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
    {
        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()
        {
            LoadAll();
        }

        private void LoadAll(bool reload = false)
        {
            try
            {
                Material.Init(this);
                InitializeComponent();
                Material.Use("Material.Configuration");

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

                FindDeviceInfo();

                Settings = new LocalConfiguration<ConnectionSettings>().Load();

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

                if (DBSettings.URLs.Count() == 0 || string.IsNullOrWhiteSpace(DBSettings.URLs[0]))
                {
                    if (string.IsNullOrWhiteSpace(Settings.URL))
                        TryLoadFromSecureCache();

                    if (string.IsNullOrWhiteSpace(Settings.URL))
                        MobileUtils.LoadDemoSettings(DBSettings);
                    else
                    {                        
                        if (Settings.URL.ToUpper().Contains("COM-AL"))
                        {
                            List<string> list = new List<string>();
                            list.Add("http://remote.com-al.com.au:" + Settings.Port);
                            list.Add("http://remote2.com-al.com.au:" + Settings.Port);
                            list.Add("http://remote3.com-al.com.au:" + Settings.Port);

                            DBSettings.URLs = list.ToArray();
                        }
                        DBSettings.UserID = Settings.UserID;
                        DBSettings.Password = Settings.Password;
                    }                    
                }
                
                if (DBSettings.URLs.Count() > 0)
                {
                    if (DBSettings.URLs[0].ToUpper().Contains("COM-AL"))
                    {
                        List<string> list = new List<string>();
                        list.Add("http://remote.com-al.com.au:" + Settings.Port);
                        list.Add("http://remote2.com-al.com.au:" + Settings.Port);
                        list.Add("http://remote3.com-al.com.au:" + Settings.Port);

                        DBSettings.URLs = list.ToArray();
                    }
                    new LocalConfiguration<DatabaseSettings>().Save(DBSettings);
                    MobileUtils.SaveToSecureStorage();
                }

                //if (!string.IsNullOrWhiteSpace(GlobalVariables.LoadFromLinkString))
                //{
                //    MobileUtils.LoadFromLink();
                //}

                var result = JsonClient<User>.Ping(DBSettings.URLs, out DatabaseInfo info);

                ClientFactory.SetClientType(typeof(JsonClient<>), "TimeBench", MobileUtils.AppVersion.InstalledVersionNumber + deviceString, result, true);

                GlobalVariables.InternalOnAppearing = true;
                GlobalVariables.ChangeUser = false;

                if (!reload)
                    RunTimers();

                MainPage = new MaterialNavigationPage(new PINLoginPage());
            }
            catch
            {
                Thread.Sleep(1000);
                LoadAll(true);
            }
        }

        private void RunTimers()
        {
            Task.Run(() =>
            {
                GPS.GetLocation();

                Bluetooth.ScanForDevices();

                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;
                });
            });
        }

        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; }

    }
}