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chore(refactor): extract date utility functions
- cleanup utility functions in CalOohPay.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /** | ||
| * Converts a given date to a local ISO string with timezone offset. | ||
| * | ||
| * This function takes a `Date` object and returns a string in the ISO 8601 format | ||
| * with the local timezone offset included. The resulting string will be in the format | ||
| * `YYYY-MM-DDTHH:mm:ss±HH:00`. | ||
| * | ||
| * @param date - The `Date` object to be converted. | ||
| * @returns A string representing the local ISO time with timezone offset. | ||
| */ | ||
| export function toLocaTzIsoStringWithOffset(date: Date): string { | ||
| var timezoneOffsetInMilliseconds = date.getTimezoneOffset() * 60000; | ||
| var localISOTime = (new Date(date.getTime() - timezoneOffsetInMilliseconds)).toISOString().slice(0, -5); | ||
| let timezoneOffsetInHours = -(timezoneOffsetInMilliseconds / 3600000); | ||
| let localISOTimeWithOffset = localISOTime + | ||
| (timezoneOffsetInHours >= 0 ? '+' : '-') + | ||
| (Math.abs(timezoneOffsetInHours) < 10 ? '0' : '') + | ||
| timezoneOffsetInHours + ':00'; | ||
| return localISOTimeWithOffset; | ||
| } | ||
|
|
||
| /** | ||
| * Converts a given date to a specified timezone. | ||
| * | ||
| * @param date - The date to be converted. Can be a Date object or a string representing a date. | ||
| * @param timeZoneId - The IANA timezone identifier (e.g., "America/New_York", "Europe/London"). | ||
| * @returns A new Date object representing the same moment in time in the specified timezone. | ||
| */ | ||
| export function convertTimezone(date: Date, timeZoneId: string): Date { | ||
| return new Date( | ||
| (typeof date === "string" ? new Date(date) : date) | ||
| .toLocaleString("en-GB", {timeZone: timeZoneId})); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,13 @@ | ||
|
|
||
| export interface Environment { | ||
| API_TOKEN: string; | ||
| } | ||
|
|
||
| export function sanitiseEnvVariable(envVars: NodeJS.ProcessEnv): Environment { | ||
| if (!envVars.API_TOKEN) { | ||
| throw new Error("API_TOKEN not defined"); | ||
| } | ||
| return { | ||
| API_TOKEN: envVars.API_TOKEN, | ||
| }; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| import { FinalSchedule } from "./FinalSchedule.js"; | ||
|
|
||
| export interface PagerdutySchedule { | ||
| name: string; | ||
| html_url: string; | ||
| final_schedule: FinalSchedule; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| import { toLocaTzIsoStringWithOffset } from '../src/DateUtilities'; | ||
| import {describe, expect, test} from '@jest/globals'; | ||
|
|
||
| describe('DateUtilities.toLocaTzIsoStringWithOffset', () => { | ||
| test('should convert UTC date to local ISO string with timezone offset', () => { | ||
| const date = new Date('2023-10-01T12:00:00Z'); | ||
| const result = toLocaTzIsoStringWithOffset(date); | ||
| const expectedLocalISOTime = '2023-10-01T13:00:00+01:00'; | ||
| expect(result).toBe(expectedLocalISOTime); | ||
| }); | ||
|
|
||
| test('should handle dates with positive timezone offsets', () => { | ||
| const date = new Date('2023-10-01T12:00:00+02:00'); | ||
| const result = toLocaTzIsoStringWithOffset(date); | ||
| const expectedLocalISOTime = '2023-10-01T11:00:00+01:00'; | ||
| expect(result).toBe(expectedLocalISOTime); | ||
| }); | ||
|
|
||
| test('should handle dates with negative timezone offsets', () => { | ||
| const date = new Date('2023-10-01T12:00:00-05:00'); | ||
| const result = toLocaTzIsoStringWithOffset(date); | ||
| const expectedLocalISOTime = '2023-10-01T18:00:00+01:00'; | ||
| expect(result).toBe(expectedLocalISOTime); | ||
| }); | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| import {describe, expect, test} from '@jest/globals'; | ||
| import { OnCallPeriod } from '../src/OnCallPeriod'; | ||
|
|
||
| describe('should initialise OnCallPeriod with the right number of weekdays and weekends', () => { | ||
| test('- when the shift starts 1st of month and is until the 12th of the month', () => { | ||
| const onCallPeriod = new OnCallPeriod(new Date('2024-08-01T00:00:00+01:00'), new Date('2024-08-12T10:00:00+01:00')); | ||
| expect(onCallPeriod.since).toStrictEqual(new Date('2024-08-01T00:00:00+01:00')); | ||
| expect(onCallPeriod.until).toStrictEqual(new Date('2024-08-12T10:00:00+01:00')); | ||
| }); | ||
|
|
||
| test('- when the shift starts and ends on the same day, just 2 hours in the evening', () => { | ||
| const onCallPeriod = new OnCallPeriod( | ||
| new Date('2024-09-20T16:30:00+01:00'), | ||
| new Date('2024-09-20T18:30:00+01:00'), | ||
| ); | ||
| expect(onCallPeriod.since).toStrictEqual(new Date('2024-09-20T16:30:00+01:00')); | ||
| expect(onCallPeriod.until).toStrictEqual(new Date('2024-09-20T18:30:00+01:00')); | ||
| expect(onCallPeriod.numberOfOOhWeekDays).toBe(0); | ||
| expect(onCallPeriod.numberOfOohWeekends).toBe(0); | ||
| }); | ||
|
|
||
| test('- when the shift starts on Friday 8pm and extends until Monday morning, numberOfOohWeekends must be 3', () => { | ||
| const since = new Date('2024-09-20T20:00:00+01:00'); | ||
| const until = new Date('2024-09-23T10:00:00+01:00'); | ||
| const onCallPeriod = new OnCallPeriod( | ||
| since, | ||
| until, | ||
| ); | ||
| expect(onCallPeriod.since).toStrictEqual(since); | ||
| expect(onCallPeriod.until).toStrictEqual(until); | ||
| expect(onCallPeriod.numberOfOOhWeekDays).toBe(0); | ||
| expect(onCallPeriod.numberOfOohWeekends).toBe(3); | ||
| }); | ||
|
|
||
| test('- when the shift starts on 2024-08-28T10:00:00+01:00 and extends until 2024-09-02T10:00:00+01:00', () => { | ||
| const since = new Date('2024-08-28T10:00:00+01:00'); | ||
| const until = new Date('2024-09-02T10:00:00+01:00'); | ||
| const onCallPeriod = new OnCallPeriod( | ||
| since, | ||
| until, | ||
| ); | ||
| expect(onCallPeriod.since).toStrictEqual(since); | ||
| expect(onCallPeriod.until).toStrictEqual(until); | ||
| expect(onCallPeriod.numberOfOOhWeekDays).toBe(2); | ||
| expect(onCallPeriod.numberOfOohWeekends).toBe(3); | ||
| }); | ||
| }) |