n8n/packages/core/test/Helpers.ts

import { set } from 'lodash';

import {
	ICredentialDataDecryptedObject,
	ICredentialsHelper,
	IDataObject,
	IExecuteWorkflowInfo,
	INodeExecutionData,
	INodeParameters,
	INodeType,
	INodeTypeData,
	INodeTypes,
	IRun,
	ITaskData,
	IWorkflowBase,
	IWorkflowExecuteAdditionalData,
	NodeParameterValue,
	WorkflowHooks,
} from 'n8n-workflow';

import {
	Credentials,
	IDeferredPromise,
	IExecuteFunctions,
} from '../src';


export class CredentialsHelper extends ICredentialsHelper {
	getDecrypted(name: string, type: string): ICredentialDataDecryptedObject {
		return {};
	}

	getCredentials(name: string, type: string): Credentials {
		return new Credentials('', '', [], '');
	}

	async updateCredentials(name: string, type: string, data: ICredentialDataDecryptedObject): Promise<void> {}
}


class NodeTypesClass implements INodeTypes {

	nodeTypes: INodeTypeData = {
		'n8n-nodes-base.if': {
			sourcePath: '',
			type: {
				description: {
					displayName: 'If',
					name: 'if',
					group: ['transform'],
					version: 1,
					description: 'Splits a stream depending on defined compare operations.',
					defaults: {
						name: 'IF',
						color: '#408000',
					},
					inputs: ['main'],
					outputs: ['main', 'main'],
					properties: [
						{
							displayName: 'Conditions',
							name: 'conditions',
							placeholder: 'Add Condition',
							type: 'fixedCollection',
							typeOptions: {
								multipleValues: true,
							},
							description: 'The type of values to compare.',
							default: {},
							options: [
								{
									name: 'boolean',
									displayName: 'Boolean',
									values: [
										{
											displayName: 'Value 1',
											name: 'value1',
											type: 'boolean',
											default: false,
											description: 'The value to compare with the second one.',
										},
										{
											displayName: 'Operation',
											name: 'operation',
											type: 'options',
											options: [
												{
													name: 'Equal',
													value: 'equal',
												},
												{
													name: 'Not Equal',
													value: 'notEqual',
												},
											],
											default: 'equal',
											description: 'Operation to decide where the the data should be mapped to.',
										},
										{
											displayName: 'Value 2',
											name: 'value2',
											type: 'boolean',
											default: false,
											description: 'The value to compare with the first one.',
										},
									],
								},
								{
									name: 'number',
									displayName: 'Number',
									values: [
										{
											displayName: 'Value 1',
											name: 'value1',
											type: 'number',
											default: 0,
											description: 'The value to compare with the second one.',
										},
										{
											displayName: 'Operation',
											name: 'operation',
											type: 'options',
											options: [
												{
													name: 'Smaller',
													value: 'smaller',
												},
												{
													name: 'Smaller Equal',
													value: 'smallerEqual',
												},
												{
													name: 'Equal',
													value: 'equal',
												},
												{
													name: 'Not Equal',
													value: 'notEqual',
												},
												{
													name: 'Larger',
													value: 'larger',
												},
												{
													name: 'Larger Equal',
													value: 'largerEqual',
												},
												{
													name: 'Is Empty',
													value: 'isEmpty',
												},
											],
											default: 'smaller',
											description: 'Operation to decide where the the data should be mapped to.',
										},
										{
											displayName: 'Value 2',
											name: 'value2',
											type: 'number',
											displayOptions: {
												hide: {
													operation: [
														'isEmpty',
													],
												},
											},
											default: 0,
											description: 'The value to compare with the first one.',
										},
									],
								},
								{
									name: 'string',
									displayName: 'String',
									values: [
										{
											displayName: 'Value 1',
											name: 'value1',
											type: 'string',
											default: '',
											description: 'The value to compare with the second one.',
										},
										{
											displayName: 'Operation',
											name: 'operation',
											type: 'options',
											options: [
												{
													name: 'Contains',
													value: 'contains',
												},
												{
													name: 'Ends With',
													value: 'endsWith',
												},
												{
													name: 'Equal',
													value: 'equal',
												},
												{
													name: 'Not Contains',
													value: 'notContains',
												},
												{
													name: 'Not Equal',
													value: 'notEqual',
												},
												{
													name: 'Regex',
													value: 'regex',
												},
												{
													name: 'Starts With',
													value: 'startsWith',
												},
												{
													name: 'Is Empty',
													value: 'isEmpty',
												},
											],
											default: 'equal',
											description: 'Operation to decide where the the data should be mapped to.',
										},
										{
											displayName: 'Value 2',
											name: 'value2',
											type: 'string',
											displayOptions: {
												hide: {
													operation: [
														'isEmpty',
														'regex',
													],
												},
											},
											default: '',
											description: 'The value to compare with the first one.',
										},
										{
											displayName: 'Regex',
											name: 'value2',
											type: 'string',
											displayOptions: {
												show: {
													operation: [
														'regex',
													],
												},
											},
											default: '',
											placeholder: '/text/i',
											description: 'The regex which has to match.',
										},
									],
								},
							],
						},
						{
							displayName: 'Combine',
							name: 'combineOperation',
							type: 'options',
							options: [
								{
									name: 'ALL',
									description: 'Only if all conditions are meet it goes into "true" branch.',
									value: 'all',
								},
								{
									name: 'ANY',
									description: 'If any of the conditions is meet it goes into "true" branch.',
									value: 'any',
								},
							],
							default: 'all',
							description: 'If multiple rules got set this settings decides if it is true as soon as ANY condition matches or only if ALL get meet.',
						},
					],
				},
				async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
					const returnDataTrue: INodeExecutionData[] = [];
					const returnDataFalse: INodeExecutionData[] = [];

					const items = this.getInputData();

					let item: INodeExecutionData;
					let combineOperation: string;

					// The compare operations
					const compareOperationFunctions: {
						[key: string]: (value1: NodeParameterValue, value2: NodeParameterValue) => boolean;
					} = {
						contains: (value1: NodeParameterValue, value2: NodeParameterValue) => (value1 || '').toString().includes((value2 || '').toString()),
						notContains: (value1: NodeParameterValue, value2: NodeParameterValue) => !(value1 || '').toString().includes((value2 || '').toString()),
						endsWith: (value1: NodeParameterValue, value2: NodeParameterValue) => (value1 as string).endsWith(value2 as string),
						equal: (value1: NodeParameterValue, value2: NodeParameterValue) => value1 === value2,
						notEqual: (value1: NodeParameterValue, value2: NodeParameterValue) => value1 !== value2,
						larger: (value1: NodeParameterValue, value2: NodeParameterValue) => (value1 || 0) > (value2 || 0),
						largerEqual: (value1: NodeParameterValue, value2: NodeParameterValue) => (value1 || 0) >= (value2 || 0),
						smaller: (value1: NodeParameterValue, value2: NodeParameterValue) => (value1 || 0) < (value2 || 0),
						smallerEqual: (value1: NodeParameterValue, value2: NodeParameterValue) => (value1 || 0) <= (value2 || 0),
						startsWith: (value1: NodeParameterValue, value2: NodeParameterValue) => (value1 as string).startsWith(value2 as string),
						isEmpty: (value1: NodeParameterValue) => [undefined, null, ''].includes(value1 as string),
						regex: (value1: NodeParameterValue, value2: NodeParameterValue) => {
							const regexMatch = (value2 || '').toString().match(new RegExp('^/(.*?)/([gimusy]*)$'));

							let regex: RegExp;
							if (!regexMatch) {
								regex = new RegExp((value2 || '').toString());
							} else if (regexMatch.length === 1) {
								regex = new RegExp(regexMatch[1]);
							} else {
								regex = new RegExp(regexMatch[1], regexMatch[2]);
							}

							return !!(value1 || '').toString().match(regex);
						},
					};

					// The different dataTypes to check the values in
					const dataTypes = [
						'boolean',
						'number',
						'string',
					];

					// Itterate over all items to check which ones should be output as via output "true" and
					// which ones via output "false"
					let dataType: string;
					let compareOperationResult: boolean;
					itemLoop:
					for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
						item = items[itemIndex];

						let compareData: INodeParameters;

						combineOperation = this.getNodeParameter('combineOperation', itemIndex) as string;

						// Check all the values of the different dataTypes
						for (dataType of dataTypes) {
							// Check all the values of the current dataType
							for (compareData of this.getNodeParameter(`conditions.${dataType}`, itemIndex, []) as INodeParameters[]) {
								// Check if the values passes
								compareOperationResult = compareOperationFunctions[compareData.operation as string](compareData.value1 as NodeParameterValue, compareData.value2 as NodeParameterValue);

								if (compareOperationResult === true && combineOperation === 'any') {
									// If it passes and the operation is "any" we do not have to check any
									// other ones as it should pass anyway. So go on with the next item.
									returnDataTrue.push(item);
									continue itemLoop;
								} else if (compareOperationResult === false && combineOperation === 'all') {
									// If it fails and the operation is "all" we do not have to check any
									// other ones as it should be not pass anyway. So go on with the next item.
									returnDataFalse.push(item);
									continue itemLoop;
								}
							}
						}

						if (combineOperation === 'all') {
							// If the operation is "all" it means the item did match all conditions
							// so it passes.
							returnDataTrue.push(item);
						} else {
							// If the operation is "any" it means the the item did not match any condition.
							returnDataFalse.push(item);
						}
					}

					return [returnDataTrue, returnDataFalse];
				},
			},
		},
		'n8n-nodes-base.merge': {
			sourcePath: '',
			type: {
				description: {
					displayName: 'Merge',
					name: 'merge',
					icon: 'fa:clone',
					group: ['transform'],
					version: 1,
					description: 'Merges data of multiple streams once data of both is available',
					defaults: {
						name: 'Merge',
						color: '#00cc22',
					},
					inputs: ['main', 'main'],
					outputs: ['main'],
					properties: [
						{
							displayName: 'Mode',
							name: 'mode',
							type: 'options',
							options: [
								{
									name: 'Append',
									value: 'append',
									description: 'Combines data of both inputs. The output will contain items of input 1 and input 2.',
								},
								{
									name: 'Pass-through',
									value: 'passThrough',
									description: 'Passes through data of one input. The output will conain only items of the defined input.',
								},
								{
									name: 'Wait',
									value: 'wait',
									description: 'Waits till data of both inputs is available and will then output a single empty item.',
								},
							],
							default: 'append',
							description: 'How data should be merged. If it should simply<br />be appended or merged depending on a property.',
						},
						{
							displayName: 'Output Data',
							name: 'output',
							type: 'options',
							displayOptions: {
								show: {
									mode: [
										'passThrough',
									],
								},
							},
							options: [
								{
									name: 'Input 1',
									value: 'input1',
								},
								{
									name: 'Input 2',
									value: 'input2',
								},
							],
							default: 'input1',
							description: 'Defines of which input the data should be used as output of node.',
						},
					],
				},
				async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
					// const itemsInput2 = this.getInputData(1);

					const returnData: INodeExecutionData[] = [];

					const mode = this.getNodeParameter('mode', 0) as string;

					if (mode === 'append') {
						// Simply appends the data
						for (let i = 0; i < 2; i++) {
							returnData.push.apply(returnData, this.getInputData(i));
						}
					} else if (mode === 'passThrough') {
						const output = this.getNodeParameter('output', 0) as string;

						if (output === 'input1') {
							returnData.push.apply(returnData, this.getInputData(0));
						} else {
							returnData.push.apply(returnData, this.getInputData(1));
						}
					} else if (mode === 'wait') {
						returnData.push({ json: {} });
					}

					return [returnData];
				},
			},
		},
		'n8n-nodes-base.set': {
			sourcePath: '',
			type: {
				description: {
					displayName: 'Set',
					name: 'set',
					group: ['input'],
					version: 1,
					description: 'Sets a value',
					defaults: {
						name: 'Set',
						color: '#0000FF',
					},
					inputs: ['main'],
					outputs: ['main'],
					properties: [
						{
							displayName: 'Keep Only Set',
							name: 'keepOnlySet',
							type: 'boolean',
							default: false,
							description: 'If only the values set on this node should be<br />kept and all others removed.',
						},
						{
							displayName: 'Values to Set',
							name: 'values',
							placeholder: 'Add Value',
							type: 'fixedCollection',
							typeOptions: {
								multipleValues: true,
							},
							description: 'The value to set.',
							default: {},
							options: [
								{
									name: 'boolean',
									displayName: 'Boolean',
									values: [
										{
											displayName: 'Name',
											name: 'name',
											type: 'string',
											default: 'propertyName',
											description: 'Name of the property to write data to.<br />Supports dot-notation.<br />Example: "data.person[0].name"',
										},
										{
											displayName: 'Value',
											name: 'value',
											type: 'boolean',
											default: false,
											description: 'The boolean value to write in the property.',
										},
									],
								},
								{
									name: 'number',
									displayName: 'Number',
									values: [
										{
											displayName: 'Name',
											name: 'name',
											type: 'string',
											default: 'propertyName',
											description: 'Name of the property to write data to.<br />Supports dot-notation.<br />Example: "data.person[0].name"',
										},
										{
											displayName: 'Value',
											name: 'value',
											type: 'number',
											default: 0,
											description: 'The number value to write in the property.',
										},
									],
								},
								{
									name: 'string',
									displayName: 'String',
									values: [
										{
											displayName: 'Name',
											name: 'name',
											type: 'string',
											default: 'propertyName',
											description: 'Name of the property to write data to.<br />Supports dot-notation.<br />Example: "data.person[0].name"',
										},
										{
											displayName: 'Value',
											name: 'value',
											type: 'string',
											default: '',
											description: 'The string value to write in the property.',
										},
									],
								},
							],
						},

						{
							displayName: 'Options',
							name: 'options',
							type: 'collection',
							placeholder: 'Add Option',
							default: {},
							options: [
								{
									displayName: 'Dot Notation',
									name: 'dotNotation',
									type: 'boolean',
									default: true,
									description: `By default does dot-notation get used in property names..<br />
						This means that "a.b" will set the property "b" underneath "a" so { "a": { "b": value} }.<br />
						If that is not intended this can be deactivated, it will then set { "a.b": value } instead.
						`,
								},
							],
						},
					],
				},
				execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {

					const items = this.getInputData();

					if (items.length === 0) {
						items.push({ json: {} });
					}

					const returnData: INodeExecutionData[] = [];

					let item: INodeExecutionData;
					let keepOnlySet: boolean;
					for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
						keepOnlySet = this.getNodeParameter('keepOnlySet', itemIndex, false) as boolean;
						item = items[itemIndex];
						const options = this.getNodeParameter('options', itemIndex, {}) as IDataObject;

						const newItem: INodeExecutionData = {
							json: {},
						};

						if (keepOnlySet !== true) {
							if (item.binary !== undefined) {
								// Create a shallow copy of the binary data so that the old
								// data references which do not get changed still stay behind
								// but the incoming data does not get changed.
								newItem.binary = {};
								Object.assign(newItem.binary, item.binary);
							}

							newItem.json = JSON.parse(JSON.stringify(item.json));
						}

						// Add boolean values
						(this.getNodeParameter('values.boolean', itemIndex, []) as INodeParameters[]).forEach((setItem) => {
							if (options.dotNotation === false) {
								newItem.json[setItem.name as string] = !!setItem.value;
							} else {
								set(newItem.json, setItem.name as string, !!setItem.value);
							}
						});

						// Add number values
						(this.getNodeParameter('values.number', itemIndex, []) as INodeParameters[]).forEach((setItem) => {
							if (options.dotNotation === false) {
								newItem.json[setItem.name as string] = setItem.value;
							} else {
								set(newItem.json, setItem.name as string, setItem.value);
							}
						});

						// Add string values
						(this.getNodeParameter('values.string', itemIndex, []) as INodeParameters[]).forEach((setItem) => {
							if (options.dotNotation === false) {
								newItem.json[setItem.name as string] = setItem.value;
							} else {
								set(newItem.json, setItem.name as string, setItem.value);
							}
						});

						returnData.push(newItem);
					}

					return this.prepareOutputData(returnData);
				},
			},
		},
		'n8n-nodes-base.start': {
			sourcePath: '',
			type: {
				description: {
					displayName: 'Start',
					name: 'start',
					group: ['input'],
					version: 1,
					description: 'Starts the workflow execution from this node',
					defaults: {
						name: 'Start',
						color: '#553399',
					},
					inputs: [],
					outputs: ['main'],
					properties: [],
				},
				execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
					const items = this.getInputData();

					return this.prepareOutputData(items);
				},
			},
		},
	};

	async init(nodeTypes: INodeTypeData): Promise<void> { }

	getAll(): INodeType[] {
		return Object.values(this.nodeTypes).map((data) => data.type);
	}

	getByName(nodeType: string): INodeType {
		return this.nodeTypes[nodeType].type;
	}
}

let nodeTypesInstance: NodeTypesClass | undefined;


export function NodeTypes(): NodeTypesClass {
	if (nodeTypesInstance === undefined) {
		nodeTypesInstance = new NodeTypesClass();
		nodeTypesInstance.init({});
	}

	return nodeTypesInstance;
}


export function WorkflowExecuteAdditionalData(waitPromise: IDeferredPromise<IRun>, nodeExecutionOrder: string[]): IWorkflowExecuteAdditionalData {
	const hookFunctions = {
		nodeExecuteAfter: [
			async (nodeName: string, data: ITaskData): Promise<void> => {
				nodeExecutionOrder.push(nodeName);
			},
		],
		workflowExecuteAfter: [
			async (fullRunData: IRun): Promise<void> => {
				waitPromise.resolve(fullRunData);
			},
		],
	};

	const workflowData: IWorkflowBase = {
		name: '',
		createdAt: new Date(),
		updatedAt: new Date(),
		active: true,
		nodes: [],
		connections: {},
	};

	return {
		credentials: {},
		credentialsHelper: new CredentialsHelper({}, ''),
		hooks: new WorkflowHooks(hookFunctions, 'trigger', '1', workflowData),
		executeWorkflow: async (workflowInfo: IExecuteWorkflowInfo): Promise<any> => {}, // tslint:disable-line:no-any
		restApiUrl: '',
		encryptionKey: 'test',
		timezone: 'America/New_York',
		webhookBaseUrl: 'webhook',
		webhookTestBaseUrl: 'webhook-test',
	};
}