prs/prs.mobile/comal.timesheets/Assignments/AssignmentEdit.xaml.cs

using System;
using Comal.Classes;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;
using XF.Material.Forms.UI;
using XF.Material.Forms.UI.Dialogs;

namespace comal.timesheets
{
    [XamlCompilation(XamlCompilationOptions.Compile)]
    public partial class AssignmentEdit : ContentPage
    {
        public AssignmentEdit(AssignmentListDataModelItem assignment)
        {
            InitializeComponent();
            DataModel.JobID = assignment.JobID;
            DataModel.EmployeeID = assignment.EmployeeId;
            DataModel.Load(assignment.Id, () => LoadPages());
        }        
        
        public AssignmentEdit(Assignment assignment)
        {
            InitializeComponent();
            DataModel.JobID = assignment.JobLink.ID;
            DataModel.EmployeeID = assignment.EmployeeLink.ID;
            DataModel.Load(assignment, () => LoadPages());
        }

        private void LoadPages()
        {
            Dispatcher.BeginInvokeOnMainThread(() =>
            {
                Title.Text = DataModel.Item.ID == Guid.Empty 
                    ? "New Assignment"
                    : $"Assignment {DataModel.Item.Number}";

                Details.Load();
                
                Map.Load();
                
                Forms.Load();

                NavigationPage.SetHasBackButton(this, DataModel.Item.ID != Guid.Empty);
                Cancel.IsVisible = DataModel.Item.ID == Guid.Empty;
                Save.IsVisible = DataModel.Item.ID == Guid.Empty;

            });
        }
        
        private void Button_OnClicked(object sender, EventArgs e)
        {
            MaterialButton button = sender as MaterialButton;
            TabView.SelectedIndex = int.Parse(button.CommandParameter.ToString());
        }
        
        private async void Cancel_OnClicked(object sender, EventArgs e)
        {
            var confirm = await MaterialDialog.Instance.ConfirmAsync("Are you sure you wish to cancel this action?",
                "Confirm Cancel", "OK", "Keep Editing") == true;
            if (confirm)
            Navigation.PopAsync();
        }

        private void Save_OnClicked(object sender, EventArgs e)
        {
            DataModel.Save("Saved by PRS Mobile");
            Navigation.PopAsync();
        }

        private void Details_OnOnDetailsChanged(object sender, AssignmentDetailsChangedArgs args)
        {
            if (String.Equals(args.Property, "Job"))
                Map.Load();
            
            NavigationPage.SetHasBackButton(this, false);
            Cancel.IsVisible = true;
            Save.IsVisible = true;
        }
    }
}