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'use strict'
const Koa = require('koa')
const serve = require('koa-static')
const convert = require('koa-convert')
const serveIndex = require('koa-serve-index')
const morgan = require('koa-morgan')
const compress = require('koa-compress')
const streamLogStats = require('stream-log-stats')
/**
* @module local-web-server
*/
module.exports = getApp
process.on('unhandledRejection', (reason, p) => {
throw reason
})
function getApp (options) {
options = Object.assign({
static: {},
serveIndex: {},
logger: {},
compress: false
}, options)
const app = new Koa()
if (options.compress) {
console.log('comp');
app.use(convert(compress()))
}
let log = { format: options.logger.format }
if (options.logger.format) {
if (log.format === 'none'){
log.format = undefined
} else if (log.format === 'logstalgia') {
/* customised logger :date token, purely to satisfy Logstalgia. */
morgan.token('date', function () {
var d = new Date()
return (d.getDate() + '/' + d.getUTCMonth() + '/' + d.getFullYear() + ':' + d.toTimeString())
.replace('GMT', '').replace(' (BST)', '')
})
log.format = 'combined'
} else if (log.format) {
log.stream = process.stdout
}
} else {
log.format = 'common'
log.stream = streamLogStats({ refreshRate: 100 })
}
options.logger.options = options.logger.options || {}
options.logger.options.stream = log.stream
if (log.format) app.use(convert(morgan.middleware(log.format, options.logger.options)))
if (options.static.root) {
app.use(convert(serve(options.static.root, options.static.options)))
}
if (options.serveIndex.path) {
app.use(convert(serveIndex(options.serveIndex.path, options.serveIndex.options)))
}
return app
}