/*
 * This file is part of Linode Manager Classic.
 *
 * Linode Manager Classic is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Linode Manager Classic is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Linode Manager Classic.  If not, see <https://www.gnu.org/licenses/>.
 */

import { settings, elements, apiPost, parseParams, setupHeader } from "/global.js";

(function()
{
	// Element names specific to this page
	elements.confirmButton = "confirm-button";
	elements.qrCode = "qr-code-img";
	elements.subnav = "subnav-link";
	elements.subnavActive = "subnav-link-active";
	elements.tfaSecret = "tfa-secret";
	elements.tfaToken = "tfa-token";

	// Data received from API calls
	var data = {};

	// Static references to UI elements
	var ui = {};
	ui.confirmButton = {};
	ui.qrCode = {};
	ui.tfaSecret = {};
	ui.tfaToken = {};

	// Callback for TFA API call
	var displaySecret = function(response)
	{
		ui.tfaSecret.innerHTML = response.secret;
		ui.confirmButton.disabled = false;
	};

	// Click handler for confirm button
	var handleConfirm = function(event)
	{
		if (event.currentTarget.disabled)
			return;

		var req = {
			"tfa_code": ui.tfaToken.value
		};

		apiPost("/profile/tfa-enable-confirm", req, function(response) {
			alert("Your emergency scratch code is: " + response.scratch + "\nRecord this code and store it in a safe place. You will not be able to view it again!");
			location.href = "/profile/auth";
		});
	};

	// Initial setup
	var setup = function()
	{
		// Parse URL parameters
		data.params = parseParams();

		setupHeader();

		// Highlight the auth subnav link
		var subnavLinks = document.getElementsByClassName(elements.subnav);
		for (var i = 0; i < subnavLinks.length; i++) {
			if (subnavLinks[i].pathname == "/profile/auth")
				subnavLinks[i].className = elements.subnav + " " + elements.subnavActive;
			else
				subnavLinks[i].className = elements.subnav;
		}

		// Get element references
		ui.confirmButton = document.getElementById(elements.confirmButton);
		ui.qrCode = document.getElementById(elements.qrCode);
		ui.tfaSecret = document.getElementById(elements.tfaSecret);
		ui.tfaToken = document.getElementById(elements.tfaToken);

		// Register event handlers
		ui.confirmButton.addEventListener("click", handleConfirm);

		// Get data from API
		apiPost("/profile/tfa-enable", {}, displaySecret);
	};

	// Attach onload handler
	window.addEventListener("load", setup);
})();