n8n/packages/nodes-base/nodes/Google/Chat/GenericFunctions.ts

import type {
	IDataObject,
	IExecuteFunctions,
	IHttpRequestMethods,
	ILoadOptionsFunctions,
	INodeProperties,
	IRequestOptions,
	JsonObject,
} from 'n8n-workflow';
import { NodeApiError } from 'n8n-workflow';

import { getSendAndWaitConfig } from '../../../utils/sendAndWait/utils';
import { createUtmCampaignLink } from '../../../utils/utilities';
import { getGoogleAccessToken } from '../GenericFunctions';

async function googleServiceAccountApiRequest(
	this: IExecuteFunctions | ILoadOptionsFunctions,
	options: IRequestOptions,
	noCredentials = false,
): Promise<any> {
	if (noCredentials) {
		return await this.helpers.request(options);
	}

	const credentials = await this.getCredentials('googleApi');

	const { access_token } = await getGoogleAccessToken.call(this, credentials, 'chat');
	options.headers!.Authorization = `Bearer ${access_token}`;

	return await this.helpers.request(options);
}

export async function googleApiRequest(
	this: IExecuteFunctions | ILoadOptionsFunctions,
	method: IHttpRequestMethods,
	resource: string,
	body: IDataObject = {},
	qs: IDataObject = {},
	uri?: string,
	noCredentials = false,
	encoding?: null | undefined,
) {
	const options: IRequestOptions = {
		headers: {
			Accept: 'application/json',
			'Content-Type': 'application/json',
		},
		method,
		body,
		qs,
		uri: uri || `https://chat.googleapis.com${resource}`,
		qsStringifyOptions: {
			arrayFormat: 'repeat',
		},
		json: true,
	};

	if (encoding === null) {
		options.encoding = null;
	}

	if (Object.keys(body).length === 0) {
		delete options.body;
	}

	let responseData;

	try {
		if (noCredentials || this.getNodeParameter('authentication', 0) === 'serviceAccount') {
			responseData = await googleServiceAccountApiRequest.call(this, options, noCredentials);
		} else {
			responseData = await this.helpers.requestWithAuthentication.call(
				this,
				'googleChatOAuth2Api',
				options,
			);
		}
	} catch (error) {
		if (error.code === 'ERR_OSSL_PEM_NO_START_LINE') {
			error.statusCode = '401';
		}

		throw new NodeApiError(this.getNode(), error as JsonObject);
	}

	if (Object.keys(responseData as IDataObject).length !== 0) {
		return responseData;
	} else {
		return { success: true };
	}
}

export async function googleApiRequestAllItems(
	this: IExecuteFunctions | ILoadOptionsFunctions,
	propertyName: string,
	method: IHttpRequestMethods,
	endpoint: string,

	body: any = {},
	query: IDataObject = {},
): Promise<any> {
	const returnData: IDataObject[] = [];

	let responseData;
	query.pageSize = 100;

	do {
		responseData = await googleApiRequest.call(this, method, endpoint, body, query);
		query.pageToken = responseData.nextPageToken;
		returnData.push.apply(returnData, responseData[propertyName] as IDataObject[]);
	} while (responseData.nextPageToken !== undefined && responseData.nextPageToken !== '');

	return returnData;
}

export function validateJSON(json: string | undefined): any {
	let result;
	try {
		result = JSON.parse(json!);
	} catch (exception) {
		result = undefined;
	}
	return result;
}

export function getPagingParameters(resource: string, operation = 'getAll') {
	const pagingParameters: INodeProperties[] = [
		{
			displayName: 'Return All',
			name: 'returnAll',
			type: 'boolean',
			displayOptions: {
				show: {
					resource: [resource],
					operation: [operation],
				},
			},
			default: false,
			description: 'Whether to return all results or only up to a given limit',
		},
		{
			displayName: 'Limit',
			name: 'limit',
			type: 'number',
			typeOptions: {
				maxValue: 1000,
			},
			displayOptions: {
				show: {
					resource: [resource],
					operation: [operation],
					returnAll: [false],
				},
			},
			default: 100,
			description: 'Max number of results to return',
		},
	];
	return pagingParameters;
}

export function createSendAndWaitMessageBody(context: IExecuteFunctions) {
	const config = getSendAndWaitConfig(context);

	const instanceId = context.getInstanceId();
	const attributionText = '_This_ _message_ _was_ _sent_ _automatically_ _with_';
	const link = createUtmCampaignLink('n8n-nodes-base.googleChat', instanceId);
	const attribution = `${attributionText} _<${link}|n8n>_`;

	const buttons: string[] = config.options.map(
		(option) => `*<${`${config.url}?approved=${option.value}`}|${option.label}>*`,
	);

	const text = `${config.message}\n\n\n${buttons.join('   ')}\n\n${attribution}`;

	const body = {
		text,
	};

	return body;
}