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510 lines
12 KiB
TypeScript
510 lines
12 KiB
TypeScript
import { sendAt } from 'cron';
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import moment from 'moment-timezone';
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import type {
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ITriggerFunctions,
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INodeType,
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INodeTypeDescription,
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ITriggerResponse,
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Cron,
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} from 'n8n-workflow';
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import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
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import {
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intervalToRecurrence,
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recurrenceCheck,
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toCronExpression,
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validateInterval,
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} from './GenericFunctions';
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import type { IRecurrenceRule, Rule } from './SchedulerInterface';
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export class ScheduleTrigger implements INodeType {
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description: INodeTypeDescription = {
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displayName: 'Schedule Trigger',
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name: 'scheduleTrigger',
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icon: 'fa:clock',
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group: ['trigger', 'schedule'],
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version: [1, 1.1, 1.2, 1.3],
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description: 'Triggers the workflow on a given schedule',
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eventTriggerDescription: '',
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activationMessage:
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'Your schedule trigger will now trigger executions on the schedule you have defined.',
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defaults: {
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name: 'Schedule Trigger',
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color: '#31C49F',
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},
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inputs: [],
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outputs: [NodeConnectionTypes.Main],
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properties: [
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{
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displayName:
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"This workflow will run on the schedule you define here once you publish it.<br><br>For testing, you can also trigger it manually: by going back to the canvas and clicking 'execute workflow'",
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name: 'notice',
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type: 'notice',
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default: '',
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},
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{
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displayName: 'Trigger Rules',
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name: 'rule',
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placeholder: 'Add Rule',
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type: 'fixedCollection',
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typeOptions: {
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multipleValues: true,
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},
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default: {
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interval: [
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{
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field: 'days',
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},
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],
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},
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options: [
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{
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name: 'interval',
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displayName: 'Trigger Interval',
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builderHint: {
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message:
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'You can add multiple intervals to trigger at different times. Use "Custom (Cron)" for more specific scheduling patterns.',
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},
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values: [
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{
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displayName: 'Trigger Interval',
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name: 'field',
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type: 'options',
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default: 'days',
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// eslint-disable-next-line n8n-nodes-base/node-param-options-type-unsorted-items
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options: [
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{
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name: 'Seconds',
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value: 'seconds',
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},
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{
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name: 'Minutes',
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value: 'minutes',
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},
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{
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name: 'Hours',
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value: 'hours',
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},
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{
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name: 'Days',
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value: 'days',
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},
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{
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name: 'Weeks',
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value: 'weeks',
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},
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{
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name: 'Months',
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value: 'months',
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},
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{
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name: 'Custom (Cron)',
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value: 'cronExpression',
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},
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],
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},
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{
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displayName: 'Seconds Between Triggers',
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name: 'secondsInterval',
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type: 'number',
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default: 30,
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displayOptions: {
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show: {
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field: ['seconds'],
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},
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},
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description: 'Number of seconds between each workflow trigger',
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hint: 'Must be in range 1-59',
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},
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{
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displayName: 'Minutes Between Triggers',
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name: 'minutesInterval',
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type: 'number',
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default: 5,
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displayOptions: {
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show: {
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field: ['minutes'],
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},
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},
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description: 'Number of minutes between each workflow trigger',
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hint: 'Must be in range 1-59',
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},
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{
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displayName: 'Hours Between Triggers',
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name: 'hoursInterval',
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type: 'number',
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displayOptions: {
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show: {
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field: ['hours'],
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},
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},
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default: 1,
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description: 'Number of hours between each workflow trigger',
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hint: 'Must be in range 1-23',
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},
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{
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displayName: 'Days Between Triggers',
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name: 'daysInterval',
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type: 'number',
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displayOptions: {
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show: {
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field: ['days'],
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},
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},
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default: 1,
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description: 'Number of days between each workflow trigger',
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hint: 'Must be in range 1-31',
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},
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{
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displayName: 'Weeks Between Triggers',
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name: 'weeksInterval',
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type: 'number',
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displayOptions: {
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show: {
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field: ['weeks'],
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},
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},
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default: 1,
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description: 'Would run every week unless specified otherwise',
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},
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{
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displayName: 'Months Between Triggers',
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name: 'monthsInterval',
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type: 'number',
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displayOptions: {
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show: {
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field: ['months'],
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},
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},
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default: 1,
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description: 'Would run every month unless specified otherwise',
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},
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{
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displayName: 'Trigger at Day of Month',
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name: 'triggerAtDayOfMonth',
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type: 'number',
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displayOptions: {
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show: {
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field: ['months'],
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},
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},
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typeOptions: {
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minValue: 1,
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maxValue: 31,
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},
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default: 1,
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description: 'The day of the month to trigger (1-31)',
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hint: 'If a month doesn’t have this day, the node won’t trigger',
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},
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{
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displayName: 'Trigger on Weekdays',
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name: 'triggerAtDay',
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type: 'multiOptions',
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displayOptions: {
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show: {
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field: ['weeks'],
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},
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},
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typeOptions: {
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maxValue: 7,
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},
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options: [
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{
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name: 'Monday',
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value: 1,
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},
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{
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name: 'Tuesday',
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value: 2,
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},
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{
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name: 'Wednesday',
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value: 3,
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},
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{
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name: 'Thursday',
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value: 4,
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},
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{
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name: 'Friday',
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value: 5,
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},
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{
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name: 'Saturday',
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value: 6,
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},
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{
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name: 'Sunday',
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value: 0,
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},
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],
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default: [0],
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},
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{
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displayName: 'Trigger at Hour',
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name: 'triggerAtHour',
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type: 'options',
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default: 0,
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displayOptions: {
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show: {
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field: ['days', 'weeks', 'months'],
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},
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},
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options: [
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{
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name: 'Midnight',
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displayName: 'Midnight',
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value: 0,
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},
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{
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name: '1am',
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displayName: '1am',
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value: 1,
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},
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{
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name: '2am',
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displayName: '2am',
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value: 2,
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},
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{
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name: '3am',
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displayName: '3am',
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value: 3,
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},
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{
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name: '4am',
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displayName: '4am',
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value: 4,
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},
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{
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name: '5am',
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displayName: '5am',
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value: 5,
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},
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{
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name: '6am',
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displayName: '6am',
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value: 6,
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},
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{
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name: '7am',
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displayName: '7am',
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value: 7,
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},
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{
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name: '8am',
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displayName: '8am',
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value: 8,
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},
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{
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name: '9am',
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displayName: '9am',
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value: 9,
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},
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{
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name: '10am',
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displayName: '10am',
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value: 10,
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},
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{
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name: '11am',
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displayName: '11am',
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value: 11,
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},
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{
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name: 'Noon',
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displayName: 'Noon',
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value: 12,
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},
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{
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name: '1pm',
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displayName: '1pm',
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value: 13,
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},
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{
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name: '2pm',
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displayName: '2pm',
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value: 14,
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},
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{
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name: '3pm',
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displayName: '3pm',
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value: 15,
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},
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{
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name: '4pm',
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displayName: '4pm',
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value: 16,
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},
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{
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name: '5pm',
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displayName: '5pm',
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value: 17,
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},
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{
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name: '6pm',
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displayName: '6pm',
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value: 18,
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},
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{
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name: '7pm',
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displayName: '7pm',
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value: 19,
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},
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{
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name: '8pm',
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displayName: '8pm',
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value: 20,
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},
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{
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name: '9pm',
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displayName: '9pm',
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value: 21,
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},
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{
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name: '10pm',
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displayName: '10pm',
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value: 22,
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},
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{
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name: '11pm',
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displayName: '11pm',
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value: 23,
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},
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],
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description: 'The hour of the day to trigger',
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},
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{
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displayName: 'Trigger at Minute',
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name: 'triggerAtMinute',
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type: 'number',
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default: 0,
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displayOptions: {
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show: {
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field: ['hours', 'days', 'weeks', 'months'],
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},
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},
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typeOptions: {
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minValue: 0,
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maxValue: 59,
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},
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description: 'The minute past the hour to trigger (0-59)',
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},
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{
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displayName:
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'You can find help generating your cron expression <a href="https://crontab.guru/examples.html" target="_blank">here</a>',
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name: 'notice',
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type: 'notice',
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displayOptions: {
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show: {
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field: ['cronExpression'],
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},
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},
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default: '',
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},
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{
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displayName: 'Expression',
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name: 'expression',
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type: 'string',
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default: '',
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placeholder: 'eg. 0 15 * 1 sun',
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displayOptions: {
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show: {
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field: ['cronExpression'],
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},
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},
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hint: 'Format: [Second] [Minute] [Hour] [Day of Month] [Month] [Day of Week]',
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},
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],
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},
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],
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},
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],
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};
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async trigger(this: ITriggerFunctions): Promise<ITriggerResponse> {
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const version = this.getNode().typeVersion;
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const { interval: intervals } = this.getNodeParameter('rule', []) as Rule;
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const timezone = this.getTimezone();
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const staticData = this.getWorkflowStaticData('node') as {
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recurrenceRules: number[];
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};
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if (!staticData.recurrenceRules) {
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staticData.recurrenceRules = [];
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}
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if (version >= 1.3) {
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for (let i = 0; i < intervals.length; i++) {
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validateInterval(this.getNode(), i, intervals[i]);
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}
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}
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const executeTrigger = (recurrence: IRecurrenceRule) => {
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const shouldTrigger = recurrenceCheck(recurrence, staticData.recurrenceRules, timezone);
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if (!shouldTrigger) return;
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const momentTz = moment.tz(timezone);
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const resultData = {
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timestamp: momentTz.toISOString(true),
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'Readable date': momentTz.format('MMMM Do YYYY, h:mm:ss a'),
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'Readable time': momentTz.format('h:mm:ss a'),
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'Day of week': momentTz.format('dddd'),
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Year: momentTz.format('YYYY'),
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Month: momentTz.format('MMMM'),
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'Day of month': momentTz.format('DD'),
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Hour: momentTz.format('HH'),
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Minute: momentTz.format('mm'),
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Second: momentTz.format('ss'),
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Timezone: `${timezone} (UTC${momentTz.format('Z')})`,
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};
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this.emit([this.helpers.returnJsonArray([resultData])]);
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};
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const rules = intervals.map((interval, i) => ({
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interval,
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cronExpression: toCronExpression(interval),
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recurrence: intervalToRecurrence(interval, i),
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}));
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if (this.getMode() !== 'manual') {
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for (const { interval, cronExpression, recurrence } of rules) {
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try {
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const cron: Cron = {
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expression: cronExpression,
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recurrence,
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};
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this.helpers.registerCron(cron, () => executeTrigger(recurrence));
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} catch (error) {
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if (interval.field === 'cronExpression') {
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throw new NodeOperationError(this.getNode(), 'Invalid cron expression', {
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description: 'More information on how to build them at https://crontab.guru/',
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});
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} else {
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throw error;
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}
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}
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}
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return {};
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} else {
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const manualTriggerFunction = async () => {
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const { interval, cronExpression, recurrence } = rules[0];
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if (interval.field === 'cronExpression') {
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try {
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sendAt(cronExpression);
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} catch (error) {
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throw new NodeOperationError(this.getNode(), 'Invalid cron expression', {
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description: 'More information on how to build them at https://crontab.guru/',
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});
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}
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}
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executeTrigger(recurrence);
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};
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return { manualTriggerFunction };
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}
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}
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}
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