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import type ICalEvent from './event.ts';
import {
addOrGetCustomAttributes,
formatDate,
escape,
generateCustomAttributes,
checkDate,
toDurationString,
toJSON,
checkNameAndMail
} from './tools.ts';
import { type ICalDateTimeValue } from './types.ts';
import ICalAttendee, { type ICalAttendeeData } from './attendee.ts';
export enum ICalAlarmType {
display = 'display',
audio = 'audio',
email = 'email'
}
export const ICalAlarmRelatesTo = {
end: 'END',
start: 'START'
} as const;
export type ICalAlarmRelatesTo = typeof ICalAlarmRelatesTo[keyof typeof ICalAlarmRelatesTo];
export type ICalAlarmTypeValue = keyof ICalAlarmType;
export interface ICalAttachment {
uri: string;
mime: string | null;
}
export type ICalAlarmData = ICalAlarmBaseData |
ICalAlarmTriggerData |
ICalAlarmTriggerAfterData |
ICalAlarmTriggerBeforeData;
export type ICalAlarmTriggerData = ICalAlarmBaseData & { trigger: number | ICalDateTimeValue };
export type ICalAlarmTriggerAfterData = ICalAlarmBaseData & { triggerAfter: number | ICalDateTimeValue };
export type ICalAlarmTriggerBeforeData = ICalAlarmBaseData & { triggerBefore: number | ICalDateTimeValue };
export interface ICalAlarmBaseData {
type?: ICalAlarmType;
relatesTo?: ICalAlarmRelatesTo | null;
repeat?: ICalAlarmRepeatData | null;
attach?: string | ICalAttachment | null;
description?: string | null;
summary?: string | null;
attendees?: ICalAttendee[] | ICalAttendeeData[];
x?: {key: string, value: string}[] | [string, string][] | Record<string, string>;
}
export interface ICalAlarmRepeatData {
times: number;
interval: number;
}
interface ICalInternalAlarmData {
type: ICalAlarmType;
trigger: ICalDateTimeValue | number;
relatesTo: ICalAlarmRelatesTo | null;
repeat: ICalAlarmRepeatData | null;
interval: number | null;
attach: ICalAttachment | null;
description: string | null;
summary: string | null;
attendees: ICalAttendee[];
x: [string, string][];
}
export interface ICalAlarmJSONData {
type: ICalAlarmType;
trigger: string | number;
relatesTo: ICalAlarmRelatesTo | null;
repeat: ICalAlarmRepeatData | null;
interval: number | null;
attach: ICalAttachment | null;
description: string | null;
summary: string | null;
attendees: ICalAttendee[];
x: {key: string, value: string}[];
}
/**
* Usually you get an {@link ICalAlarm} object like this:
*
* ```javascript
* import ical from 'ical-generator';
* const calendar = ical();
* const event = calendar.createEvent();
* const alarm = event.createAlarm();
* ```
*
* You can also use the {@link ICalAlarm} object directly:
*
* ```javascript
* import ical, {ICalAlarm} from 'ical-generator';
* const alarm = new ICalAlarm();
* event.alarms([alarm]);
* ```
*/
export default class ICalAlarm {
private readonly data: ICalInternalAlarmData;
private readonly event: ICalEvent;
/**
* Constructor of {@link ICalAttendee}. The event reference is required
* to query the calendar's timezone and summary when required.
*
* @param data Alarm Data
* @param event Reference to ICalEvent object
*/
constructor (data: ICalAlarmData, event: ICalEvent) {
this.data = {
type: ICalAlarmType.display,
trigger: -600,
relatesTo: null,
repeat: null,
interval: null,
attach: null,
description: null,
summary: null,
attendees: [],
x: []
};
this.event = event;
if (!event) {
throw new Error('`event` option required!');
}
if (data.type !== undefined) this.type(data.type);
if ('trigger' in data && data.trigger !== undefined) this.trigger(data.trigger);
if ('triggerBefore' in data && data.triggerBefore !== undefined) this.triggerBefore(data.triggerBefore);
if ('triggerAfter' in data && data.triggerAfter !== undefined) this.triggerAfter(data.triggerAfter);
if (data.repeat) this.repeat(data.repeat);
if (data.attach !== undefined) this.attach(data.attach);
if (data.description !== undefined) this.description(data.description);
if (data.summary !== undefined) this.summary(data.summary);
if (data.attendees !== undefined) this.attendees(data.attendees);
if (data.x !== undefined) this.x(data.x);
}
/**
* Get the alarm type
* @since 0.2.1
*/
type (type: ICalAlarmType): this;
/**
* Set the alarm type. See {@link ICalAlarmType}
* for available status options.
* @since 0.2.1
*/
type (): ICalAlarmType;
type (type?: ICalAlarmType): this | ICalAlarmType {
if (type === undefined) {
return this.data.type;
}
if (!type || !Object.keys(ICalAlarmType).includes(type)) {
throw new Error('`type` is not correct, must be either `display` or `audio`!');
}
this.data.type = type;
return this;
}
/**
* Get the trigger time for the alarm. Can either
* be a date and time value ({@link ICalDateTimeValue}) or
* a number, which will represent the seconds between
* alarm and event start. The number is negative, if the
* alarm is triggered after the event started.
*
* @since 0.2.1
*/
trigger (): number | ICalDateTimeValue;
/**
* Use this method to set the alarm time.
*
* ```javascript
* const cal = ical();
* const event = cal.createEvent();
* const alarm = cal.createAlarm();
*
* alarm.trigger(600); // -> 10 minutes before event starts
* alarm.trigger(new Date()); // -> now
* ```
*
* You can use any supported date object, see
* [readme](https://github.com/sebbo2002/ical-generator#-date-time--timezones)
* for details about supported values and timezone handling.
*
* @since 0.2.1
*/
trigger (trigger: number | ICalDateTimeValue | Date): this;
trigger (trigger?: number | ICalDateTimeValue | Date): this | number | ICalDateTimeValue {
// Getter
if (trigger === undefined && typeof this.data.trigger === 'number') {
return -1 * this.data.trigger;
}
if (trigger === undefined) {
return this.data.trigger;
}
// Setter
if (typeof trigger === 'number' && isFinite(trigger)) {
this.data.trigger = -1 * trigger;
}
else if(!trigger || typeof trigger === 'number') {
throw new Error('`trigger` is not correct, must be a finite number or a supported date!');
}
else {
this.data.trigger = checkDate(trigger, 'trigger');
}
return this;
}
/**
* Get to which time alarm trigger relates to.
* Can be either `START` or `END`. If the value is
* `START` the alarm is triggerd relative to the event start time.
* If the value is `END` the alarm is triggerd relative to the event end time
*
* @since 4.0.1
*/
relatesTo(): ICalAlarmRelatesTo | null;
/**
* Use this method to set to which time alarm trigger relates to.
* Works only if trigger is a `number`
*
* ```javascript
* const cal = ical();
* const event = cal.createEvent();
* const alarm = cal.createAlarm();
*
* alarm.trigger(600); // -> 10 minutes before event starts
*
* alarm.relatesTo('START'); // -> 10 minutes before event starts
* alarm.relatesTo('END'); // -> 10 minutes before event ends
*
* alarm.trigger(-600); // -> 10 minutes after event starts
*
* alarm.relatesTo('START'); // -> 10 minutes after event starts
* alarm.relatesTo('END'); // -> 10 minutes after event ends
* ```
* @since 4.0.1
*/
relatesTo(relatesTo: ICalAlarmRelatesTo | null): this;
relatesTo(relatesTo?: ICalAlarmRelatesTo | null): this | ICalAlarmRelatesTo | null {
if (relatesTo === undefined) {
return this.data.relatesTo;
}
if (!relatesTo) {
this.data.relatesTo = null;
return this;
}
if (!Object.values(ICalAlarmRelatesTo).includes(relatesTo)) {
throw new Error('`relatesTo` is not correct, must be either `START` or `END`!');
}
this.data.relatesTo = relatesTo;
return this;
}
/**
* Get the trigger time for the alarm. Can either
* be a date and time value ({@link ICalDateTimeValue}) or
* a number, which will represent the seconds between
* alarm and event start. The number is negative, if the
* alarm is triggered before the event started.
*
* @since 0.2.1
*/
triggerAfter (): number | ICalDateTimeValue;
/**
* Use this method to set the alarm time. Unlike `trigger`, this time
* the alarm takes place after the event has started.
*
* ```javascript
* const cal = ical();
* const event = cal.createEvent();
* const alarm = cal.createAlarm();
*
* alarm.trigger(600); // -> 10 minutes after event starts
* ```
*
* You can use any supported date object, see
* [readme](https://github.com/sebbo2002/ical-generator#-date-time--timezones)
* for details about supported values and timezone handling.
*
* @since 0.2.1
*/
triggerAfter (trigger: number | ICalDateTimeValue): this;
triggerAfter (trigger?: number | ICalDateTimeValue): this | number | ICalDateTimeValue {
if (trigger === undefined) {
return this.data.trigger;
}
return this.trigger(typeof trigger === 'number' ? -1 * trigger : trigger);
}
/**
* Get the trigger time for the alarm. Can either
* be a date and time value ({@link ICalDateTimeValue}) or
* a number, which will represent the seconds between
* alarm and event start. The number is negative, if the
* alarm is triggered after the event started.
*
* @since 0.2.1
* @see {@link trigger}
* @see {@link triggerAfter}
*/
triggerBefore (trigger: number | ICalDateTimeValue): this;
/**
* Use this method to set the alarm time.
*
* ```javascript
* const cal = ical();
* const event = cal.createEvent();
* const alarm = cal.createAlarm();
*
* alarm.trigger(600); // -> 10 minutes before event starts
* alarm.trigger(new Date()); // -> now
* ```
*
* You can use any supported date object, see
* [readme](https://github.com/sebbo2002/ical-generator#-date-time--timezones)
* for details about supported values and timezone handling.
*
* @since 0.2.1
* @see {@link trigger}
* @see {@link triggerAfter}
*/
triggerBefore (): number | ICalDateTimeValue;
triggerBefore (trigger?: number | ICalDateTimeValue): this | number | ICalDateTimeValue {
if(trigger === undefined) {
return this.trigger();
}
return this.trigger(trigger);
}
/**
* Get Alarm Repetitions
* @since 0.2.1
*/
repeat(): ICalAlarmRepeatData | null;
/**
* Set Alarm Repetitions. Use this to repeat the alarm.
*
* ```javascript
* const cal = ical();
* const event = cal.createEvent();
*
* // repeat the alarm 4 times every 5 minutes…
* cal.createAlarm({
* repeat: {
* times: 4,
* interval: 300
* }
* });
* ```
*
* @since 0.2.1
*/
repeat(repeat: ICalAlarmRepeatData | null): this;
repeat (repeat?: ICalAlarmRepeatData | null): this | ICalAlarmRepeatData | null {
if (repeat === undefined) {
return this.data.repeat;
}
if (!repeat) {
this.data.repeat = null;
return this;
}
if (typeof repeat !== 'object') {
throw new Error('`repeat` is not correct, must be an object!');
}
if (typeof repeat.times !== 'number' || !isFinite(repeat.times)) {
throw new Error('`repeat.times` is not correct, must be numeric!');
}
if (typeof repeat.interval !== 'number' || !isFinite(repeat.interval)) {
throw new Error('`repeat.interval` is not correct, must be numeric!');
}
this.data.repeat = repeat;
return this;
}
/**
* Get Attachment
* @since 0.2.1
*/
attach (): {uri: string, mime: string | null} | null;
/**
* Set Alarm attachment. Used to set the alarm sound
* if alarm type is audio. Defaults to "Basso".
*
* ```javascript
* const cal = ical();
* const event = cal.createEvent();
*
* event.createAlarm({
* attach: 'https://example.com/notification.aud'
* });
*
* // OR
*
* event.createAlarm({
* attach: {
* uri: 'https://example.com/notification.aud',
* mime: 'audio/basic'
* }
* });
* ```
*
* @since 0.2.1
*/
attach (attachment: {uri: string, mime?: string | null} | string | null): this;
attach (attachment?: {uri: string, mime?: string | null} | string | null): this | {uri: string, mime: string | null} | null {
if (attachment === undefined) {
return this.data.attach;
}
if (!attachment) {
this.data.attach = null;
return this;
}
let _attach = null;
if (typeof attachment === 'string') {
_attach = {
uri: attachment,
mime: null
};
}
else if (typeof attachment === 'object') {
_attach = {
uri: attachment.uri,
mime: attachment.mime || null
};
}
else {
throw new Error(
'`attachment` needs to be a valid formed string or an object. See https://sebbo2002.github.io/' +
'ical-generator/develop/reference/classes/ICalAlarm.html#attach'
);
}
if (!_attach.uri) {
throw new Error('`attach.uri` is empty!');
}
this.data.attach = {
uri: _attach.uri,
mime: _attach.mime
};
return this;
}
/**
* Get the alarm description. Used to set the alarm message
* if alarm type is `display`. If the alarm type is `email`, it's
* used to set the email body. Defaults to the event's summary.
*
* @since 0.2.1
*/
description (): string | null;
/**
* Set the alarm description. Used to set the alarm message
* if alarm type is `display`. If the alarm type is `email`, it's
* used to set the email body. Defaults to the event's summary.
*
* @since 0.2.1
*/
description (description: string | null): this;
description (description?: string | null): this | string | null {
if (description === undefined) {
return this.data.description;
}
if (!description) {
this.data.description = null;
return this;
}
this.data.description = description;
return this;
}
/**
* Get the alarm summary. Used to set the email subject
* if alarm type is `email`. Defaults to the event's summary.
*
* @since 7.0.0
*/
summary (): string | null;
/**
* Set the alarm summary. Used to set the email subject
* if alarm type is display. Defaults to the event's summary.
*
* @since 0.2.1
*/
summary (summary: string | null): this;
summary (summary?: string | null): this | string | null {
if (summary === undefined) {
return this.data.summary;
}
if (!summary) {
this.data.summary = null;
return this;
}
this.data.summary = summary;
return this;
}
/**
* Creates a new {@link ICalAttendee} and returns it. Use options to prefill
* the attendee's attributes. Calling this method without options will create
* an empty attendee.
*
* @since 7.0.0
*/
createAttendee(data: ICalAttendee | ICalAttendeeData | string): ICalAttendee {
if (data instanceof ICalAttendee) {
this.data.attendees.push(data);
return data;
}
if (typeof data === 'string') {
data = { email: data, ...checkNameAndMail('data', data) };
}
const attendee = new ICalAttendee(data, this);
this.data.attendees.push(attendee);
return attendee;
}
/**
* Get all attendees
* @since 7.0.0
*/
attendees(): ICalAttendee[];
/**
* Add multiple attendees to your event
*
* @since 7.0.0
*/
attendees(attendees: (ICalAttendee | ICalAttendeeData | string)[]): this;
attendees(attendees?: (ICalAttendee | ICalAttendeeData | string)[]): this | ICalAttendee[] {
if (!attendees) {
return this.data.attendees;
}
attendees.forEach(attendee => this.createAttendee(attendee));
return this;
}
/**
* Set X-* attributes. Woun't filter double attributes,
* which are also added by another method (e.g. type),
* so these attributes may be inserted twice.
*
* ```javascript
* alarm.x([
* {
* key: "X-MY-CUSTOM-ATTR",
* value: "1337!"
* }
* ]);
*
* alarm.x([
* ["X-MY-CUSTOM-ATTR", "1337!"]
* ]);
*
* alarm.x({
* "X-MY-CUSTOM-ATTR": "1337!"
* });
* ```
*
* @since 1.9.0
*/
x (keyOrArray: {key: string, value: string}[] | [string, string][] | Record<string, string>): this;
/**
* Set a X-* attribute. Woun't filter double attributes,
* which are also added by another method (e.g. type),
* so these attributes may be inserted twice.
*
* ```javascript
* alarm.x("X-MY-CUSTOM-ATTR", "1337!");
* ```
*
* @since 1.9.0
*/
x (keyOrArray: string, value: string): this;
/**
* Get all custom X-* attributes.
* @since 1.9.0
*/
x (): {key: string, value: string}[];
x (keyOrArray?: ({key: string, value: string})[] | [string, string][] | Record<string, string> | string, value?: string): this | void | ({key: string, value: string})[] {
if(keyOrArray === undefined) {
return addOrGetCustomAttributes (this.data);
}
if(typeof keyOrArray === 'string' && typeof value === 'string') {
addOrGetCustomAttributes (this.data, keyOrArray, value);
}
else if(typeof keyOrArray === 'object') {
addOrGetCustomAttributes (this.data, keyOrArray);
}
else {
throw new Error('Either key or value is not a string!');
}
return this;
}
/**
* Return a shallow copy of the alarm's options for JSON stringification.
* Third party objects like moment.js values are stringified as well. Can
* be used for persistence.
*
* @since 0.2.4
*/
toJSON (): ICalAlarmJSONData {
const trigger = this.trigger();
return Object.assign({}, this.data, {
trigger: typeof trigger === 'number' ? trigger : toJSON(trigger),
x: this.x()
});
}
/**
* Return generated event as a string.
*
* ```javascript
* const alarm = event.createAlarm();
* console.log(alarm.toString()); // → BEGIN:VALARM…
* ```
*/
toString (): string {
let g = 'BEGIN:VALARM\r\n';
// ACTION
g += 'ACTION:' + this.data.type.toUpperCase() + '\r\n';
if (typeof this.data.trigger === 'number' && this.data.relatesTo === null) {
if (this.data.trigger > 0) {
g += 'TRIGGER;RELATED=END:' + toDurationString(this.data.trigger) + '\r\n';
}
else {
g += 'TRIGGER:' + toDurationString(this.data.trigger) + '\r\n';
}
}
else if (typeof this.data.trigger === 'number') {
g += 'TRIGGER;RELATED=' + this.data.relatesTo?.toUpperCase() + ':' + toDurationString(this.data.trigger) + '\r\n';
}
else {
g += 'TRIGGER;VALUE=DATE-TIME:' + formatDate(this.event.timezone(), this.data.trigger) + '\r\n';
}
// REPEAT
if (this.data.repeat) {
if (!this.data.repeat.times) {
throw new Error('No value for `repeat.times` in ICalAlarm given, but required for `interval`!');
}
if (!this.data.repeat.interval) {
throw new Error('No value for `repeat.interval` in ICalAlarm given, but required for `repeat`!');
}
g += 'REPEAT:' + this.data.repeat.times + '\r\n';
g += 'DURATION:' + toDurationString(this.data.repeat.interval) + '\r\n';
}
// ATTACH
if (this.data.type === 'audio' && this.data.attach && this.data.attach.mime) {
g += 'ATTACH;FMTTYPE=' + escape(this.data.attach.mime, false) + ':' + escape(this.data.attach.uri, false) + '\r\n';
}
else if (this.data.type === 'audio' && this.data.attach) {
g += 'ATTACH;VALUE=URI:' + escape(this.data.attach.uri, false) + '\r\n';
}
else if (this.data.type === 'audio') {
g += 'ATTACH;VALUE=URI:Basso\r\n';
}
// DESCRIPTION
if (this.data.type !== 'audio' && this.data.description) {
g += 'DESCRIPTION:' + escape(this.data.description, false) + '\r\n';
}
else if (this.data.type !== 'audio') {
g += 'DESCRIPTION:' + escape(this.event.summary(), false) + '\r\n';
}
// SUMMARY
if (this.data.type === 'email' && this.data.summary) {
g += 'SUMMARY:' + escape(this.data.summary, false) + '\r\n';
}
else if (this.data.type === 'email') {
g += 'SUMMARY:' + escape(this.event.summary(), false) + '\r\n';
}
// ATTENDEES
if (this.data.type === 'email') {
this.data.attendees.forEach(attendee => {
g += attendee.toString();
});
}
// CUSTOM X ATTRIBUTES
g += generateCustomAttributes(this.data);
g += 'END:VALARM\r\n';
return g;
}
}
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