prs/prs.desktop/Panels/Tasks/TasksByStatusControl.xaml.cs

using Comal.Classes;
using InABox.Clients;
using InABox.Core;
using InABox.WPF;
using NPOI.SS.Formula.Functions;
using Syncfusion.UI.Xaml.Kanban;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace PRSDesktop;

public class TasksByStatusColumn
{
    public string Category { get; }

    public string Title { get; }

    public int NumTasks { get => Tasks.Count; }

    public double NumHours { get => Tasks.Sum(x => x.EstimatedTime.TotalHours); }

    public List<TaskModel> Tasks { get; }

    public TasksByStatusColumn(string category, string title)
    {
        Category = category;
        Title = title;
    }
}

public class EmployeeModel
{
    public Guid ID { get; set; }

    public string Name { get; set; }

    public BitmapImage? Image { get; set; }

    public Guid ThumbnailID { get; set; }

    public EmployeeModel(Guid id, string name, Guid thumbnail, BitmapImage? image)
    {
        ID = id;
        Name = name;
        Image = image;
        ThumbnailID = thumbnail;
    }
}


/// <summary>
/// Interaction logic for TasksByStatusControl.xaml
/// </summary>
public partial class TasksByStatusControl : UserControl, ITaskControl
{
    public List<TasksByStatusColumn> Columns = new();

    private List<EmployeeModel> Employees = new();

    public TasksByStatusControl()
    {
        InitializeComponent();
    }

    #region Setup

    public void Setup()
    {
        var employeesTask = LoadEmployees();
        var kanbanTypesTask = Task.Run(() => LoadKanbanTypes());

        SetupToolbar();

        SetupColumns();

        employeesTask.Wait();
        SetupEmployeeList();

        kanbanTypesTask.Wait();
        SetupKanbanTypesLookup(kanbanTypesTask.Result);
    }

    private void SetupToolbar()
    {
        IncludeCompleted.Visibility = Security.IsAllowed<CanHideTaskCompletedColumn>() ? Visibility.Visible : Visibility.Collapsed;
        IncludeCompleted.IsChecked = IncludeCompleted.Visibility == Visibility.Visible ? Host.KanbanSettings.StatusSettings.IncludeCompleted : true;
        IncludeObserved.IsChecked = Host.KanbanSettings.StatusSettings.IncludeObserved;
        ViewType.SelectedIndex = Host.KanbanSettings.StatusSettings.CompactView ? 1 : 0;
    }

    #endregion

    #region Columns

    private void SetupColumns()
    {
        Columns.Clear();

        Columns.Add(new TasksByStatusColumn("Open", "To Do"));

        Columns.Add(new TasksByStatusColumn("In Progress", "In Progress"));

        Columns.Add(new TasksByStatusColumn("Waiting", "Waiting for Others"));

        if (Host.KanbanSettings.StatusSettings.IncludeCompleted)
            Columns.Add(new TasksByStatusColumn("Complete", "Completed"));
    }

    private void Column_ContextMenuOpening(object sender, ContextMenuEventArgs e)
    {
        if (sender is not FrameworkElement element || element.Tag is not TasksByStatusColumn column) return;

        var menu = element.ContextMenu;

        menu.Items.Clear();

        menu.AddItem("New Task", null, CreateTask);
        menu.AddItem($"Select all {column.Title} tasks", null, column, SelectAll);
        menu.AddItem($"Deselect all {column.Title} tasks", null, column, DeselectAll);
    }

    private void SelectColumn(TasksByStatusColumn column, bool selected)
    {
        SelectedTasks.Clear();
        if (selected)
        {
            SelectedTasks.AddRange(column.Tasks);
            foreach (var task in Tasks)
                task.Checked = string.Equals(task.Category, column.Category) ? selected : !selected;
        }

        FilterKanbans();
    }

    private void DeselectAll(TasksByStatusColumn column)
    {
        SelectColumn(column, false);
    }

    private void SelectAll(TasksByStatusColumn column)
    {
        SelectColumn(column, true);
    }

    #endregion

    #region Kanban Types

    private IEnumerable<KanbanType> LoadKanbanTypes()
    {
        return Client.Query(
            new Filter<KanbanType>(x => x.Hidden).IsEqualTo(false),
            new Columns<KanbanType>(x => x.ID, x => x.Description),
            new SortOrder<KanbanType>(x => x.Description))
            .ToObjects<KanbanType>();
    }

    private void SetupKanbanTypesLookup(IEnumerable<KanbanType> kanbanTypes)
    {
        if (ClientFactory.IsSupported<KanbanType>())
        {
            var tasktypes = new Dictionary<Guid, string>
                {
                    { CoreUtils.FullGuid, "All Types" },
                    { Guid.Empty, "Unallocated Types" }
                };
            foreach(var type in kanbanTypes)
            {
                tasktypes.Add(type.ID, type.Description);
            }

            TaskTypes.ItemsSource = tasktypes;
            if (tasktypes.ContainsKey(Host.KanbanSettings.StatusSettings.SelectedType))
                TaskTypes.SelectedValue = Host.KanbanSettings.StatusSettings.SelectedType;
            else
                TaskTypes.SelectedValue = CoreUtils.FullGuid;

            TaskTypesLabel.Visibility = Visibility.Visible;
            TaskTypes.Visibility = Visibility.Visible;
        }
        else
        {
            TaskTypesLabel.Visibility = Visibility.Collapsed;
            TaskTypes.Visibility = Visibility.Collapsed;
        }
    }

    #endregion

    #region Employees

    private EmployeeModel SelectedEmployee;

    private async Task LoadEmployees()
    {
        Employees.Clear();

        var employeeFilter = Security.IsAllowed<CanViewOthersTasks>()
            ? new Filter<Employee>(x => x.CanAllocateTasks).IsEqualTo(true)
                .And(new Filter<Employee>(x => x.FinishDate).IsEqualTo(DateTime.MinValue)
                    .Or(x => x.FinishDate).IsGreaterThan(DateTime.Today))
            : new Filter<Employee>(x => x.ID).IsEqualTo(App.EmployeeID);

        var employees = await Task.Run(() => Client.Query<Employee>(
            employeeFilter,
            new Columns<Employee>(x => x.ID)
                .Add(x => x.Thumbnail.ID)
                .Add(x => x.Name)));

        var anonymous = PRSDesktop.Resources.anonymous.AsBitmapImage();
        if (Security.IsAllowed<CanViewOthersTasks>())
        {
            Employees.Add(new EmployeeModel(CoreUtils.FullGuid, "All Staff", Guid.Empty, PRSDesktop.Resources.everyone.AsBitmapImage()));
            Employees.Add(new EmployeeModel(Guid.Empty, "Unallocated", Guid.Empty, null));
        }

        EmployeeModel? selected = null;
        foreach (var employee in employees.ToObjects<Employee>())
        {
            var name = employee.ID == App.EmployeeID ? "My Tasks" : employee.Name;

            var model = new EmployeeModel(employee.ID, name, employee.Thumbnail.ID, anonymous);

            if (employee.ID == App.EmployeeID)
            {
                Employees.Insert(0, model);
                selected = model;
            }
            else
            {
                Employees.Add(model);
            }
        }
    }

    private void SetupEmployeeList()
    {
        if (Security.IsAllowed<CanViewOthersTasks>())
        {
            EmployeeListColumn.Width = new GridLength(1.0F, GridUnitType.Auto);
            var thumbnails = Employees
                .Select(e => e.ThumbnailID)
                .Where(x => x != Guid.Empty).ToArray();
            EmployeeList.ItemsSource = Employees;
            SelectedEmployee = Employees.First();
            EmployeeList.SelectedItem = SelectedEmployee;
            if (thumbnails.Any())
                new Client<Document>().Query(
                    new Filter<Document>(x => x.ID).InList(thumbnails),
                    new Columns<Document>(x => x.ID, x => x.Data),
                    null,
                    (data, error) =>
                    {
                        if (data != null)
                            ProcessThumbnails(data);
                    }
                );
        }
        else
        {
            EmployeeListColumn.Width = new GridLength(0.0F, GridUnitType.Pixel);
            EmployeeList.ItemsSource = Employees;
            SelectedEmployee = Employees.First();
            EmployeeList.SelectedItem = SelectedEmployee;
        }
    }

    private bool _updatingEmployees = false;
    private void ProcessThumbnails(CoreTable data)
    {
        Dispatcher.Invoke(() =>
        {
            foreach (var row in data.Rows)
            {
                var id = row.Get<Document, Guid>(x => x.ID);
                var model = Employees.FirstOrDefault(x => x.ThumbnailID.Equals(id));
                if (model != null)
                {
                    model.Image = new BitmapImage();
                    model.Image.LoadImage(row.Get<Document, byte[]>(x => x.Data));
                }
            }

            _updatingEmployees = true;
            EmployeeList.ItemsSource = null;
            EmployeeList.ItemsSource = Employees;
            SelectedEmployee = Employees.First();
            EmployeeList.SelectedItem = SelectedEmployee;
            _updatingEmployees = false;
        });
    }

    #endregion

    #region Kanbans

    private IEnumerable<TaskModel> Tasks => Columns.SelectMany(x => x.Tasks);

    private readonly List<TaskModel> SelectedTasks = new();

    private void CreateTask()
    {
        var result = Host.CreateKanban(
            kanban =>
            {
                kanban.EmployeeLink.ID = SelectedEmployee.ID != CoreUtils.FullGuid ? SelectedEmployee.ID : App.EmployeeID;
                kanban.ManagerLink.ID = App.EmployeeID;
                kanban.ManagerLink.UserLink.ID = ClientFactory.UserGuid;
            });
        if (result != null)
            Refresh(true);
    }

    private void DoEdit(TaskModel task)
    {
        var result = Host.EditReferences(new[] { task });
        if (result)
        {
            Refresh(true);
        }
    }


    private void EditTask_Executed(object sender, ExecutedRoutedEventArgs e)
    {
        if (e.Parameter is not TaskModel model) return;

        DoEdit(model);
    }

    private void OpenTaskMenu_Executed(object sender, ExecutedRoutedEventArgs e)
    {
        if (e.Parameter is not TaskModel model) return;

        Host.PopulateMenu(this, sender as ContextMenu);
    }

    private void SelectTask_Executed(object sender, ExecutedRoutedEventArgs e)
    {
        if (e.Parameter is not TaskModel model) return;

        if (!SelectedTasks.Remove(model))
        {
            SelectedTasks.Add(model);
        }
    }

    private void CommandBinding_CanExecute(object sender, CanExecuteRoutedEventArgs e)
    {
        e.CanExecute = e.Parameter is TaskModel;
    }

    #endregion

    public void Refresh(bool resetselection)
    {
    }

    #region ITaskControl

    public ITaskHost Host { get; set; }

    public KanbanViewType KanbanViewType => KanbanViewType.Status;

    public bool IsReady { get; set; }

    public string SectionName => "Tasks By Status";

    public DataModel DataModel(Selection selection)
    {
        var ids = SelectedModels().Select(x => Guid.Parse(x.ID)).ToArray();
        return new AutoDataModel<Kanban>(new Filter<Kanban>(x => x.ID).InList(ids));
    }

    public IEnumerable<TaskModel> SelectedModels(TaskModel? sender = null)
    {
        return Enumerable.Empty<TaskModel>();
    }

    #endregion

    private void Employees_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {

    }

    private void TaskTypesLabel_OnClick(object sender, RoutedEventArgs e)
    {

    }

    private void TaskTypes_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {

    }

    private void JobFilterBtn_OnClick(object sender, RoutedEventArgs e)
    {

    }

    private void Export_Click(object sender, RoutedEventArgs e)
    {

    }

    private void IncludeCompleted_Checked(object sender, RoutedEventArgs e)
    {

    }

    private void IncludeObserved_Checked(object sender, RoutedEventArgs e)
    {

    }

    private void IncludeLocked_Checked(object sender, RoutedEventArgs e)
    {

    }

    private void ViewType_SelectionChanged(object sender, SelectionChangedEventArgs e)
    {

    }

    private void Search_KeyUp(object sender, KeyEventArgs e)
    {

    }
}