applications/calendar/src/app/components/eventModal/eventForm/propertiesToFrequencyModel.tsx

   1 import { DAILY_TYPE, FREQUENCY, WEEKLY_TYPE, YEARLY_TYPE } from '@proton/shared/lib/calendar/constants';
   2 import { getIsRruleCustom, getIsRruleSimple } from '@proton/shared/lib/calendar/recurrence/rrule';
   3 import {
   4     getEndType,
   5     getMonthType,
   6     getUntilDate,
   7     getWeeklyDays,
   8 } from '@proton/shared/lib/calendar/recurrence/rruleProperties';
   9 import { fromUTCDate, toLocalDate } from '@proton/shared/lib/date/timezone';
  10 import type { DateTimeModel, FrequencyModel } from '@proton/shared/lib/interfaces/calendar';
  11 import type { VcalRruleFreqValue, VcalRruleProperty } from '@proton/shared/lib/interfaces/calendar/VcalModel';
  12 import unique from '@proton/utils/unique';
  13
  14 const getSafeWeeklyDays = (startDate: Date, byday?: string | string[]) => {
  15     const DEFAULT = [startDate.getDay()];
  16     const days = getWeeklyDays(byday);
  17     return unique([...DEFAULT].concat(days));
  18 };
  19
  20 const getSafeFrequency = (freq: VcalRruleFreqValue): FREQUENCY | undefined => {
  21     if (!freq) {
  22         return;
  23     }
  24     return Object.values(FREQUENCY).find((value) => value.toLowerCase() === freq.toLowerCase());
  25 };
  26
  27 const getType = (isSimple: boolean, isCustom: boolean, freq: VcalRruleFreqValue) => {
  28     if (!isSimple && !isCustom) {
  29         return FREQUENCY.OTHER;
  30     }
  31     if (isCustom) {
  32         return FREQUENCY.CUSTOM;
  33     }
  34     return getSafeFrequency(freq) || FREQUENCY.ONCE;
  35 };
  36
  37 const getFrequency = (freq: VcalRruleFreqValue) => {
  38     return getSafeFrequency(freq) || FREQUENCY.WEEKLY;
  39 };
  40
  41 /**
  42  * Given a parsed recurrence rule in standard format,
  43  * parse it into the object that goes in the Event model
  44  */
  45 export const propertiesToFrequencyModel = (
  46     rrule: VcalRruleProperty | undefined,
  47     { date: startDate, tzid: startTzid }: DateTimeModel
  48 ): FrequencyModel => {
  49     const rruleValue = rrule?.value;
  50     const { freq, count, interval, until, bysetpos, byday } = rruleValue || {};
  51     const isSimple = getIsRruleSimple(rruleValue);
  52     const isCustom = !isSimple ? getIsRruleCustom(rruleValue) : false;
  53     const type = !rrule ? FREQUENCY.ONCE : getType(isSimple, isCustom, freq);
  54     const frequency = getFrequency(freq);
  55     const endType = getEndType(count, until);
  56     const monthType = getMonthType(byday, bysetpos);
  57     const utcUntilDate = getUntilDate(until, startTzid);
  58     const untilDate = utcUntilDate ? toLocalDate(fromUTCDate(utcUntilDate)) : undefined;
  59     const weeklyDays = getSafeWeeklyDays(startDate, byday);
  60
  61     return {
  62         type,
  63         frequency,
  64         interval: interval || 1, // INTERVAL=1 is ignored when parsing a recurring rule
  65         daily: {
  66             type: DAILY_TYPE.ALL_DAYS,
  67         },
  68         weekly: {
  69             type: WEEKLY_TYPE.ON_DAYS,
  70             days: weeklyDays,
  71         },
  72         monthly: {
  73             type: monthType,
  74         },
  75         yearly: {
  76             type: YEARLY_TYPE.BY_MONTH_ON_MONTH_DAY,
  77         },
  78         ends: {
  79             type: endType,
  80             count: count || 2,
  81             until: untilDate,
  82         },
  83         vcalRruleValue: rruleValue,
  84     };
  85 };