/*
 * 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.balance = "balance";
	elements.balanceNegative = "balance-negative";
	elements.ccAmount = "cc-amount";
	elements.ccCharge = "cc-charge";
	elements.ccExp = "cc-exp";
	elements.ccNumber = "cc-number";
	elements.cvv = "cvv";
	elements.paypalAmount = "paypal-amount";
	elements.paypalCharge = "paypal-charge";

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

	// Static references to UI elements
	var ui = {};
	ui.balance = {};
	ui.ccAmount = {};
	ui.ccCharge = {};
	ui.ccExp = {};
	ui.ccNumber = {};
	ui.cvv = {};
	ui.paypalAmount = {};
	ui.paypalCharge = {};

	// Callback for account details API call
	var displayAccount = function(response)
	{
		ui.balance.innerHTML = "$";
		if (response.balance < 0) {
			ui.balance.innerHTML += (-response.balance).toFixed(2) + " credit";
		} else if (response.balance > 0) {
			ui.balance.innerHTML += response.balance.toFixed(2) + " outstanding";
			ui.balance.className = elements.balanceNegative;
		} else {
			ui.balance.innerHTML += response.balance.toFixed(2);
		}

		if (response.credit_card) {
			ui.ccNumber.innerHTML = response.credit_card.last_four;
			ui.ccExp.innerHTML = response.credit_card.expiry;
		}

		ui.ccCharge.disabled = false;
		//ui.paypalCharge.disabled = false;
	};

	// Click handler for CC charge button
	var handleCharge = function(event)
	{
		if (event.currentTarget.disabled)
			return;

		if (!confirm("Charge $" + parseInt(ui.ccAmount.value).toFixed(2) + " against your credit card?"))
			return;

		var req = {
			"usd": ui.ccAmount.value
		};
		if (ui.cvv.value.length)
			req.cvv = ui.cvv.value;

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

	// Click handler for PayPal button
	var handlePayPal = function(event)
	{
		if (event.currentTarget.disabled)
			return;
	};

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

		setupHeader();

		// Get element references
		ui.balance = document.getElementById(elements.balance);
		ui.ccAmount = document.getElementById(elements.ccAmount);
		ui.ccCharge = document.getElementById(elements.ccCharge);
		ui.ccExp = document.getElementById(elements.ccExp);
		ui.ccNumber = document.getElementById(elements.ccNumber);
		ui.cvv = document.getElementById(elements.cvv);
		ui.paypalAmount = document.getElementById(elements.paypalAmount);
		ui.paypalCharge = document.getElementById(elements.paypalCharge);

		// Register event handlers
		ui.ccCharge.addEventListener("click", handleCharge);
		ui.paypalCharge.addEventListener("click", handlePayPal);

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

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