import $ from '../../../shared/jquery.js';
import toastr from 'toastr';
import Waves from 'node-waves';
import * as OMGUtils from './OMGUtils';

window.toastr = toastr;
window.LoadConfig = loadConfig;
window.SaveConfig = saveConfig;
window.ToggleSelectAll = toggleSelectAll;

const CONFIG_ENDPOINT = `${BASEURL}/admin/config`;
const LOAD_CONFIGURATION_METHOD = 'loadconfig';
const SAVE_CONFIGURATION_METHOD = 'saveconfig';

/**
 * Displays a request failure in the admin interface.
 *
 * @param {unknown} error Request error.
 * @returns {void}
 * @sideEffects Displays a toast notification.
 */
function showRequestError(error) {
	const message = error instanceof Response
		? `${error.status} (${error.statusText})`
		: 'Unexpected request error';

	console.error('Admin configuration request failed.', error);
	toastr.error(message);
}

/**
 * Saves the configuration currently displayed in the editor.
 *
 * @returns {void}
 * @sideEffects Performs a network request and displays a toast notification.
 */
function saveConfig() {
	OMGUtils.AjaxReq(CONFIG_ENDPOINT, {
		method: 'POST',
		body: JSON.stringify({ method: SAVE_CONFIGURATION_METHOD, value: $('#config_text').val() }),
	}).fetchPromise()
		.then(response => toastr.success(response.err))
		.catch(showRequestError);
}

/**
 * Loads the current configuration into the editor.
 *
 * @returns {void}
 * @sideEffects Performs a network request and updates the configuration editor.
 */
function loadConfig() {
	OMGUtils.AjaxReq(CONFIG_ENDPOINT, {
		method: 'POST',
		body: JSON.stringify({ method: LOAD_CONFIGURATION_METHOD }),
	}).fetchPromise()
		.then(response => {
			$('#config_text').val(response.value);
			toastr.success(response.err);
		})
		.catch(showRequestError);
}

/**
 * Selects or deselects all rows in a DataTable.
 *
 * @param {string} selector DataTable selector.
 * @param {boolean} shouldSelect Whether rows should be selected.
 * @returns {void}
 * @sideEffects Changes the DataTable selection.
 */
function toggleSelectAll(selector, shouldSelect) {
	const rows = $(selector).DataTable().rows({ page: 'current' });

	if (shouldSelect) {
		rows.select();
		return;
	}

	rows.deselect();
}

/**
 * Initializes the admin interface once the document is ready.
 *
 * @returns {void}
 * @sideEffects Initializes third-party UI widgets and exposes legacy window functions.
 */
function initializeAdmin() {
	Waves.attach('.btn', ['waves-effect', 'waves-light']);
	Waves.init();

	if (!$.fn.dataTable || !$('#datatable').length) {
		return;
	}

	$.fn.dataTable.ext.order['dom-checkbox'] = function (settings, column) {
		return this.api().column(column, { order: 'index' }).nodes().map(function (cell) {
			return $(cell).closest('tr').hasClass('selected') ? '1' : '0';
		});
	};

	$('#datatable').DataTable({
		paging: false,
		scrollY: true,
		responsive: true,
		initComplete: function () {
			$('.dt-scroll-body').slimscroll({
				color: '#DDDDDD',
				railVisible: true,
				railColor: 'black',
				railOpacity: 0.3,
				height: '50vh',
			});
		},
		columnDefs: [
			{ targets: 0, className: 'select-checkbox', orderDataType: 'dom-checkbox' },
			{ targets: -1, orderable: false },
		],
		select: { style: 'multi', selector: 'td:first-child' },
	});

}

document.addEventListener('DOMContentLoaded', initializeAdmin);