using System.Collections.ObjectModel;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using CommunityToolkit.Mvvm.Messaging;
using Seyounth.Core.Extensions;
using Seyounth.Hyosung.Data.Entities;
using Seyounth.Hyosung.Data.Models;
using Seyounth.Hyosung.Data.Services;

namespace Seyounth.Hyosung.ViewModels;

public partial class VarietyViewModel : ObservableObject
{
    [ObservableProperty] private ObservableCollection<Variety> _varieties;

    [ObservableProperty] private ObservableCollection<Pallet> _pallets;


    public IEnumerable<NeedTypeEnumItem> NeedTypeItems { get; }

    private readonly IVarietyService _varietyService;

    private readonly HomeViewModel _homeViewModel;

    public VarietyViewModel(PalletManagerViewModel palletManagerViewModel, IVarietyService varietyService,
        HomeViewModel homeViewModel)
    {
        Pallets = new ObservableCollection<Pallet>(palletManagerViewModel.Pallets);

        _homeViewModel = homeViewModel;

        _varietyService = varietyService;

        _varieties = new ObservableCollection<Variety>(varietyService.GetAll());
        var needTypes = EnumHelper.GetValues<NeedType>();
        NeedTypeItems = needTypes.Select(nt => new NeedTypeEnumItem
        {
            Value = nt,
            Description = nt.GetDescription()
        });
    }

    public class SaveVarietyCompletedMessage
    {
    }

    [RelayCommand]
    private void OnDeleteVariety(object obj)
    {
        if (obj is Variety variety)
        {
            Varieties.Remove(variety);
            _varietyService.DeleteVarietyAsync(variety);
        }
        else
        {
            Console.Write("Object is not a Pallet");
        }
    }

    [RelayCommand]
    private void OnSaveVariety(object obj)
    {
        if (obj is Variety variety)
        {
            if (variety.Id == 0)
            {
                _varietyService.AddVarietyAsync(variety);
            }
            else
                _varietyService.UpdateVarietyAsync(variety);
        }

        //同步更新主页的品种列表
        _homeViewModel.Varieties = Varieties;
        WeakReferenceMessenger.Default.Send(new SaveVarietyCompletedMessage());
    }
}