/*
 * 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, regionNames, apiGet, apiPut, parseParams, setupHeader, timeString } from "/global.js";

(function()
{
	// Element names specific to this page
	elements.created = "created";
	elements.description = "description";
	elements.imageLabel = "image-label";
	elements.label = "label";
	elements.nav = "navlink";
	elements.navActive = "navlink-active";
	elements.saveButton = "save-button";
	elements.size = "size";

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

	// Static references to UI elements
	var ui = {};
	ui.created = {};
	ui.description = {};
	ui.imageLabel = {};
	ui.label = {};
	ui.saveButton = {};
	ui.size = {};

	// Callback for image API call
	var displayImage = function(response)
	{
		ui.imageLabel.innerHTML = response.label;
		ui.label.value = response.label;
		var createDate = new Date(response.created + "Z");
		ui.created.innerHTML = createDate.toLocaleString();
		ui.size.innerHTML = response.size;
		ui.description.value = response.description;
		ui.saveButton.disabled = false;
	};

	// Handler for save button
	var handleSave = function(event)
	{
		if (event.currentTarget.disabled)
			return;

		var req = {
			"label": ui.label.value,
			"description": ui.description.value
		};

		apiPut("/images/" + data.params.iid, req, function(response)
		{
			location.href = "/images";
		});
	};

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

		// We need an image ID, so die if we don't have it
		if (!data.params.iid) {
			alert("No image ID supplied!");
			return;
		}

		setupHeader();

		// Highlight the Linodes nav link
		var navLinks = document.getElementsByClassName(elements.nav);
		for (var i = 0; i < navLinks.length; i++) {
			if (navLinks[i].pathname == "/linodes/")
				navLinks[i].className = elements.navActive;
		}

		// Get element references
		ui.created = document.getElementById(elements.created);
		ui.description = document.getElementById(elements.description);
		ui.imageLabel = document.getElementById(elements.imageLabel);
		ui.label = document.getElementById(elements.label);
		ui.saveButton = document.getElementById(elements.saveButton);
		ui.size = document.getElementById(elements.size);

		// Attach event handlers
		ui.saveButton.addEventListener("click", handleSave);

		// Get data from API
		apiGet("/images/" + data.params.iid, displayImage, null);
	};

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