craft-ai/lib/time.js

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.tzFromOffset = tzFromOffset;
exports.default = Time;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _errors = require('./errors');

var _moment = require('moment');

var _moment2 = _interopRequireDefault(_moment);

var _timezones = require('./timezones');

var _timezones2 = _interopRequireDefault(_timezones);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// From 'moment/src/lib/parse/regex.js'
var OFFSET_REGEX = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z

function tzFromOffset(offset) {
  if (_lodash2.default.isInteger(offset)) {
    var sign = offset >= 0 ? '+' : '-';
    var abs = Math.abs(offset);
    // If the offset belongs to [-15, 15] it is considered to represent hours
    // This reproduces Moment's utcOffset behaviour.
    if (abs < 16) return '' + sign + _lodash2.default.padStart(abs, 2, '0') + ':00';
    return '' + sign + _lodash2.default.padStart(Math.floor(abs / 60), 2, '0') + ':' + _lodash2.default.padStart(abs % 60, 2, '0');
  } else {
    return offset;
  }
}

function Time() {
  var t = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : undefined;
  var tz = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : undefined;

  // Make sure it works with or without new.
  if (!(this instanceof Time)) {
    return new Time(t, tz);
  }

  var m = void 0;
  if (t instanceof Time) {
    // t is an instance of Time
    m = _moment2.default.unix(t.timestamp);
    m.utcOffset(t.timezone);
  } else if (t instanceof _moment2.default) {
    // t is an instance of moment
    m = t;
  } else if (_lodash2.default.isDate(t)) {
    // t is a js Date
    m = (0, _moment2.default)(t);
  } else if (_lodash2.default.isNumber(t)) {
    // t is a posix timestamp
    // it might be a float as retrieved by Date.now() / 1000
    m = _moment2.default.unix(t);
  } else if (_lodash2.default.isString(t)) {
    // To make it consistent everywhere we only handle ISO 8601 format
    if (t.match(OFFSET_REGEX)) {
      // String with a explicit offset
      m = _moment2.default.parseZone(t, _moment2.default.ISO_8601);
    } else {
      // No explicit offset
      m = (0, _moment2.default)(t, _moment2.default.ISO_8601);
    }
  } else if (_lodash2.default.isUndefined(t)) {
    m = (0, _moment2.default)();
  }

  if (m === undefined || !m.isValid()) {
    throw new _errors.CraftAiTimeError('Time error, given "' + t + '" is invalid.');
  }

  if (tz) {
    // tz formats should be parseable by moment
    if (!(0, _timezones2.default)(tz)) {
      throw new _errors.CraftAiTimeError('Time error, the given timezone "' + tz + '" is invalid.\n      Please refer to the client\'s documentation to see accepted formats:\n      https://beta.craft.ai/doc/http#context-properties-types.');
    }
    m.utcOffset(_timezones.timezones[tz] || tz);
  }

  var minuteOffset = m.utcOffset();

  return _lodash2.default.extend(this, {
    timestamp: m.unix(),
    timezone: tzFromOffset(minuteOffset),
    time_of_day: m.hour() + m.minute() / 60 + m.second() / 3600,
    day_of_month: m.date(), // we want day to be in [1;31]
    month_of_year: m.month() + 1, // we want months to be in [1;12]
    day_of_week: m.isoWeekday() - 1, // we want week day to be in [0;6]
    utc: m.toISOString()
  });
}