using HandyControl.Tools.Extension;
using System.Collections.ObjectModel;
using YY.Admin.Core;
using YY.Admin.Core.Entity;
using YY.Admin.Core.Services;

namespace YY.Admin.ViewModels.RawMaterialEntry;

public class WeightRecordPickerDialogViewModel : BaseViewModel, IDialogResultable<bool>
{
    private readonly IWeightRecordService _weightRecordService;

    private string? _searchBillNo;
    public string? SearchBillNo
    {
        get => _searchBillNo;
        set => SetProperty(ref _searchBillNo, value);
    }

    private string? _searchPlateNumber;
    public string? SearchPlateNumber
    {
        get => _searchPlateNumber;
        set => SetProperty(ref _searchPlateNumber, value);
    }

    public ObservableCollection<MesXslWeightRecord> Records { get; } = new();

    private MesXslWeightRecord? _selectedRecord;
    public MesXslWeightRecord? SelectedRecord
    {
        get => _selectedRecord;
        set
        {
            SetProperty(ref _selectedRecord, value);
            ConfirmCommand.RaiseCanExecuteChanged();
            RaisePropertyChanged(nameof(SelectedRecordDisplay));
            RaisePropertyChanged(nameof(HasSelectedRecord));
        }
    }

    public string SelectedRecordDisplay => _selectedRecord != null
        ? $"[{_selectedRecord.BillNo}]  供应商：{_selectedRecord.SenderUnit ?? "-"}"
        : "选中榜单后点击「确认选择」";

    public bool HasSelectedRecord => _selectedRecord != null;

    private bool _result;
    public bool Result
    {
        get => _result;
        set => SetProperty(ref _result, value);
    }

    public Action? CloseAction { get; set; }

    public DelegateCommand SearchCommand { get; }
    public DelegateCommand ConfirmCommand { get; }
    public DelegateCommand CancelCommand { get; }

    public WeightRecordPickerDialogViewModel(
        IWeightRecordService weightRecordService,
        IContainerExtension container,
        IRegionManager regionManager) : base(container, regionManager)
    {
        _weightRecordService = weightRecordService;
        SearchCommand = new DelegateCommand(async () => await LoadAsync());
        ConfirmCommand = new DelegateCommand(Confirm, () => SelectedRecord != null);
        CancelCommand = new DelegateCommand(() => CloseAction?.Invoke());
        _ = LoadAsync();
    }

    public void Initialize(string? billNo)
    {
        if (!string.IsNullOrWhiteSpace(billNo))
        {
            SearchBillNo = billNo.Trim();
            _ = LoadAsync();
        }
    }

    private async Task LoadAsync()
    {
        try
        {
            IsLoading = true;
            var result = await _weightRecordService.PageAsync(
                1,
                200,
                filterBillNo: SearchBillNo?.Trim(),
                filterPlateNumber: SearchPlateNumber?.Trim(),
                filterInoutDirection: "1");

            Records.Clear();
            foreach (var record in result.Records)
            {
                Records.Add(record);
            }

            if (!string.IsNullOrWhiteSpace(SearchBillNo))
            {
                SelectedRecord = Records.FirstOrDefault(x =>
                    string.Equals(x.BillNo, SearchBillNo, StringComparison.OrdinalIgnoreCase));
            }
        }
        catch
        {
            Records.Clear();
        }
        finally
        {
            IsLoading = false;
        }
    }

    private void Confirm()
    {
        if (SelectedRecord == null)
        {
            return;
        }

        Result = true;
        CloseAction?.Invoke();
    }
}