prs/prs.mobile/comal.timesheets/Main/App.xaml.cs

using System;
using System.Threading.Tasks;
using Comal.Classes;
using InABox.Clients;
using InABox.Configuration;
using InABox.Core;
using InABox.Mobile;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;
using XF.Material.Forms;
using XF.Material.Forms.Resources;
using XF.Material.Forms.Resources.Typography;
using XF.Material.Forms.UI;
using Xamarin.Essentials;
using SkiaSharp;
using System.Threading;
using System.Linq;
using System.Collections.Generic;

//[assembly: XamlCompilation(XamlCompilationOptions.Compile)]
namespace comal.timesheets
{
    public partial class App : Application
    {
        public static string DeviceString = "";
        public static bool IsUserLoggedIn => ClientFactory.UserGuid != Guid.Empty;
        public static void LogoutUser()
        {
            ClientFactory.InvalidateUser();
        }

        public static LocationServices GPS { get; } = new LocationServices() { ScanDelay = new TimeSpan(0, 1, 0) };

        public static Bluetooth Bluetooth { get; } = new Bluetooth() { ScanDelay = new TimeSpan(0, 1, 0) };

        public static DataModel Data { get; } = new DataModel();

        public static bool IsInForeground { get; set; } = false;

        public const string MessageOnStart = "OnStart";
        public const string MessageOnSleep = "OnSleep";
        public const string MessageOnResume = "OnResume";

        public static ConnectionSettings Settings = null;
        public static DatabaseSettings DBSettings = null;

        public App()
        {
            InitializeComponent();
            LoadAll();
        }

        private void LoadAll(bool reload = false)
        {
            try
            {
                InitAndRegister();

                LoadSettings();

                SaveSettings();

                SetupClient();

                FinishSetup();

                LaunchLoginPage();
            }
            catch
            {
                LaunchLoginPage();
            }
        }

        private void LaunchLoginPage()
        {
            MainPage = new MaterialNavigationPage(new PINLoginPage());
        }

        private void FinishSetup()
        {
            GlobalVariables.InternalOnAppearing = true;
            GlobalVariables.ChangeUser = false;

            RunTimers();
        }

        private void SetupClient()
        {
            if (CheckLoadFromLink())
                return;

            string result = "";

            while (string.IsNullOrWhiteSpace(result))
                result = TryPing();

            TrySetClientType(result);
        }

        private void TrySetClientType(string result)
        {
            try
            {
                ClientFactory.SetClientType(typeof(JsonClient<>), "TimeBench", MobileUtils.AppVersion.InstalledVersionNumber + App.DeviceString, result, true);
            }
            catch (Exception ex)
            {
                var log = new MobileLogging(LogType.BackgroundProcess, "Client Factory SetClientType", ex.Message + ex.StackTrace, this.GetType().Name);
                TrySetClientType(result);
            }
        }

        private string TryPing()
        {         
            try 
            {
                return JsonClient<User>.Ping(App.DBSettings.URLs, out DatabaseInfo info);
            }
            catch (Exception ex)
            {
                var log = new MobileLogging(LogType.BackgroundProcess, "JsonClient.Ping()", ex.Message + ex.StackTrace, this.GetType().Name);
            }
            return "";
        }

        private bool CheckLoadFromLink()
        {
            if (!string.IsNullOrWhiteSpace(GlobalVariables.LoadFromLinkString))
            {
                MobileUtils.LoadFromLink();
                return true;
            }
            return false;
        }

        private void SaveSettings()
        {
            try
            {
                new LocalConfiguration<DatabaseSettings>().Save(DBSettings);
                MobileUtils.SaveToSecureStorage();
            }
            catch { }
        }


        private void LoadSettings()
        {
            try
            {
                Settings = new LocalConfiguration<ConnectionSettings>().Load();

                DBSettings = new LocalConfiguration<DatabaseSettings>().Load();

                if (!string.IsNullOrWhiteSpace(Settings.UserID) && string.IsNullOrWhiteSpace(DBSettings.UserID))
                    DBSettings.UserID = Settings.UserID;
                if (!string.IsNullOrWhiteSpace(Settings.Password) && string.IsNullOrWhiteSpace(DBSettings.Password))
                    DBSettings.Password = Settings.Password;
            }
            catch { }
        }

        private void InitAndRegister()
        {
            try
            {
                Material.Init(this);

                Material.Use("Material.Configuration");

                MobileUtils.Init();
                CoreUtils.RegisterClasses();
                ComalUtils.RegisterClasses();

                FindDeviceInfo();
            }
            catch { }
        }

        private void RunTimers()
        {
            try
            {
                GPS.GetLocation();
            }
            catch
            {

            }

            try
            {
                Bluetooth.ScanForDevices();
            }
            catch { }

            try
            {
                Device.StartTimer(new TimeSpan(0, 0, 30), () =>
                {
                    if (App.IsInForeground)
                    {
                        GPS.GetLocation();
                    }
                    return true;
                });

                Device.StartTimer(new TimeSpan(0, 0, 30), () =>
                {
                    if (App.IsInForeground)
                    {
                        Bluetooth.ScanForDevices();
                    }
                    return true;
                });
            }
            catch { }
        }

        private async void TryLoadFromSecureCache()
        {
            try
            {
                Settings.URL = await SecureStorage.GetAsync(GlobalVariables.CacheURLString);
                Settings.Port = int.Parse(await SecureStorage.GetAsync(GlobalVariables.CachePortString));
                Settings.UserID = await SecureStorage.GetAsync(GlobalVariables.CacheUserIDString);
                Settings.Password = await SecureStorage.GetAsync(GlobalVariables.CachePasswordString);
            }
            catch { }
        }

        private void FindDeviceInfo()
        {
            try
            {
                var idiom = DeviceInfo.Idiom;
                if (Device.RuntimePlatform.Equals(Device.iOS))
                {
                    if (idiom.Equals(DeviceIdiom.Phone))
                    {
                        DeviceString = "i";
                    }
                    else if (idiom.Equals(DeviceIdiom.Tablet))
                    {
                        DeviceString = "I";
                    }
                }
                else if (Device.RuntimePlatform.Equals(Device.Android))
                {
                    if (idiom.Equals(DeviceIdiom.Phone))
                    {
                        DeviceString = "a";
                    }
                    else if (idiom.Equals(DeviceIdiom.Tablet))
                    {
                        DeviceString = "A";
                    }
                }
                GlobalVariables.DeviceString = DeviceString;
            }
            catch { }
        }

        protected override void OnStart()
        {
            MessagingCenter.Send<App>(this, MessageOnStart);
            IsInForeground = true;

        }

        protected override void OnSleep()
        {
            MessagingCenter.Send<App>(this, MessageOnSleep);
            IsInForeground = false;
        }

        protected override void OnResume()
        {
            MessagingCenter.Send<App>(this, MessageOnResume);
            IsInForeground = true;
        }
    }

    public class ConnectionSettings : ILocalConfigurationSettings
    {
        public string URL { get; set; }
        public int Port { get; set; }
        public SerializerProtocol Protocol { get; set; }
        public string UserID { get; set; }
        public string Password { get; set; }

    }
}