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

(function()
{
	// Element names specific to this page
	elements.domain = "domain";
	elements.domainLabel = "domain-label";
	elements.domainTag = "domain-tag";
	elements.domainTagLink = "domain-tag-link";
	elements.masters = "masters";
	elements.saveButton = "save-button";
	elements.tags = "tags";
	elements.transfers = "transfers";

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

	// Static references to UI elements
	var ui = {};
	ui.domain = {};
	ui.domainLabel = {};
	ui.domainTag = {};
	ui.domainTagLink = {};
	ui.masters = {};
	ui.saveButton = {};
	ui.tags = {};
	ui.transfers = {};

	// Callback for domain details API call
	var displayDetails = function(response)
	{
		data.domain = response;

		// Redirect if this is a master zone
		if (data.domain.type == "master") {
			location.href = "/dns/domain?did=" + data.domain.id;
			return;
		}

		// Set page title and header stuff
		document.title += " // " + data.domain.domain;
		ui.domainLabel.innerHTML = data.domain.domain;
		if (data.domain.tags.length == 1) {
			ui.domainTagLink.href = "/dns?tag=" + data.domain.tags[0];
			ui.domainTagLink.innerHTML = "(" + data.domain.tags[0] + ")";
			ui.domainTag.style.display = "inline";
		}

		// Set form info
		ui.domain.value = data.domain.domain;
		ui.tags.value = data.domain.tags.join(",");
		ui.masters.value = data.domain.master_ips.join("\n");
		ui.transfers.value = data.domain.axfr_ips.join("\n");

		ui.saveButton.disabled = false;
	};

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

		// This request can take a few seconds,
		// so disable the button to prevent antsy users from double-submitting
		ui.saveButton.disabled = true;

		var req = {
			"domain": ui.domain.value,
			"tags": [],
			"master_ips": [],
			"axfr_ips": []
		};

		if (ui.tags.value.length)
			req.tags = ui.tags.value.split(",");
		if (ui.masters.value.length)
			var masterLines = ui.masters.value.split("\n");
			for (var i = 0; i < masterLines.length; i++)
				req.master_ips = req.master_ips.concat(masterLines[i].split(";"));
		if (ui.transfers.value.length) {
			var transferLines = ui.transfers.value.split("\n");
			for (var i = 0; i < transferLines.length; i++)
				req.axfr_ips = req.axfr_ips.concat(transferLines[i].split(";"));
		}

		apiPut("/domains/" + data.params.did, req, function(response)
		{
			location.href = "/dns";
		});
	};

	// 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;
		}

		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.domain = document.getElementById(elements.domain);
		ui.domainLabel = document.getElementById(elements.domainLabel);
		ui.domainTag = document.getElementById(elements.domainTag);
		ui.domainTagLink = document.getElementById(elements.domainTagLink);
		ui.masters = document.getElementById(elements.masters);
		ui.saveButton = document.getElementById(elements.saveButton);
		ui.tags = document.getElementById(elements.tags);
		ui.transfers = document.getElementById(elements.transfers);

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

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

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