using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Xamarin.Forms;
using Xamarin.Forms.Xaml;

namespace comal.timesheets
{
    [XamlCompilation(XamlCompilationOptions.Compile)]
    public partial class EquipmentTasksList : ContentPage
    {
        List<EquipmentTaskListViewItem> items = new List<EquipmentTaskListViewItem>();
        Guid EquipmentID = Guid.Empty;
        public EquipmentTasksList(Guid equipmentid)
        {
            InitializeComponent();
            NavigationPage.SetHasBackButton(this, false);
            EquipmentID = equipmentid;
        }

        private void BackBtn_Clicked(object sender, EventArgs e)
        {
            Navigation.PopAsync();
        }

        protected override void OnAppearing()
        {
            LoadItems(EquipmentID);
            base.OnAppearing();
        }

        private void LoadItems(Guid id)
        {
            CoreTable table = new Client<Kanban>().Query(new Filter<Kanban>(x => x.Equipment.ID).IsEqualTo(id),
                new Columns<Kanban>(
                    x => x.ID, //0
                    x => x.Number, //1
                    x => x.Title, //2
                    x => x.Description, //3
                    x => x.Completed, //4
                    x => x.EmployeeLink.Name, //5
                    x => x.Attachments //6
                    ),
                new SortOrder<Kanban>(x => x.Completed, SortDirection.Descending));
            if (table.Rows.Any())
            {
                items.Clear();
                foreach (CoreRow row in table.Rows)
                {
                    List<object> list = row.Values;
                    if (list[0] == null) list[0] = Guid.Empty;
                    if (list[1] == null) list[1] = 0;
                    if (list[2] == null) list[2] = "";
                    if (list[3] == null) list[3] = "";
                    if (list[4] == null) list[4] = DateTime.MinValue;
                    if (list[5] == null) list[5] = "";
                    if (list[6] == null) list[6] = 0;

                    EquipmentTaskListViewItem item = new EquipmentTaskListViewItem
                    {
                        ID = Guid.Parse(list[0].ToString()),
                        Number = "Task " + list[1].ToString(),
                        Title = list[2].ToString(),
                        Description = CoreUtils.StripHTML(list[3].ToString()),
                        Completed = DateTime.Parse(list[4].ToString()) == DateTime.MinValue ? "Open" : "Completed: " + DateTime.Parse(list[4].ToString()).ToString("dd MMM yy"),
                        ImageVisible = int.Parse(list[6].ToString()) > 0,
                        DescriptionVisible = !string.IsNullOrWhiteSpace(list[3].ToString()) ? true : false
                    };                  
                    if (!string.IsNullOrWhiteSpace(item.Description))
                    {
                        item.ExtraRowHeight = new GridLength(1, GridUnitType.Auto);
                        item.DescriptionVisible = true;
                    }                      
                    item.ExtraColumnWidth = item.ImageVisible ? 35 : 0;
                    if (item.Completed == "Open")
                        items.Insert(0, item);
                    else
                        items.Add(item);
                }
                listView.ItemsSource = null;
                listView.ItemsSource = items;
            }
        }

        private async void Kanban_Tapped(object sender, EventArgs e)
        {
            EquipmentTaskListViewItem item = listView.SelectedItem as EquipmentTaskListViewItem;
            if (!item.ImageVisible)
                return;

            CoreTable table = new Client<KanbanDocument>().Query(new Filter<KanbanDocument>(x => x.EntityLink.ID).IsEqualTo(item.ID),
                new Columns<KanbanDocument>(x => x.DocumentLink.FileName, x => x.DocumentLink.ID));
            if (table.Rows.Any())
            {
                Dictionary<string, Guid> filenameIDS = new Dictionary<string, Guid>();
                foreach (CoreRow row in table.Rows)
                {
                    List<object> list = row.Values;
                    if (list[0] != null && list[1] != null)
                    {
                        filenameIDS.Add(list[0].ToString(), Guid.Parse(list[1].ToString()));
                    }
                }
                if (filenameIDS.Count > 0)
                {
                    PDFList pdflist = new PDFList(filenameIDS, true);
                    Navigation.PushAsync(pdflist);
                }
            }
        }
    }

    public class EquipmentTaskListViewItem
    {
        public Guid ID { get; set; }
        public string Number { get; set; }
        public string Title { get; set; }
        public string Description { get; set; }
        public string Employee { get; set; }
        public string Completed { get; set; }
        public string ImageSource { get; set; }
        public bool ImageVisible { get; set; }
        public bool DescriptionVisible { get; set; }
        public double ExtraColumnWidth { get; set; }
        public GridLength ExtraRowHeight { get; set; }

        public EquipmentTaskListViewItem()
        {
            ID = Guid.Empty;
            Number = "";
            Title = "";
            Description = "";
            Employee = "";
            Completed = "";
            ImageSource = "paperclip.png";
            ImageVisible = false;
            DescriptionVisible = false;
            ExtraColumnWidth = 0;
            ExtraRowHeight = new GridLength(0, GridUnitType.Absolute);
        }
    }
}