'use strict';
let bookmarkingTabs = false;

function createFolder(callback) {
	chrome.bookmarks.create({'title': 'Autobookmarked Tabs'}, function(folder) {
		if (chrome.runtime.lastError) {
			setActionStatus('Error bookmarking tabs', 'error', function() {});
			return;
		}
		chrome.storage.local.set({'bookmarksFolder': folder.id});
		callback(folder.id);
	});
}

function getOrCreateFolder(callback) {
	chrome.storage.local.get('bookmarksFolder', function (result) {
		if ('bookmarksFolder' in result) {
			let id = result.bookmarksFolder;
			chrome.bookmarks.get(id, function(result) {
				if (chrome.runtime.lastError) {
					// Bookmark id not valid, create new one
					createFolder(callback);
				} else {
					callback(id);
				}
			});
		} else {
			createFolder(callback);
		}
	});
}

function setActionStatus(title, imageset, callback) {
	chrome.browserAction.setTitle({title: title}, function() {
		chrome.browserAction.setIcon({path: {
			'32': 'icons/' + imageset + '-32.png',
			'48': 'icons/' + imageset + '-48.png',
			'96': 'icons/' + imageset + '-96.png'
		}}, callback);
	});
}

function bookmarkTabs() {
	if (bookmarkingTabs) {
		return;
	}

	bookmarkingTabs = true;

	let now = new Date();
	let dateString = [now.getFullYear().toString(), (now.getMonth() + 1).toString().padStart(2, '0'), now.getDate().toString().padStart(2, '0')].join('-');
	let timeString = [now.getHours().toString().padStart(2, '0'), now.getMinutes().toString().padStart(2, '0')].join(':');
	setActionStatus('Bookmarking tabs…', 'processing', function() {
		getOrCreateFolder(function(rootId) {
			chrome.bookmarks.create({'title': dateString + ' ' + timeString, parentId: rootId}, function(folder) {
				if (chrome.runtime.lastError) {
					setActionStatus('Error bookmarking tabs', 'error', function() {});
					return;
				}
				chrome.tabs.query({}, function(tabs) {
					let remaining = tabs.length;
					for (let tab of tabs) {
						chrome.bookmarks.create({'title': tab.title, url: tab.url, parentId: folder.id}, function() {
							if (chrome.runtime.lastError) {
								setActionStatus('Error bookmarking tabs', 'error', function() {});
								return;
							}

							remaining--;
							if (remaining === 0) {
								bookmarkingTabs = false;
								setActionStatus('Bookmark open tabs', 'icon', function() {});
							}
						});
					}
				});
			});
		});
	});
}

chrome.browserAction.onClicked.addListener(bookmarkTabs);

chrome.runtime.onInstalled.addListener(function () { getOrCreateFolder(function () {}); });