add minimal working INSA endpoint

p/insa/example.js

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+'use strict'
+
+const createClient = require('../..')
+const insaProfile = require('.')
+
+const client = createClient(insaProfile)
+
+// from Magdeburg-Neustadt to Magdeburg-Buckau
+client.journeys('008010226', '008013456', {results: 1})
+// client.departures('008010226', {duration: 5})
+// client.locations('Magdeburg', {results: 2})
+// client.location('008010226') // Magdeburg-Neustadt
+// client.nearby({
+// 	type: 'location',
+// 	latitude: 52.148842,
+// 	longitude: 11.641705
+// }, {distance: 200})
+
+.then((data) => {
+	console.log(require('util').inspect(data, {depth: null}))
+})
+.catch(console.error)

p/insa/index.js

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+'use strict'
+
+const products = require('./products')
+const createParseBitmask = require('../../parse/products-bitmask')
+const createFormatBitmask = require('../../format/products-bitmask')
+
+const defaultProducts = {
+	nationalExp: true,
+	national: true,
+	regional: true,
+	suburban: true,
+	bus: true,
+	tram: true,
+	tourismTrain: true,
+}
+
+
+const transformReqBody = (body) => {
+	body.client = {
+		type: 'IPH',
+		id: 'NASA',
+		v: '4000200',
+		name: 'nasaPROD',
+		os: 'iPhone OS 11.2.5'
+	}
+	body.ver = '1.11'
+	body.auth = {aid: "nasa-apps"}
+	body.lang = 'en' // todo: `de`?
+
+	return body
+}
+
+
+
+const formatProducts = (products) => {
+	products = Object.assign(Object.create(null), defaultProducts, products)
+	return {
+		type: 'PROD',
+		mode: 'INC',
+		value: formatBitmask(products) + ''
+	}
+}
+
+const formatBitmask = createFormatBitmask(products)
+
+
+const insaProfile = {
+	locale: 'de-DE',
+	timezone: 'Europe/Berlin',
+	endpoint: 'http://reiseauskunft.insa.de/bin/mgate.exe',
+	products: products.allProducts,
+	transformReqBody,
+
+	defaultProducts,
+	parseProducts: createParseBitmask(products.bitmasks),
+	formatProducts
+
+	// todo: journeyLeg?
+	// todo: radar?
+}
+
+module.exports = insaProfile;

p/insa/products.js

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+'use strict'
+
+// TODO Jannis R.: DRY
+const p = {
+	nationalExp: {
+		bitmask: 1,
+		name: 'InterCityExpress',
+		short: 'ICE',
+		mode: 'train',
+		product: 'nationalExp'
+	},
+	national: {
+		bitmask: 2,
+		name: 'InterCity & EuroCity',
+		short: 'IC/EC',
+		mode: 'train',
+		product: 'national'
+	},
+	regional: {
+		bitmask: 8,
+		name: 'RegionalExpress & RegionalBahn',
+		short: 'RE/RB',
+		mode: 'train',
+		product: 'regional'
+	},
+	suburban: {
+		bitmask: 16,
+		name: 'S-Bahn',
+		short: 'S',
+		mode: 'train',
+		product: 'suburban'
+	},
+	tram: {
+		bitmask: 32,
+		name: 'Tram',
+		short: 'T',
+		mode: 'train',
+		product: 'tram'
+	},
+	bus: {
+		bitmask: 64+128,
+		name: 'Bus',
+		short: 'B',
+		mode: 'bus',
+		product: 'bus'
+	},
+	tourismTrain: {
+		bitmask: 256,
+		name: 'Tourism Train',
+		short: 'TT',
+		mode: 'train',
+		product: 'tourismTrain'
+	},
+	unknown: {
+		bitmask: 0,
+		name: 'unknown',
+		short: '?',
+		product: 'unknown'
+	}
+}
+
+p.bitmasks = []
+p.bitmasks[1] = p.nationalExp
+p.bitmasks[2] = p.national
+p.bitmasks[8] = p.regional
+p.bitmasks[16] = p.suburban
+p.bitmasks[32] = p.tram
+p.bitmasks[64+128] = p.bus
+p.bitmasks[256] = p.tourismTrain
+
+p.allProducts = [
+	p.nationalExp,
+	p.national,
+	p.regional,
+	p.suburban,
+	p.tram,
+	p.bus,
+	p.tourismTrain
+]
+
+module.exports = p

p/insa/readme.md

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+# INSA profile for `hafas-client`
+
+The [Nahverkehr Sachsen-Anhalt (NASA)](https://de.wikipedia.org/wiki/Nahverkehrsservice_Sachsen-Anhalt) offers [Informationssystem Nahverkehr Sachsen-Anhalt (INSA)](https://insa.de) to distribute their public transport data.
+
+## Usage
+
+```js
+const createClient = require('hafas-client')
+const insaProfile = require('hafas-client/p/insa')
+
+// create a client with INSA profile
+const client = createClient(insaProfile)
+```
+
+
+## Customisations
+
+- parses *INSA*-specific products (such as *Tourism Train*)