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# i3 config file (v4)
#
# Please see https://i3wm.org/docs/userguide.html for a complete reference!

set $mod Mod4

# Font for window titles. Will also be used by the bar unless a different font
# is used in the bar {} block below.
font pango:monospace 8

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const R = require('ramda');

const typeEncoder = (mode, type) => {
  if (mode !== 'fromDynamo' && mode !== 'toDynamo') {
    throw new Error('Invalid mode: ' + mode);
  }
  const numberEncoder = mode === 'fromDynamo' ? Number : String;
  switch (R.toUpper(type)) {
    case 'S': return String;
    case 'N': return numberEncoder;

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// Split an array every time the predicate returns true
// :: f => (array -> Boolean) -> f a -> f a
const segment = R.curry((fn, array) => {
  const chunks = [];
  let chunk = [];
  for (let value of array) {
    if (fn(value)) {
      chunks.push(chunk);
      chunk = [];
    }

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import R from 'ramda';

/*
  Convert JS maps to/from DynamoDB maps.
  http://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Programming.LowLevelAPI.html#Programming.LowLevelAPI.ResponseFormat
*/

// Convert DynamoDB data to/from JS data
// :: => 'fromDynamo' => dynamoType => dynamoValue => jsValue
// :: => 'toDynamo'   => dynamoType => jsValue => dynamoValue

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const uuid = () => { // Create a secure V4 UUID
    const randomHexChars = qty => crypto
        .randomBytes(Math.ceil(qty / 2))
        .toString('hex')
        .slice(0, qty);
    const reserved = ['8', '9', 'a', 'b'][crypto.randomBytes(1)[0] % 4];
    return [
        randomHexChars(8),
        randomHexChars(4),
        '4' + randomHexChars(3),

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import R from "ramda";

const mapWhile = R.curry((
  predicate, // while fn - receives current partial list & value, returns bool
  transformation, // map fn
  list // source list
) => R.reduce((oldAcc, oldVal) => {
  const newVal = transformation(oldVal);
  const newAcc = [ ...oldAcc, newVal ];
  return predicate(newAcc, newVal) ? newAcc : R.reduced(oldAcc);

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import R from "ramda";

const stringize = value => typeof value === "number" ? value + "" : value;

const orphanIds = R.compose(
    R.reduce((partial, pair) => [
        ...partial,
        pair[0],
        ...orphanIds(pair[1].children)
    ], []),

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// inst: unix epoch
const hist = {
    "channel1": [
        { inst: 10000, id: "a" },
        { inst: 20000, id: "b" },
        { inst: 30000, id: "c" },
        { inst: 30000, id: "d" },
        { inst: 40000, id: "e" }
    ]
};

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const curry = (fn, ...oldArgs) => (...newArgs) => {
    const args = [...oldArgs, ...newArgs];
    return (args.length < fn.length) ? curry(fn, ...args) : fn(...args);
};

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const compose = (...args) => initial => args.reduceRight(
    (result, fn) => fn(result),
    initial
);