using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using IntegrationTests.Properties;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium.IE;
using OpenQA.Selenium.Support.UI;

namespace IntegrationTests.Helpers
{
    [Serializable]
    public enum Browsers
    {
        [Description("Windows Internet Explorer")]
        InternetExplorer,

        [Description("Mozilla Firefox")]
        Firefox,

        [Description("Google Chrome")]
        Chrome
    }

    public static class Browser
    {
        //public static Browsers SelectedBrowser
        //{
        //    get { return Settings.Default.Browser; }
        //}
        //private static IWebDriver _webDriver;
        //private static string _mainWindowHandler;
        //private static IWebDriver WebDriver
        //{
        //    get { return _webDriver ?? StartWebDriver(); }
        //}
        //private static IWebDriver StartWebDriver()
        //{
        //    //TODO: ensure it is not required
        //    //Contract.Ensures(Contract.Result<IWebDriver>() != null);

        //    if (_webDriver != null) return _webDriver;

        //    switch (SelectedBrowser)
        //    {
        //        case Browsers.InternetExplorer:
        //            _webDriver = StartInternetExplorer();
        //            break;
        //        case Browsers.Firefox:
        //            _webDriver = StartFirefox();
        //            break;
        //        case Browsers.Chrome:
        //            _webDriver = StartChrome();
        //            break;
        //        default:
        //            throw new Exception(string.Format("Unknown browser selected: {0}.", SelectedBrowser));
        //    }

        //    _webDriver.Manage().Window.Maximize();
        //    _mainWindowHandler = _webDriver.CurrentWindowHandle;

        //    return WebDriver;
        //}
        public static object ExecuteJavaScript(IWebDriver driver, string javaScript, params object[] args)
        {
            var javaScriptExecutor = (IJavaScriptExecutor)driver;

            return javaScriptExecutor.ExecuteScript(javaScript, args);
        }
        private static InternetExplorerDriver StartInternetExplorer()
        {
            var internetExplorerOptions = new InternetExplorerOptions
            {
                IntroduceInstabilityByIgnoringProtectedModeSettings = true,
                InitialBrowserUrl = "about:blank",
                EnableNativeEvents = true
            };

            return new InternetExplorerDriver(Directory.GetCurrentDirectory(), internetExplorerOptions);
        }

        private static FirefoxDriver StartFirefox()
        {
            var firefoxProfile = new FirefoxProfile
            {
                AcceptUntrustedCertificates = true,
                EnableNativeEvents = true
            };

            return new FirefoxDriver(firefoxProfile);
        }

        private static ChromeDriver StartChrome()
        {
            var chromeOptions = new ChromeOptions();
            //TODO: ensure that we dont need to delete data folder
            //var defaultDataFolder = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\..\Local\Google\Chrome\User Data\Default";

            //if (Directory.Exists(defaultDataFolder))
            //{
            //    Executor.Try(() => DirectoryExtension.ForceDelete(defaultDataFolder));
            //}

            return new ChromeDriver(Directory.GetCurrentDirectory(), chromeOptions);
        }

        public static void WaitForPageLoad(IWebDriver driver, int seconds2Wait)
        {
            var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(seconds2Wait));
            wait.Until(webDriver => ((IJavaScriptExecutor)webDriver).ExecuteScript("return document.readyState").Equals("complete"));
        }
        public static void WaitForAjax(IWebDriver driver)
        {
            while (true) // Handle timeout somewhere
            {
                var ajaxIsComplete = (bool)((IJavaScriptExecutor)driver).ExecuteScript("return (typeof($) === 'undefined') ? true : !$.active;");
                if (ajaxIsComplete)
                    break;
                Thread.Sleep(100);
            }
        }

        public static bool SelectOptionByText(IWebDriver driver, string selectId, string optionText)
        {
            var select = driver.FindElement(By.Id(selectId));
            var options = select.FindElements(By.TagName("option"));
            foreach (var option in options.Where(option => option.Text.Equals(optionText)))
            {
                option.Click();
                return true;
            }
            return false;
        }
        public static bool SelectOptionByValue(IWebDriver driver, string selectId, string optionValue)
        {
            var select = driver.FindElement(By.Id(selectId));
            var options = select.FindElements(By.TagName("option"));
            foreach (var option in options.Where(option => option.GetAttribute("value").Equals(optionValue)))
            {
                option.Click();
                return true;
            }
            return false;
        }
    }
}