/*
 * 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, apiGet, apiPost, parseParams, setupHeader } from "/global.js";

(function()
{
	// Element names specific to this page
	elements.ccCurrent = "cc-current";
	elements.ccNew = "cc-new";
	elements.cvv = "cvv";
	elements.expiryCurrent = "expiry-current";
	elements.expiryMonth = "expiry-month";
	elements.expiryYear = "expiry-year";
	elements.updateButton = "update-button";

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

	// Static references to UI elements
	var ui = {};
	ui.ccCurrent = {};
	ui.ccNew = {};
	ui.cvv = {};
	ui.expiryCurrent = {};
	ui.expiryMonth = {};
	ui.expiryYear = {};
	ui.updateButton = {};

	// Callback for account details API call
	var displayCC = function(response)
	{
		if (!response.credit_card)
			return;

		ui.ccCurrent.innerHTML = response.credit_card.last_four;
		ui.expiryCurrent.innerHTML = response.credit_card.expiry;
	};

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

		var req = {
			"card_number": ui.ccNew.value,
			"cvv": ui.cvv.value,
			"expiry_month": parseInt(ui.expiryMonth.value),
			"expiry_year": parseInt(ui.expiryYear.value)
		};

		apiPost("/account/credit-card", req, function(response)
		{
			location.href = "/account";
		});
	};

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

		setupHeader();

		// Get element references
		ui.ccCurrent = document.getElementById(elements.ccCurrent);
		ui.ccNew = document.getElementById(elements.ccNew);
		ui.cvv = document.getElementById(elements.cvv);
		ui.expiryCurrent = document.getElementById(elements.expiryCurrent);
		ui.expiryMonth = document.getElementById(elements.expiryMonth);
		ui.expiryYear = document.getElementById(elements.expiryYear);
		ui.updateButton = document.getElementById(elements.updateButton);

		// Populate expiry selectors
		var now = new Date();
		ui.expiryMonth.value = now.getMonth() + 1;
		for (var i = 0; i < 25; i++) {
			var year = document.createElement("option");
			year.value = now.getFullYear() + i;
			year.innerHTML = now.getFullYear() + i;
			ui.expiryYear.appendChild(year);
		}

		// Register event handlers
		ui.updateButton.addEventListener("click", handleUpdate);

		// Get data from API
		apiGet("/account", displayCC, null);
	};

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