using System;
using System.Diagnostics;
using System.IO;
using System.Threading.Tasks;
using Android;
using Android.App;
using Android.Content.PM;
using Android.OS;
using Android.Runtime;
using InABox.Mobile.Android;
using Xamarin.Forms;
using Plugin.LocalNotification;
using Android.Content;
using Environment = System.Environment;

namespace comal.timesheets.Droid
{
    [Activity(Name = "PRS.Mobile.Droid.MainActivity", Label = "TimeBench", Icon = "@mipmap/icon", Theme = "@style/MainTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize, ScreenOrientation = Android.Content.PM.ScreenOrientation.Portrait)]
    [IntentFilter(new[] { Android.Content.Intent.ActionView },
                       AutoVerify = true,
                       Categories = new[]
                       {
                            Android.Content.Intent.CategoryDefault,
                            Android.Content.Intent.CategoryBrowsable
                       },
                       DataScheme = "http",
                       DataPathPrefix = "/open",
                       DataHost = "www.PRSMobile.com")]

    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
    {

        private readonly string[] Permissions =
        {
            Manifest.Permission.Bluetooth,
            Manifest.Permission.BluetoothAdmin,
            Manifest.Permission.AccessCoarseLocation,
            Manifest.Permission.AccessFineLocation,
            Manifest.Permission.BluetoothScan,
            Manifest.Permission.BluetoothAdvertise,
            Manifest.Permission.BluetoothConnect
        };

        protected override void OnCreate(Bundle savedInstanceState)
        {
            CheckPermissions();

            DependencyService.Register<Version_Android>();

            var data = Intent?.Data?.EncodedAuthority;

            if (!string.IsNullOrWhiteSpace(data))
            {
                try
                {
                    string s = Intent.Data.Path;

                    s = s.Remove(0, 6);
                    GlobalVariables.LoadFromLinkString = s;
                }
                catch { }
                }



            TabLayoutResource = Resource.Layout.Tabbar;
            ToolbarResource = Resource.Layout.Toolbar;

            base.OnCreate(savedInstanceState);

            AppDomain.CurrentDomain.UnhandledException += CurrentDomainOnUnhandledException;
            TaskScheduler.UnobservedTaskException += TaskSchedulerOnUnobservedTaskException;

            LocalNotificationCenter.CreateNotificationChannel(new Plugin.LocalNotification.AndroidOption.NotificationChannelRequest
            {
                Importance = Plugin.LocalNotification.AndroidOption.AndroidImportance.Max,
                LockScreenVisibility = Plugin.LocalNotification.AndroidOption.AndroidVisibilityType.Public,
                ShowBadge = true,
                EnableVibration = true,
                Sound = "requiitemadded.mp3"
            });

            LocalNotificationCenter.NotifyNotificationTapped(Intent);

            global::Xamarin.Forms.Forms.Init(this, savedInstanceState);

            DisplayCrashReport();

            Plugin.CurrentActivity.CrossCurrentActivity.Current.Init(this, savedInstanceState);

            Xamarin.Essentials.Platform.Init(this, savedInstanceState);

            Syncfusion.XForms.Android.PopupLayout.SfPopupLayoutRenderer.Init();

            Xamarin.FormsMaps.Init(this, savedInstanceState);

            ZXing.Net.Mobile.Forms.Android.Platform.Init();

            XF.Material.Droid.Material.Init(this, savedInstanceState);

            LoadApplication(new App());

            Window.SetSoftInputMode(Android.Views.SoftInput.AdjustResize);
        }

        protected override void OnNewIntent(Intent intent)
        {
            LocalNotificationCenter.NotifyNotificationTapped(intent);
            base.OnNewIntent(intent);
        }

        public override void OnRequestPermissionsResult(int requestCode, string[] permissions, Android.Content.PM.Permission[] grantResults)
        {
            global::ZXing.Net.Mobile.Android.PermissionsHandler.OnRequestPermissionsResult(requestCode, permissions, grantResults);

            Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);

            base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
        }

        private void CheckPermissions()
        {
            bool minimumPermissionsGranted = true;

            foreach (string permission in Permissions)
            {
                if (CheckSelfPermission(permission) != Permission.Granted)
                {
                    minimumPermissionsGranted = false;
                }
            }

            // If any of the minimum permissions aren't granted, we request them from the user
            if (!minimumPermissionsGranted)
            {
                RequestPermissions(Permissions, 0);
            }

        }

        #region Error handling
        private static void TaskSchedulerOnUnobservedTaskException(object sender, UnobservedTaskExceptionEventArgs unobservedTaskExceptionEventArgs)
        {
            var newExc = new Exception("TaskSchedulerOnUnobservedTaskException", unobservedTaskExceptionEventArgs.Exception);
            LogUnhandledException(newExc);
        }

        private static void CurrentDomainOnUnhandledException(object sender, UnhandledExceptionEventArgs unhandledExceptionEventArgs)
        {
            var newExc = new Exception("CurrentDomainOnUnhandledException", unhandledExceptionEventArgs.ExceptionObject as Exception);
            LogUnhandledException(newExc);
        }

        internal static void LogUnhandledException(Exception exception)
        {
            try
            {
                const string errorFileName = "Fatal.log";
                var libraryPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal); // iOS: Environment.SpecialFolder.Resources
                var errorFilePath = Path.Combine(libraryPath, errorFileName);

                var errorMessage = "";

                if (File.Exists(errorFilePath))
                {
                    errorMessage = File.ReadAllText(errorFilePath);
                }

                errorMessage = errorMessage + System.Environment.NewLine +  String.Format("Time: {0}\r\nError: Unhandled Exception\r\n{1}",
                DateTime.Now, exception.ToString());
                File.WriteAllText(errorFilePath, errorMessage);

                // Log to Android Device Logging.
                Android.Util.Log.Error("Crash Report", errorMessage);
            }
            catch
            {
                // just suppress any error logging exceptions
            }
        }

        /// <summary>
        // If there is an unhandled exception, the exception information is diplayed 
        // on screen the next time the app is started (only in debug configuration)
        /// </summary>
        [Conditional("DEBUG")]
        private void DisplayCrashReport()
        {
            const string errorFilename = "Fatal.log";
            var libraryPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
            var errorFilePath = Path.Combine(libraryPath, errorFilename);

            if (!File.Exists(errorFilePath))
            {
                return;
            }

            var errorText = File.ReadAllText(errorFilePath);
            new AlertDialog.Builder(this)
                .SetPositiveButton("Clear", (sender, args) =>
                {
                    File.Delete(errorFilePath);
                })
                .SetNegativeButton("Close", (sender, args) =>
                {
                    // User pressed Close.
                })
                .SetMessage(errorText)
                .SetTitle("Crash Report")
                .Show();
        }

        #endregion

    }
}