preview.js

import { api } from './api';

/**
 * @package     Gravity PDF
 * @copyright   Copyright (c) 2024, Blue Liquid Designs
 * @license     http://opensource.org/licenses/gpl-2.0.php GNU Public License
 */

/**
 * A cache of template schema data, grouped by form
 * @type {Object}
 */
const templateSchema = {};

/**
 * Get template schema data
 *
 * @param {number} formId
 * @param {string} template
 * @return {Object} Template schema.
 *
 * @since 7.0
 */
export async function getTemplateSchema(formId, template) {
	// add formId key to cache
	if (!templateSchema[formId]) {
		templateSchema[formId] = {};
	}

	// return cached schema
	if (templateSchema[formId][template]) {
		return templateSchema[formId][template];
	}

	const url =
		GFPDF.restUrl +
		'form/' +
		encodeURIComponent(formId) +
		'/schema/?template=' +
		encodeURIComponent(template);
	const response = await api(url, {
		method: 'GET',
		headers: {
			'X-WP-Nonce': GFPDF.restNonce,
		},
	});

	try {
		if (!response.ok) {
			throw new Error(await response.json());
		}

		templateSchema[formId][template] = await response.json();

		return templateSchema[formId][template];
	} catch (e) {
		// eslint-disable-next-line no-console
		console.error(e);
	}
}

/**
 * Generate a PDF Preview using the defined PDF settings
 *
 * @param {FormData} formData
 * @return {Blob|null} The rendered PDF, or null on failure.
 *
 * @since 7.0
 */
export async function getPdfPreview(formData) {
	const url =
		GFPDF.restUrl +
		'form/' +
		encodeURIComponent(formData.get('form')) +
		'/preview';
	const response = await api(url, {
		method: 'POST',
		headers: {
			'X-WP-Nonce': GFPDF.restNonce,
		},
		body: formData,
	});

	try {
		if (!response.ok) {
			throw new Error(await response.json());
		}

		return await response.blob();
	} catch (e) {
		// eslint-disable-next-line no-console
		console.error(e);
	}
}