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

(function()
{
	// Element names specific to this page
	elements.callback = "callback";
	elements.label = "label";
	elements.pub = "public";
	elements.saveButton = "save-button";
	elements.thumbnail = "thumbnail";

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

	// Static references to UI elements
	var ui = {};
	ui.callback = {};
	ui.label = {};
	ui.pub = {};
	ui.saveButton = {};
	ui.thumbnail = {};

	// Temporary state
	var state = {};
	state.sentApp = false;
	state.sentThumb = false;

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

		ui.label.value = data.app.label;
		ui.callback.value = data.app.redirect_uri;
		ui.pub.checked = data.app.public;
		ui.saveButton.disabled = false;
	};

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

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

		if (data.params.aid != "0") {
			if (ui.thumbnail.files.length && ui.thumbnail.files[0].type.startsWith("image/")) {
				apiPut("/account/oauth-clients/" + data.params.aid + "/thumbnail", ui.thumbnail.files[0], function(response)
				{
					state.sentThumb = true;
					if (state.sentApp)
						location.href = "/account/oauth_apps";
				});
			} else {
				state.sentThumb = true;
			}
			apiPut("/account/oauth-clients/" + data.params.aid, req, function(response)
			{
				state.sentApp = true;
				if (state.sentThumb)
					location.href = "/account/oauth_apps";
			});
		} else {
			req.public = ui.pub.checked;
			apiPost("/account/oauth-clients", req, function(response)
			{
				alert("Here is your client secret! Store it securely, as it won't be shown again.\n" + response.secret);
				if (ui.thumbnail.files.length && ui.thumbnail.files[0].type.startsWith("image/")) {
					apiPut("/account/oauth-clients/" + response.id + "/thumbnail", ui.thumbnail.files[0], function(response)
					{
						location.href = "/account/oauth_apps";
					});
				} else {
					location.href = "/account/oauth_apps";
				}
			});
		}

		ui.saveButton.disabled = true;
	};

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

		// Assume 0 if no app ID supplied
		if (!data.params.aid)
			data.params.aid = "0";

		setupHeader();

		// Get element references
		ui.callback = document.getElementById(elements.callback);
		ui.label = document.getElementById(elements.label);
		ui.pub = document.getElementById(elements.pub);
		ui.saveButton = document.getElementById(elements.saveButton);
		ui.thumbnail = document.getElementById(elements.thumbnail);

		// Fetch app details if specified
		if (data.params.aid != "0") {
			apiGet("/account/oauth-clients/" + data.params.aid, displayApp, null);
		} else {
			ui.pub.disabled = false;
			ui.saveButton.disabled = false;
		}

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

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