using System.Linq;
using Content.Client.Station;
using Robust.Client.AutoGenerated;
using Robust.Client.UserInterface;
using Robust.Client.UserInterface.Controls;
using Robust.Client.UserInterface.XAML;

namespace Content.Client.Administration.UI.Tabs.ObjectsTab;

[GenerateTypedNameReferences]
public sealed partial class ObjectsTab : Control
{
    [Dependency] private readonly EntityManager _entityManager = default!;

    private readonly List<ObjectsTabEntry> _objects = new();
    private List<ObjectsTabSelection> _selections = new();

    public event Action<BaseButton.ButtonEventArgs>? OnEntryPressed;

    public ObjectsTab()
    {
        RobustXamlLoader.Load(this);
        IoCManager.InjectDependencies(this);

        ObjectTypeOptions.OnItemSelected += ev =>
        {
            ObjectTypeOptions.SelectId(ev.Id);
            RefreshObjectList(_selections[ev.Id]);
        };

        foreach (var type in Enum.GetValues(typeof(ObjectsTabSelection)))
        {
            _selections.Add((ObjectsTabSelection)type!);
            ObjectTypeOptions.AddItem(Enum.GetName((ObjectsTabSelection)type!)!);
        }

        RefreshObjectList(_selections[ObjectTypeOptions.SelectedId]);
    }

    private void RefreshObjectList(ObjectsTabSelection selection)
    {
        var entities = selection switch
        {
            ObjectsTabSelection.Stations => _entityManager.EntitySysManager.GetEntitySystem<StationSystem>().Stations.ToList(),
            ObjectsTabSelection.Grids => _entityManager.EntityQuery<IMapGridComponent>(true).Select(x => x.Owner).ToList(),
            ObjectsTabSelection.Maps => _entityManager.EntityQuery<IMapComponent>(true).Select(x => x.Owner).ToList(),
            _ => throw new ArgumentOutOfRangeException(nameof(selection), selection, null)
        };

        foreach (var control in _objects)
        {
            ObjectList.RemoveChild(control);
        }

        _objects.Clear();

        foreach (var entity in entities)
        {
            var ctrl = new ObjectsTabEntry(_entityManager.GetComponent<MetaDataComponent>(entity).EntityName, entity);
            _objects.Add(ctrl);
            ObjectList.AddChild(ctrl);
            ctrl.OnPressed += args => OnEntryPressed?.Invoke(args);
        }
    }

    private enum ObjectsTabSelection
    {
        Grids,
        Maps,
        Stations,
    }
}