forked from MapComplete/MapComplete
536 lines
17 KiB
TypeScript
536 lines
17 KiB
TypeScript
import {Utils} from "../../Utils";
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export interface OpeningHour {
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weekday: number, // 0 is monday, 1 is tuesday, ...
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startHour: number,
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startMinutes: number,
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endHour: number,
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endMinutes: number
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}
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/**
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* Various utilities manipulating opening hours
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*/
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export class OH {
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private static readonly days = ["Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"]
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private static readonly daysIndexed = {
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mo: 0,
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tu: 1,
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we: 2,
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th: 3,
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fr: 4,
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sa: 5,
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su: 6
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}
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public static hhmm(h: number, m: number): string {
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if (h == 24) {
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return "00:00";
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}
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return Utils.TwoDigits(h) + ":" + Utils.TwoDigits(m);
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}
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public static ToString(ohs: OpeningHour[]) {
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if (ohs.length == 0) {
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return "";
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}
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const partsPerWeekday: string [][] = [[], [], [], [], [], [], []];
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for (const oh of ohs) {
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partsPerWeekday[oh.weekday].push(OH.hhmm(oh.startHour, oh.startMinutes) + "-" + OH.hhmm(oh.endHour, oh.endMinutes));
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}
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const stringPerWeekday = partsPerWeekday.map(parts => parts.sort().join(", "));
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const rules = [];
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let rangeStart = 0;
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let rangeEnd = 0;
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function pushRule() {
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const rule = stringPerWeekday[rangeStart];
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if (rule === "") {
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return;
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}
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if (rangeStart == (rangeEnd - 1)) {
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rules.push(
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`${OH.days[rangeStart]} ${rule}`
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);
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} else {
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rules.push(
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`${OH.days[rangeStart]}-${OH.days[rangeEnd - 1]} ${rule}`
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);
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}
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}
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for (; rangeEnd < 7; rangeEnd++) {
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if (stringPerWeekday[rangeStart] != stringPerWeekday[rangeEnd]) {
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pushRule();
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rangeStart = rangeEnd
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}
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}
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pushRule();
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const oh = rules.join("; ")
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if (oh === "Mo-Su 00:00-00:00") {
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return "24/7"
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}
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return oh;
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}
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/**
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* Merge duplicate opening-hour element in place.
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* Returns true if something changed
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* @param ohs
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* @constructor
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*/
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public static MergeTimes(ohs: OpeningHour[]): OpeningHour[] {
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const queue = ohs.map(oh => {
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if (oh.endHour === 0 && oh.endMinutes === 0) {
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const newOh = {
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...oh
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}
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newOh.endHour = 24
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return newOh
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}
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return oh;
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});
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const newList = [];
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while (queue.length > 0) {
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let maybeAdd = queue.pop();
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let doAddEntry = true;
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if (maybeAdd.weekday == undefined) {
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doAddEntry = false;
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}
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for (let i = newList.length - 1; i >= 0 && doAddEntry; i--) {
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let guard = newList[i];
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if (maybeAdd.weekday != guard.weekday) {
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// Not the same day
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continue
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}
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if (OH.startTimeLiesInRange(maybeAdd, guard) && OH.endTimeLiesInRange(maybeAdd, guard)) {
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// Guard fully covers 'maybeAdd': we can safely ignore maybeAdd
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doAddEntry = false;
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break;
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}
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if (OH.startTimeLiesInRange(guard, maybeAdd) && OH.endTimeLiesInRange(guard, maybeAdd)) {
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// 'maybeAdd' fully covers Guard - the guard is killed
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newList.splice(i, 1);
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break;
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}
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if (OH.startTimeLiesInRange(maybeAdd, guard) || OH.endTimeLiesInRange(maybeAdd, guard)
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|| OH.startTimeLiesInRange(guard, maybeAdd) || OH.endTimeLiesInRange(guard, maybeAdd)) {
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// At this point, the maybeAdd overlaps the guard: we should extend the guard and retest it
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newList.splice(i, 1);
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let startHour = guard.startHour;
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let startMinutes = guard.startMinutes;
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if (OH.startTime(maybeAdd) < OH.startTime(guard)) {
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startHour = maybeAdd.startHour;
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startMinutes = maybeAdd.startMinutes;
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}
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let endHour = guard.endHour;
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let endMinutes = guard.endMinutes;
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if (OH.endTime(maybeAdd) > OH.endTime(guard)) {
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endHour = maybeAdd.endHour;
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endMinutes = maybeAdd.endMinutes;
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}
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queue.push({
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startHour: startHour,
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startMinutes: startMinutes,
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endHour: endHour,
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endMinutes: endMinutes,
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weekday: guard.weekday
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});
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doAddEntry = false;
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break;
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}
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}
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if (doAddEntry) {
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newList.push(maybeAdd);
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}
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}
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// New list can only differ from the old list by merging entries
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// This means that the list is changed only if the lengths are different.
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// If the lengths are the same, we might just as well return the old list and be a bit more stable
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if (newList.length !== ohs.length) {
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return newList;
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} else {
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return ohs;
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}
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}
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/**
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* Gives the number of hours since the start of day.
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* E.g.
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* startTime({startHour: 9, startMinuts: 15}) == 9.25
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* @param oh
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*/
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public static startTime(oh: OpeningHour): number {
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return oh.startHour + oh.startMinutes / 60;
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}
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public static endTime(oh: OpeningHour): number {
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return oh.endHour + oh.endMinutes / 60;
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}
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public static startTimeLiesInRange(checked: OpeningHour, mightLieIn: OpeningHour) {
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return OH.startTime(mightLieIn) <= OH.startTime(checked) &&
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OH.startTime(checked) <= OH.endTime(mightLieIn)
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}
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public static endTimeLiesInRange(checked: OpeningHour, mightLieIn: OpeningHour) {
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return OH.startTime(mightLieIn) <= OH.endTime(checked) &&
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OH.endTime(checked) <= OH.endTime(mightLieIn)
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}
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public static parseHHMMRange(hhmmhhmm: string): {
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startHour: number,
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startMinutes: number,
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endHour: number,
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endMinutes: number
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} {
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if (hhmmhhmm == "off") {
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return null;
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}
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const timings = hhmmhhmm.split("-");
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const start = OH.parseHHMM(timings[0])
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const end = OH.parseHHMM(timings[1]);
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return {
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startHour: start.hours,
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startMinutes: start.minutes,
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endHour: end.hours,
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endMinutes: end.minutes
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}
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}
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public static ParseRule(rule: string): OpeningHour[] {
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try {
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if (rule.trim() == "24/7") {
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return OH.multiply([0, 1, 2, 3, 4, 5, 6], [{
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startHour: 0,
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startMinutes: 0,
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endHour: 24,
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endMinutes: 0
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}]);
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}
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const split = rule.trim().replace(/, */g, ",").split(" ");
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if (split.length == 1) {
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// First, try to parse this rule as a rule without weekdays
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let timeranges = OH.ParseHhmmRanges(rule);
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let weekdays = [0, 1, 2, 3, 4, 5, 6];
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return OH.multiply(weekdays, timeranges);
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}
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if (split.length == 2) {
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const weekdays = OH.ParseWeekdayRanges(split[0]);
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const timeranges = OH.ParseHhmmRanges(split[1]);
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return OH.multiply(weekdays, timeranges);
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}
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return null;
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} catch (e) {
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console.log("Could not parse weekday rule ", rule);
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return null;
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}
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}
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public static ParsePHRule(str: string): {
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mode: string,
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start?: string,
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end?: string
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} {
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if (str === undefined) {
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return null
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}
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str = str.trim();
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if (!str.startsWith("PH")) {
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return null;
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}
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str = str.trim();
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if (str === "PH off") {
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return {
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mode: "off"
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}
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}
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if (str === "PH open") {
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return {
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mode: "open"
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}
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}
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if (!str.startsWith("PH ")) {
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return null;
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}
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try {
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const timerange = OH.parseHHMMRange(str.substring(2));
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if (timerange === null) {
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return null;
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}
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return {
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mode: " ",
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start: OH.hhmm(timerange.startHour, timerange.startMinutes),
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end: OH.hhmm(timerange.endHour, timerange.endMinutes),
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}
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} catch (e) {
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return null;
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}
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}
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static Parse(rules: string) {
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if (rules === undefined || rules === "") {
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return []
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}
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const ohs = []
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const split = rules.split(";");
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for (const rule of split) {
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if (rule === "") {
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continue;
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}
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try {
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const parsed = OH.ParseRule(rule)
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if (parsed !== null) {
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ohs.push(...parsed);
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}
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} catch (e) {
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console.error("Could not parse ", rule, ": ", e)
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}
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}
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return ohs;
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}
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/*
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This function converts a number of ranges (generated by OpeningHours.js) into all the hours of day that a change occurs.
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E.g.
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Monday, some business is opended from 9:00 till 17:00
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Tuesday from 9:30 till 18:00
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Wednesday from 9:30 till 12:30
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This function will extract all those moments of change and will return 9:00, 9:30, 12:30, 17:00 and 18:00
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This list will be sorted
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*/
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public static allChangeMoments(ranges: {
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isOpen: boolean,
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isSpecial: boolean,
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comment: string,
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startDate: Date,
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endDate: Date
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}[][]): [number[], string[]] {
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const changeHours: number[] = []
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const changeHourText: string[] = [];
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const extrachangeHours: number[] = []
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const extrachangeHourText: string[] = [];
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for (const weekday of ranges) {
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for (const range of weekday) {
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if (!range.isOpen && !range.isSpecial) {
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continue;
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}
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const startOfDay: Date = new Date(range.startDate);
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startOfDay.setHours(0, 0, 0, 0);
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// The number of seconds since the start of the day
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// @ts-ignore
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const changeMoment: number = (range.startDate - startOfDay) / 1000;
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if (changeHours.indexOf(changeMoment) < 0) {
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changeHours.push(changeMoment);
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changeHourText.push(OH.hhmm(range.startDate.getHours(), range.startDate.getMinutes()))
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}
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// The number of seconds till between the start of the day and closing
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// @ts-ignore
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let changeMomentEnd: number = (range.endDate - startOfDay) / 1000;
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if (changeMomentEnd >= 24 * 60 * 60) {
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if (extrachangeHours.indexOf(changeMomentEnd) < 0) {
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extrachangeHours.push(changeMomentEnd);
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extrachangeHourText.push(OH.hhmm(range.endDate.getHours(), range.endDate.getMinutes()))
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}
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} else if (changeHours.indexOf(changeMomentEnd) < 0) {
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changeHours.push(changeMomentEnd);
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changeHourText.push(OH.hhmm(range.endDate.getHours(), range.endDate.getMinutes()))
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}
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}
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}
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// Note that 'changeHours' and 'changeHourText' will be more or less in sync - one is in numbers, the other in 'HH:MM' format.
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// But both can be sorted without problem; they'll stay in sync
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changeHourText.sort();
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changeHours.sort();
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extrachangeHourText.sort();
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extrachangeHours.sort();
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changeHourText.push(...extrachangeHourText);
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changeHours.push(...extrachangeHours);
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return [changeHours, changeHourText]
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}
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/*
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Calculates when the business is opened (or on holiday) between two dates.
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Returns a matrix of ranges, where [0] is a list of ranges when it is opened on monday, [1] is a list of ranges for tuesday, ...
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*/
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public static GetRanges(oh: any, from: Date, to: Date): ({
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isOpen: boolean,
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isSpecial: boolean,
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comment: string,
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startDate: Date,
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endDate: Date
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}[])[] {
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const values = [[], [], [], [], [], [], []];
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const start = new Date(from);
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// We go one day more into the past, in order to force rendering of holidays in the start of the period
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start.setDate(from.getDate() - 1);
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const iterator = oh.getIterator(start);
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let prevValue = undefined;
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while (iterator.advance(to)) {
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if (prevValue) {
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prevValue.endDate = iterator.getDate() as Date
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}
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const endDate = new Date(iterator.getDate()) as Date;
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endDate.setHours(0, 0, 0, 0)
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endDate.setDate(endDate.getDate() + 1);
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const value = {
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isSpecial: iterator.getUnknown(),
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isOpen: iterator.getState(),
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comment: iterator.getComment(),
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startDate: iterator.getDate() as Date,
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endDate: endDate // Should be overwritten by the next iteration
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}
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prevValue = value;
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if (value.comment === undefined && !value.isOpen && !value.isSpecial) {
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// simply closed, nothing special here
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continue;
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}
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if (value.startDate < from) {
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continue;
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}
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// Get day: sunday is 0, monday is 1. We move everything so that monday == 0
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values[(value.startDate.getDay() + 6) % 7].push(value);
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}
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return values;
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}
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private static parseHHMM(hhmm: string): { hours: number, minutes: number } {
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if (hhmm === undefined || hhmm == null) {
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return null;
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}
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const spl = hhmm.trim().split(":");
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if (spl.length != 2) {
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return null;
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}
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const hm = {hours: Number(spl[0].trim()), minutes: Number(spl[1].trim())};
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if (isNaN(hm.hours) || isNaN(hm.minutes)) {
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return null;
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}
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return hm;
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}
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private static ParseHhmmRanges(hhmms: string): {
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startHour: number,
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startMinutes: number,
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endHour: number,
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endMinutes: number
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}[] {
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if (hhmms === "off") {
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return [];
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}
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return hhmms.split(",")
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.map(s => s.trim())
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.filter(str => str !== "")
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.map(OH.parseHHMMRange)
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.filter(v => v != null)
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}
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private static ParseWeekday(weekday: string): number {
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return OH.daysIndexed[weekday.trim().toLowerCase()];
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}
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private static ParseWeekdayRange(weekdays: string): number[] {
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const split = weekdays.split("-");
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if (split.length == 1) {
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const parsed = OH.ParseWeekday(weekdays);
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if (parsed == null) {
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return null;
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}
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return [parsed];
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} else if (split.length == 2) {
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let start = OH.ParseWeekday(split[0]);
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let end = OH.ParseWeekday(split[1]);
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if ((start ?? null) === null || (end ?? null) === null) {
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return null;
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}
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let range = [];
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for (let i = start; i <= end; i++) {
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range.push(i);
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}
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return range;
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} else {
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return null;
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}
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}
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private static ParseWeekdayRanges(weekdays: string): number[] {
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let ranges = [];
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let split = weekdays.split(",");
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for (const weekday of split) {
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const parsed = OH.ParseWeekdayRange(weekday)
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if (parsed === undefined || parsed === null) {
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return null;
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}
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ranges.push(...parsed);
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}
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return ranges;
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}
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private static multiply(weekdays: number[], timeranges: { startHour: number, startMinutes: number, endHour: number, endMinutes: number }[]) {
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if ((weekdays ?? null) == null || (timeranges ?? null) == null) {
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return null;
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}
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const ohs: OpeningHour[] = []
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for (const timerange of timeranges) {
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for (const weekday of weekdays) {
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ohs.push({
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weekday: weekday,
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startHour: timerange.startHour, startMinutes: timerange.startMinutes,
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endHour: timerange.endHour, endMinutes: timerange.endMinutes,
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});
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}
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}
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return ohs;
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}
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}
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