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import * as service from './service';

import * as models from 'powerbi-models';

import * as embed from './embed';

export class Create extends embed.Embed {

constructor(service: service.Service, element: HTMLElement, config: embed.IEmbedConfiguration) {

super(service, element, config);

}

/**

* Gets the dataset ID from the first available location: createConfig or embed url.

*

* @returns {string}

*/

getId(): string {

const datasetId = (this.createConfig && this.createConfig.datasetId) ? this.createConfig.datasetId : Create.findIdFromEmbedUrl(this.config.embedUrl);

if (typeof datasetId !== 'string' || datasetId.length === 0) {

throw new Error('Dataset id is required, but it was not found. You must provide an id either as part of embed configuration.');

}

return datasetId;

}

/**

* Validate create report configuration.

*/

validate(config: models.IReportCreateConfiguration): models.IError[] {

return models.validateCreateReport(config);

}

/**

* Adds the ability to get datasetId from url.

* (e.g. http://embedded.powerbi.com/appTokenReportEmbed?datasetId=854846ed-2106-4dc2-bc58-eb77533bf2f1).

*

* By extracting the ID we can ensure that the ID is always explicitly provided as part of the create configuration.

*

* @static

* @param {string} url

* @returns {string}

*/

static findIdFromEmbedUrl(url: string): string {

const datasetIdRegEx = /datasetId="?([^&]+)"?/

const datasetIdMatch = url.match(datasetIdRegEx);

let datasetId;

if (datasetIdMatch) {

datasetId = datasetIdMatch[1];

}

return datasetId;

}

}