From eeed004fe246dd7b543b8c48f26070a43dc2d842 Mon Sep 17 00:00:00 2001
From: Dave Richer <dave@imexsystems.ca>
Date: Wed, 18 Sep 2024 15:00:32 -0400
Subject: [PATCH] IO-2932-Scheduling-Lag-on-AIO-HotFix - Remove timezone from
 DayJS for scheduling by adjusting the localizer

Signed-off-by: Dave Richer <dave@imexsystems.ca>
---
 client/package-lock.json                      |   1 +
 client/package.json                           |   1 +
 .../schedule-calendar-wrapper/localizer.js    | 505 ++++++++++++++++++
 .../scheduler-calendar-wrapper.component.jsx  |   5 +-
 4 files changed, 510 insertions(+), 2 deletions(-)
 create mode 100644 client/src/components/schedule-calendar-wrapper/localizer.js

diff --git a/client/package-lock.json b/client/package-lock.json
index f794877d6..04b6d5678 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -7,6 +7,7 @@
     "": {
       "name": "bodyshop",
       "version": "0.2.1",
+      "hasInstallScript": true,
       "dependencies": {
         "@ant-design/pro-layout": "^7.19.12",
         "@apollo/client": "^3.11.4",
diff --git a/client/package.json b/client/package.json
index e89aabfb0..3561564f6 100644
--- a/client/package.json
+++ b/client/package.json
@@ -84,6 +84,7 @@
     "web-vitals": "^3.5.2"
   },
   "scripts": {
+    "postinstall": "echo 'when updating react-big-calendar, remember to check to localizer in the calendar wrapper'",
     "analyze": "source-map-explorer 'build/static/js/*.js'",
     "start": "vite",
     "build": "dotenvx run --env-file=.env.development.imex -- vite build",
diff --git a/client/src/components/schedule-calendar-wrapper/localizer.js b/client/src/components/schedule-calendar-wrapper/localizer.js
new file mode 100644
index 000000000..e91016416
--- /dev/null
+++ b/client/src/components/schedule-calendar-wrapper/localizer.js
@@ -0,0 +1,505 @@
+import isBetween from "dayjs/plugin/isBetween";
+import isSameOrAfter from "dayjs/plugin/isSameOrAfter";
+import isSameOrBefore from "dayjs/plugin/isSameOrBefore";
+import localeData from "dayjs/plugin/localeData";
+import localizedFormat from "dayjs/plugin/localizedFormat";
+import minMax from "dayjs/plugin/minMax";
+import utc from "dayjs/plugin/utc";
+import { DateLocalizer } from "react-big-calendar";
+
+function arrayWithHoles(arr) {
+  if (Array.isArray(arr)) return arr;
+}
+
+function iterableToArrayLimit(arr, i) {
+  if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return;
+  var _arr = [];
+  var _n = true;
+  var _d = false;
+  var _e = undefined;
+  try {
+    for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
+      _arr.push(_s.value);
+      if (i && _arr.length === i) break;
+    }
+  } catch (err) {
+    _d = true;
+    _e = err;
+  } finally {
+    try {
+      if (!_n && _i["return"] != null) _i["return"]();
+    } finally {
+      if (_d) throw _e;
+    }
+  }
+  return _arr;
+}
+
+function unsupportedIterableToArray(o, minLen) {
+  if (!o) return;
+  if (typeof o === "string") return arrayLikeToArray(o, minLen);
+  var n = Object.prototype.toString.call(o).slice(8, -1);
+  if (n === "Object" && o.constructor) n = o.constructor.name;
+  if (n === "Map" || n === "Set") return Array.from(o);
+  if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return arrayLikeToArray(o, minLen);
+}
+
+function arrayLikeToArray(arr, len) {
+  if (len == null || len > arr.length) len = arr.length;
+  for (var i = 0, arr2 = new Array(len); i < len; i++) {
+    arr2[i] = arr[i];
+  }
+  return arr2;
+}
+
+function nonIterableRest() {
+  throw new TypeError(
+    "Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."
+  );
+}
+
+function _slicedToArray(arr, i) {
+  return arrayWithHoles(arr) || iterableToArrayLimit(arr, i) || unsupportedIterableToArray(arr, i) || nonIterableRest();
+}
+
+function fixUnit(unit) {
+  var datePart = unit ? unit.toLowerCase() : unit;
+  if (datePart === "FullYear") {
+    datePart = "year";
+  } else if (!datePart) {
+    datePart = undefined;
+  }
+  return datePart;
+}
+
+var timeRangeFormat = function timeRangeFormat(_ref3, culture, local) {
+  var start = _ref3.start,
+    end = _ref3.end;
+  return local.format(start, "LT", culture) + " – " + local.format(end, "LT", culture);
+};
+var timeRangeStartFormat = function timeRangeStartFormat(_ref4, culture, local) {
+  var start = _ref4.start;
+  return local.format(start, "LT", culture) + " – ";
+};
+var timeRangeEndFormat = function timeRangeEndFormat(_ref5, culture, local) {
+  var end = _ref5.end;
+  return " – " + local.format(end, "LT", culture);
+};
+var weekRangeFormat = function weekRangeFormat(_ref, culture, local) {
+  var start = _ref.start,
+    end = _ref.end;
+  return (
+    local.format(start, "MMMM DD", culture) +
+    " – " +
+    // updated to use this localizer 'eq()' method
+    local.format(end, local.eq(start, end, "month") ? "DD" : "MMMM DD", culture)
+  );
+};
+var dateRangeFormat = function dateRangeFormat(_ref2, culture, local) {
+  var start = _ref2.start,
+    end = _ref2.end;
+  return local.format(start, "L", culture) + " – " + local.format(end, "L", culture);
+};
+
+var formats = {
+  dateFormat: "DD",
+  dayFormat: "DD ddd",
+  weekdayFormat: "ddd",
+  selectRangeFormat: timeRangeFormat,
+  eventTimeRangeFormat: timeRangeFormat,
+  eventTimeRangeStartFormat: timeRangeStartFormat,
+  eventTimeRangeEndFormat: timeRangeEndFormat,
+  timeGutterFormat: "LT",
+  monthHeaderFormat: "MMMM YYYY",
+  dayHeaderFormat: "dddd MMM DD",
+  dayRangeHeaderFormat: weekRangeFormat,
+  agendaHeaderFormat: dateRangeFormat,
+  agendaDateFormat: "ddd MMM DD",
+  agendaTimeFormat: "LT",
+  agendaTimeRangeFormat: timeRangeFormat
+};
+
+const localizer = (dayjsLib) => {
+  // load dayjs plugins
+  dayjsLib.extend(isBetween);
+  dayjsLib.extend(isSameOrAfter);
+  dayjsLib.extend(isSameOrBefore);
+  dayjsLib.extend(localeData);
+  dayjsLib.extend(localizedFormat);
+  dayjsLib.extend(minMax);
+  dayjsLib.extend(utc);
+  var locale = function locale(dj, c) {
+    return c ? dj.locale(c) : dj;
+  };
+
+  // if the timezone plugin is loaded,
+  // then use the timezone aware version
+
+  //TODO This was the issue entirely...
+  //  var dayjs = dayjsLib.tz ? dayjsLib.tz : dayjsLib;
+  var dayjs = dayjsLib;
+
+  function getTimezoneOffset(date) {
+    // ensures this gets cast to timezone
+    return dayjs(date).toDate().getTimezoneOffset();
+  }
+
+  function getDstOffset(start, end) {
+    var _st$tz$$x$$timezone;
+    // convert to dayjs, in case
+    var st = dayjs(start);
+    var ed = dayjs(end);
+    // if not using the dayjs timezone plugin
+    if (!dayjs.tz) {
+      return st.toDate().getTimezoneOffset() - ed.toDate().getTimezoneOffset();
+    }
+    /**
+     * If a default timezone has been applied, then
+     * use this to get the proper timezone offset, otherwise default
+     * the timezone to the browser local
+     */
+    var tzName =
+      (_st$tz$$x$$timezone = st.tz().$x.$timezone) !== null && _st$tz$$x$$timezone !== void 0
+        ? _st$tz$$x$$timezone
+        : dayjsLib.tz.guess();
+    // invert offsets to be inline with moment.js
+    var startOffset = -dayjs.tz(+st, tzName).utcOffset();
+    var endOffset = -dayjs.tz(+ed, tzName).utcOffset();
+    return startOffset - endOffset;
+  }
+
+  function getDayStartDstOffset(start) {
+    var dayStart = dayjs(start).startOf("day");
+    return getDstOffset(dayStart, start);
+  }
+
+  /*** BEGIN localized date arithmetic methods with dayjs ***/
+  function defineComparators(a, b, unit) {
+    var datePart = fixUnit(unit);
+    var dtA = datePart ? dayjs(a).startOf(datePart) : dayjs(a);
+    var dtB = datePart ? dayjs(b).startOf(datePart) : dayjs(b);
+    return [dtA, dtB, datePart];
+  }
+
+  function startOf() {
+    var date = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+    var unit = arguments.length > 1 ? arguments[1] : undefined;
+    var datePart = fixUnit(unit);
+    if (datePart) {
+      return dayjs(date).startOf(datePart).toDate();
+    }
+    return dayjs(date).toDate();
+  }
+
+  function endOf() {
+    var date = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+    var unit = arguments.length > 1 ? arguments[1] : undefined;
+    var datePart = fixUnit(unit);
+    if (datePart) {
+      return dayjs(date).endOf(datePart).toDate();
+    }
+    return dayjs(date).toDate();
+  }
+
+  // dayjs comparison operations *always* convert both sides to dayjs objects
+  // prior to running the comparisons
+  function eq(a, b, unit) {
+    var _defineComparators = defineComparators(a, b, unit),
+      _defineComparators2 = _slicedToArray(_defineComparators, 3),
+      dtA = _defineComparators2[0],
+      dtB = _defineComparators2[1],
+      datePart = _defineComparators2[2];
+    return dtA.isSame(dtB, datePart);
+  }
+
+  function neq(a, b, unit) {
+    return !eq(a, b, unit);
+  }
+
+  function gt(a, b, unit) {
+    var _defineComparators3 = defineComparators(a, b, unit),
+      _defineComparators4 = _slicedToArray(_defineComparators3, 3),
+      dtA = _defineComparators4[0],
+      dtB = _defineComparators4[1],
+      datePart = _defineComparators4[2];
+    return dtA.isAfter(dtB, datePart);
+  }
+
+  function lt(a, b, unit) {
+    var _defineComparators5 = defineComparators(a, b, unit),
+      _defineComparators6 = _slicedToArray(_defineComparators5, 3),
+      dtA = _defineComparators6[0],
+      dtB = _defineComparators6[1],
+      datePart = _defineComparators6[2];
+    return dtA.isBefore(dtB, datePart);
+  }
+
+  function gte(a, b, unit) {
+    var _defineComparators7 = defineComparators(a, b, unit),
+      _defineComparators8 = _slicedToArray(_defineComparators7, 3),
+      dtA = _defineComparators8[0],
+      dtB = _defineComparators8[1],
+      datePart = _defineComparators8[2];
+    return dtA.isSameOrBefore(dtB, datePart);
+  }
+
+  function lte(a, b, unit) {
+    var _defineComparators9 = defineComparators(a, b, unit),
+      _defineComparators10 = _slicedToArray(_defineComparators9, 3),
+      dtA = _defineComparators10[0],
+      dtB = _defineComparators10[1],
+      datePart = _defineComparators10[2];
+    return dtA.isSameOrBefore(dtB, datePart);
+  }
+
+  function inRange(day, min, max) {
+    var unit = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : "day";
+    var datePart = fixUnit(unit);
+    var djDay = dayjs(day);
+    var djMin = dayjs(min);
+    var djMax = dayjs(max);
+    return djDay.isBetween(djMin, djMax, datePart, "[]");
+  }
+
+  function min(dateA, dateB) {
+    var dtA = dayjs(dateA);
+    var dtB = dayjs(dateB);
+    var minDt = dayjsLib.min(dtA, dtB);
+    return minDt.toDate();
+  }
+
+  function max(dateA, dateB) {
+    var dtA = dayjs(dateA);
+    var dtB = dayjs(dateB);
+    var maxDt = dayjsLib.max(dtA, dtB);
+    return maxDt.toDate();
+  }
+
+  function merge(date, time) {
+    if (!date && !time) return null;
+    var tm = dayjs(time).format("HH:mm:ss");
+    var dt = dayjs(date).startOf("day").format("MM/DD/YYYY");
+    // We do it this way to avoid issues when timezone switching
+    return dayjsLib("".concat(dt, " ").concat(tm), "MM/DD/YYYY HH:mm:ss").toDate();
+  }
+
+  function add(date, adder, unit) {
+    var datePart = fixUnit(unit);
+    return dayjs(date).add(adder, datePart).toDate();
+  }
+
+  function range(start, end) {
+    var unit = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : "day";
+    var datePart = fixUnit(unit);
+    // because the add method will put these in tz, we have to start that way
+    var current = dayjs(start).toDate();
+    var days = [];
+    while (lte(current, end)) {
+      days.push(current);
+      current = add(current, 1, datePart);
+    }
+    return days;
+  }
+
+  function ceil(date, unit) {
+    var datePart = fixUnit(unit);
+    var floor = startOf(date, datePart);
+    return eq(floor, date) ? floor : add(floor, 1, datePart);
+  }
+
+  function diff(a, b) {
+    var unit = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : "day";
+    var datePart = fixUnit(unit);
+    // don't use 'defineComparators' here, as we don't want to mutate the values
+    var dtA = dayjs(a);
+    var dtB = dayjs(b);
+    return dtB.diff(dtA, datePart);
+  }
+
+  function minutes(date) {
+    var dt = dayjs(date);
+    return dt.minutes();
+  }
+
+  function firstOfWeek(culture) {
+    var data = culture ? dayjsLib.localeData(culture) : dayjsLib.localeData();
+    return data ? data.firstDayOfWeek() : 0;
+  }
+
+  function firstVisibleDay(date) {
+    return dayjs(date).startOf("month").startOf("week").toDate();
+  }
+
+  function lastVisibleDay(date) {
+    return dayjs(date).endOf("month").endOf("week").toDate();
+  }
+
+  function visibleDays(date) {
+    var current = firstVisibleDay(date);
+    var last = lastVisibleDay(date);
+    var days = [];
+    while (lte(current, last)) {
+      days.push(current);
+      current = add(current, 1, "d");
+    }
+    return days;
+  }
+
+  /*** END localized date arithmetic methods with dayjs ***/
+
+  /**
+   * Moved from TimeSlots.js, this method overrides the method of the same name
+   * in the localizer.js, using dayjs to construct the js Date
+   * @param {Date} dt - date to start with
+   * @param {Number} minutesFromMidnight
+   * @param {Number} offset
+   * @returns {Date}
+   */
+  function getSlotDate(dt, minutesFromMidnight, offset) {
+    return dayjs(dt)
+      .startOf("day")
+      .minute(minutesFromMidnight + offset)
+      .toDate();
+  }
+
+  // dayjs will automatically handle DST differences in it's calculations
+  function getTotalMin(start, end) {
+    return diff(start, end, "minutes");
+  }
+
+  function getMinutesFromMidnight(start) {
+    var dayStart = dayjs(start).startOf("day");
+    var day = dayjs(start);
+    return day.diff(dayStart, "minutes") + getDayStartDstOffset(start);
+  }
+
+  // These two are used by DateSlotMetrics
+  function continuesPrior(start, first) {
+    var djStart = dayjs(start);
+    var djFirst = dayjs(first);
+    return djStart.isBefore(djFirst, "day");
+  }
+
+  function continuesAfter(start, end, last) {
+    var djEnd = dayjs(end);
+    var djLast = dayjs(last);
+    return djEnd.isSameOrAfter(djLast, "minutes");
+  }
+
+  function daySpan(start, end) {
+    var startDay = dayjs(start);
+    var endDay = dayjs(end);
+    return endDay.diff(startDay, "day");
+  }
+
+  // These two are used by eventLevels
+  function sortEvents(_ref6) {
+    var _ref6$evtA = _ref6.evtA,
+      aStart = _ref6$evtA.start,
+      aEnd = _ref6$evtA.end,
+      aAllDay = _ref6$evtA.allDay,
+      _ref6$evtB = _ref6.evtB,
+      bStart = _ref6$evtB.start,
+      bEnd = _ref6$evtB.end,
+      bAllDay = _ref6$evtB.allDay;
+    var startSort = +startOf(aStart, "day") - +startOf(bStart, "day");
+    var durA = daySpan(aStart, aEnd);
+    var durB = daySpan(bStart, bEnd);
+    return (
+      startSort ||
+      // sort by start Day first
+      durB - durA ||
+      // events spanning multiple days go first
+      !!bAllDay - !!aAllDay ||
+      // then allDay single day events
+      +aStart - +bStart ||
+      // then sort by start time *don't need dayjs conversion here
+      +aEnd - +bEnd // then sort by end time *don't need dayjs conversion here either
+    );
+  }
+
+  function inEventRange(_ref7) {
+    var _ref7$event = _ref7.event,
+      start = _ref7$event.start,
+      end = _ref7$event.end,
+      _ref7$range = _ref7.range,
+      rangeStart = _ref7$range.start,
+      rangeEnd = _ref7$range.end;
+    var startOfDay = dayjs(start).startOf("day");
+    var eEnd = dayjs(end);
+    var rStart = dayjs(rangeStart);
+    var rEnd = dayjs(rangeEnd);
+    var startsBeforeEnd = startOfDay.isSameOrBefore(rEnd, "day");
+    // when the event is zero duration we need to handle a bit differently
+    var sameMin = !startOfDay.isSame(eEnd, "minutes");
+    var endsAfterStart = sameMin ? eEnd.isAfter(rStart, "minutes") : eEnd.isSameOrAfter(rStart, "minutes");
+    return startsBeforeEnd && endsAfterStart;
+  }
+
+  function isSameDate(date1, date2) {
+    var dt = dayjs(date1);
+    var dt2 = dayjs(date2);
+    return dt.isSame(dt2, "day");
+  }
+
+  /**
+   * This method, called once in the localizer constructor, is used by eventLevels
+   * 'eventSegments()' to assist in determining the 'span' of the event in the display,
+   * specifically when using a timezone that is greater than the browser native timezone.
+   * @returns number
+   */
+  function browserTZOffset() {
+    /**
+     * Date.prototype.getTimezoneOffset horrifically flips the positive/negative from
+     * what you see in it's string, so we have to jump through some hoops to get a value
+     * we can actually compare.
+     */
+    var dt = new Date();
+    var neg = /-/.test(dt.toString()) ? "-" : "";
+    var dtOffset = dt.getTimezoneOffset();
+    var comparator = Number("".concat(neg).concat(Math.abs(dtOffset)));
+    // dayjs correctly provides positive/negative offset, as expected
+    var mtOffset = dayjs().utcOffset();
+    return mtOffset > comparator ? 1 : 0;
+  }
+
+  return new DateLocalizer({
+    formats: formats,
+    firstOfWeek: firstOfWeek,
+    firstVisibleDay: firstVisibleDay,
+    lastVisibleDay: lastVisibleDay,
+    visibleDays: visibleDays,
+    format: function format(value, _format, culture) {
+      return locale(dayjs(value), culture).format(_format);
+    },
+    lt: lt,
+    lte: lte,
+    gt: gt,
+    gte: gte,
+    eq: eq,
+    neq: neq,
+    merge: merge,
+    inRange: inRange,
+    startOf: startOf,
+    endOf: endOf,
+    range: range,
+    add: add,
+    diff: diff,
+    ceil: ceil,
+    min: min,
+    max: max,
+    minutes: minutes,
+    getSlotDate: getSlotDate,
+    getTimezoneOffset: getTimezoneOffset,
+    getDstOffset: getDstOffset,
+    getTotalMin: getTotalMin,
+    getMinutesFromMidnight: getMinutesFromMidnight,
+    continuesPrior: continuesPrior,
+    continuesAfter: continuesAfter,
+    sortEvents: sortEvents,
+    inEventRange: inEventRange,
+    isSameDate: isSameDate,
+    browserTZOffset: browserTZOffset
+  });
+};
+export default localizer;
diff --git a/client/src/components/schedule-calendar-wrapper/scheduler-calendar-wrapper.component.jsx b/client/src/components/schedule-calendar-wrapper/scheduler-calendar-wrapper.component.jsx
index fc79cd4a9..fb866d89d 100644
--- a/client/src/components/schedule-calendar-wrapper/scheduler-calendar-wrapper.component.jsx
+++ b/client/src/components/schedule-calendar-wrapper/scheduler-calendar-wrapper.component.jsx
@@ -1,7 +1,7 @@
 import dayjs from "../../utils/day";
 import queryString from "query-string";
 import React from "react";
-import { Calendar, dayjsLocalizer } from "react-big-calendar";
+import { Calendar } from "react-big-calendar";
 import { connect } from "react-redux";
 import { Link, useLocation, useNavigate } from "react-router-dom";
 import { createStructuredSelector } from "reselect";
@@ -14,12 +14,13 @@ import { selectProblemJobs } from "../../redux/application/application.selectors
 import { Alert, Collapse, Space } from "antd";
 import { Trans, useTranslation } from "react-i18next";
 import InstanceRenderManager from "../../utils/instanceRenderMgr";
+import local from "./localizer";
 
 const mapStateToProps = createStructuredSelector({
   bodyshop: selectBodyshop,
   problemJobs: selectProblemJobs
 });
-const localizer = dayjsLocalizer(dayjs);
+const localizer = local(dayjs);
 
 export function ScheduleCalendarWrapperComponent({
   bodyshop,