kiss-date/lib/index.js

keep it simple stupid date library

(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define(["exports", "core-js/modules/es.array.concat.js", "core-js/modules/es.string.pad-start.js", "core-js/modules/es.object.to-string.js", "core-js/modules/es.regexp.to-string.js", "core-js/modules/es.regexp.exec.js", "core-js/modules/es.string.split.js", "@babel/runtime/helpers/classCallCheck", "@babel/runtime/helpers/createClass"], factory);
  } else if (typeof exports !== "undefined") {
    factory(exports, require("core-js/modules/es.array.concat.js"), require("core-js/modules/es.string.pad-start.js"), require("core-js/modules/es.object.to-string.js"), require("core-js/modules/es.regexp.to-string.js"), require("core-js/modules/es.regexp.exec.js"), require("core-js/modules/es.string.split.js"), require("@babel/runtime/helpers/classCallCheck"), require("@babel/runtime/helpers/createClass"));
  } else {
    var mod = {
      exports: {}
    };
    factory(mod.exports, global.esArrayConcat, global.esStringPadStart, global.esObjectToString, global.esRegexpToString, global.esRegexpExec, global.esStringSplit, global.classCallCheck, global.createClass);
    global.index = mod.exports;
  }
})(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : this, function (_exports, _esArrayConcat, _esStringPadStart, _esObjectToString, _esRegexpToString, _esRegexpExec, _esStringSplit, _classCallCheck2, _createClass2) {
  "use strict";

  var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

  Object.defineProperty(_exports, "__esModule", {
    value: true
  });
  _exports.Time = _exports.default = void 0;
  _classCallCheck2 = _interopRequireDefault(_classCallCheck2);
  _createClass2 = _interopRequireDefault(_createClass2);

  var KissDate = /*#__PURE__*/function () {
    function KissDate(date, timezone) {
      (0, _classCallCheck2.default)(this, KissDate);
      this.dateArr = void 0;
      var kissDateTimezone = typeof timezone === 'string' ? KissDate.getTimezone(timezone) : timezone !== null && timezone !== void 0 ? timezone : null;

      if (typeof date === 'number') {
        this.dateArr = [date, kissDateTimezone !== null && kissDateTimezone !== void 0 ? kissDateTimezone : -new Date().getTimezoneOffset() * Time.Minute];
      } else if (Array.isArray(date)) {
        this.dateArr = [date[0], kissDateTimezone !== null && kissDateTimezone !== void 0 ? kissDateTimezone : date[1]];
      } else if (date instanceof Date) {
        this.dateArr = [Math.floor(date.getTime() * Time.Millisecond), kissDateTimezone !== null && kissDateTimezone !== void 0 ? kissDateTimezone : -date.getTimezoneOffset() * Time.Minute];
      } else if (date instanceof KissDate) {
        this.dateArr = date.dateArr;
      } else {
        var jsDate = new Date();
        this.dateArr = [Math.floor(jsDate.getTime() * Time.Millisecond), kissDateTimezone !== null && kissDateTimezone !== void 0 ? kissDateTimezone : -jsDate.getTimezoneOffset() * Time.Minute];
      }
    }

    (0, _createClass2.default)(KissDate, [{
      key: "jsDate",
      get: function get() {
        return new Date(this.dateArr[0] / Time.Millisecond);
      }
    }, {
      key: "localShiftedJsDate",
      get: function get() {
        return new Date((this.dateArr[0] + this.timezone) / Time.Millisecond);
      }
    }, {
      key: "changeTimezone",
      value: function changeTimezone(timezone) {
        var adjustTime = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;
        var kissDateTimezone = typeof timezone === 'string' ? KissDate.getTimezone(timezone) : timezone !== null && timezone !== void 0 ? timezone : null;

        if (!adjustTime) {
          this.dateArr[0] = this.dateArr[0] + this.timezone - kissDateTimezone;
        }

        this.dateArr[1] = kissDateTimezone;
        return this;
      }
    }, {
      key: "timezone",
      get: function get() {
        return this.dateArr[1];
      }
    }, {
      key: "timezoneStr",
      get: function get() {
        var timezoneAbs = Math.abs(this.timezone);
        var hours = Math.floor(timezoneAbs / Time.Hour);
        var minutes = Math.floor(timezoneAbs / Time.Minute % Time.Minute);
        return "".concat(this.timezone < 0 ? '-' : '+').concat(hours.toString().padStart(2, '0'), ":").concat(minutes.toString().padStart(2, '0'));
      }
    }], [{
      key: "getTimezone",
      value: function getTimezone(timezone) {
        if (typeof timezone === 'number') return timezone;
        var timezoneArr = timezone.split(':');
        var timezoneStr = timezoneArr.length > 1 ? timezoneArr[0] + timezoneArr[1] : timezoneArr[0];
        if (timezoneStr.length < 5) timezoneStr = "+".concat(timezoneStr);

        if (timezoneStr[0] !== '+' && timezoneStr[0] !== '-' || timezoneStr.length < 5) {
          throw new Error("".concat(timezone, " is an invalid timezone string"));
        }

        var sign = timezoneStr[0] === '-' ? -1 : 1;
        var hours = parseInt(timezoneStr.substr(1, 2), 10) * Time.Minute;
        var minutes = parseInt(timezoneStr.substr(3, 2), 10) * Time.Minute;
        return (hours * Time.Minute + minutes) * sign;
      }
    }]);
    return KissDate;
  }();

  _exports.default = KissDate;
  var Time;
  _exports.Time = Time;

  (function (Time) {
    Time[Time["Second"] = 1] = "Second";
    Time[Time["Minute"] = Time.Second * 60] = "Minute";
    Time[Time["Hour"] = Time.Minute * 60] = "Hour";
    Time[Time["Day"] = Time.Hour * 24] = "Day";
    Time[Time["Millisecond"] = 0.001] = "Millisecond";
  })(Time || (_exports.Time = Time = {}));
});
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