using System;
using UIKit;

namespace Shared
{
    //AVFoundation CoreGraphics UIKit CoreMedia AudioToolbox VideoToolbox GLKit OpenAL MobileCoreServices SystemConfiguration CoreTelephony AVFoundation WebKit
    /// <summary>
    /// UI处理类
    /// </summary>
    public static class Application
    {
        //public static double PhoneType
        //{
        //    get
        //    {
        //        var type = UIDevice.CurrentDevice.SystemVersion.Split(new string[] { "." }, StringSplitOptions.None)[0];
        //        var d = 1.0d;
        //        double.TryParse(type, out d);
        //        return d;
        //    }
        //}

        public enum GpsUseMode
        {
            Always,
            WhenInUse
        }
        public static bool IsGpsEnable = true;
        public static GpsUseMode CurrentGpsUseMode = GpsUseMode.WhenInUse;



        //2019-08-14 修改
        public static double PhoneType
        {
            get
            {
                var device = Xamarin.Essentials.DeviceInfo.Model;
                if (device == null)
                {
                    return 1.0;
                }
                var type = device.Replace("iPhone", "").Split(',')[0];

                double d = 1.0;
                double.TryParse(type, out d);
                return d;
            }
        }

        //public static String PhoneTypeModel
        //{
        //    get
        //    {
        //        var device = UIDevice.CurrentDevice.Model;// .SystemVersion.Split(new string[] { "." }, StringSplitOptions.None)[0];

        //        return device;
        //    }
        //}


        /// <summary>
        /// 获取实际的高度
        /// </summary>
        /// <returns>The real height.</returns>
        /// <param name="height">Height.</param>
        public static int GetRealHeight(int height)
        {
            return (int)(height / HeightScale);
        }

        /// <summary>
        /// 默认的字体大小
        /// </summary>
        public static int FontSize = 18;

        /// <summary>
        /// 获取实际的宽度
        /// </summary>
        /// <returns>The real width.</returns>
        /// <param name="width">Width.</param>
        public static int GetRealWidth(int width)
        {
            return (int)(width / WidthScale);
        }
        /// <summary>
        /// 隐藏软键盘
        /// </summary>
        public static void HideSoftInput()
        {
            if (Shared.EditText.Instance != null)
            {
                Shared.EditText.Instance.Foucs = false;
            }
        }

        /// <summary>
        /// 当前设备类型
        /// </summary>
        public static readonly Device DeviceType = Device.Ios;

        /// <summary>
        /// 获取最小比例的实际值
        /// </summary>
        /// <returns>The minimum real.</returns>
        /// <param name="widthOrHeight">Width or height.</param>
        public static int GetMinReal(int widthOrHeight)
        {
            return (int)(widthOrHeight / MinScale);
        }

        /// <summary>
        /// 获取平均实际值
        /// </summary>
        /// <returns>The minimum real average.</returns>
        /// <param name="widthOrHeight">Width or height.</param>
        public static int GetMinRealAverage(int widthOrHeight)
        {
            return (int)(widthOrHeight / AverageScale);
        }

        /// <summary>
        /// 主线程执行指定事件
        /// </summary>
        /// <param name="action">Action.</param>
        public static void RunOnMainThread(Action action)
        {
            if (System.Threading.Thread.CurrentThread.ManagedThreadId == mainThreadId)
            {
                action();
            }
            else
            {
                RootFrameLayout.InvokeOnMainThread(action);
            }
        }

        public static bool IsWifi {
            get {
                return MyReachability.InternetConnectionStatus() == MyNetworkStatus.ReachableViaWiFiNetwork;
            }
        }

        /// <summary>
        /// 当前设备的宽度
        /// </summary>
        public static int CurrentWidth;
        /// <summary>
        /// 当前设备的高度
        /// </summary>
        public static int CurrentHeight;


        /// <summary>
        /// 宽度比例
        /// </summary>
        /// <value>The width scale.</value>
        public static float WidthScale
        {
            get
            {
                return DesignWidth * 1.0f / CurrentWidth;
            }
        }

        /// <summary>
        /// 高度比例
        /// </summary>
        /// <value>The height scale.</value>
        public static float HeightScale
        {
            get
            {
                //return Application.CurrentHeight / bigsize;
                return DesignHeight * 1.0f / CurrentHeight;
            }
        }

        /// <summary>
        /// 最小比例
        /// </summary>
        /// <value>The minimum scale.</value>
        public static float MinScale
        {
            get
            {
                return WidthScale < HeightScale ? WidthScale : HeightScale;
            }
        }

        /// <summary>
        /// 平均比例
        /// </summary>
        /// <value>The average scale.</value>
        public static float AverageScale
        {
            get
            {
                return (WidthScale + HeightScale)/2;
            }
        }


        /// <summary>
        ///  设计宽度 
        /// </summary>
        public static int DesignWidth=1920;
        /// <summary>
        /// 设计高度
        /// </summary>
        public static int DesignHeight=1136;


//        CoreGraphics.CGRect screenRect = [[UIScreen mainScreen] bounds];
//CoreGraphics.CGSize screenSize = screenRect.size;


        /// <summary>
        /// 当前主页
        /// </summary>
        /// <value>The main page.</value>
        public static Shared.FrameLayout MainPage
        {
            get;
            private set;
        }

        static int mainThreadId;
        static UIView rootFrameLayout;
        /// <summary>
        /// 根容器视图
        /// </summary>
        /// <value>The root frame layout.</value>
        public static UIView RootFrameLayout
        {
            get
            {
                return rootFrameLayout;
            }
            set
            {
                mainThreadId = System.Threading.Thread.CurrentThread.ManagedThreadId;
                rootFrameLayout = value;
                CurrentWidth = (int)value.Frame.Width;
                Console.WriteLine ("3========" + CurrentWidth);
                CurrentHeight = (int)value.Frame.Height;

                MainPage = new FrameLayout(value) { Width = (int)value.Frame.Width, Height = (int)value.Frame.Height, Parent = new RootView() { Width = (int)value.Frame.Width, Height = (int)value.Frame.Height } };
                MainPage.Refresh();
            }
        }

        /// <summary>
        /// 数据文件根目录
        /// </summary>
        /// <value>The root path.</value>
        public static  string RootPath=System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal)+"/";    

        /// <summary>
        ///  图片的根目录
        /// </summary>
        /// <value>The root path image.</value>
        public static string  RootPathImage
        {
            get
            {
                return RootPath + "Phone/";
            }
        }
            
        /// <summary>
        /// 是否是pad
        /// </summary>
        public static bool IsPad {
            get {
                return false;
                //return UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Pad;
            }
        }


        /// <summary>
        /// 皮肤，null时表示用默认的
        /// </summary>
        public static string Skin;
        /// <summary>
        /// GPS位置变化事件
        /// </summary>
        public static Action<double, double> LocationAction;


        //获取当前屏幕显示的viewcontroller
        public static UIViewController currentVC
        {
            get
            {
                var rootViewController = UIApplication.SharedApplication.KeyWindow.RootViewController;
                var currentVC = getCurrentVCFrom(rootViewController);
                return currentVC;
            }
        }

        static UIViewController getCurrentVCFrom(UIViewController rootVC)
        {
            UIViewController currentVC;
            if (rootVC.PresentedViewController != null)
            {
                // 视图是被presented出来的
                rootVC = rootVC.PresentedViewController;
            }
            if (rootVC.GetType() == typeof(UITabBarController))
            {
                // 根视图为UITabBarController
                currentVC = getCurrentVCFrom((rootVC as UITabBarController).SelectedViewController);
            }
            else if (rootVC.GetType() == typeof(UINavigationController))
            {
                // 根视图为UINavigationController
                currentVC = getCurrentVCFrom((rootVC as UINavigationController).VisibleViewController);
            }
            else
            {
                // 根视图为非导航类
                currentVC = rootVC;
            }
            return currentVC;
        }
    }
}