prs/prs.mobile/comal.timesheets/Main/MainPageUtils.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Xamarin.Forms;
using InABox.Core;
using InABox.Configuration;
using InABox.Clients;
using InABox.Mobile;
using Comal.Classes;
using XF.Material.Forms.UI.Dialogs;
using comal.timesheets.CustomControls;
using comal.timesheets.StoreRequis;
using PRSSecurity = InABox.Core.Security;
using Plugin.LocalNotification;
using comal.timesheets.Tasks;
using System.IO;
using static comal.timesheets.CustomControls.JobShell;
using static Android.Graphics.Paint;

namespace comal.timesheets
{
    public delegate void MainPageNotificationsChanged();
    public static class MainPageUtils
    {
        public static Assignment CurrentAssignment = null;
        public static JobShell Job = new JobShell();
        public static int NumberOfNotifications = 0;
        public static event MainPageNotificationsChanged OnMainPageNotificationsChanged;
        public static Assignment CheckCurrentAssignment()
        {
            Thread.Sleep(5000);
            StartAssignmentTimer();

            CoreTable table = new Client<Assignment>().Query(
                     new Filter<Assignment>(x => x.EmployeeLink.ID).IsEqualTo(GlobalVariables.EmpID)
                     .And(x => x.Date).IsEqualTo(DateTime.Today.Date)
                     .And(x => x.Actual.Finish).IsEqualTo(null),
                     null,
                     new SortOrder<Assignment>(x => x.Actual.Start, SortDirection.Ascending));
            if (!table.Rows.Any())
            {
                Job.OnJobIDChanged += OnJobIDChanged;
                return null;
            }
            else
                return table.Rows.LastOrDefault().ToObject<Assignment>();

        }

        private static void StartAssignmentTimer()
        {
            Timer t = new Timer(AssignmentTimerCallback, null, 300000, 300000);
        }

        private static void AssignmentTimerCallback(object state)
        {
            if (CurrentAssignment != null)
                SaveCurrentAssignment("PRS Mobile main screen - Saving assignment on 5 minute timer");
        }

        public static void SaveCurrentAssignment(string auditnote, bool complete = false)
        {
            if (!complete)
                CurrentAssignment.Booked.Finish = RoundToNearestInterval(DateTime.Now, new TimeSpan(0, 5, 0)).TimeOfDay;
            else
                CurrentAssignment.Actual.Finish = RoundToNearestInterval(DateTime.Now, new TimeSpan(0, 5, 0)).TimeOfDay;

            new Client<Assignment>().Save(CurrentAssignment, auditnote);
        }

        static DateTime RoundToNearestInterval(DateTime dt, TimeSpan d)
        {
            int f = 0;
            double m = (double)(dt.Ticks % d.Ticks) / d.Ticks;
            if (m >= 0.5)
                f = 1;
            return new DateTime(((dt.Ticks / d.Ticks) + f) * d.Ticks);
        }

        public static void UseCurrentAssignment(Assignment assgn)
        {
            CurrentAssignment = assgn;
            SaveCurrentAssignment("PRS Mobile main screen - saving assignment on re-login to App");
            if (CurrentAssignment.JobLink.ID != Guid.Empty)
            {
                Job.ID = CurrentAssignment.JobLink.ID;
                var job = new Client<Job>().Query(new Filter<Job>(x => x.ID).IsEqualTo(Job.ID)).Rows.FirstOrDefault().ToObject<Job>();
                Job.JobNumber = job.JobNumber;
                Job.Name = job.Name;
                Job.OnJobIDChanged += OnJobIDChanged;
            }
        }

        public static void OnJobIDChanged(Guid jobid)
        {
            if (CurrentAssignment == null)
                CreateNewAssignment(jobid);

            else
            {
                SaveCurrentAssignment("PRS Mobile main screen - saving assignment on job change", true);
                CreateNewAssignment(jobid);
            }
        }

        private static void CreateNewAssignment(Guid jobid)
        {
            CurrentAssignment = new Assignment { Date = DateTime.Now.Date };
            CurrentAssignment.EmployeeLink.ID = GlobalVariables.EmpID;
            CurrentAssignment.JobLink.ID = jobid;
            CurrentAssignment.Actual.Start = RoundToNearestInterval(DateTime.Now, new TimeSpan(0, 5, 0)).TimeOfDay;
            CurrentAssignment.Booked.Start = CurrentAssignment.Actual.Start;
            CurrentAssignment.Booked.Finish = RoundToNearestInterval(DateTime.Now, new TimeSpan(0, 5, 0)).TimeOfDay.Add(new TimeSpan(0, 5, 0));
            var job = new Client<Job>().Query(new Filter<Job>(x => x.ID).IsEqualTo(jobid)).Rows.FirstOrDefault().ToObject<Job>();
            CurrentAssignment.Title = "Clocking on to job " + job.Name + " (" + job.JobNumber + ") on PRS Mobile";
            new Client<Assignment>().Save(CurrentAssignment, "Changed job on mobile - creating new assignment");
        }

        #region Notifications

        public static Page DetermineCorrectPage(Plugin.LocalNotification.EventArgs.NotificationActionEventArgs e)
        {
            string data = e.Request.ReturningData;
            int index = data.IndexOf("$");
            Guid ID = Guid.Parse(data.Remove(index));
            string type = data.Substring(index + 1);
            if (type == "Comal.Classes.Kanban")
                return new AddEditTask(ID);
            else if (type == "Comal.Classes.Delivery")
                return new DeliveryDetails(ID);
            else 
                return null;
        }

        public static async void SearchForNewNotifications()
        {
            //notifications poll reliably in the background for Anroid, unreliable for iOS due to difficulty with cross-platform plugins for notifications
            try
            {
                await Task.Run(() =>
                {
                    if (ClientFactory.UserGuid != Guid.Empty)
                    {
                        CoreTable table = new Client<Notification>().Query
                        (new Filter<Notification>(x => x.Employee.UserLink.ID).IsEqualTo(ClientFactory.UserGuid).And(X => X.Closed).IsEqualTo(DateTime.MinValue),
                            new Columns<Notification>(
                                   x => x.ID, //0
                                   x => x.Sender.Name, //1   
                                   x => x.Title, //2
                                   x => x.Created, //3
                                   x => x.Description, //4
                                   x => x.EntityType, //5
                                   x => x.EntityID //6
                                   )
                        );
                        if (NumberOfNotifications == table.Rows.Count()) //no new notifications or none present at all
                            return;
                        else //new notifications or previous notifications have now been dismissed
                        {
                            NumberOfNotifications = table.Rows.Count();
                            OnMainPageNotificationsChanged?.Invoke();                          
                            CheckNotificationsPushed(table);
                        }
                    }
                });
            }
            catch { }
        }

        private static void CheckNotificationsPushed(CoreTable table)
        {
            try
            {
                if (!Application.Current.Properties.ContainsKey("LastPushedNotifications"))
                {
                    Application.Current.Properties.Add("LastPushedNotifications", DateTime.Now);
                }
                DateTime lastPushed = DateTime.Parse(Application.Current.Properties["LastPushedNotifications"].ToString());
                List<NotificationShell> toNotify = new List<NotificationShell>();
                foreach (CoreRow row in table.Rows)
                {
                    List<object> list = row.Values;
                    DateTime created = DateTime.Parse(list[3].ToString());
                    if (created > new DateTime(2022, 8, 22)) // prevent spam from buildup of old notifications before this is released
                    {
                        if (created > lastPushed)
                        {
                            if (list[1] == null) list[1] = "";
                            if (list[2] == null) list[2] = "";
                            if (list[3] == null) list[3] = DateTime.MinValue;
                            if (list[4] == null) list[4] = "";
                            if (list[5] == null) list[5] = "";
                            if (list[6] == null) list[6] = Guid.Empty;

                            NotificationShell shell = new NotificationShell
                            {
                                ID = Guid.Parse(list[0].ToString()),
                                Sender = list[1].ToString(),
                                Title = list[2].ToString(),
                                Created = DateTime.Parse(list[3].ToString()),
                                EntityType = list[5].ToString(),
                                EntityID = Guid.Parse(list[6].ToString())
                            };
                            toNotify.Add(shell); //add notification to be pushed
                        }
                    }
                }
                if (toNotify.Count > 0)
                    PushNotificationsAsync(toNotify);
            }
            catch { }
        }

        private static async Task PushNotificationsAsync(List<NotificationShell> shells)
        {
            try
            {
                int count = 1;

                foreach (NotificationShell shell in shells)
                {
                    var notification = new NotificationRequest
                    {
                        BadgeNumber = 1,
                        Description = shell.Title,
                        Title = "New PRS Notification: ",
                        ReturningData = shell.EntityID.ToString() + "$" + shell.EntityType,
                        NotificationId = count,
                    };
                    count++;
                    NotificationImage img = new NotificationImage();
                    img.ResourceName = "icon16.png";
                    notification.Image = img;

                    await LocalNotificationCenter.Current.Show(notification);
                }
                Application.Current.Properties["LastPushedNotifications"] = DateTime.Now;
            }
            catch { }
        }

        #endregion
    }
}