/**
 * Copyright © Volker Schukai and all contributing authors, {{copyRightYear}}. All rights reserved.
 * Node module: @schukai/monster
 *
 * This source code is licensed under the GNU Affero General Public License version 3 (AGPLv3).
 * The full text of the license can be found at: https://www.gnu.org/licenses/agpl-3.0.en.html
 *
 * For those who do not wish to adhere to the AGPLv3, a commercial license is available.
 * Acquiring a commercial license allows you to use this software without complying with the AGPLv3 terms.
 * For more information about purchasing a commercial license, please contact Volker Schukai.
 *
 * SPDX-License-Identifier: AGPL-3.0
 */

import { instanceSymbol } from "../../constants.mjs";
import { registerCustomElement } from "../../dom/customelement.mjs";
import { Reload } from "./reload.mjs";

export { ShadowReload };

/**
 * A select control that can be used to select one or more options from a list.
 *
 * @fragments /fragments/components/form/shadow-reload/
 *
 * @example /examples/components/form/shadow-reload-simple simple shadow reload
 *
 * @since 3.6.0
 * @copyright Volker Schukai
 * @summary A shadow reload control.
 * @fires monster-fetched
 */
class ShadowReload extends Reload {
	/**
	 * This method is called by the `instanceof` operator.
	 * @return {symbol}
	 */
	static get [instanceSymbol]() {
		return Symbol.for("@schukai/monster/components/form/shadow-reload");
	}

	/**
	 * To set the options via the HTML tag, the attribute `data-monster-options` must be used.
	 * @see {@link https://monsterjs.org/en/doc/#configurate-a-monster-control}
	 *
	 * The individual configuration values can be found in the table.
	 *
	 * @property {Object} templates Template definitions
	 * @property {string} templates.main Main template
	 * @property {string} url=undefined
	 * @property {string} reload=undefined currently the values defined are `onshow` and `always`. The default `onshow` removes the IntersectionObserver. This means that the content is only loaded once. reloading of the content does not occur.
	 * @property {string} filter=undefined dom selectors to search for elements, if undefined then everything is taken
	 * @property {Object[]} processors
	 * @property {Object} fetch Fetch [see Using Fetch mozilla.org](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API/Using_Fetch)
	 * @property {String} fetch.redirect=error
	 * @property {String} fetch.method=GET
	 * @property {String} fetch.mode=same-origin
	 * @property {String} fetch.credentials=same-origin
	 * @property {Object} fetch.headers={"accept":"text/html"}}
	 */
	get defaults() {
		return Object.assign({}, super.defaults, {
			templates: {
				main: getTemplate.call(this),
			},
			shadowMode: "open",
		});
	}

	/**
	 * This method is called internal and should not be called directly.
	 *
	 * @return {string}
	 */
	static getTag() {
		return "monster-shadow-reload";
	}
}

/**
 * @private
 * @return {string}
 */
function getTemplate() {
	return this.innerHTML;
}

registerCustomElement(ShadowReload);
