feat: Add Outlook Trigger Node (#8656)

Co-authored-by: Jonathan Bennetts <jonathan.bennetts@gmail.com>

packages/nodes-base/nodes/Microsoft/Outlook/MicrosoftOutlookTrigger.node.ts

@@ -0,0 +1,97 @@
+import type {
+	IPollFunctions,
+	INodeExecutionData,
+	INodeType,
+	INodeTypeDescription,
+} from 'n8n-workflow';
+
+import { DateTime } from 'luxon';
+
+import { properties as messageProperties } from './trigger/MessageDescription';
+
+import { getPollResponse } from './trigger/GenericFunctions';
+import { loadOptions } from './v2/methods';
+
+export class MicrosoftOutlookTrigger implements INodeType {
+	description: INodeTypeDescription = {
+		displayName: 'Microsoft Outlook Trigger',
+		name: 'microsoftOutlookTrigger',
+		icon: 'file:outlook.svg',
+		group: ['trigger'],
+		version: 1,
+		description:
+			'Fetches emails from Microsoft Outlook and starts the workflow on specified polling intervals.',
+		subtitle: '={{"Microsoft Outlook Trigger"}}',
+		defaults: {
+			name: 'Microsoft Outlook Trigger',
+		},
+		credentials: [
+			{
+				name: 'microsoftOutlookOAuth2Api',
+				required: true,
+			},
+		],
+		polling: true,
+		inputs: [],
+		outputs: ['main'],
+		properties: [
+			{
+				displayName: 'Event',
+				name: 'event',
+				type: 'options',
+				default: 'messageReceived',
+				options: [
+					{
+						name: 'Message Received',
+						value: 'messageReceived',
+					},
+				],
+			},
+			...messageProperties,
+		],
+	};
+
+	methods = { loadOptions };
+
+	async poll(this: IPollFunctions): Promise<INodeExecutionData[][] | null> {
+		const webhookData = this.getWorkflowStaticData('node');
+		let responseData;
+
+		const now = DateTime.now().toISO();
+		const startDate = (webhookData.lastTimeChecked as string) || now;
+		const endDate = now;
+		try {
+			const pollStartDate = startDate;
+			const pollEndDate = endDate;
+
+			responseData = await getPollResponse.call(this, pollStartDate, pollEndDate);
+
+			if (!responseData?.length) {
+				webhookData.lastTimeChecked = endDate;
+				return null;
+			}
+		} catch (error) {
+			if (this.getMode() === 'manual' || !webhookData.lastTimeChecked) {
+				throw error;
+			}
+			const workflow = this.getWorkflow();
+			const node = this.getNode();
+			this.logger.error(
+				`There was a problem in '${node.name}' node in workflow '${workflow.id}': '${error.description}'`,
+				{
+					node: node.name,
+					workflowId: workflow.id,
+					error,
+				},
+			);
+		}
+
+		webhookData.lastTimeChecked = endDate;
+
+		if (Array.isArray(responseData) && responseData.length) {
+			return [responseData];
+		}
+
+		return null;
+	}
+}