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backend/node_modules/date-fns/parse/_lib/Parser.js

@@ -0,0 +1,39 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.Parser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Setter = require("./Setter.js");
+var Parser = /*#__PURE__*/function () {
+  function Parser() {
+    (0, _classCallCheck2.default)(this, Parser);
+    (0, _defineProperty2.default)(this, "incompatibleTokens", void 0);
+    (0, _defineProperty2.default)(this, "priority", void 0);
+    (0, _defineProperty2.default)(this, "subPriority", void 0);
+  }
+  (0, _createClass2.default)(Parser, [{
+    key: "run",
+    value: function run(dateString, token, match, options) {
+      var result = this.parse(dateString, token, match, options);
+      if (!result) {
+        return null;
+      }
+      return {
+        setter: new _Setter.ValueSetter(result.value, this.validate, this.set, this.priority, this.subPriority),
+        rest: result.rest
+      };
+    }
+  }, {
+    key: "validate",
+    value: function validate(_utcDate, _value, _options) {
+      return true;
+    }
+  }]);
+  return Parser;
+}();
+exports.Parser = Parser;

backend/node_modules/date-fns/parse/_lib/Setter.js

@@ -0,0 +1,88 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ValueSetter = exports.Setter = exports.DateToSystemTimezoneSetter = void 0;
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var TIMEZONE_UNIT_PRIORITY = 10;
+var Setter = /*#__PURE__*/function () {
+  function Setter() {
+    (0, _classCallCheck2.default)(this, Setter);
+    (0, _defineProperty2.default)(this, "priority", void 0);
+    (0, _defineProperty2.default)(this, "subPriority", 0);
+  }
+  (0, _createClass2.default)(Setter, [{
+    key: "validate",
+    value: function validate(_utcDate, _options) {
+      return true;
+    }
+  }]);
+  return Setter;
+}();
+exports.Setter = Setter;
+var ValueSetter = /*#__PURE__*/function (_Setter) {
+  (0, _inherits2.default)(ValueSetter, _Setter);
+  var _super = (0, _createSuper2.default)(ValueSetter);
+  function ValueSetter(value, validateValue, setValue, priority, subPriority) {
+    var _this;
+    (0, _classCallCheck2.default)(this, ValueSetter);
+    _this = _super.call(this);
+    _this.value = value;
+    _this.validateValue = validateValue;
+    _this.setValue = setValue;
+    _this.priority = priority;
+    if (subPriority) {
+      _this.subPriority = subPriority;
+    }
+    return _this;
+  }
+  (0, _createClass2.default)(ValueSetter, [{
+    key: "validate",
+    value: function validate(utcDate, options) {
+      return this.validateValue(utcDate, this.value, options);
+    }
+  }, {
+    key: "set",
+    value: function set(utcDate, flags, options) {
+      return this.setValue(utcDate, flags, this.value, options);
+    }
+  }]);
+  return ValueSetter;
+}(Setter);
+exports.ValueSetter = ValueSetter;
+var DateToSystemTimezoneSetter = /*#__PURE__*/function (_Setter2) {
+  (0, _inherits2.default)(DateToSystemTimezoneSetter, _Setter2);
+  var _super2 = (0, _createSuper2.default)(DateToSystemTimezoneSetter);
+  function DateToSystemTimezoneSetter() {
+    var _this2;
+    (0, _classCallCheck2.default)(this, DateToSystemTimezoneSetter);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this2 = _super2.call.apply(_super2, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this2), "priority", TIMEZONE_UNIT_PRIORITY);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this2), "subPriority", -1);
+    return _this2;
+  }
+  (0, _createClass2.default)(DateToSystemTimezoneSetter, [{
+    key: "set",
+    value: function set(date, flags) {
+      if (flags.timestampIsSet) {
+        return date;
+      }
+      var convertedDate = new Date(0);
+      convertedDate.setFullYear(date.getUTCFullYear(), date.getUTCMonth(), date.getUTCDate());
+      convertedDate.setHours(date.getUTCHours(), date.getUTCMinutes(), date.getUTCSeconds(), date.getUTCMilliseconds());
+      return convertedDate;
+    }
+  }]);
+  return DateToSystemTimezoneSetter;
+}(Setter);
+exports.DateToSystemTimezoneSetter = DateToSystemTimezoneSetter;

backend/node_modules/date-fns/parse/_lib/constants.js

@@ -0,0 +1,55 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.timezonePatterns = exports.numericPatterns = void 0;
+var numericPatterns = {
+  month: /^(1[0-2]|0?\d)/,
+  // 0 to 12
+  date: /^(3[0-1]|[0-2]?\d)/,
+  // 0 to 31
+  dayOfYear: /^(36[0-6]|3[0-5]\d|[0-2]?\d?\d)/,
+  // 0 to 366
+  week: /^(5[0-3]|[0-4]?\d)/,
+  // 0 to 53
+  hour23h: /^(2[0-3]|[0-1]?\d)/,
+  // 0 to 23
+  hour24h: /^(2[0-4]|[0-1]?\d)/,
+  // 0 to 24
+  hour11h: /^(1[0-1]|0?\d)/,
+  // 0 to 11
+  hour12h: /^(1[0-2]|0?\d)/,
+  // 0 to 12
+  minute: /^[0-5]?\d/,
+  // 0 to 59
+  second: /^[0-5]?\d/,
+  // 0 to 59
+
+  singleDigit: /^\d/,
+  // 0 to 9
+  twoDigits: /^\d{1,2}/,
+  // 0 to 99
+  threeDigits: /^\d{1,3}/,
+  // 0 to 999
+  fourDigits: /^\d{1,4}/,
+  // 0 to 9999
+
+  anyDigitsSigned: /^-?\d+/,
+  singleDigitSigned: /^-?\d/,
+  // 0 to 9, -0 to -9
+  twoDigitsSigned: /^-?\d{1,2}/,
+  // 0 to 99, -0 to -99
+  threeDigitsSigned: /^-?\d{1,3}/,
+  // 0 to 999, -0 to -999
+  fourDigitsSigned: /^-?\d{1,4}/ // 0 to 9999, -0 to -9999
+};
+exports.numericPatterns = numericPatterns;
+var timezonePatterns = {
+  basicOptionalMinutes: /^([+-])(\d{2})(\d{2})?|Z/,
+  basic: /^([+-])(\d{2})(\d{2})|Z/,
+  basicOptionalSeconds: /^([+-])(\d{2})(\d{2})((\d{2}))?|Z/,
+  extended: /^([+-])(\d{2}):(\d{2})|Z/,
+  extendedOptionalSeconds: /^([+-])(\d{2}):(\d{2})(:(\d{2}))?|Z/
+};
+exports.timezonePatterns = timezonePatterns;

backend/node_modules/date-fns/parse/_lib/parsers/AMPMMidnightParser.js

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+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.AMPMMidnightParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var AMPMMidnightParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(AMPMMidnightParser, _Parser);
+  var _super = (0, _createSuper2.default)(AMPMMidnightParser);
+  function AMPMMidnightParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, AMPMMidnightParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 80);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['a', 'B', 'H', 'k', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(AMPMMidnightParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'b':
+        case 'bb':
+        case 'bbb':
+          return match.dayPeriod(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.dayPeriod(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        case 'bbbbb':
+          return match.dayPeriod(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        case 'bbbb':
+        default:
+          return match.dayPeriod(dateString, {
+            width: 'wide',
+            context: 'formatting'
+          }) || match.dayPeriod(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.dayPeriod(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+      }
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCHours((0, _utils.dayPeriodEnumToHours)(value), 0, 0, 0);
+      return date;
+    }
+  }]);
+  return AMPMMidnightParser;
+}(_Parser2.Parser);
+exports.AMPMMidnightParser = AMPMMidnightParser;

backend/node_modules/date-fns/parse/_lib/parsers/AMPMParser.js

@@ -0,0 +1,72 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.AMPMParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var AMPMParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(AMPMParser, _Parser);
+  var _super = (0, _createSuper2.default)(AMPMParser);
+  function AMPMParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, AMPMParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 80);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['b', 'B', 'H', 'k', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(AMPMParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'a':
+        case 'aa':
+        case 'aaa':
+          return match.dayPeriod(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.dayPeriod(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        case 'aaaaa':
+          return match.dayPeriod(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        case 'aaaa':
+        default:
+          return match.dayPeriod(dateString, {
+            width: 'wide',
+            context: 'formatting'
+          }) || match.dayPeriod(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.dayPeriod(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+      }
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCHours((0, _utils.dayPeriodEnumToHours)(value), 0, 0, 0);
+      return date;
+    }
+  }]);
+  return AMPMParser;
+}(_Parser2.Parser);
+exports.AMPMParser = AMPMParser;

backend/node_modules/date-fns/parse/_lib/parsers/DateParser.js

@@ -0,0 +1,72 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.DateParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _utils = require("../utils.js");
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var DAYS_IN_MONTH = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
+var DAYS_IN_MONTH_LEAP_YEAR = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
+
+// Day of the month
+var DateParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(DateParser, _Parser);
+  var _super = (0, _createSuper2.default)(DateParser);
+  function DateParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, DateParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 90);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "subPriority", 1);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['Y', 'R', 'q', 'Q', 'w', 'I', 'D', 'i', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(DateParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'd':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.date, dateString);
+        case 'do':
+          return match.ordinalNumber(dateString, {
+            unit: 'date'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(date, value) {
+      var year = date.getUTCFullYear();
+      var isLeapYear = (0, _utils.isLeapYearIndex)(year);
+      var month = date.getUTCMonth();
+      if (isLeapYear) {
+        return value >= 1 && value <= DAYS_IN_MONTH_LEAP_YEAR[month];
+      } else {
+        return value >= 1 && value <= DAYS_IN_MONTH[month];
+      }
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCDate(value);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return DateParser;
+}(_Parser2.Parser);
+exports.DateParser = DateParser;

backend/node_modules/date-fns/parse/_lib/parsers/DayOfYearParser.js

@@ -0,0 +1,68 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.DayOfYearParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var DayOfYearParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(DayOfYearParser, _Parser);
+  var _super = (0, _createSuper2.default)(DayOfYearParser);
+  function DayOfYearParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, DayOfYearParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 90);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "subpriority", 1);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['Y', 'R', 'q', 'Q', 'M', 'L', 'w', 'I', 'd', 'E', 'i', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(DayOfYearParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'D':
+        case 'DD':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.dayOfYear, dateString);
+        case 'Do':
+          return match.ordinalNumber(dateString, {
+            unit: 'date'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(date, value) {
+      var year = date.getUTCFullYear();
+      var isLeapYear = (0, _utils.isLeapYearIndex)(year);
+      if (isLeapYear) {
+        return value >= 1 && value <= 366;
+      } else {
+        return value >= 1 && value <= 365;
+      }
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCMonth(0, value);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return DayOfYearParser;
+}(_Parser2.Parser);
+exports.DayOfYearParser = DayOfYearParser;

backend/node_modules/date-fns/parse/_lib/parsers/DayParser.js

@@ -0,0 +1,97 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.DayParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _index = _interopRequireDefault(require("../../../_lib/setUTCDay/index.js"));
+// Day of week
+var DayParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(DayParser, _Parser);
+  var _super = (0, _createSuper2.default)(DayParser);
+  function DayParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, DayParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 90);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['D', 'i', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(DayParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        // Tue
+        case 'E':
+        case 'EE':
+        case 'EEE':
+          return match.day(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'short',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // T
+        case 'EEEEE':
+          return match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // Tu
+        case 'EEEEEE':
+          return match.day(dateString, {
+            width: 'short',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // Tuesday
+        case 'EEEE':
+        default:
+          return match.day(dateString, {
+            width: 'wide',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'short',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 0 && value <= 6;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value, options) {
+      date = (0, _index.default)(date, value, options);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return DayParser;
+}(_Parser2.Parser);
+exports.DayParser = DayParser;

backend/node_modules/date-fns/parse/_lib/parsers/DayPeriodParser.js

@@ -0,0 +1,73 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.DayPeriodParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+// in the morning, in the afternoon, in the evening, at night
+var DayPeriodParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(DayPeriodParser, _Parser);
+  var _super = (0, _createSuper2.default)(DayPeriodParser);
+  function DayPeriodParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, DayPeriodParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 80);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['a', 'b', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(DayPeriodParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'B':
+        case 'BB':
+        case 'BBB':
+          return match.dayPeriod(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.dayPeriod(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        case 'BBBBB':
+          return match.dayPeriod(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        case 'BBBB':
+        default:
+          return match.dayPeriod(dateString, {
+            width: 'wide',
+            context: 'formatting'
+          }) || match.dayPeriod(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.dayPeriod(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+      }
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCHours((0, _utils.dayPeriodEnumToHours)(value), 0, 0, 0);
+      return date;
+    }
+  }]);
+  return DayPeriodParser;
+}(_Parser2.Parser);
+exports.DayPeriodParser = DayPeriodParser;

backend/node_modules/date-fns/parse/_lib/parsers/EraParser.js

@@ -0,0 +1,70 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.EraParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var EraParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(EraParser, _Parser);
+  var _super = (0, _createSuper2.default)(EraParser);
+  function EraParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, EraParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 140);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['R', 'u', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(EraParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        // AD, BC
+        case 'G':
+        case 'GG':
+        case 'GGG':
+          return match.era(dateString, {
+            width: 'abbreviated'
+          }) || match.era(dateString, {
+            width: 'narrow'
+          });
+        // A, B
+        case 'GGGGG':
+          return match.era(dateString, {
+            width: 'narrow'
+          });
+        // Anno Domini, Before Christ
+        case 'GGGG':
+        default:
+          return match.era(dateString, {
+            width: 'wide'
+          }) || match.era(dateString, {
+            width: 'abbreviated'
+          }) || match.era(dateString, {
+            width: 'narrow'
+          });
+      }
+    }
+  }, {
+    key: "set",
+    value: function set(date, flags, value) {
+      flags.era = value;
+      date.setUTCFullYear(value, 0, 1);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return EraParser;
+}(_Parser2.Parser);
+exports.EraParser = EraParser;

backend/node_modules/date-fns/parse/_lib/parsers/ExtendedYearParser.js

@@ -0,0 +1,48 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ExtendedYearParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var ExtendedYearParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(ExtendedYearParser, _Parser);
+  var _super = (0, _createSuper2.default)(ExtendedYearParser);
+  function ExtendedYearParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, ExtendedYearParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 130);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['G', 'y', 'Y', 'R', 'w', 'I', 'i', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(ExtendedYearParser, [{
+    key: "parse",
+    value: function parse(dateString, token) {
+      if (token === 'u') {
+        return (0, _utils.parseNDigitsSigned)(4, dateString);
+      }
+      return (0, _utils.parseNDigitsSigned)(token.length, dateString);
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCFullYear(value, 0, 1);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return ExtendedYearParser;
+}(_Parser2.Parser);
+exports.ExtendedYearParser = ExtendedYearParser;

backend/node_modules/date-fns/parse/_lib/parsers/FractionOfSecondParser.js

@@ -0,0 +1,47 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.FractionOfSecondParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var FractionOfSecondParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(FractionOfSecondParser, _Parser);
+  var _super = (0, _createSuper2.default)(FractionOfSecondParser);
+  function FractionOfSecondParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, FractionOfSecondParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 30);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['t', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(FractionOfSecondParser, [{
+    key: "parse",
+    value: function parse(dateString, token) {
+      var valueCallback = function valueCallback(value) {
+        return Math.floor(value * Math.pow(10, -token.length + 3));
+      };
+      return (0, _utils.mapValue)((0, _utils.parseNDigits)(token.length, dateString), valueCallback);
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCMilliseconds(value);
+      return date;
+    }
+  }]);
+  return FractionOfSecondParser;
+}(_Parser2.Parser);
+exports.FractionOfSecondParser = FractionOfSecondParser;

backend/node_modules/date-fns/parse/_lib/parsers/Hour0To11Parser.js

@@ -0,0 +1,64 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.Hour0To11Parser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var Hour0To11Parser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(Hour0To11Parser, _Parser);
+  var _super = (0, _createSuper2.default)(Hour0To11Parser);
+  function Hour0To11Parser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, Hour0To11Parser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 70);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['h', 'H', 'k', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(Hour0To11Parser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'K':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.hour11h, dateString);
+        case 'Ko':
+          return match.ordinalNumber(dateString, {
+            unit: 'hour'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 0 && value <= 11;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      var isPM = date.getUTCHours() >= 12;
+      if (isPM && value < 12) {
+        date.setUTCHours(value + 12, 0, 0, 0);
+      } else {
+        date.setUTCHours(value, 0, 0, 0);
+      }
+      return date;
+    }
+  }]);
+  return Hour0To11Parser;
+}(_Parser2.Parser);
+exports.Hour0To11Parser = Hour0To11Parser;

backend/node_modules/date-fns/parse/_lib/parsers/Hour0to23Parser.js

@@ -0,0 +1,59 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.Hour0to23Parser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var Hour0to23Parser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(Hour0to23Parser, _Parser);
+  var _super = (0, _createSuper2.default)(Hour0to23Parser);
+  function Hour0to23Parser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, Hour0to23Parser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 70);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['a', 'b', 'h', 'K', 'k', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(Hour0to23Parser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'H':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.hour23h, dateString);
+        case 'Ho':
+          return match.ordinalNumber(dateString, {
+            unit: 'hour'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 0 && value <= 23;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCHours(value, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return Hour0to23Parser;
+}(_Parser2.Parser);
+exports.Hour0to23Parser = Hour0to23Parser;

backend/node_modules/date-fns/parse/_lib/parsers/Hour1To24Parser.js

@@ -0,0 +1,60 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.Hour1To24Parser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var Hour1To24Parser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(Hour1To24Parser, _Parser);
+  var _super = (0, _createSuper2.default)(Hour1To24Parser);
+  function Hour1To24Parser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, Hour1To24Parser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 70);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['a', 'b', 'h', 'H', 'K', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(Hour1To24Parser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'k':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.hour24h, dateString);
+        case 'ko':
+          return match.ordinalNumber(dateString, {
+            unit: 'hour'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 1 && value <= 24;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      var hours = value <= 24 ? value % 24 : value;
+      date.setUTCHours(hours, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return Hour1To24Parser;
+}(_Parser2.Parser);
+exports.Hour1To24Parser = Hour1To24Parser;

backend/node_modules/date-fns/parse/_lib/parsers/Hour1to12Parser.js

@@ -0,0 +1,66 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.Hour1to12Parser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var Hour1to12Parser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(Hour1to12Parser, _Parser);
+  var _super = (0, _createSuper2.default)(Hour1to12Parser);
+  function Hour1to12Parser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, Hour1to12Parser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 70);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['H', 'K', 'k', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(Hour1to12Parser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'h':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.hour12h, dateString);
+        case 'ho':
+          return match.ordinalNumber(dateString, {
+            unit: 'hour'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 1 && value <= 12;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      var isPM = date.getUTCHours() >= 12;
+      if (isPM && value < 12) {
+        date.setUTCHours(value + 12, 0, 0, 0);
+      } else if (!isPM && value === 12) {
+        date.setUTCHours(0, 0, 0, 0);
+      } else {
+        date.setUTCHours(value, 0, 0, 0);
+      }
+      return date;
+    }
+  }]);
+  return Hour1to12Parser;
+}(_Parser2.Parser);
+exports.Hour1to12Parser = Hour1to12Parser;

backend/node_modules/date-fns/parse/_lib/parsers/ISODayParser.js

@@ -0,0 +1,112 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ISODayParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var _index = _interopRequireDefault(require("../../../_lib/setUTCISODay/index.js"));
+// ISO day of week
+var ISODayParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(ISODayParser, _Parser);
+  var _super = (0, _createSuper2.default)(ISODayParser);
+  function ISODayParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, ISODayParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 90);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['y', 'Y', 'u', 'q', 'Q', 'M', 'L', 'w', 'd', 'D', 'E', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(ISODayParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      var valueCallback = function valueCallback(value) {
+        if (value === 0) {
+          return 7;
+        }
+        return value;
+      };
+      switch (token) {
+        // 2
+        case 'i':
+        case 'ii':
+          // 02
+          return (0, _utils.parseNDigits)(token.length, dateString);
+        // 2nd
+        case 'io':
+          return match.ordinalNumber(dateString, {
+            unit: 'day'
+          });
+        // Tue
+        case 'iii':
+          return (0, _utils.mapValue)(match.day(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'short',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          }), valueCallback);
+        // T
+        case 'iiiii':
+          return (0, _utils.mapValue)(match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          }), valueCallback);
+        // Tu
+        case 'iiiiii':
+          return (0, _utils.mapValue)(match.day(dateString, {
+            width: 'short',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          }), valueCallback);
+        // Tuesday
+        case 'iiii':
+        default:
+          return (0, _utils.mapValue)(match.day(dateString, {
+            width: 'wide',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'short',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          }), valueCallback);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 1 && value <= 7;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date = (0, _index.default)(date, value);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return ISODayParser;
+}(_Parser2.Parser);
+exports.ISODayParser = ISODayParser;

backend/node_modules/date-fns/parse/_lib/parsers/ISOTimezoneParser.js

@@ -0,0 +1,60 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ISOTimezoneParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+// Timezone (ISO-8601)
+var ISOTimezoneParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(ISOTimezoneParser, _Parser);
+  var _super = (0, _createSuper2.default)(ISOTimezoneParser);
+  function ISOTimezoneParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, ISOTimezoneParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 10);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['t', 'T', 'X']);
+    return _this;
+  }
+  (0, _createClass2.default)(ISOTimezoneParser, [{
+    key: "parse",
+    value: function parse(dateString, token) {
+      switch (token) {
+        case 'x':
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.basicOptionalMinutes, dateString);
+        case 'xx':
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.basic, dateString);
+        case 'xxxx':
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.basicOptionalSeconds, dateString);
+        case 'xxxxx':
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.extendedOptionalSeconds, dateString);
+        case 'xxx':
+        default:
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.extended, dateString);
+      }
+    }
+  }, {
+    key: "set",
+    value: function set(date, flags, value) {
+      if (flags.timestampIsSet) {
+        return date;
+      }
+      return new Date(date.getTime() - value);
+    }
+  }]);
+  return ISOTimezoneParser;
+}(_Parser2.Parser);
+exports.ISOTimezoneParser = ISOTimezoneParser;

backend/node_modules/date-fns/parse/_lib/parsers/ISOTimezoneWithZParser.js

@@ -0,0 +1,60 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ISOTimezoneWithZParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+// Timezone (ISO-8601. +00:00 is `'Z'`)
+var ISOTimezoneWithZParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(ISOTimezoneWithZParser, _Parser);
+  var _super = (0, _createSuper2.default)(ISOTimezoneWithZParser);
+  function ISOTimezoneWithZParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, ISOTimezoneWithZParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 10);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['t', 'T', 'x']);
+    return _this;
+  }
+  (0, _createClass2.default)(ISOTimezoneWithZParser, [{
+    key: "parse",
+    value: function parse(dateString, token) {
+      switch (token) {
+        case 'X':
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.basicOptionalMinutes, dateString);
+        case 'XX':
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.basic, dateString);
+        case 'XXXX':
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.basicOptionalSeconds, dateString);
+        case 'XXXXX':
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.extendedOptionalSeconds, dateString);
+        case 'XXX':
+        default:
+          return (0, _utils.parseTimezonePattern)(_constants.timezonePatterns.extended, dateString);
+      }
+    }
+  }, {
+    key: "set",
+    value: function set(date, flags, value) {
+      if (flags.timestampIsSet) {
+        return date;
+      }
+      return new Date(date.getTime() - value);
+    }
+  }]);
+  return ISOTimezoneWithZParser;
+}(_Parser2.Parser);
+exports.ISOTimezoneWithZParser = ISOTimezoneWithZParser;

backend/node_modules/date-fns/parse/_lib/parsers/ISOWeekParser.js

@@ -0,0 +1,61 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ISOWeekParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var _index = _interopRequireDefault(require("../../../_lib/setUTCISOWeek/index.js"));
+var _index2 = _interopRequireDefault(require("../../../_lib/startOfUTCISOWeek/index.js"));
+// ISO week of year
+var ISOWeekParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(ISOWeekParser, _Parser);
+  var _super = (0, _createSuper2.default)(ISOWeekParser);
+  function ISOWeekParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, ISOWeekParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 100);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['y', 'Y', 'u', 'q', 'Q', 'M', 'L', 'w', 'd', 'D', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(ISOWeekParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'I':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.week, dateString);
+        case 'Io':
+          return match.ordinalNumber(dateString, {
+            unit: 'week'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 1 && value <= 53;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      return (0, _index2.default)((0, _index.default)(date, value));
+    }
+  }]);
+  return ISOWeekParser;
+}(_Parser2.Parser);
+exports.ISOWeekParser = ISOWeekParser;

backend/node_modules/date-fns/parse/_lib/parsers/ISOWeekYearParser.js

@@ -0,0 +1,51 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.ISOWeekYearParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var _index = _interopRequireDefault(require("../../../_lib/startOfUTCISOWeek/index.js"));
+// ISO week-numbering year
+var ISOWeekYearParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(ISOWeekYearParser, _Parser);
+  var _super = (0, _createSuper2.default)(ISOWeekYearParser);
+  function ISOWeekYearParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, ISOWeekYearParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 130);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['G', 'y', 'Y', 'u', 'Q', 'q', 'M', 'L', 'w', 'd', 'D', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(ISOWeekYearParser, [{
+    key: "parse",
+    value: function parse(dateString, token) {
+      if (token === 'R') {
+        return (0, _utils.parseNDigitsSigned)(4, dateString);
+      }
+      return (0, _utils.parseNDigitsSigned)(token.length, dateString);
+    }
+  }, {
+    key: "set",
+    value: function set(_date, _flags, value) {
+      var firstWeekOfYear = new Date(0);
+      firstWeekOfYear.setUTCFullYear(value, 0, 4);
+      firstWeekOfYear.setUTCHours(0, 0, 0, 0);
+      return (0, _index.default)(firstWeekOfYear);
+    }
+  }]);
+  return ISOWeekYearParser;
+}(_Parser2.Parser);
+exports.ISOWeekYearParser = ISOWeekYearParser;

backend/node_modules/date-fns/parse/_lib/parsers/LocalDayParser.js

@@ -0,0 +1,110 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.LocalDayParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var _index = _interopRequireDefault(require("../../../_lib/setUTCDay/index.js"));
+// Local day of week
+var LocalDayParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(LocalDayParser, _Parser);
+  var _super = (0, _createSuper2.default)(LocalDayParser);
+  function LocalDayParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, LocalDayParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 90);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['y', 'R', 'u', 'q', 'Q', 'M', 'L', 'I', 'd', 'D', 'E', 'i', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(LocalDayParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match, options) {
+      var valueCallback = function valueCallback(value) {
+        var wholeWeekDays = Math.floor((value - 1) / 7) * 7;
+        return (value + options.weekStartsOn + 6) % 7 + wholeWeekDays;
+      };
+      switch (token) {
+        // 3
+        case 'e':
+        case 'ee':
+          // 03
+          return (0, _utils.mapValue)((0, _utils.parseNDigits)(token.length, dateString), valueCallback);
+        // 3rd
+        case 'eo':
+          return (0, _utils.mapValue)(match.ordinalNumber(dateString, {
+            unit: 'day'
+          }), valueCallback);
+        // Tue
+        case 'eee':
+          return match.day(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'short',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // T
+        case 'eeeee':
+          return match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // Tu
+        case 'eeeeee':
+          return match.day(dateString, {
+            width: 'short',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // Tuesday
+        case 'eeee':
+        default:
+          return match.day(dateString, {
+            width: 'wide',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'short',
+            context: 'formatting'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 0 && value <= 6;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value, options) {
+      date = (0, _index.default)(date, value, options);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return LocalDayParser;
+}(_Parser2.Parser);
+exports.LocalDayParser = LocalDayParser;

backend/node_modules/date-fns/parse/_lib/parsers/LocalWeekParser.js

@@ -0,0 +1,61 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.LocalWeekParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var _index = _interopRequireDefault(require("../../../_lib/setUTCWeek/index.js"));
+var _index2 = _interopRequireDefault(require("../../../_lib/startOfUTCWeek/index.js"));
+// Local week of year
+var LocalWeekParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(LocalWeekParser, _Parser);
+  var _super = (0, _createSuper2.default)(LocalWeekParser);
+  function LocalWeekParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, LocalWeekParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 100);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['y', 'R', 'u', 'q', 'Q', 'M', 'L', 'I', 'd', 'D', 'i', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(LocalWeekParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'w':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.week, dateString);
+        case 'wo':
+          return match.ordinalNumber(dateString, {
+            unit: 'week'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 1 && value <= 53;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value, options) {
+      return (0, _index2.default)((0, _index.default)(date, value, options), options);
+    }
+  }]);
+  return LocalWeekParser;
+}(_Parser2.Parser);
+exports.LocalWeekParser = LocalWeekParser;

backend/node_modules/date-fns/parse/_lib/parsers/LocalWeekYearParser.js

@@ -0,0 +1,76 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.LocalWeekYearParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var _index = _interopRequireDefault(require("../../../_lib/getUTCWeekYear/index.js"));
+var _index2 = _interopRequireDefault(require("../../../_lib/startOfUTCWeek/index.js"));
+// Local week-numbering year
+var LocalWeekYearParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(LocalWeekYearParser, _Parser);
+  var _super = (0, _createSuper2.default)(LocalWeekYearParser);
+  function LocalWeekYearParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, LocalWeekYearParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 130);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['y', 'R', 'u', 'Q', 'q', 'M', 'L', 'I', 'd', 'D', 'i', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(LocalWeekYearParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      var valueCallback = function valueCallback(year) {
+        return {
+          year: year,
+          isTwoDigitYear: token === 'YY'
+        };
+      };
+      switch (token) {
+        case 'Y':
+          return (0, _utils.mapValue)((0, _utils.parseNDigits)(4, dateString), valueCallback);
+        case 'Yo':
+          return (0, _utils.mapValue)(match.ordinalNumber(dateString, {
+            unit: 'year'
+          }), valueCallback);
+        default:
+          return (0, _utils.mapValue)((0, _utils.parseNDigits)(token.length, dateString), valueCallback);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value.isTwoDigitYear || value.year > 0;
+    }
+  }, {
+    key: "set",
+    value: function set(date, flags, value, options) {
+      var currentYear = (0, _index.default)(date, options);
+      if (value.isTwoDigitYear) {
+        var normalizedTwoDigitYear = (0, _utils.normalizeTwoDigitYear)(value.year, currentYear);
+        date.setUTCFullYear(normalizedTwoDigitYear, 0, options.firstWeekContainsDate);
+        date.setUTCHours(0, 0, 0, 0);
+        return (0, _index2.default)(date, options);
+      }
+      var year = !('era' in flags) || flags.era === 1 ? value.year : 1 - value.year;
+      date.setUTCFullYear(year, 0, options.firstWeekContainsDate);
+      date.setUTCHours(0, 0, 0, 0);
+      return (0, _index2.default)(date, options);
+    }
+  }]);
+  return LocalWeekYearParser;
+}(_Parser2.Parser);
+exports.LocalWeekYearParser = LocalWeekYearParser;

backend/node_modules/date-fns/parse/_lib/parsers/MinuteParser.js

@@ -0,0 +1,59 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.MinuteParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var MinuteParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(MinuteParser, _Parser);
+  var _super = (0, _createSuper2.default)(MinuteParser);
+  function MinuteParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, MinuteParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 60);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['t', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(MinuteParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 'm':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.minute, dateString);
+        case 'mo':
+          return match.ordinalNumber(dateString, {
+            unit: 'minute'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 0 && value <= 59;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCMinutes(value, 0, 0);
+      return date;
+    }
+  }]);
+  return MinuteParser;
+}(_Parser2.Parser);
+exports.MinuteParser = MinuteParser;

backend/node_modules/date-fns/parse/_lib/parsers/MonthParser.js

@@ -0,0 +1,94 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.MonthParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _utils = require("../utils.js");
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var MonthParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(MonthParser, _Parser);
+  var _super = (0, _createSuper2.default)(MonthParser);
+  function MonthParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, MonthParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['Y', 'R', 'q', 'Q', 'L', 'w', 'I', 'D', 'i', 'e', 'c', 't', 'T']);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 110);
+    return _this;
+  }
+  (0, _createClass2.default)(MonthParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      var valueCallback = function valueCallback(value) {
+        return value - 1;
+      };
+      switch (token) {
+        // 1, 2, ..., 12
+        case 'M':
+          return (0, _utils.mapValue)((0, _utils.parseNumericPattern)(_constants.numericPatterns.month, dateString), valueCallback);
+        // 01, 02, ..., 12
+        case 'MM':
+          return (0, _utils.mapValue)((0, _utils.parseNDigits)(2, dateString), valueCallback);
+        // 1st, 2nd, ..., 12th
+        case 'Mo':
+          return (0, _utils.mapValue)(match.ordinalNumber(dateString, {
+            unit: 'month'
+          }), valueCallback);
+        // Jan, Feb, ..., Dec
+        case 'MMM':
+          return match.month(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.month(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // J, F, ..., D
+        case 'MMMMM':
+          return match.month(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // January, February, ..., December
+        case 'MMMM':
+        default:
+          return match.month(dateString, {
+            width: 'wide',
+            context: 'formatting'
+          }) || match.month(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.month(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 0 && value <= 11;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCMonth(value, 1);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return MonthParser;
+}(_Parser2.Parser);
+exports.MonthParser = MonthParser;

backend/node_modules/date-fns/parse/_lib/parsers/QuarterParser.js

@@ -0,0 +1,89 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.QuarterParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var QuarterParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(QuarterParser, _Parser);
+  var _super = (0, _createSuper2.default)(QuarterParser);
+  function QuarterParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, QuarterParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 120);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['Y', 'R', 'q', 'M', 'L', 'w', 'I', 'd', 'D', 'i', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(QuarterParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        // 1, 2, 3, 4
+        case 'Q':
+        case 'QQ':
+          // 01, 02, 03, 04
+          return (0, _utils.parseNDigits)(token.length, dateString);
+        // 1st, 2nd, 3rd, 4th
+        case 'Qo':
+          return match.ordinalNumber(dateString, {
+            unit: 'quarter'
+          });
+        // Q1, Q2, Q3, Q4
+        case 'QQQ':
+          return match.quarter(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.quarter(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // 1, 2, 3, 4 (narrow quarter; could be not numerical)
+        case 'QQQQQ':
+          return match.quarter(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+        // 1st quarter, 2nd quarter, ...
+        case 'QQQQ':
+        default:
+          return match.quarter(dateString, {
+            width: 'wide',
+            context: 'formatting'
+          }) || match.quarter(dateString, {
+            width: 'abbreviated',
+            context: 'formatting'
+          }) || match.quarter(dateString, {
+            width: 'narrow',
+            context: 'formatting'
+          });
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 1 && value <= 4;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCMonth((value - 1) * 3, 1);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return QuarterParser;
+}(_Parser2.Parser);
+exports.QuarterParser = QuarterParser;

backend/node_modules/date-fns/parse/_lib/parsers/SecondParser.js

@@ -0,0 +1,59 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.SecondParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var SecondParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(SecondParser, _Parser);
+  var _super = (0, _createSuper2.default)(SecondParser);
+  function SecondParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, SecondParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 50);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['t', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(SecondParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        case 's':
+          return (0, _utils.parseNumericPattern)(_constants.numericPatterns.second, dateString);
+        case 'so':
+          return match.ordinalNumber(dateString, {
+            unit: 'second'
+          });
+        default:
+          return (0, _utils.parseNDigits)(token.length, dateString);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 0 && value <= 59;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCSeconds(value, 0);
+      return date;
+    }
+  }]);
+  return SecondParser;
+}(_Parser2.Parser);
+exports.SecondParser = SecondParser;

backend/node_modules/date-fns/parse/_lib/parsers/StandAloneLocalDayParser.js

@@ -0,0 +1,110 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.StandAloneLocalDayParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var _index = _interopRequireDefault(require("../../../_lib/setUTCDay/index.js"));
+// Stand-alone local day of week
+var StandAloneLocalDayParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(StandAloneLocalDayParser, _Parser);
+  var _super = (0, _createSuper2.default)(StandAloneLocalDayParser);
+  function StandAloneLocalDayParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, StandAloneLocalDayParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 90);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['y', 'R', 'u', 'q', 'Q', 'M', 'L', 'I', 'd', 'D', 'E', 'i', 'e', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(StandAloneLocalDayParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match, options) {
+      var valueCallback = function valueCallback(value) {
+        var wholeWeekDays = Math.floor((value - 1) / 7) * 7;
+        return (value + options.weekStartsOn + 6) % 7 + wholeWeekDays;
+      };
+      switch (token) {
+        // 3
+        case 'c':
+        case 'cc':
+          // 03
+          return (0, _utils.mapValue)((0, _utils.parseNDigits)(token.length, dateString), valueCallback);
+        // 3rd
+        case 'co':
+          return (0, _utils.mapValue)(match.ordinalNumber(dateString, {
+            unit: 'day'
+          }), valueCallback);
+        // Tue
+        case 'ccc':
+          return match.day(dateString, {
+            width: 'abbreviated',
+            context: 'standalone'
+          }) || match.day(dateString, {
+            width: 'short',
+            context: 'standalone'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+        // T
+        case 'ccccc':
+          return match.day(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+        // Tu
+        case 'cccccc':
+          return match.day(dateString, {
+            width: 'short',
+            context: 'standalone'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+        // Tuesday
+        case 'cccc':
+        default:
+          return match.day(dateString, {
+            width: 'wide',
+            context: 'standalone'
+          }) || match.day(dateString, {
+            width: 'abbreviated',
+            context: 'standalone'
+          }) || match.day(dateString, {
+            width: 'short',
+            context: 'standalone'
+          }) || match.day(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 0 && value <= 6;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value, options) {
+      date = (0, _index.default)(date, value, options);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return StandAloneLocalDayParser;
+}(_Parser2.Parser);
+exports.StandAloneLocalDayParser = StandAloneLocalDayParser;

backend/node_modules/date-fns/parse/_lib/parsers/StandAloneMonthParser.js

@@ -0,0 +1,94 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.StandAloneMonthParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _constants = require("../constants.js");
+var _utils = require("../utils.js");
+var StandAloneMonthParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(StandAloneMonthParser, _Parser);
+  var _super = (0, _createSuper2.default)(StandAloneMonthParser);
+  function StandAloneMonthParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, StandAloneMonthParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 110);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['Y', 'R', 'q', 'Q', 'M', 'w', 'I', 'D', 'i', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(StandAloneMonthParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      var valueCallback = function valueCallback(value) {
+        return value - 1;
+      };
+      switch (token) {
+        // 1, 2, ..., 12
+        case 'L':
+          return (0, _utils.mapValue)((0, _utils.parseNumericPattern)(_constants.numericPatterns.month, dateString), valueCallback);
+        // 01, 02, ..., 12
+        case 'LL':
+          return (0, _utils.mapValue)((0, _utils.parseNDigits)(2, dateString), valueCallback);
+        // 1st, 2nd, ..., 12th
+        case 'Lo':
+          return (0, _utils.mapValue)(match.ordinalNumber(dateString, {
+            unit: 'month'
+          }), valueCallback);
+        // Jan, Feb, ..., Dec
+        case 'LLL':
+          return match.month(dateString, {
+            width: 'abbreviated',
+            context: 'standalone'
+          }) || match.month(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+        // J, F, ..., D
+        case 'LLLLL':
+          return match.month(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+        // January, February, ..., December
+        case 'LLLL':
+        default:
+          return match.month(dateString, {
+            width: 'wide',
+            context: 'standalone'
+          }) || match.month(dateString, {
+            width: 'abbreviated',
+            context: 'standalone'
+          }) || match.month(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 0 && value <= 11;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCMonth(value, 1);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return StandAloneMonthParser;
+}(_Parser2.Parser);
+exports.StandAloneMonthParser = StandAloneMonthParser;

backend/node_modules/date-fns/parse/_lib/parsers/StandAloneQuarterParser.js

@@ -0,0 +1,89 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.StandAloneQuarterParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var StandAloneQuarterParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(StandAloneQuarterParser, _Parser);
+  var _super = (0, _createSuper2.default)(StandAloneQuarterParser);
+  function StandAloneQuarterParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, StandAloneQuarterParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 120);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['Y', 'R', 'Q', 'M', 'L', 'w', 'I', 'd', 'D', 'i', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(StandAloneQuarterParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      switch (token) {
+        // 1, 2, 3, 4
+        case 'q':
+        case 'qq':
+          // 01, 02, 03, 04
+          return (0, _utils.parseNDigits)(token.length, dateString);
+        // 1st, 2nd, 3rd, 4th
+        case 'qo':
+          return match.ordinalNumber(dateString, {
+            unit: 'quarter'
+          });
+        // Q1, Q2, Q3, Q4
+        case 'qqq':
+          return match.quarter(dateString, {
+            width: 'abbreviated',
+            context: 'standalone'
+          }) || match.quarter(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+        // 1, 2, 3, 4 (narrow quarter; could be not numerical)
+        case 'qqqqq':
+          return match.quarter(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+        // 1st quarter, 2nd quarter, ...
+        case 'qqqq':
+        default:
+          return match.quarter(dateString, {
+            width: 'wide',
+            context: 'standalone'
+          }) || match.quarter(dateString, {
+            width: 'abbreviated',
+            context: 'standalone'
+          }) || match.quarter(dateString, {
+            width: 'narrow',
+            context: 'standalone'
+          });
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value >= 1 && value <= 4;
+    }
+  }, {
+    key: "set",
+    value: function set(date, _flags, value) {
+      date.setUTCMonth((value - 1) * 3, 1);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return StandAloneQuarterParser;
+}(_Parser2.Parser);
+exports.StandAloneQuarterParser = StandAloneQuarterParser;

backend/node_modules/date-fns/parse/_lib/parsers/TimestampMillisecondsParser.js

@@ -0,0 +1,45 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.TimestampMillisecondsParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var TimestampMillisecondsParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(TimestampMillisecondsParser, _Parser);
+  var _super = (0, _createSuper2.default)(TimestampMillisecondsParser);
+  function TimestampMillisecondsParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, TimestampMillisecondsParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 20);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", '*');
+    return _this;
+  }
+  (0, _createClass2.default)(TimestampMillisecondsParser, [{
+    key: "parse",
+    value: function parse(dateString) {
+      return (0, _utils.parseAnyDigitsSigned)(dateString);
+    }
+  }, {
+    key: "set",
+    value: function set(_date, _flags, value) {
+      return [new Date(value), {
+        timestampIsSet: true
+      }];
+    }
+  }]);
+  return TimestampMillisecondsParser;
+}(_Parser2.Parser);
+exports.TimestampMillisecondsParser = TimestampMillisecondsParser;

backend/node_modules/date-fns/parse/_lib/parsers/TimestampSecondsParser.js

@@ -0,0 +1,45 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.TimestampSecondsParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+var TimestampSecondsParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(TimestampSecondsParser, _Parser);
+  var _super = (0, _createSuper2.default)(TimestampSecondsParser);
+  function TimestampSecondsParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, TimestampSecondsParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 40);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", '*');
+    return _this;
+  }
+  (0, _createClass2.default)(TimestampSecondsParser, [{
+    key: "parse",
+    value: function parse(dateString) {
+      return (0, _utils.parseAnyDigitsSigned)(dateString);
+    }
+  }, {
+    key: "set",
+    value: function set(_date, _flags, value) {
+      return [new Date(value * 1000), {
+        timestampIsSet: true
+      }];
+    }
+  }]);
+  return TimestampSecondsParser;
+}(_Parser2.Parser);
+exports.TimestampSecondsParser = TimestampSecondsParser;

backend/node_modules/date-fns/parse/_lib/parsers/YearParser.js

@@ -0,0 +1,81 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.YearParser = void 0;
+var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));
+var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));
+var _assertThisInitialized2 = _interopRequireDefault(require("@babel/runtime/helpers/assertThisInitialized"));
+var _inherits2 = _interopRequireDefault(require("@babel/runtime/helpers/inherits"));
+var _createSuper2 = _interopRequireDefault(require("@babel/runtime/helpers/createSuper"));
+var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
+var _Parser2 = require("../Parser.js");
+var _utils = require("../utils.js");
+// From http://www.unicode.org/reports/tr35/tr35-31/tr35-dates.html#Date_Format_Patterns
+// | Year     |     y | yy |   yyy |  yyyy | yyyyy |
+// |----------|-------|----|-------|-------|-------|
+// | AD 1     |     1 | 01 |   001 |  0001 | 00001 |
+// | AD 12    |    12 | 12 |   012 |  0012 | 00012 |
+// | AD 123   |   123 | 23 |   123 |  0123 | 00123 |
+// | AD 1234  |  1234 | 34 |  1234 |  1234 | 01234 |
+// | AD 12345 | 12345 | 45 | 12345 | 12345 | 12345 |
+var YearParser = /*#__PURE__*/function (_Parser) {
+  (0, _inherits2.default)(YearParser, _Parser);
+  var _super = (0, _createSuper2.default)(YearParser);
+  function YearParser() {
+    var _this;
+    (0, _classCallCheck2.default)(this, YearParser);
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    _this = _super.call.apply(_super, [this].concat(args));
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "priority", 130);
+    (0, _defineProperty2.default)((0, _assertThisInitialized2.default)(_this), "incompatibleTokens", ['Y', 'R', 'u', 'w', 'I', 'i', 'e', 'c', 't', 'T']);
+    return _this;
+  }
+  (0, _createClass2.default)(YearParser, [{
+    key: "parse",
+    value: function parse(dateString, token, match) {
+      var valueCallback = function valueCallback(year) {
+        return {
+          year: year,
+          isTwoDigitYear: token === 'yy'
+        };
+      };
+      switch (token) {
+        case 'y':
+          return (0, _utils.mapValue)((0, _utils.parseNDigits)(4, dateString), valueCallback);
+        case 'yo':
+          return (0, _utils.mapValue)(match.ordinalNumber(dateString, {
+            unit: 'year'
+          }), valueCallback);
+        default:
+          return (0, _utils.mapValue)((0, _utils.parseNDigits)(token.length, dateString), valueCallback);
+      }
+    }
+  }, {
+    key: "validate",
+    value: function validate(_date, value) {
+      return value.isTwoDigitYear || value.year > 0;
+    }
+  }, {
+    key: "set",
+    value: function set(date, flags, value) {
+      var currentYear = date.getUTCFullYear();
+      if (value.isTwoDigitYear) {
+        var normalizedTwoDigitYear = (0, _utils.normalizeTwoDigitYear)(value.year, currentYear);
+        date.setUTCFullYear(normalizedTwoDigitYear, 0, 1);
+        date.setUTCHours(0, 0, 0, 0);
+        return date;
+      }
+      var year = !('era' in flags) || flags.era === 1 ? value.year : 1 - value.year;
+      date.setUTCFullYear(year, 0, 1);
+      date.setUTCHours(0, 0, 0, 0);
+      return date;
+    }
+  }]);
+  return YearParser;
+}(_Parser2.Parser);
+exports.YearParser = YearParser;

backend/node_modules/date-fns/parse/_lib/parsers/index.js

@@ -0,0 +1,114 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.parsers = void 0;
+var _EraParser = require("./EraParser.js");
+var _YearParser = require("./YearParser.js");
+var _LocalWeekYearParser = require("./LocalWeekYearParser.js");
+var _ISOWeekYearParser = require("./ISOWeekYearParser.js");
+var _ExtendedYearParser = require("./ExtendedYearParser.js");
+var _QuarterParser = require("./QuarterParser.js");
+var _StandAloneQuarterParser = require("./StandAloneQuarterParser.js");
+var _MonthParser = require("./MonthParser.js");
+var _StandAloneMonthParser = require("./StandAloneMonthParser.js");
+var _LocalWeekParser = require("./LocalWeekParser.js");
+var _ISOWeekParser = require("./ISOWeekParser.js");
+var _DateParser = require("./DateParser.js");
+var _DayOfYearParser = require("./DayOfYearParser.js");
+var _DayParser = require("./DayParser.js");
+var _LocalDayParser = require("./LocalDayParser.js");
+var _StandAloneLocalDayParser = require("./StandAloneLocalDayParser.js");
+var _ISODayParser = require("./ISODayParser.js");
+var _AMPMParser = require("./AMPMParser.js");
+var _AMPMMidnightParser = require("./AMPMMidnightParser.js");
+var _DayPeriodParser = require("./DayPeriodParser.js");
+var _Hour1to12Parser = require("./Hour1to12Parser.js");
+var _Hour0to23Parser = require("./Hour0to23Parser.js");
+var _Hour0To11Parser = require("./Hour0To11Parser.js");
+var _Hour1To24Parser = require("./Hour1To24Parser.js");
+var _MinuteParser = require("./MinuteParser.js");
+var _SecondParser = require("./SecondParser.js");
+var _FractionOfSecondParser = require("./FractionOfSecondParser.js");
+var _ISOTimezoneWithZParser = require("./ISOTimezoneWithZParser.js");
+var _ISOTimezoneParser = require("./ISOTimezoneParser.js");
+var _TimestampSecondsParser = require("./TimestampSecondsParser.js");
+var _TimestampMillisecondsParser = require("./TimestampMillisecondsParser.js");
+/*
+ * |     | Unit                           |     | Unit                           |
+ * |-----|--------------------------------|-----|--------------------------------|
+ * |  a  | AM, PM                         |  A* | Milliseconds in day            |
+ * |  b  | AM, PM, noon, midnight         |  B  | Flexible day period            |
+ * |  c  | Stand-alone local day of week  |  C* | Localized hour w/ day period   |
+ * |  d  | Day of month                   |  D  | Day of year                    |
+ * |  e  | Local day of week              |  E  | Day of week                    |
+ * |  f  |                                |  F* | Day of week in month           |
+ * |  g* | Modified Julian day            |  G  | Era                            |
+ * |  h  | Hour [1-12]                    |  H  | Hour [0-23]                    |
+ * |  i! | ISO day of week                |  I! | ISO week of year               |
+ * |  j* | Localized hour w/ day period   |  J* | Localized hour w/o day period  |
+ * |  k  | Hour [1-24]                    |  K  | Hour [0-11]                    |
+ * |  l* | (deprecated)                   |  L  | Stand-alone month              |
+ * |  m  | Minute                         |  M  | Month                          |
+ * |  n  |                                |  N  |                                |
+ * |  o! | Ordinal number modifier        |  O* | Timezone (GMT)                 |
+ * |  p  |                                |  P  |                                |
+ * |  q  | Stand-alone quarter            |  Q  | Quarter                        |
+ * |  r* | Related Gregorian year         |  R! | ISO week-numbering year        |
+ * |  s  | Second                         |  S  | Fraction of second             |
+ * |  t! | Seconds timestamp              |  T! | Milliseconds timestamp         |
+ * |  u  | Extended year                  |  U* | Cyclic year                    |
+ * |  v* | Timezone (generic non-locat.)  |  V* | Timezone (location)            |
+ * |  w  | Local week of year             |  W* | Week of month                  |
+ * |  x  | Timezone (ISO-8601 w/o Z)      |  X  | Timezone (ISO-8601)            |
+ * |  y  | Year (abs)                     |  Y  | Local week-numbering year      |
+ * |  z* | Timezone (specific non-locat.) |  Z* | Timezone (aliases)             |
+ *
+ * Letters marked by * are not implemented but reserved by Unicode standard.
+ *
+ * Letters marked by ! are non-standard, but implemented by date-fns:
+ * - `o` modifies the previous token to turn it into an ordinal (see `parse` docs)
+ * - `i` is ISO day of week. For `i` and `ii` is returns numeric ISO week days,
+ *   i.e. 7 for Sunday, 1 for Monday, etc.
+ * - `I` is ISO week of year, as opposed to `w` which is local week of year.
+ * - `R` is ISO week-numbering year, as opposed to `Y` which is local week-numbering year.
+ *   `R` is supposed to be used in conjunction with `I` and `i`
+ *   for universal ISO week-numbering date, whereas
+ *   `Y` is supposed to be used in conjunction with `w` and `e`
+ *   for week-numbering date specific to the locale.
+ */
+var parsers = {
+  G: new _EraParser.EraParser(),
+  y: new _YearParser.YearParser(),
+  Y: new _LocalWeekYearParser.LocalWeekYearParser(),
+  R: new _ISOWeekYearParser.ISOWeekYearParser(),
+  u: new _ExtendedYearParser.ExtendedYearParser(),
+  Q: new _QuarterParser.QuarterParser(),
+  q: new _StandAloneQuarterParser.StandAloneQuarterParser(),
+  M: new _MonthParser.MonthParser(),
+  L: new _StandAloneMonthParser.StandAloneMonthParser(),
+  w: new _LocalWeekParser.LocalWeekParser(),
+  I: new _ISOWeekParser.ISOWeekParser(),
+  d: new _DateParser.DateParser(),
+  D: new _DayOfYearParser.DayOfYearParser(),
+  E: new _DayParser.DayParser(),
+  e: new _LocalDayParser.LocalDayParser(),
+  c: new _StandAloneLocalDayParser.StandAloneLocalDayParser(),
+  i: new _ISODayParser.ISODayParser(),
+  a: new _AMPMParser.AMPMParser(),
+  b: new _AMPMMidnightParser.AMPMMidnightParser(),
+  B: new _DayPeriodParser.DayPeriodParser(),
+  h: new _Hour1to12Parser.Hour1to12Parser(),
+  H: new _Hour0to23Parser.Hour0to23Parser(),
+  K: new _Hour0To11Parser.Hour0To11Parser(),
+  k: new _Hour1To24Parser.Hour1To24Parser(),
+  m: new _MinuteParser.MinuteParser(),
+  s: new _SecondParser.SecondParser(),
+  S: new _FractionOfSecondParser.FractionOfSecondParser(),
+  X: new _ISOTimezoneWithZParser.ISOTimezoneWithZParser(),
+  x: new _ISOTimezoneParser.ISOTimezoneParser(),
+  t: new _TimestampSecondsParser.TimestampSecondsParser(),
+  T: new _TimestampMillisecondsParser.TimestampMillisecondsParser()
+};
+exports.parsers = parsers;

backend/node_modules/date-fns/parse/_lib/types.js

@@ -0,0 +1,5 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});

backend/node_modules/date-fns/parse/_lib/utils.js

@@ -0,0 +1,126 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.dayPeriodEnumToHours = dayPeriodEnumToHours;
+exports.isLeapYearIndex = isLeapYearIndex;
+exports.mapValue = mapValue;
+exports.normalizeTwoDigitYear = normalizeTwoDigitYear;
+exports.parseAnyDigitsSigned = parseAnyDigitsSigned;
+exports.parseNDigits = parseNDigits;
+exports.parseNDigitsSigned = parseNDigitsSigned;
+exports.parseNumericPattern = parseNumericPattern;
+exports.parseTimezonePattern = parseTimezonePattern;
+var _index = require("../../constants/index.js");
+var _constants = require("./constants.js");
+function mapValue(parseFnResult, mapFn) {
+  if (!parseFnResult) {
+    return parseFnResult;
+  }
+  return {
+    value: mapFn(parseFnResult.value),
+    rest: parseFnResult.rest
+  };
+}
+function parseNumericPattern(pattern, dateString) {
+  var matchResult = dateString.match(pattern);
+  if (!matchResult) {
+    return null;
+  }
+  return {
+    value: parseInt(matchResult[0], 10),
+    rest: dateString.slice(matchResult[0].length)
+  };
+}
+function parseTimezonePattern(pattern, dateString) {
+  var matchResult = dateString.match(pattern);
+  if (!matchResult) {
+    return null;
+  }
+
+  // Input is 'Z'
+  if (matchResult[0] === 'Z') {
+    return {
+      value: 0,
+      rest: dateString.slice(1)
+    };
+  }
+  var sign = matchResult[1] === '+' ? 1 : -1;
+  var hours = matchResult[2] ? parseInt(matchResult[2], 10) : 0;
+  var minutes = matchResult[3] ? parseInt(matchResult[3], 10) : 0;
+  var seconds = matchResult[5] ? parseInt(matchResult[5], 10) : 0;
+  return {
+    value: sign * (hours * _index.millisecondsInHour + minutes * _index.millisecondsInMinute + seconds * _index.millisecondsInSecond),
+    rest: dateString.slice(matchResult[0].length)
+  };
+}
+function parseAnyDigitsSigned(dateString) {
+  return parseNumericPattern(_constants.numericPatterns.anyDigitsSigned, dateString);
+}
+function parseNDigits(n, dateString) {
+  switch (n) {
+    case 1:
+      return parseNumericPattern(_constants.numericPatterns.singleDigit, dateString);
+    case 2:
+      return parseNumericPattern(_constants.numericPatterns.twoDigits, dateString);
+    case 3:
+      return parseNumericPattern(_constants.numericPatterns.threeDigits, dateString);
+    case 4:
+      return parseNumericPattern(_constants.numericPatterns.fourDigits, dateString);
+    default:
+      return parseNumericPattern(new RegExp('^\\d{1,' + n + '}'), dateString);
+  }
+}
+function parseNDigitsSigned(n, dateString) {
+  switch (n) {
+    case 1:
+      return parseNumericPattern(_constants.numericPatterns.singleDigitSigned, dateString);
+    case 2:
+      return parseNumericPattern(_constants.numericPatterns.twoDigitsSigned, dateString);
+    case 3:
+      return parseNumericPattern(_constants.numericPatterns.threeDigitsSigned, dateString);
+    case 4:
+      return parseNumericPattern(_constants.numericPatterns.fourDigitsSigned, dateString);
+    default:
+      return parseNumericPattern(new RegExp('^-?\\d{1,' + n + '}'), dateString);
+  }
+}
+function dayPeriodEnumToHours(dayPeriod) {
+  switch (dayPeriod) {
+    case 'morning':
+      return 4;
+    case 'evening':
+      return 17;
+    case 'pm':
+    case 'noon':
+    case 'afternoon':
+      return 12;
+    case 'am':
+    case 'midnight':
+    case 'night':
+    default:
+      return 0;
+  }
+}
+function normalizeTwoDigitYear(twoDigitYear, currentYear) {
+  var isCommonEra = currentYear > 0;
+  // Absolute number of the current year:
+  // 1 -> 1 AC
+  // 0 -> 1 BC
+  // -1 -> 2 BC
+  var absCurrentYear = isCommonEra ? currentYear : 1 - currentYear;
+  var result;
+  if (absCurrentYear <= 50) {
+    result = twoDigitYear || 100;
+  } else {
+    var rangeEnd = absCurrentYear + 50;
+    var rangeEndCentury = Math.floor(rangeEnd / 100) * 100;
+    var isPreviousCentury = twoDigitYear >= rangeEnd % 100;
+    result = twoDigitYear + rangeEndCentury - (isPreviousCentury ? 100 : 0);
+  }
+  return isCommonEra ? result : 1 - result;
+}
+function isLeapYearIndex(year) {
+  return year % 400 === 0 || year % 4 === 0 && year % 100 !== 0;
+}

backend/node_modules/date-fns/parse/index.d.ts

@@ -0,0 +1,4 @@
+// This file is generated automatically by `scripts/build/typings.js`. Please, don't change it.
+
+import { parse } from 'date-fns'
+export default parse

backend/node_modules/date-fns/parse/index.js

@@ -0,0 +1,514 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = parse;
+var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));
+var _createForOfIteratorHelper2 = _interopRequireDefault(require("@babel/runtime/helpers/createForOfIteratorHelper"));
+var _index = _interopRequireDefault(require("../_lib/defaultLocale/index.js"));
+var _index2 = _interopRequireDefault(require("../subMilliseconds/index.js"));
+var _index3 = _interopRequireDefault(require("../toDate/index.js"));
+var _index4 = _interopRequireDefault(require("../_lib/assign/index.js"));
+var _index5 = _interopRequireDefault(require("../_lib/format/longFormatters/index.js"));
+var _index6 = _interopRequireDefault(require("../_lib/getTimezoneOffsetInMilliseconds/index.js"));
+var _index7 = require("../_lib/protectedTokens/index.js");
+var _index8 = _interopRequireDefault(require("../_lib/toInteger/index.js"));
+var _index9 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
+var _Setter = require("./_lib/Setter.js");
+var _index10 = require("./_lib/parsers/index.js");
+var _index11 = require("../_lib/defaultOptions/index.js");
+// This RegExp consists of three parts separated by `|`:
+// - [yYQqMLwIdDecihHKkms]o matches any available ordinal number token
+//   (one of the certain letters followed by `o`)
+// - (\w)\1* matches any sequences of the same letter
+// - '' matches two quote characters in a row
+// - '(''|[^'])+('|$) matches anything surrounded by two quote characters ('),
+//   except a single quote symbol, which ends the sequence.
+//   Two quote characters do not end the sequence.
+//   If there is no matching single quote
+//   then the sequence will continue until the end of the string.
+// - . matches any single character unmatched by previous parts of the RegExps
+var formattingTokensRegExp = /[yYQqMLwIdDecihHKkms]o|(\w)\1*|''|'(''|[^'])+('|$)|./g;
+
+// This RegExp catches symbols escaped by quotes, and also
+// sequences of symbols P, p, and the combinations like `PPPPPPPppppp`
+var longFormattingTokensRegExp = /P+p+|P+|p+|''|'(''|[^'])+('|$)|./g;
+var escapedStringRegExp = /^'([^]*?)'?$/;
+var doubleQuoteRegExp = /''/g;
+var notWhitespaceRegExp = /\S/;
+var unescapedLatinCharacterRegExp = /[a-zA-Z]/;
+
+/**
+ * @name parse
+ * @category Common Helpers
+ * @summary Parse the date.
+ *
+ * @description
+ * Return the date parsed from string using the given format string.
+ *
+ * > ⚠️ Please note that the `format` tokens differ from Moment.js and other libraries.
+ * > See: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
+ *
+ * The characters in the format string wrapped between two single quotes characters (') are escaped.
+ * Two single quotes in a row, whether inside or outside a quoted sequence, represent a 'real' single quote.
+ *
+ * Format of the format string is based on Unicode Technical Standard #35:
+ * https://www.unicode.org/reports/tr35/tr35-dates.html#Date_Field_Symbol_Table
+ * with a few additions (see note 5 below the table).
+ *
+ * Not all tokens are compatible. Combinations that don't make sense or could lead to bugs are prohibited
+ * and will throw `RangeError`. For example usage of 24-hour format token with AM/PM token will throw an exception:
+ *
+ * ```javascript
+ * parse('23 AM', 'HH a', new Date())
+ * //=> RangeError: The format string mustn't contain `HH` and `a` at the same time
+ * ```
+ *
+ * See the compatibility table: https://docs.google.com/spreadsheets/d/e/2PACX-1vQOPU3xUhplll6dyoMmVUXHKl_8CRDs6_ueLmex3SoqwhuolkuN3O05l4rqx5h1dKX8eb46Ul-CCSrq/pubhtml?gid=0&single=true
+ *
+ * Accepted format string patterns:
+ * | Unit                            |Prior| Pattern | Result examples                   | Notes |
+ * |---------------------------------|-----|---------|-----------------------------------|-------|
+ * | Era                             | 140 | G..GGG  | AD, BC                            |       |
+ * |                                 |     | GGGG    | Anno Domini, Before Christ        | 2     |
+ * |                                 |     | GGGGG   | A, B                              |       |
+ * | Calendar year                   | 130 | y       | 44, 1, 1900, 2017, 9999           | 4     |
+ * |                                 |     | yo      | 44th, 1st, 1900th, 9999999th      | 4,5   |
+ * |                                 |     | yy      | 44, 01, 00, 17                    | 4     |
+ * |                                 |     | yyy     | 044, 001, 123, 999                | 4     |
+ * |                                 |     | yyyy    | 0044, 0001, 1900, 2017            | 4     |
+ * |                                 |     | yyyyy   | ...                               | 2,4   |
+ * | Local week-numbering year       | 130 | Y       | 44, 1, 1900, 2017, 9000           | 4     |
+ * |                                 |     | Yo      | 44th, 1st, 1900th, 9999999th      | 4,5   |
+ * |                                 |     | YY      | 44, 01, 00, 17                    | 4,6   |
+ * |                                 |     | YYY     | 044, 001, 123, 999                | 4     |
+ * |                                 |     | YYYY    | 0044, 0001, 1900, 2017            | 4,6   |
+ * |                                 |     | YYYYY   | ...                               | 2,4   |
+ * | ISO week-numbering year         | 130 | R       | -43, 1, 1900, 2017, 9999, -9999   | 4,5   |
+ * |                                 |     | RR      | -43, 01, 00, 17                   | 4,5   |
+ * |                                 |     | RRR     | -043, 001, 123, 999, -999         | 4,5   |
+ * |                                 |     | RRRR    | -0043, 0001, 2017, 9999, -9999    | 4,5   |
+ * |                                 |     | RRRRR   | ...                               | 2,4,5 |
+ * | Extended year                   | 130 | u       | -43, 1, 1900, 2017, 9999, -999    | 4     |
+ * |                                 |     | uu      | -43, 01, 99, -99                  | 4     |
+ * |                                 |     | uuu     | -043, 001, 123, 999, -999         | 4     |
+ * |                                 |     | uuuu    | -0043, 0001, 2017, 9999, -9999    | 4     |
+ * |                                 |     | uuuuu   | ...                               | 2,4   |
+ * | Quarter (formatting)            | 120 | Q       | 1, 2, 3, 4                        |       |
+ * |                                 |     | Qo      | 1st, 2nd, 3rd, 4th                | 5     |
+ * |                                 |     | QQ      | 01, 02, 03, 04                    |       |
+ * |                                 |     | QQQ     | Q1, Q2, Q3, Q4                    |       |
+ * |                                 |     | QQQQ    | 1st quarter, 2nd quarter, ...     | 2     |
+ * |                                 |     | QQQQQ   | 1, 2, 3, 4                        | 4     |
+ * | Quarter (stand-alone)           | 120 | q       | 1, 2, 3, 4                        |       |
+ * |                                 |     | qo      | 1st, 2nd, 3rd, 4th                | 5     |
+ * |                                 |     | qq      | 01, 02, 03, 04                    |       |
+ * |                                 |     | qqq     | Q1, Q2, Q3, Q4                    |       |
+ * |                                 |     | qqqq    | 1st quarter, 2nd quarter, ...     | 2     |
+ * |                                 |     | qqqqq   | 1, 2, 3, 4                        | 3     |
+ * | Month (formatting)              | 110 | M       | 1, 2, ..., 12                     |       |
+ * |                                 |     | Mo      | 1st, 2nd, ..., 12th               | 5     |
+ * |                                 |     | MM      | 01, 02, ..., 12                   |       |
+ * |                                 |     | MMM     | Jan, Feb, ..., Dec                |       |
+ * |                                 |     | MMMM    | January, February, ..., December  | 2     |
+ * |                                 |     | MMMMM   | J, F, ..., D                      |       |
+ * | Month (stand-alone)             | 110 | L       | 1, 2, ..., 12                     |       |
+ * |                                 |     | Lo      | 1st, 2nd, ..., 12th               | 5     |
+ * |                                 |     | LL      | 01, 02, ..., 12                   |       |
+ * |                                 |     | LLL     | Jan, Feb, ..., Dec                |       |
+ * |                                 |     | LLLL    | January, February, ..., December  | 2     |
+ * |                                 |     | LLLLL   | J, F, ..., D                      |       |
+ * | Local week of year              | 100 | w       | 1, 2, ..., 53                     |       |
+ * |                                 |     | wo      | 1st, 2nd, ..., 53th               | 5     |
+ * |                                 |     | ww      | 01, 02, ..., 53                   |       |
+ * | ISO week of year                | 100 | I       | 1, 2, ..., 53                     | 5     |
+ * |                                 |     | Io      | 1st, 2nd, ..., 53th               | 5     |
+ * |                                 |     | II      | 01, 02, ..., 53                   | 5     |
+ * | Day of month                    |  90 | d       | 1, 2, ..., 31                     |       |
+ * |                                 |     | do      | 1st, 2nd, ..., 31st               | 5     |
+ * |                                 |     | dd      | 01, 02, ..., 31                   |       |
+ * | Day of year                     |  90 | D       | 1, 2, ..., 365, 366               | 7     |
+ * |                                 |     | Do      | 1st, 2nd, ..., 365th, 366th       | 5     |
+ * |                                 |     | DD      | 01, 02, ..., 365, 366             | 7     |
+ * |                                 |     | DDD     | 001, 002, ..., 365, 366           |       |
+ * |                                 |     | DDDD    | ...                               | 2     |
+ * | Day of week (formatting)        |  90 | E..EEE  | Mon, Tue, Wed, ..., Sun           |       |
+ * |                                 |     | EEEE    | Monday, Tuesday, ..., Sunday      | 2     |
+ * |                                 |     | EEEEE   | M, T, W, T, F, S, S               |       |
+ * |                                 |     | EEEEEE  | Mo, Tu, We, Th, Fr, Sa, Su        |       |
+ * | ISO day of week (formatting)    |  90 | i       | 1, 2, 3, ..., 7                   | 5     |
+ * |                                 |     | io      | 1st, 2nd, ..., 7th                | 5     |
+ * |                                 |     | ii      | 01, 02, ..., 07                   | 5     |
+ * |                                 |     | iii     | Mon, Tue, Wed, ..., Sun           | 5     |
+ * |                                 |     | iiii    | Monday, Tuesday, ..., Sunday      | 2,5   |
+ * |                                 |     | iiiii   | M, T, W, T, F, S, S               | 5     |
+ * |                                 |     | iiiiii  | Mo, Tu, We, Th, Fr, Sa, Su        | 5     |
+ * | Local day of week (formatting)  |  90 | e       | 2, 3, 4, ..., 1                   |       |
+ * |                                 |     | eo      | 2nd, 3rd, ..., 1st                | 5     |
+ * |                                 |     | ee      | 02, 03, ..., 01                   |       |
+ * |                                 |     | eee     | Mon, Tue, Wed, ..., Sun           |       |
+ * |                                 |     | eeee    | Monday, Tuesday, ..., Sunday      | 2     |
+ * |                                 |     | eeeee   | M, T, W, T, F, S, S               |       |
+ * |                                 |     | eeeeee  | Mo, Tu, We, Th, Fr, Sa, Su        |       |
+ * | Local day of week (stand-alone) |  90 | c       | 2, 3, 4, ..., 1                   |       |
+ * |                                 |     | co      | 2nd, 3rd, ..., 1st                | 5     |
+ * |                                 |     | cc      | 02, 03, ..., 01                   |       |
+ * |                                 |     | ccc     | Mon, Tue, Wed, ..., Sun           |       |
+ * |                                 |     | cccc    | Monday, Tuesday, ..., Sunday      | 2     |
+ * |                                 |     | ccccc   | M, T, W, T, F, S, S               |       |
+ * |                                 |     | cccccc  | Mo, Tu, We, Th, Fr, Sa, Su        |       |
+ * | AM, PM                          |  80 | a..aaa  | AM, PM                            |       |
+ * |                                 |     | aaaa    | a.m., p.m.                        | 2     |
+ * |                                 |     | aaaaa   | a, p                              |       |
+ * | AM, PM, noon, midnight          |  80 | b..bbb  | AM, PM, noon, midnight            |       |
+ * |                                 |     | bbbb    | a.m., p.m., noon, midnight        | 2     |
+ * |                                 |     | bbbbb   | a, p, n, mi                       |       |
+ * | Flexible day period             |  80 | B..BBB  | at night, in the morning, ...     |       |
+ * |                                 |     | BBBB    | at night, in the morning, ...     | 2     |
+ * |                                 |     | BBBBB   | at night, in the morning, ...     |       |
+ * | Hour [1-12]                     |  70 | h       | 1, 2, ..., 11, 12                 |       |
+ * |                                 |     | ho      | 1st, 2nd, ..., 11th, 12th         | 5     |
+ * |                                 |     | hh      | 01, 02, ..., 11, 12               |       |
+ * | Hour [0-23]                     |  70 | H       | 0, 1, 2, ..., 23                  |       |
+ * |                                 |     | Ho      | 0th, 1st, 2nd, ..., 23rd          | 5     |
+ * |                                 |     | HH      | 00, 01, 02, ..., 23               |       |
+ * | Hour [0-11]                     |  70 | K       | 1, 2, ..., 11, 0                  |       |
+ * |                                 |     | Ko      | 1st, 2nd, ..., 11th, 0th          | 5     |
+ * |                                 |     | KK      | 01, 02, ..., 11, 00               |       |
+ * | Hour [1-24]                     |  70 | k       | 24, 1, 2, ..., 23                 |       |
+ * |                                 |     | ko      | 24th, 1st, 2nd, ..., 23rd         | 5     |
+ * |                                 |     | kk      | 24, 01, 02, ..., 23               |       |
+ * | Minute                          |  60 | m       | 0, 1, ..., 59                     |       |
+ * |                                 |     | mo      | 0th, 1st, ..., 59th               | 5     |
+ * |                                 |     | mm      | 00, 01, ..., 59                   |       |
+ * | Second                          |  50 | s       | 0, 1, ..., 59                     |       |
+ * |                                 |     | so      | 0th, 1st, ..., 59th               | 5     |
+ * |                                 |     | ss      | 00, 01, ..., 59                   |       |
+ * | Seconds timestamp               |  40 | t       | 512969520                         |       |
+ * |                                 |     | tt      | ...                               | 2     |
+ * | Fraction of second              |  30 | S       | 0, 1, ..., 9                      |       |
+ * |                                 |     | SS      | 00, 01, ..., 99                   |       |
+ * |                                 |     | SSS     | 000, 001, ..., 999                |       |
+ * |                                 |     | SSSS    | ...                               | 2     |
+ * | Milliseconds timestamp          |  20 | T       | 512969520900                      |       |
+ * |                                 |     | TT      | ...                               | 2     |
+ * | Timezone (ISO-8601 w/ Z)        |  10 | X       | -08, +0530, Z                     |       |
+ * |                                 |     | XX      | -0800, +0530, Z                   |       |
+ * |                                 |     | XXX     | -08:00, +05:30, Z                 |       |
+ * |                                 |     | XXXX    | -0800, +0530, Z, +123456          | 2     |
+ * |                                 |     | XXXXX   | -08:00, +05:30, Z, +12:34:56      |       |
+ * | Timezone (ISO-8601 w/o Z)       |  10 | x       | -08, +0530, +00                   |       |
+ * |                                 |     | xx      | -0800, +0530, +0000               |       |
+ * |                                 |     | xxx     | -08:00, +05:30, +00:00            | 2     |
+ * |                                 |     | xxxx    | -0800, +0530, +0000, +123456      |       |
+ * |                                 |     | xxxxx   | -08:00, +05:30, +00:00, +12:34:56 |       |
+ * | Long localized date             |  NA | P       | 05/29/1453                        | 5,8   |
+ * |                                 |     | PP      | May 29, 1453                      |       |
+ * |                                 |     | PPP     | May 29th, 1453                    |       |
+ * |                                 |     | PPPP    | Sunday, May 29th, 1453            | 2,5,8 |
+ * | Long localized time             |  NA | p       | 12:00 AM                          | 5,8   |
+ * |                                 |     | pp      | 12:00:00 AM                       |       |
+ * | Combination of date and time    |  NA | Pp      | 05/29/1453, 12:00 AM              |       |
+ * |                                 |     | PPpp    | May 29, 1453, 12:00:00 AM         |       |
+ * |                                 |     | PPPpp   | May 29th, 1453 at ...             |       |
+ * |                                 |     | PPPPpp  | Sunday, May 29th, 1453 at ...     | 2,5,8 |
+ * Notes:
+ * 1. "Formatting" units (e.g. formatting quarter) in the default en-US locale
+ *    are the same as "stand-alone" units, but are different in some languages.
+ *    "Formatting" units are declined according to the rules of the language
+ *    in the context of a date. "Stand-alone" units are always nominative singular.
+ *    In `format` function, they will produce different result:
+ *
+ *    `format(new Date(2017, 10, 6), 'do LLLL', {locale: cs}) //=> '6. listopad'`
+ *
+ *    `format(new Date(2017, 10, 6), 'do MMMM', {locale: cs}) //=> '6. listopadu'`
+ *
+ *    `parse` will try to match both formatting and stand-alone units interchangably.
+ *
+ * 2. Any sequence of the identical letters is a pattern, unless it is escaped by
+ *    the single quote characters (see below).
+ *    If the sequence is longer than listed in table:
+ *    - for numerical units (`yyyyyyyy`) `parse` will try to match a number
+ *      as wide as the sequence
+ *    - for text units (`MMMMMMMM`) `parse` will try to match the widest variation of the unit.
+ *      These variations are marked with "2" in the last column of the table.
+ *
+ * 3. `QQQQQ` and `qqqqq` could be not strictly numerical in some locales.
+ *    These tokens represent the shortest form of the quarter.
+ *
+ * 4. The main difference between `y` and `u` patterns are B.C. years:
+ *
+ *    | Year | `y` | `u` |
+ *    |------|-----|-----|
+ *    | AC 1 |   1 |   1 |
+ *    | BC 1 |   1 |   0 |
+ *    | BC 2 |   2 |  -1 |
+ *
+ *    Also `yy` will try to guess the century of two digit year by proximity with `referenceDate`:
+ *
+ *    `parse('50', 'yy', new Date(2018, 0, 1)) //=> Sat Jan 01 2050 00:00:00`
+ *
+ *    `parse('75', 'yy', new Date(2018, 0, 1)) //=> Wed Jan 01 1975 00:00:00`
+ *
+ *    while `uu` will just assign the year as is:
+ *
+ *    `parse('50', 'uu', new Date(2018, 0, 1)) //=> Sat Jan 01 0050 00:00:00`
+ *
+ *    `parse('75', 'uu', new Date(2018, 0, 1)) //=> Tue Jan 01 0075 00:00:00`
+ *
+ *    The same difference is true for local and ISO week-numbering years (`Y` and `R`),
+ *    except local week-numbering years are dependent on `options.weekStartsOn`
+ *    and `options.firstWeekContainsDate` (compare [setISOWeekYear]{@link https://date-fns.org/docs/setISOWeekYear}
+ *    and [setWeekYear]{@link https://date-fns.org/docs/setWeekYear}).
+ *
+ * 5. These patterns are not in the Unicode Technical Standard #35:
+ *    - `i`: ISO day of week
+ *    - `I`: ISO week of year
+ *    - `R`: ISO week-numbering year
+ *    - `o`: ordinal number modifier
+ *    - `P`: long localized date
+ *    - `p`: long localized time
+ *
+ * 6. `YY` and `YYYY` tokens represent week-numbering years but they are often confused with years.
+ *    You should enable `options.useAdditionalWeekYearTokens` to use them. See: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
+ *
+ * 7. `D` and `DD` tokens represent days of the year but they are ofthen confused with days of the month.
+ *    You should enable `options.useAdditionalDayOfYearTokens` to use them. See: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
+ *
+ * 8. `P+` tokens do not have a defined priority since they are merely aliases to other tokens based
+ *    on the given locale.
+ *
+ *    using `en-US` locale: `P` => `MM/dd/yyyy`
+ *    using `en-US` locale: `p` => `hh:mm a`
+ *    using `pt-BR` locale: `P` => `dd/MM/yyyy`
+ *    using `pt-BR` locale: `p` => `HH:mm`
+ *
+ * Values will be assigned to the date in the descending order of its unit's priority.
+ * Units of an equal priority overwrite each other in the order of appearance.
+ *
+ * If no values of higher priority are parsed (e.g. when parsing string 'January 1st' without a year),
+ * the values will be taken from 3rd argument `referenceDate` which works as a context of parsing.
+ *
+ * `referenceDate` must be passed for correct work of the function.
+ * If you're not sure which `referenceDate` to supply, create a new instance of Date:
+ * `parse('02/11/2014', 'MM/dd/yyyy', new Date())`
+ * In this case parsing will be done in the context of the current date.
+ * If `referenceDate` is `Invalid Date` or a value not convertible to valid `Date`,
+ * then `Invalid Date` will be returned.
+ *
+ * The result may vary by locale.
+ *
+ * If `formatString` matches with `dateString` but does not provides tokens, `referenceDate` will be returned.
+ *
+ * If parsing failed, `Invalid Date` will be returned.
+ * Invalid Date is a Date, whose time value is NaN.
+ * Time value of Date: http://es5.github.io/#x15.9.1.1
+ *
+ * @param {String} dateString - the string to parse
+ * @param {String} formatString - the string of tokens
+ * @param {Date|Number} referenceDate - defines values missing from the parsed dateString
+ * @param {Object} [options] - an object with options.
+ * @param {Locale} [options.locale=defaultLocale] - the locale object. See [Locale]{@link https://date-fns.org/docs/Locale}
+ * @param {0|1|2|3|4|5|6} [options.weekStartsOn=0] - the index of the first day of the week (0 - Sunday)
+ * @param {1|2|3|4|5|6|7} [options.firstWeekContainsDate=1] - the day of January, which is always in the first week of the year
+ * @param {Boolean} [options.useAdditionalWeekYearTokens=false] - if true, allows usage of the week-numbering year tokens `YY` and `YYYY`;
+ *   see: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
+ * @param {Boolean} [options.useAdditionalDayOfYearTokens=false] - if true, allows usage of the day of year tokens `D` and `DD`;
+ *   see: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
+ * @returns {Date} the parsed date
+ * @throws {TypeError} 3 arguments required
+ * @throws {RangeError} `options.weekStartsOn` must be between 0 and 6
+ * @throws {RangeError} `options.firstWeekContainsDate` must be between 1 and 7
+ * @throws {RangeError} `options.locale` must contain `match` property
+ * @throws {RangeError} use `yyyy` instead of `YYYY` for formatting years using [format provided] to the input [input provided]; see: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
+ * @throws {RangeError} use `yy` instead of `YY` for formatting years using [format provided] to the input [input provided]; see: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
+ * @throws {RangeError} use `d` instead of `D` for formatting days of the month using [format provided] to the input [input provided]; see: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
+ * @throws {RangeError} use `dd` instead of `DD` for formatting days of the month using [format provided] to the input [input provided]; see: https://github.com/date-fns/date-fns/blob/master/docs/unicodeTokens.md
+ * @throws {RangeError} format string contains an unescaped latin alphabet character
+ *
+ * @example
+ * // Parse 11 February 2014 from middle-endian format:
+ * var result = parse('02/11/2014', 'MM/dd/yyyy', new Date())
+ * //=> Tue Feb 11 2014 00:00:00
+ *
+ * @example
+ * // Parse 28th of February in Esperanto locale in the context of 2010 year:
+ * import eo from 'date-fns/locale/eo'
+ * var result = parse('28-a de februaro', "do 'de' MMMM", new Date(2010, 0, 1), {
+ *   locale: eo
+ * })
+ * //=> Sun Feb 28 2010 00:00:00
+ */
+function parse(dirtyDateString, dirtyFormatString, dirtyReferenceDate, options) {
+  var _ref, _options$locale, _ref2, _ref3, _ref4, _options$firstWeekCon, _options$locale2, _options$locale2$opti, _defaultOptions$local, _defaultOptions$local2, _ref5, _ref6, _ref7, _options$weekStartsOn, _options$locale3, _options$locale3$opti, _defaultOptions$local3, _defaultOptions$local4;
+  (0, _index9.default)(3, arguments);
+  var dateString = String(dirtyDateString);
+  var formatString = String(dirtyFormatString);
+  var defaultOptions = (0, _index11.getDefaultOptions)();
+  var locale = (_ref = (_options$locale = options === null || options === void 0 ? void 0 : options.locale) !== null && _options$locale !== void 0 ? _options$locale : defaultOptions.locale) !== null && _ref !== void 0 ? _ref : _index.default;
+  if (!locale.match) {
+    throw new RangeError('locale must contain match property');
+  }
+  var firstWeekContainsDate = (0, _index8.default)((_ref2 = (_ref3 = (_ref4 = (_options$firstWeekCon = options === null || options === void 0 ? void 0 : options.firstWeekContainsDate) !== null && _options$firstWeekCon !== void 0 ? _options$firstWeekCon : options === null || options === void 0 ? void 0 : (_options$locale2 = options.locale) === null || _options$locale2 === void 0 ? void 0 : (_options$locale2$opti = _options$locale2.options) === null || _options$locale2$opti === void 0 ? void 0 : _options$locale2$opti.firstWeekContainsDate) !== null && _ref4 !== void 0 ? _ref4 : defaultOptions.firstWeekContainsDate) !== null && _ref3 !== void 0 ? _ref3 : (_defaultOptions$local = defaultOptions.locale) === null || _defaultOptions$local === void 0 ? void 0 : (_defaultOptions$local2 = _defaultOptions$local.options) === null || _defaultOptions$local2 === void 0 ? void 0 : _defaultOptions$local2.firstWeekContainsDate) !== null && _ref2 !== void 0 ? _ref2 : 1);
+
+  // Test if weekStartsOn is between 1 and 7 _and_ is not NaN
+  if (!(firstWeekContainsDate >= 1 && firstWeekContainsDate <= 7)) {
+    throw new RangeError('firstWeekContainsDate must be between 1 and 7 inclusively');
+  }
+  var weekStartsOn = (0, _index8.default)((_ref5 = (_ref6 = (_ref7 = (_options$weekStartsOn = options === null || options === void 0 ? void 0 : options.weekStartsOn) !== null && _options$weekStartsOn !== void 0 ? _options$weekStartsOn : options === null || options === void 0 ? void 0 : (_options$locale3 = options.locale) === null || _options$locale3 === void 0 ? void 0 : (_options$locale3$opti = _options$locale3.options) === null || _options$locale3$opti === void 0 ? void 0 : _options$locale3$opti.weekStartsOn) !== null && _ref7 !== void 0 ? _ref7 : defaultOptions.weekStartsOn) !== null && _ref6 !== void 0 ? _ref6 : (_defaultOptions$local3 = defaultOptions.locale) === null || _defaultOptions$local3 === void 0 ? void 0 : (_defaultOptions$local4 = _defaultOptions$local3.options) === null || _defaultOptions$local4 === void 0 ? void 0 : _defaultOptions$local4.weekStartsOn) !== null && _ref5 !== void 0 ? _ref5 : 0);
+
+  // Test if weekStartsOn is between 0 and 6 _and_ is not NaN
+  if (!(weekStartsOn >= 0 && weekStartsOn <= 6)) {
+    throw new RangeError('weekStartsOn must be between 0 and 6 inclusively');
+  }
+  if (formatString === '') {
+    if (dateString === '') {
+      return (0, _index3.default)(dirtyReferenceDate);
+    } else {
+      return new Date(NaN);
+    }
+  }
+  var subFnOptions = {
+    firstWeekContainsDate: firstWeekContainsDate,
+    weekStartsOn: weekStartsOn,
+    locale: locale
+  };
+
+  // If timezone isn't specified, it will be set to the system timezone
+  var setters = [new _Setter.DateToSystemTimezoneSetter()];
+  var tokens = formatString.match(longFormattingTokensRegExp).map(function (substring) {
+    var firstCharacter = substring[0];
+    if (firstCharacter in _index5.default) {
+      var longFormatter = _index5.default[firstCharacter];
+      return longFormatter(substring, locale.formatLong);
+    }
+    return substring;
+  }).join('').match(formattingTokensRegExp);
+  var usedTokens = [];
+  var _iterator = (0, _createForOfIteratorHelper2.default)(tokens),
+    _step;
+  try {
+    var _loop = function _loop() {
+      var token = _step.value;
+      if (!(options !== null && options !== void 0 && options.useAdditionalWeekYearTokens) && (0, _index7.isProtectedWeekYearToken)(token)) {
+        (0, _index7.throwProtectedError)(token, formatString, dirtyDateString);
+      }
+      if (!(options !== null && options !== void 0 && options.useAdditionalDayOfYearTokens) && (0, _index7.isProtectedDayOfYearToken)(token)) {
+        (0, _index7.throwProtectedError)(token, formatString, dirtyDateString);
+      }
+      var firstCharacter = token[0];
+      var parser = _index10.parsers[firstCharacter];
+      if (parser) {
+        var incompatibleTokens = parser.incompatibleTokens;
+        if (Array.isArray(incompatibleTokens)) {
+          var incompatibleToken = usedTokens.find(function (usedToken) {
+            return incompatibleTokens.includes(usedToken.token) || usedToken.token === firstCharacter;
+          });
+          if (incompatibleToken) {
+            throw new RangeError("The format string mustn't contain `".concat(incompatibleToken.fullToken, "` and `").concat(token, "` at the same time"));
+          }
+        } else if (parser.incompatibleTokens === '*' && usedTokens.length > 0) {
+          throw new RangeError("The format string mustn't contain `".concat(token, "` and any other token at the same time"));
+        }
+        usedTokens.push({
+          token: firstCharacter,
+          fullToken: token
+        });
+        var parseResult = parser.run(dateString, token, locale.match, subFnOptions);
+        if (!parseResult) {
+          return {
+            v: new Date(NaN)
+          };
+        }
+        setters.push(parseResult.setter);
+        dateString = parseResult.rest;
+      } else {
+        if (firstCharacter.match(unescapedLatinCharacterRegExp)) {
+          throw new RangeError('Format string contains an unescaped latin alphabet character `' + firstCharacter + '`');
+        }
+
+        // Replace two single quote characters with one single quote character
+        if (token === "''") {
+          token = "'";
+        } else if (firstCharacter === "'") {
+          token = cleanEscapedString(token);
+        }
+
+        // Cut token from string, or, if string doesn't match the token, return Invalid Date
+        if (dateString.indexOf(token) === 0) {
+          dateString = dateString.slice(token.length);
+        } else {
+          return {
+            v: new Date(NaN)
+          };
+        }
+      }
+    };
+    for (_iterator.s(); !(_step = _iterator.n()).done;) {
+      var _ret = _loop();
+      if ((0, _typeof2.default)(_ret) === "object") return _ret.v;
+    }
+
+    // Check if the remaining input contains something other than whitespace
+  } catch (err) {
+    _iterator.e(err);
+  } finally {
+    _iterator.f();
+  }
+  if (dateString.length > 0 && notWhitespaceRegExp.test(dateString)) {
+    return new Date(NaN);
+  }
+  var uniquePrioritySetters = setters.map(function (setter) {
+    return setter.priority;
+  }).sort(function (a, b) {
+    return b - a;
+  }).filter(function (priority, index, array) {
+    return array.indexOf(priority) === index;
+  }).map(function (priority) {
+    return setters.filter(function (setter) {
+      return setter.priority === priority;
+    }).sort(function (a, b) {
+      return b.subPriority - a.subPriority;
+    });
+  }).map(function (setterArray) {
+    return setterArray[0];
+  });
+  var date = (0, _index3.default)(dirtyReferenceDate);
+  if (isNaN(date.getTime())) {
+    return new Date(NaN);
+  }
+
+  // Convert the date in system timezone to the same date in UTC+00:00 timezone.
+  var utcDate = (0, _index2.default)(date, (0, _index6.default)(date));
+  var flags = {};
+  var _iterator2 = (0, _createForOfIteratorHelper2.default)(uniquePrioritySetters),
+    _step2;
+  try {
+    for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
+      var setter = _step2.value;
+      if (!setter.validate(utcDate, subFnOptions)) {
+        return new Date(NaN);
+      }
+      var result = setter.set(utcDate, flags, subFnOptions);
+      // Result is tuple (date, flags)
+      if (Array.isArray(result)) {
+        utcDate = result[0];
+        (0, _index4.default)(flags, result[1]);
+        // Result is date
+      } else {
+        utcDate = result;
+      }
+    }
+  } catch (err) {
+    _iterator2.e(err);
+  } finally {
+    _iterator2.f();
+  }
+  return utcDate;
+}
+function cleanEscapedString(input) {
+  return input.match(escapedStringRegExp)[1].replace(doubleQuoteRegExp, "'");
+}
+module.exports = exports.default;

backend/node_modules/date-fns/parse/index.js.flow

@@ -0,0 +1,63 @@
+// @flow
+// This file is generated automatically by `scripts/build/typings.js`. Please, don't change it.
+
+export type Interval = {
+  start: Date | number,
+  end: Date | number,
+}
+
+export type Locale = {
+  code?: string,
+  formatDistance?: (...args: Array<any>) => any,
+  formatRelative?: (...args: Array<any>) => any,
+  localize?: {
+    ordinalNumber: (...args: Array<any>) => any,
+    era: (...args: Array<any>) => any,
+    quarter: (...args: Array<any>) => any,
+    month: (...args: Array<any>) => any,
+    day: (...args: Array<any>) => any,
+    dayPeriod: (...args: Array<any>) => any,
+  },
+  formatLong?: {
+    date: (...args: Array<any>) => any,
+    time: (...args: Array<any>) => any,
+    dateTime: (...args: Array<any>) => any,
+  },
+  match?: {
+    ordinalNumber: (...args: Array<any>) => any,
+    era: (...args: Array<any>) => any,
+    quarter: (...args: Array<any>) => any,
+    month: (...args: Array<any>) => any,
+    day: (...args: Array<any>) => any,
+    dayPeriod: (...args: Array<any>) => any,
+  },
+  options?: {
+    weekStartsOn?: 0 | 1 | 2 | 3 | 4 | 5 | 6,
+    firstWeekContainsDate?: 1 | 2 | 3 | 4 | 5 | 6 | 7,
+  },
+}
+
+export type Duration = {
+  years?: number,
+  months?: number,
+  weeks?: number,
+  days?: number,
+  hours?: number,
+  minutes?: number,
+  seconds?: number,
+}
+
+export type Day = 0 | 1 | 2 | 3 | 4 | 5 | 6
+
+declare module.exports: (
+  dateString: string,
+  formatString: string,
+  referenceDate: Date | number,
+  options?: {
+    locale?: Locale,
+    weekStartsOn?: 0 | 1 | 2 | 3 | 4 | 5 | 6,
+    firstWeekContainsDate?: 1 | 2 | 3 | 4 | 5 | 6 | 7,
+    useAdditionalWeekYearTokens?: boolean,
+    useAdditionalDayOfYearTokens?: boolean,
+  }
+) => Date

backend/node_modules/date-fns/parse/package.json

@@ -0,0 +1,5 @@
+{
+  "sideEffects": false,
+  "module": "../esm/parse/index.js",
+  "typings": "../typings.d.ts"
+}