using InABox.Core;
using InABox.DynamicGrid;
using InABox.WPF;
using PRS.Shared.Events;
using PRS.Shared.Grids.EventEditor;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Windows.Media;

namespace PRS.Shared;

public class EventActionContainer<TEvent, TDataModel> : BaseObject
    where TEvent : IEvent<TDataModel>
{
    public IEventAction<TEvent> Action { get; set; }

    public string ActionType => Action.GetType().GetCaption();

    public string Description => Action.Description;
}

public class EventActionGrid<TEvent, TDataModel> : DynamicItemsListGrid<EventActionContainer<TEvent, TDataModel>>
    where TEvent : IEvent<TDataModel>
    where TDataModel : IEventDataModel
{
    public IEnumerable<IEventAction<TEvent>> EventActions => Items.Select(x => x.Action);

    private readonly IEventDataModelDefinition DataModelDefinition;

    public EventActionGrid(IEnumerable<IEventAction<TEvent>> items, IEventDataModelDefinition dataModelDefinition)
    {
        Items.AddRange(items.Select(x => new EventActionContainer<TEvent, TDataModel> { Action = x }));
        DataModelDefinition = dataModelDefinition;
    }

    protected override void DoReconfigure(DynamicGridOptions options)
    {
        base.DoReconfigure(options);
        options.AddRows = true;
        options.EditRows = true;
        options.DeleteRows = true;
        options.MultiSelect = true;
    }

    public override DynamicGridColumns GenerateColumns()
    {
        var cols = new DynamicGridColumns<EventActionContainer<TEvent, TDataModel>>();
        cols.Add(x => x.Description);
        return cols;
    }

    protected override void DoAdd(bool openEditorOnDirectEdit = false)
    {
        var menu = new ContextMenu();
        foreach(var type in EventUtils.GetEventActionTypes(typeof(TEvent)))
        {
            menu.AddItem(type.GetCaption(), null, type, MenuAdd_Click);
        }
        foreach(var type in EventUtils.GetStandardEventActionTypes())
        {
            menu.AddItem(type.GetCaption(), null, type, MenuAdd_Click);
        }

        menu.IsOpen = true;
    }

    protected override void DoEdit()
    {
        if (SelectedRows.Length != 1) return;

        var row = SelectedRows.First();
        var item = LoadItem(row);
        if (EventActionEditors.EditAction<TEvent, TDataModel>(item.Action, DataModelDefinition))
        {
            UpdateRow(row, item);
            DoChanged();
        }
    }

    private void MenuAdd_Click(Type type)
    {
        if (type.IsGenericType)
        {
            if(!type.BuildGenericType()
                .AddInterfaceFrom(typeof(IEntityEvent<>), typeof(TEvent))
                .AddInterface(typeof(IStandardEventAction<>), typeof(TEvent))
                .TryBuild(out var newType))
            {
                return;
            }
            type = newType;
        }
        var action = (Activator.CreateInstance(type) as IEventAction<TEvent>)!;
        if(!EventActionEditors.EditAction<TEvent, TDataModel>(action, DataModelDefinition))
        {
            return;
        }

        Items.Add(new() { Action = action });

        Refresh(false, true);
        DoChanged();
    }
}