n8n/packages/nodes-base/nodes/HelpScout/HelpScout.node.ts

import {
	IExecuteFunctions,
} from 'n8n-core';

import {
	IBinaryKeyData,
	IDataObject,
	ILoadOptionsFunctions,
	INodeExecutionData,
	INodePropertyOptions,
	INodeType,
	INodeTypeDescription,
} from 'n8n-workflow';

import {
	countriesCodes
} from './CountriesCodes';

import {
	conversationFields,
	conversationOperations,
} from './ConversationDescription';

import {
	customerFields,
	customerOperations,
} from './CustomerDescription';

import {
	ICustomer,
} from './CustomerInterface';

import {
	IConversation,
} from './ConversationInterface';

import {
	helpscoutApiRequest,
	helpscoutApiRequestAllItems,
} from './GenericFunctions';

import {
	mailboxFields,
	mailboxOperations,
} from './MailboxDescription';

import {
	threadFields,
	threadOperations,
} from './ThreadDescription';

import {
	IAttachment,
	IThread,
} from './ThreadInterface';


export class HelpScout implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'HelpScout',
		name: 'helpScout',
		icon: 'file:helpScout.png',
		group: ['input'],
		version: 1,
		subtitle: '={{$parameter["operation"] + ": " + $parameter["resource"]}}',
		description: 'Consume Help Scout API.',
		defaults: {
			name: 'HelpScout',
			color: '#1392ee',
		},
		inputs: ['main'],
		outputs: ['main'],
		credentials: [
			{
				name: 'helpScoutOAuth2Api',
				required: true,
			},
		],
		properties: [
			{
				displayName: 'Resource',
				name: 'resource',
				type: 'options',
				options: [
					{
						name: 'Conversation',
						value: 'conversation',
					},
					{
						name: 'Customer',
						value: 'customer',
					},
					{
						name: 'Mailbox',
						value: 'mailbox',
					},
					{
						name: 'Thread',
						value: 'thread',
					},
				],
				default: 'conversation',
				description: 'The resource to operate on.',
			},
			...conversationOperations,
			...conversationFields,
			...customerOperations,
			...customerFields,
			...mailboxOperations,
			...mailboxFields,
			...threadOperations,
			...threadFields,
		],
	};

	methods = {
		loadOptions: {
			// Get all the countries codes to display them to user so that he can
			// select them easily
			async getCountriesCodes(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				for (const countryCode of countriesCodes) {
					const countryCodeName = `${countryCode.name} - ${countryCode.alpha2}`;
					const countryCodeId = countryCode.alpha2;
					returnData.push({
						name: countryCodeName,
						value: countryCodeId,
					});
				}
				return returnData;
			},
			// Get all the tags to display them to user so that he can
			// select them easily
			async getTags(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const tags = await helpscoutApiRequestAllItems.call(this, '_embedded.tags', 'GET', '/v2/tags');
				for (const tag of tags) {
					const tagName = tag.name;
					const tagId = tag.id;
					returnData.push({
						name: tagName,
						value: tagId,
					});
				}
				return returnData;
			},
			// Get all the mailboxes to display them to user so that he can
			// select them easily
			async getMailboxes(this: ILoadOptionsFunctions): Promise<INodePropertyOptions[]> {
				const returnData: INodePropertyOptions[] = [];
				const mailboxes = await helpscoutApiRequestAllItems.call(this, '_embedded.mailboxes', 'GET', '/v2/mailboxes');
				for (const mailbox of mailboxes) {
					const mailboxName = mailbox.name;
					const mailboxId = mailbox.id;
					returnData.push({
						name: mailboxName,
						value: mailboxId,
					});
				}
				return returnData;
			},
		},
	};

	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
		const items = this.getInputData();
		const returnData: IDataObject[] = [];
		const length = items.length as unknown as number;
		const qs: IDataObject = {};
		let responseData;
		const resource = this.getNodeParameter('resource', 0) as string;
		const operation = this.getNodeParameter('operation', 0) as string;
		for (let i = 0; i < length; i++) {
			if (resource === 'conversation') {
				//https://developer.helpscout.com/mailbox-api/endpoints/conversations/create
				if (operation === 'create') {
					const mailboxId = this.getNodeParameter('mailboxId', i) as number;
					const status = this.getNodeParameter('status', i) as string;
					const subject = this.getNodeParameter('subject', i) as string;
					const type = this.getNodeParameter('type', i) as string;
					const resolveData = this.getNodeParameter('resolveData', i) as boolean;
					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
					const threads = (this.getNodeParameter('threadsUi', i) as IDataObject).threadsValues as IDataObject[];
					const body: IConversation = {
						mailboxId,
						status,
						subject,
						type,
					};
					Object.assign(body, additionalFields);
					if (additionalFields.customerId) {
						body.customer = {
							id: additionalFields.customerId,
						};
						//@ts-ignore
						delete body.customerId;
					}
					if (additionalFields.customerEmail) {
						body.customer = {
							email: additionalFields.customerEmail,
						};
						//@ts-ignore
						delete body.customerEmail;
					}
					if (body.customer === undefined) {
						throw new Error('Either customer email or customer ID must be set');
					}
					if (threads) {
						for (let i = 0; i < threads.length; i++) {
							if (threads[i].type === '' || threads[i].text === '') {
								throw new Error('Chat Threads cannot be empty');
							}
							if (threads[i].type !== 'note') {
								threads[i].customer = body.customer;
							}
						}
						body.threads = threads;
					}
					responseData = await helpscoutApiRequest.call(this, 'POST', '/v2/conversations', body, qs, undefined, { resolveWithFullResponse: true });
					const id = responseData.headers['resource-id'];
					const uri = responseData.headers.location;
					if (resolveData) {
						responseData = await helpscoutApiRequest.call(this, 'GET', '', {}, {}, uri);
					} else {
						responseData = {
							id,
							uri,
						};
					}
				}
				//https://developer.helpscout.com/mailbox-api/endpoints/conversations/delete
				if (operation === 'delete') {
					const conversationId = this.getNodeParameter('conversationId', i) as string;
					responseData = await helpscoutApiRequest.call(this, 'DELETE', `/v2/conversations/${conversationId}`);
					responseData = { success: true };
				}
				//https://developer.helpscout.com/mailbox-api/endpoints/conversations/get
				if (operation === 'get') {
					const conversationId = this.getNodeParameter('conversationId', i) as string;
					responseData = await helpscoutApiRequest.call(this, 'GET', `/v2/conversations/${conversationId}`);
				}
				//https://developer.helpscout.com/mailbox-api/endpoints/conversations/list
				if (operation === 'getAll') {
					const returnAll = this.getNodeParameter('returnAll', i) as boolean;
					const options = this.getNodeParameter('options', i) as IDataObject;
					Object.assign(qs, options);
					if (returnAll) {
						responseData = await helpscoutApiRequestAllItems.call(this, '_embedded.conversations', 'GET', '/v2/conversations', {}, qs);
					} else {
						qs.limit = this.getNodeParameter('limit', i) as number;
						responseData = await helpscoutApiRequestAllItems.call(this, '_embedded.conversations', 'GET', '/v2/conversations', {}, qs);
						responseData = responseData.splice(0, qs.limit);
					}
				}
			}
			if (resource === 'customer') {
				//https://developer.helpscout.com/mailbox-api/endpoints/customers/create
				if (operation === 'create') {
					const resolveData = this.getNodeParameter('resolveData', i) as boolean;
					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
					const chats = (this.getNodeParameter('chatsUi', i) as IDataObject).chatsValues as IDataObject[];
					const address = (this.getNodeParameter('addressUi', i) as IDataObject).addressValue as IDataObject;
					const emails = (this.getNodeParameter('emailsUi', i) as IDataObject).emailsValues as IDataObject[];
					const phones = (this.getNodeParameter('phonesUi', i) as IDataObject).phonesValues as IDataObject[];
					const socialProfiles = (this.getNodeParameter('socialProfilesUi', i) as IDataObject).socialProfilesValues as IDataObject[];
					const websites = (this.getNodeParameter('websitesUi', i) as IDataObject).websitesValues as IDataObject[];
					let body: ICustomer = {};
					body = Object.assign({}, additionalFields);
					if (body.age) {
						body.age = body.age.toString();
					}
					if (chats) {
						body.chats = chats;
					}
					if (address) {
						body.address = address;
						body.address.lines = [address.line1, address.line2];
					}
					if (emails) {
						body.emails = emails;
					}
					if (phones) {
						body.phones = phones;
					}
					if (socialProfiles) {
						body.socialProfiles = socialProfiles;
					}
					if (websites) {
						body.websites = websites;
					}
					if (Object.keys(body).length === 0) {
						throw new Error('You have to set at least one field');
					}
					responseData = await helpscoutApiRequest.call(this, 'POST', '/v2/customers', body, qs, undefined, { resolveWithFullResponse: true });
					const id = responseData.headers['resource-id'];
					const uri = responseData.headers.location;
					if (resolveData) {
						responseData = await helpscoutApiRequest.call(this, 'GET', '', {}, {}, uri);
					} else {
						responseData = {
							id,
							uri,
						};
					}
				}
				//https://developer.helpscout.com/mailbox-api/endpoints/customer_properties/list
				if (operation === 'properties') {
					responseData = await helpscoutApiRequestAllItems.call(this, '_embedded.customer-properties', 'GET', '/v2/customer-properties', {}, qs);
				}
				//https://developer.helpscout.com/mailbox-api/endpoints/customers/get
				if (operation === 'get') {
					const customerId = this.getNodeParameter('customerId', i) as string;
					responseData = await helpscoutApiRequest.call(this, 'GET', `/v2/customers/${customerId}`);
				}
				//https://developer.helpscout.com/mailbox-api/endpoints/customers/list
				if (operation === 'getAll') {
					const returnAll = this.getNodeParameter('returnAll', i) as boolean;
					const options = this.getNodeParameter('options', i) as IDataObject;
					Object.assign(qs, options);
					if (returnAll) {
						responseData = await helpscoutApiRequestAllItems.call(this, '_embedded.customers', 'GET', '/v2/customers', {}, qs);
					} else {
						qs.limit = this.getNodeParameter('limit', i) as number;
						responseData = await helpscoutApiRequestAllItems.call(this, '_embedded.customers', 'GET', '/v2/customers', {}, qs);
						responseData = responseData.splice(0, qs.limit);
					}
				}
				//https://developer.helpscout.com/mailbox-api/endpoints/customers/overwrite/
				if (operation === 'update') {
					const customerId = this.getNodeParameter('customerId', i) as string;
					const updateFields = this.getNodeParameter('updateFields', i) as IDataObject;
					let body: ICustomer = {};
					body = Object.assign({}, updateFields);
					if (body.age) {
						body.age = body.age.toString();
					}
					if (Object.keys(body).length === 0) {
						throw new Error('You have to set at least one field');
					}
					responseData = await helpscoutApiRequest.call(this, 'PUT', `/v2/customers/${customerId}`, body, qs, undefined, { resolveWithFullResponse: true });
					responseData = { success: true };
				}
			}
			if (resource === 'mailbox') {
				//https://developer.helpscout.com/mailbox-api/endpoints/mailboxes/get
				if (operation === 'get') {
					const mailboxId = this.getNodeParameter('mailboxId', i) as string;
					responseData = await helpscoutApiRequest.call(this, 'GET', `/v2/mailboxes/${mailboxId}`, {}, qs);
				}
				//https://developer.helpscout.com/mailbox-api/endpoints/mailboxes/list
				if (operation === 'getAll') {
					const returnAll = this.getNodeParameter('returnAll', i) as boolean;
					if (returnAll) {
						responseData = await helpscoutApiRequestAllItems.call(this, '_embedded.mailboxes', 'GET', '/v2/mailboxes', {}, qs);
					} else {
						qs.limit = this.getNodeParameter('limit', i) as number;
						responseData = await helpscoutApiRequestAllItems.call(this, '_embedded.mailboxes', 'GET', '/v2/mailboxes', {}, qs);
						responseData = responseData.splice(0, qs.limit);
					}
				}
			}
			if (resource === 'thread') {
				//https://developer.helpscout.com/mailbox-api/endpoints/conversations/threads/chat
				if (operation === 'create') {
					const conversationId = this.getNodeParameter('conversationId', i) as string;
					const type = this.getNodeParameter('type', i) as string;
					const text = this.getNodeParameter('text', i) as string;
					const additionalFields = this.getNodeParameter('additionalFields', i) as IDataObject;
					const attachments = this.getNodeParameter('attachmentsUi', i) as IDataObject;
					const body: IThread = {
						text,
						attachments: [],
					};
					Object.assign(body, additionalFields);
					if (additionalFields.customerId) {
						body.customer = {
							id: additionalFields.customerId,
						};
						//@ts-ignore
						delete body.customerId;
					}
					if (additionalFields.customerEmail) {
						body.customer = {
							email: additionalFields.customerEmail,
						};
						//@ts-ignore
						delete body.customerEmail;
					}
					if (body.customer === undefined) {
						throw new Error('Either customer email or customer ID must be set');
					}
					if (attachments) {
						if (attachments.attachmentsValues
						&&	(attachments.attachmentsValues as IDataObject[]).length !== 0) {
							body.attachments?.push.apply(body.attachments, attachments.attachmentsValues as IAttachment[]);
						}
						if (attachments.attachmentsBinary
						&& 	(attachments.attachmentsBinary as IDataObject[]).length !== 0
						&&	items[i].binary) {
							 const mapFunction = (value: IDataObject): IAttachment => {
								 const binaryProperty = (items[i].binary as IBinaryKeyData)[value.property as string];
								if (binaryProperty) {
									return {
										fileName: binaryProperty.fileName || 'unknown',
										data: binaryProperty.data,
										mimeType: binaryProperty.mimeType,
									 };
									} else {
										throw new Error(`Binary property ${value.property} does not exist on input`);
									}
							};
							body.attachments?.push.apply(body.attachments, (attachments.attachmentsBinary as IDataObject[]).map(mapFunction) as IAttachment[]);
						}
					}
					responseData = await helpscoutApiRequest.call(this, 'POST', `/v2/conversations/${conversationId}/chats`, body);
					responseData = { success: true };
				}
				//https://developer.helpscout.com/mailbox-api/endpoints/conversations/threads/list
				if (operation === 'getAll') {
					const returnAll = this.getNodeParameter('returnAll', i) as boolean;
					const conversationId = this.getNodeParameter('conversationId', i) as string;
					if (returnAll) {
						responseData = await helpscoutApiRequestAllItems.call(this, '_embedded.threads', 'GET', `/v2/conversations/${conversationId}/threads`);
					} else {
						qs.limit = this.getNodeParameter('limit', i) as number;
						responseData = await helpscoutApiRequestAllItems.call(this, '_embedded.threads', 'GET', `/v2/conversations/${conversationId}/threads`, {}, qs);
						responseData = responseData.splice(0, qs.limit);
					}
				}
			}
			if (Array.isArray(responseData)) {
				returnData.push.apply(returnData, responseData as IDataObject[]);
			} else if (responseData !== undefined) {
				returnData.push(responseData as IDataObject);
			}
		}
		return [this.helpers.returnJsonArray(returnData)];
	}
}