module.exports = createApp

var express = require('express')

var session = require('express-session')

var uuid = require('node-uuid')

var cors = require('cors')

var LDP = require('./ldp')

var LdpMiddleware = require('./ldp-middleware')

var proxy = require('./handlers/proxy')

var IdentityProvider = require('./identity-provider')

var vhost = require('vhost')

var path = require('path')

var corsSettings = cors({

methods: [

'OPTIONS', 'HEAD', 'GET',

'PATCH', 'POST', 'PUT', 'DELETE'

],

exposedHeaders: 'User, Location, Link, Vary, Last-Modified, Content-Length',

credentials: true,

maxAge: 1728000,

origin: true

})

function createApp (argv) {

var ldp = new LDP(argv)

var app = express()

// Setting options as local variable

app.locals.ldp = ldp

var sessionSettings = {

secret: ldp.secret || uuid.v1(),

saveUninitialized: false,

resave: false

}

// Cookies should set to be secure if https is on

if (ldp.webid || ldp.idp) {

sessionSettings.cookie = {

secure: true

}

}

// Session

app.use(session(sessionSettings))

// Adding proxy

if (ldp.proxy) {

proxy(app, ldp.proxy)

}

// Adding Multi-user support

if (ldp.idp || ldp.createAdmin) {

var idp = IdentityProvider({

store: ldp,

suffixAcl: ldp.suffixAcl,

overwrite: ldp.createAdmin

})

app.use('/accounts', idp.middleware(corsSettings))

app.use('/', corsSettings, idp.get.bind(idp))

}

if (ldp.idp) {

app.use(vhost('*', LdpMiddleware(corsSettings)))

}

if (ldp.createAdmin) {

app.get('/', function (req, res) {

res.set('Content-Type', 'text/html')

var signup = path.resolve(__dirname + '/../static/signup.html')

res.sendFile(signup)

})

}

app.use('/', LdpMiddleware(corsSettings))

return app

}