urlencoded({ extended: false }))

var logger = require('morgan')
app.use(logger('dev'))
app.use(cookieParser())
app.use(fileUpload())

// ############################################################################
// ########################### setup routes  ##################################

var apiRouter = require(path.join(__dirname, 'router'))
app.use('/api', apiRouter)

app.use('/files', express.static('public_files'))
app.use('/documentation', express.static('public_documentation'))

app.use(express.static('public'))
app.use('*', express.static('public'))

// ############################################################################
// ######################### handle http errors ###############################

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

// error handler
app.use(function (err, req, res, next) {
  console.log(err)

  // set locals, only providing error in development
  res.locals.message = err.message
  res.locals.error = req.app.get('env') === 'development' ? err : {}

  // render the error page
  res.status(err.status || 500)
  res.end()
})

// ############################################################################
// ############################################################################

module.exports = app