using System;
using System.Linq.Expressions;
using System.Text;
using System.Threading.Tasks;
using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;

namespace comal.timesheets
{

    [XamlCompilation(XamlCompilationOptions.Compile)]
    public partial class AssignmentEdit : ContentPage
    {
        public AssignmentEdit(Guid assignmentid)
        {
            InitializeComponent();
            DataModel.Load(assignmentid);
        }

        public AssignmentEdit(Assignment assignment)
        {
            InitializeComponent();
            DataModel.Load(assignment);
        }
        
        private void Save_Tapped(object sender, EventArgs e)
        {
           DataModel.Save("Saved by PRS Mobile");
        }

        private async void Activity_Clicked(object sender, EventArgs e)
        {
            try
            {
                GenericSelectionPage page = new GenericSelectionPage(
                    "Select Activity",
                    new SelectionViewModel<EmployeeActivity>(
                        new Filter<EmployeeActivity>(x => x.Employee.ID).IsEqualTo(App.Data.Employee.ID),
                        new Expression<Func<EmployeeActivity, object>>[]
                            { x => x.Activity.Code, x => x.Activity.Description },
                        new Expression<Func<EmployeeActivity, object>>[] { x => x.Activity.ID },
                        new SortOrder<EmployeeActivity>(x => x.Activity.Code)
                    )
                );
                page.OnItemSelected += (row) =>
                {
                    Device.BeginInvokeOnMainThread(() =>
                    {
                        DataModel.Item.ActivityID = row.Get<EmployeeActivity, Guid>(c => c.Activity.ID);
                        DataModel.Item.ActivityCode = row.Get<EmployeeActivity, String>(c => c.Activity.Code);
                        DataModel.Item.ActivityDescription = row.Get<EmployeeActivity, String>(c => c.Activity.Description);
                    });
                };
                Navigation.PushAsync(page);

            }
            catch
            {
                
            }            
        }

        private void Job_Clicked(object sender, EventArgs e)
        {
            try
            {
                GenericSelectionPage page = new GenericSelectionPage(
                    "Select Job",
                    new SelectionViewModel<Job>(
                        new Filter<Job>(x => x.JobStatus.Active).IsEqualTo(true),
                        new Expression<Func<Job, object>>[]
                            { x => x.JobNumber, x => x.Name },
                        new Expression<Func<Job, object>>[] { x => x.ID },
                        new SortOrder<Job>(x => x.JobNumber,SortDirection.Descending)
                    )
                );
                page.OnItemSelected += (row) =>
                {
                    Device.BeginInvokeOnMainThread(() =>
                    {
                        DataModel.Item.JobID = row.Get<Job, Guid>(c => c.ID);
                        DataModel.Item.JobNumber = row.Get<Job, String>(c => c.JobNumber);
                        DataModel.Item.JobName = row.Get<Job, String>(c => c.Name);
                    });
                };
                Navigation.PushAsync(page);

            }
            catch
            {
                
            }            
        }
    }
}