From d0038812d7ab6b18d64602c0c5275e5d16029b61 Mon Sep 17 00:00:00 2001
From: agobrech <ael.gobrecht@gmail.com>
Date: Wed, 5 Apr 2023 17:25:27 +0200
Subject: [PATCH] Feat rounding operation

---
 .../nodes/DateTime/V2/DateTimeV2.node.ts      |  24 ++++
 .../DateTime/V2/FormatDateDescription.ts      |   3 +-
 .../nodes/DateTime/V2/RoundDateDescription.ts | 121 ++++++++++++++++++
 3 files changed, 147 insertions(+), 1 deletion(-)
 create mode 100644 packages/nodes-base/nodes/DateTime/V2/RoundDateDescription.ts

diff --git a/packages/nodes-base/nodes/DateTime/V2/DateTimeV2.node.ts b/packages/nodes-base/nodes/DateTime/V2/DateTimeV2.node.ts
index ff919520d8..6a2f13587e 100644
--- a/packages/nodes-base/nodes/DateTime/V2/DateTimeV2.node.ts
+++ b/packages/nodes-base/nodes/DateTime/V2/DateTimeV2.node.ts
@@ -15,6 +15,7 @@ import { CurrentDateDescription } from './CurrentDateDescription';
 import { AddToDateDescription } from './AddToDateDescription';
 import { SubtractFromDateDescription } from './SubtractFromDateDescription';
 import { FormatDateDescription } from './FormatDateDescription';
+import { RoundDateDescription } from './RoundDateDescription';
 
 export class DateTimeV2 implements INodeType {
 	description: INodeTypeDescription;
@@ -71,6 +72,7 @@ export class DateTimeV2 implements INodeType {
 				...AddToDateDescription,
 				...SubtractFromDateDescription,
 				...FormatDateDescription,
+				...RoundDateDescription,
 			],
 		};
 	}
@@ -155,6 +157,28 @@ export class DateTimeV2 implements INodeType {
 				} catch {
 					throw new NodeOperationError(this.getNode(), 'Invalid date format');
 				}
+			} else if (operation === 'roundDate') {
+				const date = this.getNodeParameter('date', i) as string;
+				const mode = this.getNodeParameter('mode', i) as string;
+				const outputFieldName = this.getNodeParameter('outputFieldName', i) as string;
+				try {
+					const momentDate = moment.tz(date, workflowTimezone);
+					if (mode === 'roundDown') {
+						const toNearest = this.getNodeParameter('toNearest', i) as string;
+						responseData.push({
+							[outputFieldName]: momentDate.startOf(toNearest as moment.unitOfTime.StartOf),
+						});
+					} else if (mode === 'roundUp') {
+						const to = this.getNodeParameter('to', i) as string;
+						responseData.push({
+							[outputFieldName]: momentDate
+								.add(1, to as moment.unitOfTime.DurationConstructor)
+								.startOf(to as moment.unitOfTime.StartOf),
+						});
+					}
+				} catch {
+					throw new NodeOperationError(this.getNode(), 'Invalid date format');
+				}
 			}
 			const executionData = this.helpers.constructExecutionMetaData(
 				this.helpers.returnJsonArray(responseData as IDataObject[]),
diff --git a/packages/nodes-base/nodes/DateTime/V2/FormatDateDescription.ts b/packages/nodes-base/nodes/DateTime/V2/FormatDateDescription.ts
index d9d80ed2da..3971664491 100644
--- a/packages/nodes-base/nodes/DateTime/V2/FormatDateDescription.ts
+++ b/packages/nodes-base/nodes/DateTime/V2/FormatDateDescription.ts
@@ -89,7 +89,8 @@ export const FormatDateDescription: INodeProperties[] = [
 			},
 		},
 		hint: 'List of special tokens <a target="_blank" href="https://moment.github.io/luxon/#/formatting?id=table-of-tokens">More info</a>',
-		default: 'yyyy-MM-dd',
+		default: '',
+		placeholder: 'yyyy-MM-dd',
 	},
 	{
 		displayName: 'Output Field Name',
diff --git a/packages/nodes-base/nodes/DateTime/V2/RoundDateDescription.ts b/packages/nodes-base/nodes/DateTime/V2/RoundDateDescription.ts
new file mode 100644
index 0000000000..8aaaf33619
--- /dev/null
+++ b/packages/nodes-base/nodes/DateTime/V2/RoundDateDescription.ts
@@ -0,0 +1,121 @@
+import type { INodeProperties } from 'n8n-workflow';
+
+export const RoundDateDescription: INodeProperties[] = [
+	{
+		displayName:
+			"You can also do this using an expression, e.g. <code>{{ your_date.endOfMonth() }}</code>. <a target='_blank' href='https://docs.n8n.io/code-examples/expressions/luxon/'>More info</a>",
+		name: 'notice',
+		type: 'notice',
+		default: '',
+		displayOptions: {
+			show: {
+				operation: ['roundDate'],
+			},
+		},
+	},
+	{
+		displayName: 'Date',
+		name: 'date',
+		type: 'string',
+		description: 'The date that you want to round',
+		default: '',
+		displayOptions: {
+			show: {
+				operation: ['roundDate'],
+			},
+		},
+	},
+	{
+		displayName: 'Mode',
+		name: 'mode',
+		type: 'options',
+		options: [
+			{
+				name: 'Round Down',
+				value: 'roundDown',
+			},
+			{
+				name: 'Round Up',
+				value: 'roundUp',
+			},
+		],
+		default: 'roundDown',
+		displayOptions: {
+			show: {
+				operation: ['roundDate'],
+			},
+		},
+	},
+	{
+		displayName: 'To Nearest',
+		name: 'toNearest',
+		type: 'options',
+		options: [
+			{
+				name: 'Day',
+				value: 'day',
+			},
+			{
+				name: 'Hour',
+				value: 'hour',
+			},
+			{
+				name: 'Minute',
+				value: 'minute',
+			},
+			{
+				name: 'Month',
+				value: 'month',
+			},
+			{
+				name: 'Second',
+				value: 'second',
+			},
+			{
+				name: 'Week',
+				value: 'week',
+			},
+			{
+				name: 'Year',
+				value: 'year',
+			},
+		],
+		default: 'month',
+		displayOptions: {
+			show: {
+				operation: ['roundDate'],
+				mode: ['roundDown'],
+			},
+		},
+	},
+	{
+		displayName: 'To',
+		name: 'to',
+		type: 'options',
+		options: [
+			{
+				name: 'End of Month',
+				value: 'month',
+			},
+		],
+		default: 'month',
+		displayOptions: {
+			show: {
+				operation: ['roundDate'],
+				mode: ['roundUp'],
+			},
+		},
+	},
+	{
+		displayName: 'Output Field Name',
+		name: 'outputFieldName',
+		type: 'string',
+		default: 'roundedDate',
+		description: 'Name of the field to put the output in',
+		displayOptions: {
+			show: {
+				operation: ['roundDate'],
+			},
+		},
+	},
+];