using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Windows.Controls;
using System.Windows.Threading;
using Comal.Classes;
using InABox.Core;
using InABox.DynamicGrid;
using InABox.Wpf;

namespace PRSDesktop;

public partial class JobScopePanel : UserControl, IPanel<JobScope>, IMasterDetailControl<Job>
{
    
    private enum PageIndex
    {
        RequisitionItems = 00,
        ManufacturingPackets,
        DeliveryItems,
        Assignments,
        Documents,
        Tasks,
        Forms,
    }
            
    private int _currentPage = -1;
    
    private JobScopeRequisitionItemGrid? _requisitionItemsGrid;
    private JobScopeAssignmentGrid? _assignmentGrid;
    private JobScopeDocumentGrid? _documentGrid;
    private JobScopeKanbanGrid? _kanbanGrid;
    private JobScopeFormGrid? _formGrid;

    public JobScopePanel()
    {
        InitializeComponent();
        
    }
    
    public Job? Master
    {
        get => _scopes.Master;
        set => _scopes.Master = value;
    }

    public bool IsReady { get; set; }

    public event DataModelUpdateEvent? OnUpdateDataModel;
    
    public void CreateToolbarButtons(IPanelHost host)
    {
    }

    public void Setup()
    {
        _scopes.Refresh(true, false);
    }

    public void Shutdown(CancelEventArgs? cancel)
    {

    }

    public void Refresh()
    {
        _scopes.Refresh(false, true);
        RefreshPage();
    }
    
    private void RefreshPage()
    {
        var scope = _scopes.SelectedRows.FirstOrDefault()?.ToObject<JobScope>();
        var page = (PageIndex)_pages.SelectedIndex;
        switch (page)
        {
            case PageIndex.RequisitionItems :
                RefreshGrid(_requisitionItems, ref _requisitionItemsGrid, scope);
                break;
            case PageIndex.ManufacturingPackets : 
                break;
            case PageIndex.DeliveryItems : 
                break;
            case PageIndex.Assignments : 
                RefreshGrid(_assignments, ref _assignmentGrid, scope);
                break;
            case PageIndex.Documents:
                RefreshGrid(_documents, ref _documentGrid, scope);
                break;
            case PageIndex.Tasks:
                RefreshGrid(_kanbans, ref _kanbanGrid, scope);
                break;
            case PageIndex.Forms:
                RefreshGrid(_forms, ref _formGrid, scope, () => new JobScopeFormGrid(Master));
                break;
        }
    }

    public string SectionName => "Job Scopes";

    public DataModel DataModel(Selection selection)
    {
        var ids = _scopes.ExtractValues(x => x.ID, selection).ToArray();
        return new AutoDataModel<JobScope>(new Filter<JobScope>(c => c.ID).InList(ids));
    }

    public Dictionary<string, object[]> Selected()
    {
        return new Dictionary<string, object[]> { { typeof(JobScope).EntityName(), _scopes.Data.Rows.ToArray<object>() } };
    }

    public void Heartbeat(TimeSpan time)
    {
    }

    private void _scopes_OnSelectItem(object sender, DynamicGridSelectionEventArgs e)
    {
        RefreshPage();
    }

    private void RefreshGrid<T>(TabItem container, ref T? grid, JobScope? scope) where T : IDynamicGrid, IJobScopeGrid, new() =>
        RefreshGrid(container, ref grid, scope, () => new T());

    private void RefreshGrid<T>(TabItem container, ref T? grid, JobScope? scope, Func<T> newGrid)
        where T : IDynamicGrid, IJobScopeGrid
    {
        var bInitialised = grid != null;
        if (!bInitialised)
        {
            grid = newGrid();
            container.Content = grid;
        }
        grid.Scope = scope;
        grid.Refresh(!bInitialised, true);
    }

    private void _pages_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        RefreshPage();
    }
}