using Android.App;
using Android.Content;
using Android.Content.PM;
using Android.Content.Res;
using Android.Media;
using Android.OS;
using System;
using Xamarin.Forms;
using XXCpzs.Droid.Services;
using XXCpzs.Services;

[assembly: Dependency(typeof(CommonService))]
namespace XXCpzs.Droid.Services
{
    public class CommonService : ICommonService
    {
        public string GetVersion()
        {
            string version = "1.00";
            try
            {
                PackageManager packageManager = MainActivity.Instance.PackageManager;
                // getPackageName()是你当前类的包名，0代表是获取版本信息     
                PackageInfo packInfo = packageManager.GetPackageInfo(MainActivity.Instance.PackageName, 0);

                version = packInfo.VersionName;
            }
            catch (PackageManager.NameNotFoundException e)
            {
                //  e.printStackTrace();
            }
            return version;
        }
        public void CloseApp()
        {
            //App.Current.Quit();
            Process.KillProcess(Process.MyPid());
        }
        public void UpdateApp(string DownloadUrl)
        {

            var thread = new System.Threading.Thread(new System.Threading.ThreadStart(() =>
            {

                //更新方式1
                FileDownload.DownloadUpdateFile(MainActivity.Instance, DownloadUrl);
                //更新方式2
                //DownloadUpdateFile2(context, upadtePackageAddress);
            }))
            {
                IsBackground = true
            };
            thread.Start();

        }
        // Unique ID for our notification: 
        static readonly int NOTIFICATION_ID = 1000;
        static readonly string CHANNEL_ID = "location_notification";
        internal static readonly string COUNT_KEY = "count";

        // Number of times the button is tapped (starts with first tap):
        int count = 1;
        public void SendNotity(string title, string content)
        {
            // 将当前按钮按下计数值传递给下一个活动:
            var valuesForActivity = new Bundle();
            valuesForActivity.PutInt(COUNT_KEY, count);

            //当用户单击通知时，将启动第二个活动。
            var resultIntent = new Intent(MainActivity.mContext, typeof(MainActivity));

            // 将一些值传递给 Activity
            resultIntent.PutExtras(valuesForActivity);

            // 构建跨任务导航的后堆栈:
            var stackBuilder = TaskStackBuilder.Create(MainActivity.mContext);
            stackBuilder.AddParentStack(Java.Lang.Class.FromType(typeof(MainActivity)));
            stackBuilder.AddNextIntent(resultIntent); 
            
            var resultPendingIntent = stackBuilder.GetPendingIntent(0,  PendingIntentFlags.UpdateCurrent);

            // 使用后堆栈创建PendingEntent
            var builder = new Android.Support.V4.App.NotificationCompat.Builder(MainActivity.mContext, CHANNEL_ID)
                          .SetAutoCancel(true) // 当用户单击通知时，从通知区域中取消通知
                          .SetContentIntent(resultPendingIntent) // 当用户单击意图时启动此活动。
                          .SetContentTitle("Button Clicked") // 设置标题
                          .SetNumber(count) //在内容信息中显示计数
                          .SetSmallIcon(Resource.Drawable.ico) // 这是要显示的图标
                          .SetContentText($"The button has been clicked {count} times."); // 要显示的消息。

            // 最后，发布通知
            var notificationManager = Android.Support.V4.App.NotificationManagerCompat.From(MainActivity.mContext);
            notificationManager.Notify(NOTIFICATION_ID, builder.Build());

            // 增加按钮按下次数
            count++;
        }

        void CreateNotificationChannel()
        {
            if (Build.VERSION.SdkInt < BuildVersionCodes.O)
            {
                //通知通道在API 26中是新的（不是 支持库）。不需要创建通知

                //Android旧版本上的频道。
                return;
            }

            //var name = Resources.GetString(Resource.String.channel_name);
            //var description =MainActivity.Instance. GetString("The count from MainActivity.");
            var channel = new NotificationChannel(CHANNEL_ID, "Local Notifications", NotificationImportance.Default)
            {
                Description = "The count from MainActivity."
            };
            var notificationManager = (NotificationManager)MainActivity.mContext. GetSystemService(Context. NotificationService);
            notificationManager.CreateNotificationChannel(channel);
        }


    }
}