import { createHash } from 'crypto';
import { OptionsWithUri } from 'request';

import {
	IExecuteFunctions,
	IExecuteSingleFunctions,
	IHookFunctions,
	ILoadOptionsFunctions,
	IWebhookFunctions,
} from 'n8n-core';
import {
	ICredentialDataDecryptedObject,
	IDataObject,
} from 'n8n-workflow';

export async function copperApiRequest(this: IHookFunctions | IExecuteFunctions | IExecuteSingleFunctions | ILoadOptionsFunctions | IWebhookFunctions, method: string, resource: string, body: any = {}, qs: IDataObject = {}, uri?: string, option: IDataObject = {}): Promise<any> { // tslint:disable-line:no-any
	const credentials = this.getCredentials('copperApi');
	if (credentials === undefined) {
		throw new Error('No credentials got returned!');
	}

	let options: OptionsWithUri = {
		headers: {
			'X-PW-AccessToken': credentials.apiKey,
			'X-PW-Application': 'developer_api',
			'X-PW-UserEmail': credentials.email,
			'Content-Type': 'application/json',
		},
		method,
		qs,
		body,
		uri: uri ||`https://api.prosperworks.com/developer_api/v1${resource}`,
		json: true,
	};
	options = Object.assign({}, options, option);
	if (Object.keys(options.body).length === 0) {
		delete options.body;
	}

	try {
		return await this.helpers.request!(options);
	} catch (error) {
		let errorMessage = error.message;
		if (error.response.body && error.response.body.message) {
			errorMessage = error.response.body.message;
		}

		throw new Error('Copper Error: ' + errorMessage);
	}
}


/**
 * Creates a secret from the credentials
 *
 * @export
 * @param {ICredentialDataDecryptedObject} credentials
 * @returns
 */
export function getAutomaticSecret(credentials: ICredentialDataDecryptedObject) {
	const data = `${credentials.email},${credentials.apiKey}`;
	return createHash('md5').update(data).digest('hex');
}