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2901: Fix recurring dates yet again #2902

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merged 7 commits into from
Sep 3, 2024
Merged

2901: Fix recurring dates yet again #2902

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d0eb62a
2901: Rewrite the rrule in local time to keep all params
LeandraH Aug 28, 2024
5ecd6e1
2901: Add more tests
LeandraH Aug 28, 2024
f750f8c
2901: Add an explaining comment
LeandraH Aug 30, 2024
db46d87
2901: Use pre-existing ical function
LeandraH Sep 2, 2024
759fead
2901: Also fix the recurring date export
LeandraH Sep 2, 2024
7cb3a3e
2901: Fix lint
LeandraH Sep 2, 2024
b2b7a35
Merge branch 'main' into 2901-Fix-recurring-dates-yet-again
LeandraH Sep 3, 2024
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16 changes: 7 additions & 9 deletions shared/api/models/DateModel.ts
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
import { DateTime, Duration } from 'luxon'
import { RRule as RRuleType } from 'rrule'
import { RRule as RRuleType, rrulestr } from 'rrule'

const MAX_RECURRENCE_YEARS = 5

Expand Down Expand Up @@ -137,14 +137,12 @@ class DateModel {

private getRecurrenceRuleInLocalTime(recurrenceRule: RRuleType): RRuleType {
const startDate = recurrenceRule.options.dtstart
const offsetStartDate = DateTime.fromJSDate(startDate).minus({ minutes: startDate.getTimezoneOffset() }).toJSDate()
return new RRuleType({
freq: recurrenceRule.options.freq,
byweekday: recurrenceRule.options.byweekday,
interval: recurrenceRule.options.interval,
until: recurrenceRule.options.until,
dtstart: offsetStartDate,
})
const offsetStartDate = DateTime.fromJSDate(startDate)
.minus({ minutes: startDate.getTimezoneOffset() })
.toUTC()
.toFormat("yyyyMMdd'T'HHmmss")
const regexForFindingDate = /\d{8}T\d{6}/
return rrulestr(recurrenceRule.toString().replace(regexForFindingDate, offsetStartDate))
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}

isEqual(other: DateModel): boolean {
Expand Down
169 changes: 169 additions & 0 deletions shared/api/models/__tests__/DateModel.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -400,5 +400,174 @@ describe('DateModel', () => {
}),
])
})

it('should correctly handle events recurring every second week of the month', () => {
jest.useFakeTimers({ now: new Date('2024-07-28T15:23:57.443+02:00') })
const recurrenceRule = rrulestr('DTSTART:20240620T083000\nRRULE:FREQ=MONTHLY;BYDAY=+2MO')
const date = new DateModel({
startDate: DateTime.fromISO('2024-06-20T10:30:00.000+02:00'),
endDate: DateTime.fromISO('2024-06-20T12:00:00.000+02:00'),
allDay: false,
recurrenceRule,
})

expect(date.recurrences(3)).toEqual([
new DateModel({
allDay: false,
recurrenceRule,
startDate: DateTime.fromISO('2024-08-12T10:30:00.000+02:00'),
endDate: DateTime.fromISO('2024-08-12T12:00:00.000+02:00'),
offset: 120,
}),
new DateModel({
allDay: false,
recurrenceRule,
startDate: DateTime.fromISO('2024-09-09T10:30:00.000+02:00'),
endDate: DateTime.fromISO('2024-09-09T12:00:00.000+02:00'),
offset: 120,
}),
new DateModel({
allDay: false,
recurrenceRule,
startDate: DateTime.fromISO('2024-10-14T10:30:00.000+02:00'),
endDate: DateTime.fromISO('2024-10-14T12:00:00.000+02:00'),
offset: 120,
}),
])
})

it('should correctly handle events recurring every last week of the month', () => {
jest.useFakeTimers({ now: new Date('2024-08-28T15:23:57.443+02:00') })
const recurrenceRule = rrulestr('DTSTART:20240827T220000\nRRULE:FREQ=MONTHLY;BYDAY=-1WE')
const date = new DateModel({
startDate: DateTime.fromISO('2024-08-28T00:00:00.000+02:00'),
endDate: DateTime.fromISO('2024-08-28T23:59:00.000+02:00'),
allDay: true,
recurrenceRule,
})

expect(date.recurrences(3)).toEqual([
new DateModel({
allDay: true,
recurrenceRule,
startDate: DateTime.fromISO('2024-08-28T00:00:00.000+02:00'),
endDate: DateTime.fromISO('2024-08-28T23:59:00.000+02:00'),
offset: 120,
}),
new DateModel({
allDay: true,
recurrenceRule,
startDate: DateTime.fromISO('2024-09-25T00:00:00.000+02:00'),
endDate: DateTime.fromISO('2024-09-25T23:59:00.000+02:00'),
offset: 120,
}),
new DateModel({
allDay: true,
recurrenceRule,
startDate: DateTime.fromISO('2024-10-30T00:00:00.000+01:00'),
endDate: DateTime.fromISO('2024-10-30T23:59:00.000+01:00'),
offset: 120,
}),
])
})

it('should correctly handle events recurring every third week of every second month', () => {
jest.useFakeTimers({ now: new Date('2024-08-28T15:23:57.443+02:00') })
const recurrenceRule = rrulestr('DTSTART:20240620T083000\nRRULE:FREQ=MONTHLY;INTERVAL=2;BYDAY=+3TH')
const date = new DateModel({
startDate: DateTime.fromISO('2024-06-20T10:30:00.000+02:00'),
endDate: DateTime.fromISO('2024-06-20T12:00:00.000+02:00'),
allDay: false,
recurrenceRule,
})

expect(date.recurrences(3)).toEqual([
new DateModel({
allDay: false,
recurrenceRule,
startDate: DateTime.fromISO('2024-10-17T10:30:00.000+02:00'),
endDate: DateTime.fromISO('2024-10-17T12:00:00.000+02:00'),
offset: 120,
}),
new DateModel({
allDay: false,
recurrenceRule,
startDate: DateTime.fromISO('2024-12-19T10:30:00.000+01:00'),
endDate: DateTime.fromISO('2024-12-19T12:00:00.000+01:00'),
offset: 120,
}),
new DateModel({
allDay: false,
recurrenceRule,
startDate: DateTime.fromISO('2025-02-20T10:30:00.000+01:00'),
endDate: DateTime.fromISO('2025-02-20T12:00:00.000+01:00'),
offset: 120,
}),
])
})

it('should correctly handle events repeating annually', () => {
jest.useFakeTimers({ now: new Date('2024-08-28T15:23:57.443+02:00') })
const recurrenceRule = rrulestr('DTSTART:20241205T230000\nRRULE:FREQ=YEARLY')
const date = new DateModel({
startDate: DateTime.fromISO('2024-12-06T00:00:00.000+01:00'),
endDate: DateTime.fromISO('2024-12-06T23:59:00.000+01:00'),
allDay: true,
recurrenceRule,
})

expect(date.recurrences(3)).toEqual([
new DateModel({
allDay: true,
startDate: DateTime.fromISO('2024-12-06T00:00:00.000+01:00'),
endDate: DateTime.fromISO('2024-12-06T23:59:00.000+01:00'),
recurrenceRule,
}),
new DateModel({
allDay: true,
startDate: DateTime.fromISO('2025-12-06T00:00:00.000+01:00'),
endDate: DateTime.fromISO('2025-12-06T23:59:00.000+01:00'),
recurrenceRule,
}),
new DateModel({
allDay: true,
startDate: DateTime.fromISO('2026-12-06T00:00:00.000+01:00'),
endDate: DateTime.fromISO('2026-12-06T23:59:00.000+01:00'),
recurrenceRule,
}),
])
})

it('should correctly handle events repeating every 2 years', () => {
jest.useFakeTimers({ now: new Date('2024-08-28T15:23:57.443+02:00') })
const recurrenceRule = rrulestr('DTSTART:20241205T230000\nRRULE:FREQ=YEARLY;INTERVAL=2')
const date = new DateModel({
startDate: DateTime.fromISO('2024-12-06T00:00:00.000+01:00'),
endDate: DateTime.fromISO('2024-12-06T23:59:00.000+01:00'),
allDay: true,
recurrenceRule,
})

expect(date.recurrences(3)).toEqual([
new DateModel({
allDay: true,
startDate: DateTime.fromISO('2024-12-06T00:00:00.000+01:00'),
endDate: DateTime.fromISO('2024-12-06T23:59:00.000+01:00'),
recurrenceRule,
}),
new DateModel({
allDay: true,
startDate: DateTime.fromISO('2026-12-06T00:00:00.000+01:00'),
endDate: DateTime.fromISO('2026-12-06T23:59:00.000+01:00'),
recurrenceRule,
}),
new DateModel({
allDay: true,
startDate: DateTime.fromISO('2028-12-06T00:00:00.000+01:00'),
endDate: DateTime.fromISO('2028-12-06T23:59:00.000+01:00'),
recurrenceRule,
}),
])
})
})
})
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