'use strict';
import React from 'react';
import _ from 'lodash';
import c from 'classnames';

export function prettyPrint (obj) {
  return (
    <pre>{JSON.stringify(obj, null, '  ')}</pre>
  );
}

/**
 * Checks the fetching status of the input data.
 * @param Data structure as used by the reducer:
 *   {
 *     fetching: boolean,
 *     fetched: boolean,
 *     data: {}
 *     error: object | null
 *   }
 * @return Unified object with the combined result:
 *   {
 *     fetched: boolean
 *     fetching: boolean
 *     error: object | null
 *   }
 */
export function fetchStatus (...data) {
  let fetched = true;
  let fetching = false;
  let error = null;
  data.forEach(o => {
    // One not fetched and all is false.
    fetched = !o.fetched ? false : fetched;
    // One fetching and all is fetching.
    fetching = o.fetching ? true : fetching;
    error = o.error ? o.error : error;
  });

  return { fetched, fetching, error };
}

export function percent (value, total, decimals = 2) {
  let val = value / total * 100;
  return round(val, decimals);
}

export function round (value, decimals = 2) {
  return Math.round(value * Math.pow(10, decimals)) / Math.pow(10, decimals);
}

export function limitHelper (charLimit) {
  return (currLength) => {
    let remaining = charLimit - currLength;

    let cl = _.curry(c, 2)({
      'form__limit--near': remaining < 10,
      'form__limit--reached': remaining < 0
    });

    return { c: cl, remaining, isOk: () => remaining >= 0 };
  };
}

export function toTimeStr (value) {
  let remainder = value;
  let hours = Math.floor(remainder / 3600);
  remainder %= 3600;
  let minutes = Math.round(remainder / 60);
  // remainder %= 60;
  // let seconds = Math.round(remainder);

  let pieces = [];
  if (hours) {
    pieces.push(hours < 10 ? `0${hours}H` : `${hours}H`);
    pieces.push(minutes < 10 ? `0${minutes}M` : `${minutes}M`);
  } else if (minutes) {
    pieces.push(minutes < 10 ? `0${minutes}M` : `${minutes}M`);
  } else {
    return '<1M';
  }

  // if (seconds) {
  //   pieces.push(seconds < 10 ? `0${seconds}S` : `${seconds}S`);
  // }

  return pieces.join(' ');
}

@@ -1525,24 +1525,87 @@
 r (value) %7B%0A
+  if (isNaN(value) %7C%7C value === null) %7B%0A    return 'n/a';%0A  %7D%0A%0A
   let remain

Handle nulls on toTimeStr