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Code Issues 1 Packages Projects Releases Wiki Activity

Improve date handling (#94)

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This commit is contained in:
Simon J
2022-02-02 13:26:01 +11:00
committed by GitHub
parent d0c80b2f20
commit df9a6d4663
3 changed files with 115 additions and 62 deletions
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48
src/clock.ts
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@@ -1,13 +1,38 @@
import dayjs, { Dayjs } from "dayjs";
export const isChristmas = (clock: Clock = SystemClock) => clock.now().month() == 11 && clock.now().date() == 25;
export const isMay4 = (clock: Clock = SystemClock) => clock.now().month() == 4 && clock.now().date() == 4;
export const isHalloween = (clock: Clock = SystemClock) => clock.now().month() == 9 && clock.now().date() == 31
export const isHoli = (clock: Clock = SystemClock) => ["2022/03/18", "2023/03/07", "2024/03/25", "2025/03/14"].map(dayjs).find(it => it.isSame(clock.now())) != undefined
export const isCNY = (clock: Clock = SystemClock) => ["2022/02/01", "2023/01/22", "2024/02/10", "2025/02/29"].map(dayjs).find(it => it.isSame(clock.now())) != undefined
export const isCNY_2022 = (clock: Clock = SystemClock) => clock.now().isSame(dayjs("2022/02/01"))
export const isCNY_2023 = (clock: Clock = SystemClock) => clock.now().isSame(dayjs("2023/01/22"))
export const isCNY_2024 = (clock: Clock = SystemClock) => clock.now().isSame(dayjs("2024/02/10"))
function fixedDateMonthEvent(dateMonth: string) {
const date = Number.parseInt(dateMonth.split("/")[0]!);
const month = Number.parseInt(dateMonth.split("/")[1]!);
return (clock: Clock = SystemClock) => {
return clock.now().date() == date && clock.now().month() == month - 1;
};
}
function fixedDateEvent(date: string) {
const dayjsDate = dayjs(date);
return (clock: Clock = SystemClock) => {
return clock.now().isSame(dayjsDate, "day");
};
}
function anyOf(rules: ((clock: Clock) => boolean)[]) {
return (clock: Clock = SystemClock) => {
return rules.find((rule) => rule(clock)) != undefined;
};
}
export const isChristmas = fixedDateMonthEvent("25/12");
export const isMay4 = fixedDateMonthEvent("04/05");
export const isHalloween = fixedDateMonthEvent("31/10");
export const isHoli = anyOf(
["2022/03/18", "2023/03/07", "2024/03/25", "2025/03/14"].map(fixedDateEvent)
)
export const isCNY_2022 = fixedDateEvent("2022/02/01");
export const isCNY_2023 = fixedDateEvent("2023/01/22");
export const isCNY_2024 = fixedDateEvent("2024/02/10");
export const isCNY_2025 = fixedDateEvent("2025/02/29");
export const isCNY = anyOf([isCNY_2022, isCNY_2023, isCNY_2024, isCNY_2025]);
export interface Clock {
now(): Dayjs;
@@ -17,12 +42,13 @@ export const SystemClock = { now: () => dayjs() };
export class FixedClock implements Clock {
time: Dayjs;
constructor(time: Dayjs = dayjs()) {
this.time = time;
}
add = (t: number, unit: dayjs.UnitTypeShort) => this.time = this.time.add(t, unit)
add = (t: number, unit: dayjs.UnitTypeShort) =>
(this.time = this.time.add(t, unit));
now = () => this.time;
}
}