import {
	IExecuteFunctions,
} from 'n8n-core';
import {
	IBinaryData,
	IDataObject,
	INodeExecutionData,
	INodeType,
	INodeTypeDescription,
	IOAuth2Options,
	NodeApiError,
	NodeOperationError,
} from 'n8n-workflow';

import { OptionsWithUri } from 'request';
import { replaceNullValues } from './GenericFunctions';

interface OptionData {
	name: string;
	displayName: string;
}

interface OptionDataParamters {
	[key: string]: OptionData;
}


export class HttpRequest implements INodeType {
	description: INodeTypeDescription = {
		displayName: 'HTTP Request',
		name: 'httpRequest',
		icon: 'fa:at',
		group: ['input'],
		version: [1, 2],
		subtitle: '={{$parameter["requestMethod"] + ": " + $parameter["url"]}}',
		description: 'Makes an HTTP request and returns the response data',
		defaults: {
			name: 'HTTP Request',
			color: '#2200DD',
		},
		inputs: ['main'],
		outputs: ['main'],
		credentials: [
			// ----------------------------------
			//            v2 creds
			// ----------------------------------
			{
				name: 'httpBasicAuth',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'httpBasicAuth',
						],
						'@version': [
							2,
						],
					},
				},
			},
			{
				name: 'httpDigestAuth',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'httpDigestAuth',
						],
						'@version': [
							2,
						],
					},
				},
			},
			{
				name: 'httpHeaderAuth',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'httpHeaderAuth',
						],
						'@version': [
							2,
						],
					},
				},
			},
			{
				name: 'httpQueryAuth',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'httpQueryAuth',
						],
						'@version': [
							2,
						],
					},
				},
			},
			{
				name: 'oAuth1Api',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'oAuth1Api',
						],
						'@version': [
							2,
						],
					},
				},
			},
			{
				name: 'oAuth2Api',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'oAuth2Api',
						],
						'@version': [
							2,
						],
					},
				},
			},

			// ----------------------------------
			//            v1 creds
			// ----------------------------------
			{
				name: 'httpBasicAuth',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'basicAuth',
						],
						'@version': [
							1,
						],
					},
				},
			},
			{
				name: 'httpDigestAuth',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'digestAuth',
						],
						'@version': [
							1,
						],
					},
				},
			},
			{
				name: 'httpHeaderAuth',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'headerAuth',
						],
						'@version': [
							1,
						],
					},
				},
			},
			{
				name: 'httpQueryAuth',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'queryAuth',
						],
						'@version': [
							1,
						],
					},
				},
			},
			{
				name: 'oAuth1Api',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'oAuth1',
						],
						'@version': [
							1,
						],
					},
				},
			},
			{
				name: 'oAuth2Api',
				required: true,
				displayOptions: {
					show: {
						authentication: [
							'oAuth2',
						],
					},
				},
			},
		],
		properties: [
			// ----------------------------------
			//           v2 params
			// ----------------------------------
			{
				displayName: 'Authentication',
				name: 'authentication',
				noDataExpression: true,
				type: 'options',
				required: true,
				options: [
					{
						name: 'None',
						value: 'none',
					},
					{
						name: 'Predefined Credential Type',
						value: 'predefinedCredentialType',
						description: 'We\'ve already implemented auth for many services so that you don\'t have to set it up manually',
					},
					{
						name: 'Generic Credential Type',
						value: 'genericCredentialType',
						description: 'Fully customizable. Choose between basic, header, OAuth2, etc.',
					},
				],
				default: 'none',
				displayOptions: {
					show: {
						'@version': [
							2,
						],
					},
				},
			},
			{
				displayName: 'Credential Type',
				name: 'nodeCredentialType',
				type: 'credentialsSelect',
				noDataExpression: true,
				required: true,
				default: '',
				credentialTypes: [
					'extends:oAuth2Api',
					'extends:oAuth1Api',
					'has:authenticate',
				],
				displayOptions: {
					show: {
						authentication: [
							'predefinedCredentialType',
						],
						'@version': [
							2,
						],
					},
				},
			},
			{
				displayName: 'Generic Auth Type',
				name: 'genericAuthType',
				type: 'credentialsSelect',
				required: true,
				default: '',
				credentialTypes: [
					'has:genericAuth',
				],
				displayOptions: {
					show: {
						authentication: [
							'genericCredentialType',
						],
						'@version': [
							2,
						],
					},
				},
			},

			// ----------------------------------
			//           v1 params
			// ----------------------------------
			{
				displayName: 'Authentication',
				name: 'authentication',
				type: 'options',
				options: [
					{
						name: 'Basic Auth',
						value: 'basicAuth',
					},
					{
						name: 'Digest Auth',
						value: 'digestAuth',
					},
					{
						name: 'Header Auth',
						value: 'headerAuth',
					},
					{
						name: 'None',
						value: 'none',
					},
					{
						name: 'OAuth1',
						value: 'oAuth1',
					},
					{
						name: 'OAuth2',
						value: 'oAuth2',
					},
					{
						name: 'Query Auth',
						value: 'queryAuth',
					},
				],
				default: 'none',
				description: 'The way to authenticate',
				displayOptions: {
					show: {
						'@version': [
							1,
						],
					},
				},
			},

			// ----------------------------------
			//        versionless params
			// ----------------------------------
			{
				displayName: 'Request Method',
				name: 'requestMethod',
				type: 'options',
				options: [
					{
						name: 'DELETE',
						value: 'DELETE',
					},
					{
						name: 'GET',
						value: 'GET',
					},
					{
						name: 'HEAD',
						value: 'HEAD',
					},
					{
						name: 'OPTIONS',
						value: 'OPTIONS',
					},
					{
						name: 'PATCH',
						value: 'PATCH',
					},
					{
						name: 'POST',
						value: 'POST',
					},
					{
						name: 'PUT',
						value: 'PUT',
					},
				],
				default: 'GET',
				description: 'The request method to use',
			},
			{
				displayName: 'URL',
				name: 'url',
				type: 'string',
				default: '',
				placeholder: 'http://example.com/index.html',
				description: 'The URL to make the request to',
				required: true,
			},
			{
				displayName: 'Ignore SSL Issues',
				name: 'allowUnauthorizedCerts',
				type: 'boolean',
				default: false,
				// eslint-disable-next-line n8n-nodes-base/node-param-description-wrong-for-ignore-ssl-issues
				description: 'Whether to download the response even if SSL certificate validation is not possible',
			},
			{
				displayName: 'Response Format',
				name: 'responseFormat',
				type: 'options',
				options: [
					{
						name: 'File',
						value: 'file',
					},
					{
						name: 'JSON',
						value: 'json',
					},
					{
						name: 'String',
						value: 'string',
					},
				],
				default: 'json',
				description: 'The format in which the data gets returned from the URL',
			},
			{
				displayName: 'Property Name',
				name: 'dataPropertyName',
				type: 'string',
				default: 'data',
				required: true,
				displayOptions: {
					show: {
						responseFormat: [
							'string',
						],
					},
				},
				description: 'Name of the property to which to write the response data',
			},
			{
				displayName: 'Binary Property',
				name: 'dataPropertyName',
				type: 'string',
				default: 'data',
				required: true,
				displayOptions: {
					show: {
						responseFormat: [
							'file',
						],
					},
				},
				description: 'Name of the binary property to which to write the data of the read file',
			},

			{
				displayName: 'JSON/RAW Parameters',
				name: 'jsonParameters',
				type: 'boolean',
				default: false,
				description: 'Whether the query and/or body parameter should be set via the value-key pair UI or JSON/RAW',
			},

			{
				displayName: 'Options',
				name: 'options',
				type: 'collection',
				placeholder: 'Add Option',
				default: {},
				options: [
					{
						displayName: 'Batch Interval',
						name: 'batchInterval',
						type: 'number',
						typeOptions: {
							minValue: 0,
						},
						default: 1000,
						description: 'Time (in milliseconds) between each batch of requests. 0 for disabled.',
					},
					{
						displayName: 'Batch Size',
						name: 'batchSize',
						type: 'number',
						typeOptions: {
							minValue: -1,
						},
						default: 50,
						description: 'Input will be split in batches to throttle requests. -1 for disabled. 0 will be treated as 1.',
					},
					{
						displayName: 'Body Content Type',
						name: 'bodyContentType',
						type: 'options',
						displayOptions: {
							show: {
								'/requestMethod': [
									'PATCH',
									'POST',
									'PUT',
								],
							},
						},
						options: [
							{
								name: 'JSON',
								value: 'json',
							},
							{
								name: 'RAW/Custom',
								value: 'raw',
							},
							{
								name: 'Form-Data Multipart',
								value: 'multipart-form-data',
							},
							{
								name: 'Form Urlencoded',
								value: 'form-urlencoded',
							},
						],
						default: 'json',
						description: 'Content-Type to use to send body parameters',
					},
					{
						displayName: 'Full Response',
						name: 'fullResponse',
						type: 'boolean',
						default: false,
						description: 'Whether to return the full reponse data instead of only the body',
					},
					{
						displayName: 'Follow All Redirects',
						name: 'followAllRedirects',
						type: 'boolean',
						default: false,
						description: 'Whether to follow non-GET HTTP 3xx redirects',
					},
					{
						displayName: 'Follow GET Redirect',
						name: 'followRedirect',
						type: 'boolean',
						default: true,
						description: 'Whether to follow GET HTTP 3xx redirects',
					},
					{
						displayName: 'Ignore Response Code',
						name: 'ignoreResponseCode',
						type: 'boolean',
						default: false,
						description: 'Whether to succeeds also when status code is not 2xx',
					},
					{
						displayName: 'MIME Type',
						name: 'bodyContentCustomMimeType',
						type: 'string',
						default: '',
						placeholder: 'text/xml',
						description: 'Specify the mime type for raw/custom body type',
						displayOptions: {
							show: {
								'/requestMethod': [
									'PATCH',
									'POST',
									'PUT',
								],
							},
						},
					},
					{
						displayName: 'Proxy',
						name: 'proxy',
						type: 'string',
						default: '',
						placeholder: 'http://myproxy:3128',
						description: 'HTTP proxy to use',
					},
					{
						displayName: 'Split Into Items',
						name: 'splitIntoItems',
						type: 'boolean',
						default: false,
						description: 'Whether to output each element of an array as own item',
						displayOptions: {
							show: {
								'/responseFormat': [
									'json',
								],
							},
						},
					},
					{
						displayName: 'Timeout',
						name: 'timeout',
						type: 'number',
						typeOptions: {
							minValue: 1,
						},
						default: 10000,
						description: 'Time in ms to wait for the server to send response headers (and start the response body) before aborting the request',
					},
					{
						displayName: 'Use Querystring',
						name: 'useQueryString',
						type: 'boolean',
						default: false,
						description: 'Whether you need arrays to be serialized as foo=bar&foo=baz instead of the default foo[0]=bar&foo[1]=baz',
					},
				],
			},


			// Body Parameter
			{
				displayName: 'Send Binary Data',
				name: 'sendBinaryData',
				type: 'boolean',
				displayOptions: {
					show: {
						// TODO: Make it possible to use dot-notation
						// 'options.bodyContentType': [
						// 	'raw',
						// ],
						jsonParameters: [
							true,
						],
						requestMethod: [
							'PATCH',
							'POST',
							'PUT',
						],
					},
				},
				default: false,
				description: 'Whether binary data should be send as body',
			},
			{
				displayName: 'Binary Property',
				name: 'binaryPropertyName',
				type: 'string',
				required: true,
				default: 'data',
				displayOptions: {
					hide: {
						sendBinaryData: [
							false,
						],
					},
					show: {
						jsonParameters: [
							true,
						],
						requestMethod: [
							'PATCH',
							'POST',
							'PUT',
						],
					},
				},
				description: 'Name of the binary property which contains the data for the file to be uploaded. For Form-Data Multipart, they can be provided in the format: <code>"sendKey1:binaryProperty1,sendKey2:binaryProperty2</code>',
			},
			{
				displayName: 'Body Parameters',
				name: 'bodyParametersJson',
				type: 'json',
				displayOptions: {
					hide: {
						sendBinaryData: [
							true,
						],
					},
					show: {
						jsonParameters: [
							true,
						],
						requestMethod: [
							'PATCH',
							'POST',
							'PUT',
							'DELETE',
						],
					},
				},
				default: '',
				description: 'Body parameters as JSON or RAW',
			},
			{
				displayName: 'Body Parameters',
				name: 'bodyParametersUi',
				placeholder: 'Add Parameter',
				type: 'fixedCollection',
				typeOptions: {
					multipleValues: true,
				},
				displayOptions: {
					show: {
						jsonParameters: [
							false,
						],
						requestMethod: [
							'PATCH',
							'POST',
							'PUT',
							'DELETE',
						],
					},
				},
				description: 'The body parameter to send',
				default: {},
				options: [
					{
						name: 'parameter',
						displayName: 'Parameter',
						values: [
							{
								displayName: 'Name',
								name: 'name',
								type: 'string',
								default: '',
								description: 'Name of the parameter',
							},
							{
								displayName: 'Value',
								name: 'value',
								type: 'string',
								default: '',
								description: 'Value of the parameter',
							},
						],
					},
				],
			},

			// Header Parameters
			{
				displayName: 'Headers',
				name: 'headerParametersJson',
				type: 'json',
				displayOptions: {
					show: {
						jsonParameters: [
							true,
						],
					},
				},
				default: '',
				description: 'Header parameters as JSON or RAW',
			},
			{
				displayName: 'Headers',
				name: 'headerParametersUi',
				placeholder: 'Add Header',
				type: 'fixedCollection',
				typeOptions: {
					multipleValues: true,
				},
				displayOptions: {
					show: {
						jsonParameters: [
							false,
						],
					},
				},
				description: 'The headers to send',
				default: {},
				options: [
					{
						name: 'parameter',
						displayName: 'Header',
						values: [
							{
								displayName: 'Name',
								name: 'name',
								type: 'string',
								default: '',
								description: 'Name of the header',
							},
							{
								displayName: 'Value',
								name: 'value',
								type: 'string',
								default: '',
								description: 'Value to set for the header',
							},
						],
					},
				],
			},

			// Query Parameter
			{
				displayName: 'Query Parameters',
				name: 'queryParametersJson',
				type: 'json',
				displayOptions: {
					show: {
						jsonParameters: [
							true,
						],
					},
				},
				default: '',
				description: 'Query parameters as JSON (flat object)',
			},
			{
				displayName: 'Query Parameters',
				name: 'queryParametersUi',
				placeholder: 'Add Parameter',
				type: 'fixedCollection',
				typeOptions: {
					multipleValues: true,
				},
				displayOptions: {
					show: {
						jsonParameters: [
							false,
						],
					},
				},
				description: 'The query parameter to send',
				default: {},
				options: [
					{
						name: 'parameter',
						displayName: 'Parameter',
						values: [
							{
								displayName: 'Name',
								name: 'name',
								type: 'string',
								default: '',
								description: 'Name of the parameter',
							},
							{
								displayName: 'Value',
								name: 'value',
								type: 'string',
								default: '',
								description: 'Value of the parameter',
							},
						],
					},
				],
			},
		],
	};

	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
		const items = this.getInputData();

		const fullReponseProperties = [
			'body',
			'headers',
			'statusCode',
			'statusMessage',
		];

		let authentication;
		const nodeVersion = this.getNode().typeVersion;

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

		try {
			authentication = this.getNodeParameter('authentication', 0) as 'predefinedCredentialType' | 'genericCredentialType' | 'none';
		} catch (_) {}

		let httpBasicAuth;
		let httpDigestAuth;
		let httpHeaderAuth;
		let httpQueryAuth;
		let oAuth1Api;
		let oAuth2Api;
		let nodeCredentialType;

		if (authentication === 'genericCredentialType' || nodeVersion === 1) {
			try {
				httpBasicAuth = await this.getCredentials('httpBasicAuth');
			} catch (_) {}
			try {
				httpDigestAuth = await this.getCredentials('httpDigestAuth');
			} catch (_) {}
			try {
				httpHeaderAuth = await this.getCredentials('httpHeaderAuth');
			} catch (_) {}
			try {
				httpQueryAuth = await this.getCredentials('httpQueryAuth');
			} catch (_) {}
			try {
				oAuth1Api = await this.getCredentials('oAuth1Api');
			} catch (_) {}
			try {
				oAuth2Api = await this.getCredentials('oAuth2Api');
			} catch (_) {}
		} else if (authentication === 'predefinedCredentialType') {
			try {
				nodeCredentialType = this.getNodeParameter('nodeCredentialType', 0) as string;
			} catch (_) {}
		}

		let requestOptions: OptionsWithUri;
		let setUiParameter: IDataObject;

		const uiParameters: IDataObject = {
			bodyParametersUi: 'body',
			headerParametersUi: 'headers',
			queryParametersUi: 'qs',
		};

		const jsonParameters: OptionDataParamters = {
			bodyParametersJson: {
				name: 'body',
				displayName: 'Body Parameters',
			},
			headerParametersJson: {
				name: 'headers',
				displayName: 'Headers',
			},
			queryParametersJson: {
				name: 'qs',
				displayName: 'Query Paramters',
			},
		};
		let returnItems: INodeExecutionData[] = [];
		const requestPromises = [];
		for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
			const requestMethod = this.getNodeParameter('requestMethod', itemIndex) as string;
			const parametersAreJson = this.getNodeParameter('jsonParameters', itemIndex) as boolean;

			const options = this.getNodeParameter('options', itemIndex, {}) as IDataObject;
			const url = this.getNodeParameter('url', itemIndex) as string;

			if (itemIndex > 0 && options.batchSize as number >= 0 && options.batchInterval as number > 0) {
				// defaults batch size to 1 of it's set to 0
				const batchSize: number = options.batchSize as number > 0 ? options.batchSize as number : 1;
				if (itemIndex % batchSize === 0) {
					await new Promise(resolve => setTimeout(resolve, options.batchInterval as number));
				}
			}

			const fullResponse = !!options.fullResponse as boolean;

			requestOptions = {
				headers: {},
				method: requestMethod,
				uri: url,
				gzip: true,
				rejectUnauthorized: !this.getNodeParameter('allowUnauthorizedCerts', itemIndex, false) as boolean,
			};

			if (fullResponse === true) {
				// @ts-ignore
				requestOptions.resolveWithFullResponse = true;
			}

			if (options.followRedirect !== undefined) {
				requestOptions.followRedirect = options.followRedirect as boolean;
			}

			if (options.followAllRedirects !== undefined) {
				requestOptions.followAllRedirects = options.followAllRedirects as boolean;
			}

			if (options.ignoreResponseCode === true) {
				// @ts-ignore
				requestOptions.simple = false;
			}
			if (options.proxy !== undefined) {
				requestOptions.proxy = options.proxy as string;
			}
			if (options.timeout !== undefined) {
				requestOptions.timeout = options.timeout as number;
			} else {
				requestOptions.timeout = 3600000; // 1 hour
			}

			if (options.useQueryString === true) {
				requestOptions.useQuerystring = true;
			}

			if (parametersAreJson === true) {
				// Parameters are defined as JSON
				let optionData: OptionData;
				for (const parameterName of Object.keys(jsonParameters)) {
					optionData = jsonParameters[parameterName] as OptionData;
					const tempValue = this.getNodeParameter(parameterName, itemIndex, '') as string | object;
					const sendBinaryData = this.getNodeParameter('sendBinaryData', itemIndex, false) as boolean;

					if (optionData.name === 'body' && parametersAreJson === true) {
						if (sendBinaryData === true) {

							const contentTypesAllowed = [
								'raw',
								'multipart-form-data',
							];

							if (!contentTypesAllowed.includes(options.bodyContentType as string)) {
								// As n8n-workflow.NodeHelpers.getParamterResolveOrder can not be changed
								// easily to handle parameters in dot.notation simply error for now.
								throw new NodeOperationError(this.getNode(), 'Sending binary data is only supported when option "Body Content Type" is set to "RAW/CUSTOM" or "FORM-DATA/MULTIPART"!');
							}

							const item = items[itemIndex];

							if (item.binary === undefined) {
								throw new NodeOperationError(this.getNode(), 'No binary data exists on item!');
							}

							if (options.bodyContentType === 'raw') {
								const binaryPropertyName = this.getNodeParameter('binaryPropertyName', itemIndex) as string;
								if (item.binary[binaryPropertyName] === undefined) {
									throw new NodeOperationError(this.getNode(), `No binary data property "${binaryPropertyName}" does not exists on item!`);
								}

								const binaryDataBuffer = await this.helpers.getBinaryDataBuffer(itemIndex, binaryPropertyName);
								requestOptions.body = binaryDataBuffer;
							} else if (options.bodyContentType === 'multipart-form-data') {
								requestOptions.body = {};
								const binaryPropertyNameFull = this.getNodeParameter('binaryPropertyName', itemIndex) as string;
								const binaryPropertyNames = binaryPropertyNameFull.split(',').map(key => key.trim());

								for (const propertyData of binaryPropertyNames) {
									let propertyName = 'file';
									let binaryPropertyName = propertyData;
									if (propertyData.includes(':')) {
										const propertyDataParts = propertyData.split(':');
										propertyName = propertyDataParts[0];
										binaryPropertyName = propertyDataParts[1];
									} else if (binaryPropertyNames.length > 1) {
										throw new NodeOperationError(this.getNode(), 'If more than one property should be send it is needed to define the in the format:<code>"sendKey1:binaryProperty1,sendKey2:binaryProperty2"</code>');
									}

									if (item.binary[binaryPropertyName] === undefined) {
										throw new NodeOperationError(this.getNode(), `No binary data property "${binaryPropertyName}" does not exists on item!`);
									}

									const binaryProperty = item.binary[binaryPropertyName] as IBinaryData;
									const binaryDataBuffer = await this.helpers.getBinaryDataBuffer(itemIndex, binaryPropertyName);

									requestOptions.body[propertyName] = {
										value: binaryDataBuffer,
										options: {
											filename: binaryProperty.fileName,
											contentType: binaryProperty.mimeType,
										},
									};
								}
							}
							continue;
						}
					}

					if (tempValue === '') {
						// Paramter is empty so skip it
						continue;
					}

					// @ts-ignore
					requestOptions[optionData.name] = tempValue;

					// @ts-ignore
					if (typeof requestOptions[optionData.name] !== 'object' && options.bodyContentType !== 'raw') {
						// If it is not an object && bodyContentType is not 'raw' it must be JSON so parse it
						try {
							// @ts-ignore
							requestOptions[optionData.name] = JSON.parse(requestOptions[optionData.name]);
						} catch (error) {
							throw new NodeOperationError(this.getNode(), `The data in "${optionData.displayName}" is no valid JSON. Set Body Content Type to "RAW/Custom" for XML or other types of payloads`);
						}
					}
				}
			} else {
				// Paramters are defined in UI
				let optionName: string;
				for (const parameterName of Object.keys(uiParameters)) {
					setUiParameter = this.getNodeParameter(parameterName, itemIndex, {}) as IDataObject;
					optionName = uiParameters[parameterName] as string;
					if (setUiParameter.parameter !== undefined) {
						// @ts-ignore
						requestOptions[optionName] = {};
						for (const parameterData of setUiParameter!.parameter as IDataObject[]) {
							const parameterDataName = parameterData!.name as string;
							const newValue = parameterData!.value;
							if (optionName === 'qs') {
								const computeNewValue = (oldValue: unknown) => {
									if (typeof oldValue === 'string') {
										return [oldValue, newValue];
									} else if (Array.isArray(oldValue)) {
										return [...oldValue, newValue];
									} else {
										return newValue;
									}
								};
								requestOptions[optionName][parameterDataName] = computeNewValue(requestOptions[optionName][parameterDataName]);
							} else if (optionName === 'headers') {
								// @ts-ignore
								requestOptions[optionName][parameterDataName.toString().toLowerCase()] = newValue;
							} else {
								// @ts-ignore
								requestOptions[optionName][parameterDataName] = newValue;
							}
						}
					}
				}
			}

			// Change the way data get send in case a different content-type than JSON got selected
			if (['PATCH', 'POST', 'PUT'].includes(requestMethod)) {
				if (options.bodyContentType === 'multipart-form-data') {
					requestOptions.formData = requestOptions.body;
					delete requestOptions.body;
				} else if (options.bodyContentType === 'form-urlencoded') {
					requestOptions.form = requestOptions.body;
					delete requestOptions.body;
				}
			}

			if (responseFormat === 'file') {
				requestOptions.encoding = null;

				if (options.bodyContentType !== 'raw') {
					requestOptions.body = JSON.stringify(requestOptions.body);
					if (requestOptions.headers === undefined) {
						requestOptions.headers = {};
					}
					if (['POST', 'PUT', 'PATCH'].includes(requestMethod)) {
						requestOptions.headers['Content-Type'] = 'application/json';
					}
				}
			} else if (options.bodyContentType === 'raw') {
				requestOptions.json = false;
			} else {
				requestOptions.json = true;
			}

			// Add Content Type if any are set
			if (options.bodyContentCustomMimeType) {
				if (requestOptions.headers === undefined) {
					requestOptions.headers = {};
				}
				requestOptions.headers['Content-Type'] = options.bodyContentCustomMimeType;
			}

			// Add credentials if any are set
			if (httpBasicAuth !== undefined) {
				requestOptions.auth = {
					user: httpBasicAuth.user as string,
					pass: httpBasicAuth.password as string,
				};
			}
			if (httpHeaderAuth !== undefined) {
				requestOptions.headers![httpHeaderAuth.name as string] = httpHeaderAuth.value;
			}
			if (httpQueryAuth !== undefined) {
				if (!requestOptions.qs) {
					requestOptions.qs = {};
				}
				requestOptions.qs![httpQueryAuth.name as string] = httpQueryAuth.value;
			}
			if (httpDigestAuth !== undefined) {
				requestOptions.auth = {
					user: httpDigestAuth.user as string,
					pass: httpDigestAuth.password as string,
					sendImmediately: false,
				};
			}

			if (requestOptions.headers!['accept'] === undefined) {
				if (responseFormat === 'json') {
					requestOptions.headers!['accept'] = 'application/json,text/*;q=0.99';
				} else if (responseFormat === 'string') {
					requestOptions.headers!['accept'] = 'application/json,text/html,application/xhtml+xml,application/xml,text/*;q=0.9, */*;q=0.1';
				} else {
					requestOptions.headers!['accept'] = 'application/json,text/html,application/xhtml+xml,application/xml,text/*;q=0.9, image/*;q=0.8, */*;q=0.7';
				}
			}

			try {
				let sendRequest: any = requestOptions; // tslint:disable-line:no-any
				// Protect browser from sending large binary data
				if (Buffer.isBuffer(sendRequest.body) && sendRequest.body.length > 250000) {
					sendRequest = {
						...requestOptions,
						body: `Binary data got replaced with this text. Original was a Buffer with a size of ${requestOptions.body.length} byte.`,
					};
				}
				this.sendMessageToUI(sendRequest);
			} catch (e) { }

			if (
				authentication === 'genericCredentialType' ||
				authentication === 'none' ||
				nodeVersion === 1
			) {
				if (oAuth1Api) {
					requestPromises.push(
						this.helpers.requestOAuth1.call(this, 'oAuth1Api', requestOptions),
					);
				} else if (oAuth2Api) {
					requestPromises.push(
						this.helpers.requestOAuth2.call(this, 'oAuth2Api', requestOptions, { tokenType: 'Bearer' }),
					);
				} else {
					// bearerAuth, queryAuth, headerAuth, digestAuth, none
					requestPromises.push(
						this.helpers.request(requestOptions),
					);
				}
			} else if (authentication === 'predefinedCredentialType' && nodeCredentialType) {

				const oAuth2Options: { [credentialType: string]: IOAuth2Options } = {
					clickUpOAuth2Api: {
						keepBearer: false,
						tokenType: 'Bearer',
					},
					slackOAuth2Api: {
						tokenType: 'Bearer',
						property: 'authed_user.access_token',
					},
					boxOAuth2Api: {
						includeCredentialsOnRefreshOnBody: true,
					},
				};

				const additionalOAuth2Options = oAuth2Options[nodeCredentialType];

				// service-specific cred: OAuth1, OAuth2, plain
				requestPromises.push(
					this.helpers.requestWithAuthentication.call(
						this,
						nodeCredentialType,
						requestOptions,
						additionalOAuth2Options && { oauth2: additionalOAuth2Options },
					),
				);
			}
		}

		// @ts-ignore
		const promisesResponses = await Promise.allSettled(requestPromises);

		let response: any; // tslint:disable-line:no-any
		for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
			// @ts-ignore
			response = promisesResponses.shift();

			if (response!.status !== 'fulfilled') {
				if (this.continueOnFail() !== true) {
					// throw error;
					throw new NodeApiError(this.getNode(), response);
				} else {
					// Return the actual reason as error
					returnItems.push(
						{
							json: {
								error: response.reason,
							},
							pairedItem: {
								item: itemIndex,
							},
						},
					);
					continue;
				}
			}

			response = response.value;

			const options = this.getNodeParameter('options', itemIndex, {}) as IDataObject;
			const url = this.getNodeParameter('url', itemIndex) as string;

			const fullResponse = !!options.fullResponse as boolean;

			if (responseFormat === 'file') {
				const dataPropertyName = this.getNodeParameter('dataPropertyName', 0) as string;

				const newItem: INodeExecutionData = {
					json: {},
					binary: {},
					pairedItem: {
						item: itemIndex,
					},
				};

				if (items[itemIndex].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.
					// @ts-ignore
					Object.assign(newItem.binary, items[itemIndex].binary);
				}


				const fileName = (url).split('/').pop();

				if (fullResponse === true) {
					const returnItem: IDataObject = {};
					for (const property of fullReponseProperties) {
						if (property === 'body') {
							continue;
						}
						returnItem[property] = response![property];
					}

					newItem.json = returnItem;

					newItem.binary![dataPropertyName] = await this.helpers.prepareBinaryData(response!.body, fileName);
				} else {
					newItem.json = items[itemIndex].json;

					newItem.binary![dataPropertyName] = await this.helpers.prepareBinaryData(response!, fileName);
				}

				returnItems.push(newItem);
			} else if (responseFormat === 'string') {
				const dataPropertyName = this.getNodeParameter('dataPropertyName', 0) as string;

				if (fullResponse === true) {
					const returnItem: IDataObject = {};
					for (const property of fullReponseProperties) {
						if (property === 'body') {
							returnItem[dataPropertyName] = response![property];
							continue;
						}

						returnItem[property] = response![property];
					}
					returnItems.push({
						json: returnItem,
						pairedItem: {
							item: itemIndex,
						},
					});
				} else {
					returnItems.push({
						json: {
							[dataPropertyName]: response,
						},
						pairedItem: {
							item: itemIndex,
						},
					});
				}
			} else {
				// responseFormat: 'json'
				if (fullResponse === true) {
					const returnItem: IDataObject = {};
					for (const property of fullReponseProperties) {
						returnItem[property] = response![property];
					}

					if (responseFormat === 'json' && typeof returnItem.body === 'string') {
						try {
							returnItem.body = JSON.parse(returnItem.body);
						} catch (error) {
							throw new NodeOperationError(this.getNode(), 'Response body is not valid JSON. Change "Response Format" to "String"');
						}
					}

					returnItems.push({
						json: returnItem,
						pairedItem: {
							item: itemIndex,
						},
					});
				} else {
					if (responseFormat === 'json' && typeof response === 'string') {
						try {
							response = JSON.parse(response);
						} catch (error) {
							throw new NodeOperationError(this.getNode(), 'Response body is not valid JSON. Change "Response Format" to "String"');
						}
					}

					if (options.splitIntoItems === true && Array.isArray(response)) {
						response.forEach(item => returnItems.push({
							json: item,
							pairedItem: {
								item: itemIndex,
							},
						}));
					} else {
						returnItems.push({
							json: response,
							pairedItem: {
								item: itemIndex,
							},
						});
					}
				}
			}
		}

		returnItems = returnItems.map(replaceNullValues);

		return this.prepareOutputData(returnItems);
	}
}