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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.unsafeParse = exports.sequence = exports.parse = exports.next = exports.match = exports.make = exports.isParseError = exports.isCron = exports.equals = exports.TypeId = exports.ParseErrorTypeId = exports.ParseError = exports.Equivalence = void 0;
var Arr = _interopRequireWildcard(require("./Array.js"));
var Data = _interopRequireWildcard(require("./Data.js"));
var Either = _interopRequireWildcard(require("./Either.js"));
var Equal = _interopRequireWildcard(require("./Equal.js"));
var equivalence = _interopRequireWildcard(require("./Equivalence.js"));
var _Function = require("./Function.js");
var Hash = _interopRequireWildcard(require("./Hash.js"));
var _Inspectable = require("./Inspectable.js");
var dateTime = _interopRequireWildcard(require("./internal/dateTime.js"));
var N = _interopRequireWildcard(require("./Number.js"));
var Option = _interopRequireWildcard(require("./Option.js"));
var _Pipeable = require("./Pipeable.js");
var _Predicate = require("./Predicate.js");
var String = _interopRequireWildcard(require("./String.js"));
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
/**
* @since 2.0.0
*/
/**
* @since 2.0.0
* @category symbols
*/
const TypeId = exports.TypeId = /*#__PURE__*/Symbol.for("effect/Cron");
const CronProto = {
[TypeId]: TypeId,
[Equal.symbol](that) {
return isCron(that) && equals(this, that);
},
[Hash.symbol]() {
return (0, _Function.pipe)(Hash.hash(this.tz), Hash.combine(Hash.array(Arr.fromIterable(this.seconds))), Hash.combine(Hash.array(Arr.fromIterable(this.minutes))), Hash.combine(Hash.array(Arr.fromIterable(this.hours))), Hash.combine(Hash.array(Arr.fromIterable(this.days))), Hash.combine(Hash.array(Arr.fromIterable(this.months))), Hash.combine(Hash.array(Arr.fromIterable(this.weekdays))), Hash.cached(this));
},
toString() {
return (0, _Inspectable.format)(this.toJSON());
},
toJSON() {
return {
_id: "Cron",
tz: this.tz,
seconds: Arr.fromIterable(this.seconds),
minutes: Arr.fromIterable(this.minutes),
hours: Arr.fromIterable(this.hours),
days: Arr.fromIterable(this.days),
months: Arr.fromIterable(this.months),
weekdays: Arr.fromIterable(this.weekdays)
};
},
[_Inspectable.NodeInspectSymbol]() {
return this.toJSON();
},
pipe() {
return (0, _Pipeable.pipeArguments)(this, arguments);
}
};
/**
* Checks if a given value is a `Cron` instance.
*
* @since 2.0.0
* @category guards
*/
const isCron = u => (0, _Predicate.hasProperty)(u, TypeId);
/**
* Creates a `Cron` instance.
*
* @since 2.0.0
* @category constructors
*/
exports.isCron = isCron;
const make = values => {
const o = Object.create(CronProto);
o.seconds = new Set(Arr.sort(values.seconds ?? [0], N.Order));
o.minutes = new Set(Arr.sort(values.minutes, N.Order));
o.hours = new Set(Arr.sort(values.hours, N.Order));
o.days = new Set(Arr.sort(values.days, N.Order));
o.months = new Set(Arr.sort(values.months, N.Order));
o.weekdays = new Set(Arr.sort(values.weekdays, N.Order));
o.tz = Option.fromNullable(values.tz);
const seconds = Array.from(o.seconds);
const minutes = Array.from(o.minutes);
const hours = Array.from(o.hours);
const days = Array.from(o.days);
const months = Array.from(o.months);
const weekdays = Array.from(o.weekdays);
o.first = {
second: seconds[0] ?? 0,
minute: minutes[0] ?? 0,
hour: hours[0] ?? 0,
day: days[0] ?? 1,
month: (months[0] ?? 1) - 1,
weekday: weekdays[0] ?? 0
};
o.next = {
second: nextLookupTable(seconds, 60),
minute: nextLookupTable(minutes, 60),
hour: nextLookupTable(hours, 24),
day: nextLookupTable(days, 32),
month: nextLookupTable(months, 13),
weekday: nextLookupTable(weekdays, 7)
};
return o;
};
exports.make = make;
const nextLookupTable = (values, size) => {
const result = new Array(size).fill(undefined);
if (values.length === 0) {
return result;
}
let current = undefined;
let index = values.length - 1;
for (let i = size - 1; i >= 0; i--) {
while (index >= 0 && values[index] >= i) {
current = values[index--];
}
result[i] = current;
}
return result;
};
/**
* @since 2.0.0
* @category symbol
*/
const ParseErrorTypeId = exports.ParseErrorTypeId = /*#__PURE__*/Symbol.for("effect/Cron/errors/ParseError");
/**
* Represents a checked exception which occurs when decoding fails.
*
* @since 2.0.0
* @category models
*/
class ParseError extends /*#__PURE__*/Data.TaggedError("CronParseError") {
/**
* @since 2.0.0
*/
[ParseErrorTypeId] = ParseErrorTypeId;
}
/**
* Returns `true` if the specified value is an `ParseError`, `false` otherwise.
*
* @since 2.0.0
* @category guards
*/
exports.ParseError = ParseError;
const isParseError = u => (0, _Predicate.hasProperty)(u, ParseErrorTypeId);
/**
* Parses a cron expression into a `Cron` instance.
*
* @example
* ```ts
* import * as assert from "node:assert"
* import { Cron, Either } from "effect"
*
* // At 04:00 on every day-of-month from 8 through 14.
* assert.deepStrictEqual(Cron.parse("0 0 4 8-14 * *"), Either.right(Cron.make({
* seconds: [0],
* minutes: [0],
* hours: [4],
* days: [8, 9, 10, 11, 12, 13, 14],
* months: [],
* weekdays: []
* })))
* ```
*
* @since 2.0.0
* @category constructors
*/
exports.isParseError = isParseError;
const parse = (cron, tz) => {
const segments = cron.split(" ").filter(String.isNonEmpty);
if (segments.length !== 5 && segments.length !== 6) {
return Either.left(new ParseError({
message: `Invalid number of segments in cron expression`,
input: cron
}));
}
if (segments.length === 5) {
segments.unshift("0");
}
const [seconds, minutes, hours, days, months, weekdays] = segments;
const zone = tz === undefined || dateTime.isTimeZone(tz) ? Either.right(tz) : Either.fromOption(dateTime.zoneFromString(tz), () => new ParseError({
message: `Invalid time zone in cron expression`,
input: tz
}));
return Either.all({
tz: zone,
seconds: parseSegment(seconds, secondOptions),
minutes: parseSegment(minutes, minuteOptions),
hours: parseSegment(hours, hourOptions),
days: parseSegment(days, dayOptions),
months: parseSegment(months, monthOptions),
weekdays: parseSegment(weekdays, weekdayOptions)
}).pipe(Either.map(make));
};
/**
* Parses a cron expression into a `Cron` instance.
*
* **Details**
*
* This function takes a cron expression as a string and attempts to parse it
* into a `Cron` instance. If the expression is valid, the resulting `Cron`
* instance will represent the schedule defined by the cron expression.
*
* If the expression is invalid, the function throws a `ParseError`.
*
* You can optionally provide a time zone (`tz`) to interpret the cron
* expression in a specific time zone. If no time zone is provided, the cron
* expression will use the default time zone.
*
* @example
* ```ts
* import { Cron } from "effect"
*
* // At 04:00 on every day-of-month from 8 through 14.
* console.log(Cron.unsafeParse("0 4 8-14 * *"))
* // Output:
* // {
* // _id: 'Cron',
* // tz: { _id: 'Option', _tag: 'None' },
* // seconds: [ 0 ],
* // minutes: [ 0 ],
* // hours: [ 4 ],
* // days: [
* // 8, 9, 10, 11,
* // 12, 13, 14
* // ],
* // months: [],
* // weekdays: []
* // }
* ```
*
* @since 2.0.0
* @category constructors
*/
exports.parse = parse;
const unsafeParse = (cron, tz) => Either.getOrThrowWith(parse(cron, tz), _Function.identity);
/**
* Checks if a given `Date` falls within an active `Cron` time window.
*
* @example
* ```ts
* import * as assert from "node:assert"
* import { Cron, Either } from "effect"
*
* const cron = Either.getOrThrow(Cron.parse("0 4 8-14 * *"))
* assert.deepStrictEqual(Cron.match(cron, new Date("2021-01-08 04:00:00")), true)
* assert.deepStrictEqual(Cron.match(cron, new Date("2021-01-08 05:00:00")), false)
* ```
*
* @throws `IllegalArgumentException` if the given `DateTime.Input` is invalid.
*
* @since 2.0.0
*/
exports.unsafeParse = unsafeParse;
const match = (cron, date) => {
const parts = dateTime.unsafeMakeZoned(date, {
timeZone: Option.getOrUndefined(cron.tz)
}).pipe(dateTime.toParts);
if (cron.seconds.size !== 0 && !cron.seconds.has(parts.seconds)) {
return false;
}
if (cron.minutes.size !== 0 && !cron.minutes.has(parts.minutes)) {
return false;
}
if (cron.hours.size !== 0 && !cron.hours.has(parts.hours)) {
return false;
}
if (cron.months.size !== 0 && !cron.months.has(parts.month)) {
return false;
}
if (cron.days.size === 0 && cron.weekdays.size === 0) {
return true;
}
if (cron.weekdays.size === 0) {
return cron.days.has(parts.day);
}
if (cron.days.size === 0) {
return cron.weekdays.has(parts.weekDay);
}
return cron.days.has(parts.day) || cron.weekdays.has(parts.weekDay);
};
exports.match = match;
const daysInMonth = date => new Date(Date.UTC(date.getUTCFullYear(), date.getUTCMonth() + 1, 0)).getUTCDate();
/**
* Returns the next run `Date` for the given `Cron` instance.
*
* Uses the current time as a starting point if no value is provided for `now`.
*
* @example
* ```ts
* import * as assert from "node:assert"
* import { Cron, Either } from "effect"
*
* const after = new Date("2021-01-01 00:00:00")
* const cron = Either.getOrThrow(Cron.parse("0 4 8-14 * *"))
* assert.deepStrictEqual(Cron.next(cron, after), new Date("2021-01-08 04:00:00"))
* ```
*
* @throws `IllegalArgumentException` if the given `DateTime.Input` is invalid.
* @throws `Error` if the next run date cannot be found within 10,000 iterations.
*
* @since 2.0.0
*/
const next = (cron, startFrom) => {
const tz = Option.getOrUndefined(cron.tz);
const zoned = dateTime.unsafeMakeZoned(startFrom ?? new Date(), {
timeZone: tz
});
const utc = tz !== undefined && dateTime.isTimeZoneNamed(tz) && tz.id === "UTC";
const adjustDst = utc ? _Function.constVoid : current => {
const adjusted = dateTime.unsafeMakeZoned(current, {
timeZone: zoned.zone,
adjustForTimeZone: true
}).pipe(dateTime.toDate);
// TODO: This implementation currently only skips forward when transitioning into daylight savings time.
const drift = current.getTime() - adjusted.getTime();
if (drift > 0) {
current.setTime(current.getTime() + drift);
}
};
const result = dateTime.mutate(zoned, current => {
current.setUTCSeconds(current.getUTCSeconds() + 1, 0);
for (let i = 0; i < 10_000; i++) {
if (cron.seconds.size !== 0) {
const currentSecond = current.getUTCSeconds();
const nextSecond = cron.next.second[currentSecond];
if (nextSecond === undefined) {
current.setUTCMinutes(current.getUTCMinutes() + 1, cron.first.second);
adjustDst(current);
continue;
}
if (nextSecond > currentSecond) {
current.setUTCSeconds(nextSecond);
adjustDst(current);
continue;
}
}
if (cron.minutes.size !== 0) {
const currentMinute = current.getUTCMinutes();
const nextMinute = cron.next.minute[currentMinute];
if (nextMinute === undefined) {
current.setUTCHours(current.getUTCHours() + 1, cron.first.minute, cron.first.second);
adjustDst(current);
continue;
}
if (nextMinute > currentMinute) {
current.setUTCMinutes(nextMinute, cron.first.second);
adjustDst(current);
continue;
}
}
if (cron.hours.size !== 0) {
const currentHour = current.getUTCHours();
const nextHour = cron.next.hour[currentHour];
if (nextHour === undefined) {
current.setUTCDate(current.getUTCDate() + 1);
current.setUTCHours(cron.first.hour, cron.first.minute, cron.first.second);
adjustDst(current);
continue;
}
if (nextHour > currentHour) {
current.setUTCHours(nextHour, cron.first.minute, cron.first.second);
adjustDst(current);
continue;
}
}
if (cron.weekdays.size !== 0 || cron.days.size !== 0) {
let a = Infinity;
let b = Infinity;
if (cron.weekdays.size !== 0) {
const currentWeekday = current.getUTCDay();
const nextWeekday = cron.next.weekday[currentWeekday];
a = nextWeekday === undefined ? 7 - currentWeekday + cron.first.weekday : nextWeekday - currentWeekday;
}
if (cron.days.size !== 0 && a !== 0) {
const currentDay = current.getUTCDate();
const nextDay = cron.next.day[currentDay];
b = nextDay === undefined ? daysInMonth(current) - currentDay + cron.first.day : nextDay - currentDay;
}
const addDays = Math.min(a, b);
if (addDays !== 0) {
current.setUTCDate(current.getUTCDate() + addDays);
current.setUTCHours(cron.first.hour, cron.first.minute, cron.first.second);
adjustDst(current);
continue;
}
}
if (cron.months.size !== 0) {
const currentMonth = current.getUTCMonth() + 1;
const nextMonth = cron.next.month[currentMonth];
if (nextMonth === undefined) {
current.setUTCFullYear(current.getUTCFullYear() + 1);
current.setUTCMonth(cron.first.month, cron.first.day);
current.setUTCHours(cron.first.hour, cron.first.minute, cron.first.second);
adjustDst(current);
continue;
}
if (nextMonth > currentMonth) {
current.setUTCMonth(nextMonth - 1, cron.first.day);
current.setUTCHours(cron.first.hour, cron.first.minute, cron.first.second);
adjustDst(current);
continue;
}
}
return;
}
throw new Error("Unable to find next cron date");
});
return dateTime.toDateUtc(result);
};
/**
* Returns an `IterableIterator` which yields the sequence of `Date`s that match the `Cron` instance.
*
* @since 2.0.0
*/
exports.next = next;
const sequence = function* (cron, startFrom) {
while (true) {
yield startFrom = next(cron, startFrom);
}
};
/**
* @category instances
* @since 2.0.0
*/
exports.sequence = sequence;
const Equivalence = exports.Equivalence = /*#__PURE__*/equivalence.make((self, that) => restrictionsEquals(self.seconds, that.seconds) && restrictionsEquals(self.minutes, that.minutes) && restrictionsEquals(self.hours, that.hours) && restrictionsEquals(self.days, that.days) && restrictionsEquals(self.months, that.months) && restrictionsEquals(self.weekdays, that.weekdays));
const restrictionsArrayEquals = /*#__PURE__*/equivalence.array(equivalence.number);
const restrictionsEquals = (self, that) => restrictionsArrayEquals(Arr.fromIterable(self), Arr.fromIterable(that));
/**
* Checks if two `Cron`s are equal.
*
* @since 2.0.0
* @category predicates
*/
const equals = exports.equals = /*#__PURE__*/(0, _Function.dual)(2, (self, that) => Equivalence(self, that));
const secondOptions = {
min: 0,
max: 59
};
const minuteOptions = {
min: 0,
max: 59
};
const hourOptions = {
min: 0,
max: 23
};
const dayOptions = {
min: 1,
max: 31
};
const monthOptions = {
min: 1,
max: 12,
aliases: {
jan: 1,
feb: 2,
mar: 3,
apr: 4,
may: 5,
jun: 6,
jul: 7,
aug: 8,
sep: 9,
oct: 10,
nov: 11,
dec: 12
}
};
const weekdayOptions = {
min: 0,
max: 6,
aliases: {
sun: 0,
mon: 1,
tue: 2,
wed: 3,
thu: 4,
fri: 5,
sat: 6
}
};
const parseSegment = (input, options) => {
const capacity = options.max - options.min + 1;
const values = new Set();
const fields = input.split(",");
for (const field of fields) {
const [raw, step] = splitStep(field);
if (raw === "*" && step === undefined) {
return Either.right(new Set());
}
if (step !== undefined) {
if (!Number.isInteger(step)) {
return Either.left(new ParseError({
message: `Expected step value to be a positive integer`,
input
}));
}
if (step < 1) {
return Either.left(new ParseError({
message: `Expected step value to be greater than 0`,
input
}));
}
if (step > options.max) {
return Either.left(new ParseError({
message: `Expected step value to be less than ${options.max}`,
input
}));
}
}
if (raw === "*") {
for (let i = options.min; i <= options.max; i += step ?? 1) {
values.add(i);
}
} else {
const [left, right] = splitRange(raw, options.aliases);
if (!Number.isInteger(left)) {
return Either.left(new ParseError({
message: `Expected a positive integer`,
input
}));
}
if (left < options.min || left > options.max) {
return Either.left(new ParseError({
message: `Expected a value between ${options.min} and ${options.max}`,
input
}));
}
if (right === undefined) {
values.add(left);
} else {
if (!Number.isInteger(right)) {
return Either.left(new ParseError({
message: `Expected a positive integer`,
input
}));
}
if (right < options.min || right > options.max) {
return Either.left(new ParseError({
message: `Expected a value between ${options.min} and ${options.max}`,
input
}));
}
if (left > right) {
return Either.left(new ParseError({
message: `Invalid value range`,
input
}));
}
for (let i = left; i <= right; i += step ?? 1) {
values.add(i);
}
}
}
if (values.size >= capacity) {
return Either.right(new Set());
}
}
return Either.right(values);
};
const splitStep = input => {
const seperator = input.indexOf("/");
if (seperator !== -1) {
return [input.slice(0, seperator), Number(input.slice(seperator + 1))];
}
return [input, undefined];
};
const splitRange = (input, aliases) => {
const seperator = input.indexOf("-");
if (seperator !== -1) {
return [aliasOrValue(input.slice(0, seperator), aliases), aliasOrValue(input.slice(seperator + 1), aliases)];
}
return [aliasOrValue(input, aliases), undefined];
};
function aliasOrValue(field, aliases) {
return aliases?.[field.toLocaleLowerCase()] ?? Number(field);
}
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