code/test/JavaScript/0004472_fuzzify.js

/* Copyright 2017 Ronny Reichmann */
/* FUZZIFY Adjectify value ranges for later use in pattern matching */

function composeCheckFn (compareFn, adjective) {
  return nextCheckFn => {
    return value => {
      if (compareFn(value)) return adjective
      else return nextCheckFn(value)
    }
  }
}

function fuzzify (config) {
  const initializers = Object.keys(config)
    .map(adjective => {
      const compareFn = config[adjective]
      return composeCheckFn(compareFn, adjective)
    })
  initializers.reverse()
  return initializers.reduce((acc, initCheckFn) => initCheckFn(acc), v => v)
}

module.exports = fuzzify