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

(function()
{
	// Element names specific to this page
	elements.deleteButton = "delete-button";
	elements.domainLabel = "domain-label";
	elements.domainTag = "domain-tag";
	elements.domainTagLink = "domain-tag-link";
	elements.recordType = "record-type";
	elements.topLinksTitle = "top-links-title";

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

	// Static references to UI elements
	var ui = {};
	ui.deleteButton = {};
	ui.domainLabel = {};
	ui.domainTag = {};
	ui.domainTagLink = {};
	ui.recordType = {};
	ui.topLinksTitle = {};

	// Callback for domain details API call
	var displayDetails = function(response)
	{
		// Set page title and header stuff
		document.title += " // " + response.domain;
		ui.domainLabel.innerHTML = response.domain;
		if (response.tags.length == 1) {
			ui.domainTagLink.href = "/dns?tag=" + response.tags[0];
			ui.domainTagLink.innerHTML = "(" + response.tags[0] + ")";
			ui.domainTag.style.display = "inline";
		}
	};

	// Callback for record details API call
	var displayRecord = function(response)
	{
		ui.recordType.innerHTML = response.type;
		if (response.name && response.name.length != 0)
			ui.topLinksTitle.innerHTML += " " + response.name;
		else
			ui.topLinksTitle.innerHTML += " " + response.target;
		ui.deleteButton.disabled = false;
	};

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

		apiDelete("/domains/" + data.params.did + "/records/" + data.params.rid, function(response)
		{
			location.href = "/dns/domain?did=" + data.params.did;
		});
	};

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

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

		// We also need a resource ID
		if (!data.params.rid) {
			alert("No resource ID supplied!");
			return;
		}

		setupHeader();

		// Update links on page to include proper Linode ID
		var anchors = document.getElementsByTagName("a");
		for (var i = 0; i < anchors.length; i++)
			anchors[i].href = anchors[i].href.replace("did=0", "did=" + data.params.did);

		// Get element references
		ui.deleteButton = document.getElementById(elements.deleteButton);
		ui.domainLabel = document.getElementById(elements.domainLabel);
		ui.domainTag = document.getElementById(elements.domainTag);
		ui.domainTagLink = document.getElementById(elements.domainTagLink);
		ui.recordType = document.getElementById(elements.recordType);
		ui.topLinksTitle = document.getElementsByClassName(elements.topLinksTitle)[0];

		// Attach event handlers
		ui.deleteButton.addEventListener("click", handleDelete);

		// Get data from API
		apiGet("/domains/" + data.params.did, displayDetails, null);
		apiGet("/domains/" + data.params.did + "/records/" + data.params.rid, displayRecord, null);
	};

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