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-module(pattern_matching_practice).
-export([test/0]).


xOr(X,X) ->
  false;
xOr(_,_) ->
  true.

exclusive_or(X, Y) when X =/= Y -> true;

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defmodule TransactionalMessagingService.Providers.Cheetah.Auth do
  @moduledoc """
  GenServer to handle all Cheetah auth token related functionality

  All requests to Cheetah require using a valid auth token in the request
  header, the tokens also expire after a certain time (currently 8 hours).
  Setup a GenServer to keep a active token in its state and manage retrieval
  of a new token when needed.

  This is accomplished by storing the token value and the calculated expiration

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// More advanced application using closures and pure functions
const randomNum = n => Math.floor(Math.random() * n);


const fillRandomArray = (len, range) => Array.from({length: len}, () => randomNum(range))

const sorterCreator = (length, ceiling) => {
  const buckets = {
    low: 0,
    mid: 0,

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//  a meaningful use of reducing an array to an object

//steps:
// 1. use function to generate random ints in [0,n); we'll be using 1500 here.
// 2. use another function to create an array of given length filled random ints in
// given range
// 3. declare an object to divide numbers into low, mid, and high buckets
// 4. reduce the array of random integers into the sorting object

//   using either anonymous or named callback

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var http = require('http');

var server = http.createServer(function(req, res) {
        // console.log(req);   // debug dump the request

        // If they pass in a basic auth credential it'll be in a header called "Authorization" (note NodeJS lowercases the names of headers in its request object)

        var auth = req.headers['authorization'];  // auth is in base64(username:password)  so we need to decode the base64
        console.log("Authorization Header is: ", auth);