secret-santa-js/index.js

Terminal tool for randomly assigning hashed names to each other.

#!/usr/bin/env node
const secretSanta = (players) => {
  const partners = [...players]
  const draw = {}
  for (let i = 0; i < players.length; i++) {
    let player = players[i]
    let index = Math.floor(Math.random() * (partners.length))
    let partner = partners[index]
    while (partner == player) {
      index = Math.floor(Math.random() * (partners.length))
      partner = partners[index]
    }
    partners.splice(index, 1)
    draw[player] = btoa(partner)
  }
  return draw
}

const args = process.argv
args.splice(0, 2)

const draw = secretSanta(args)
for (const key in draw) {
  console.log(`Hello ${key},

You are the secret santa for ${draw[key]}

To decode, open up a web browser console and run

atob("${draw[key]}")

------------------------------------------------

`)
}