using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq.Expressions;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Sln.Wcs.Model.Domain;
using Sln.Wcs.Repository.service;
using Sln.Wcs.UI.ViewModels.Base;
using Sln.Wcs.UI.Views.Base;

namespace Sln.Wcs.UI.ViewModels.Path;

public partial class PathInfoViewModel : CrudPageViewModel<BasePathInfo>
{
    private readonly IBasePathDetailsService _detailService;
    private BasePathInfo? _currentPath;

    [ObservableProperty]
    private bool _isPanelOpen;

    [ObservableProperty]
    private ObservableCollection<BasePathDetails> _detailItems = new();

    [ObservableProperty]
    private string _slidePanelTitle = string.Empty;

    public PathInfoViewModel(IBasePathInfoService service, IBasePathDetailsService detailService) : base(service)
    {
        _detailService = detailService;
        PageTitle = "路径信息管理";
    }

    public override List<FieldConfig> FieldConfigs => new()
    {
        new() { PropertyName = "pathCode", DisplayName = "路径编号" },
        new() { PropertyName = "pathName", DisplayName = "路径名称" },
        new() { PropertyName = "pathType", DisplayName = "路径类型", FieldType = FieldType.Number },
        new() { PropertyName = "pathCategory", DisplayName = "路径类别", FieldType = FieldType.Number },
        new() { PropertyName = "startPoint", DisplayName = "起点" },
        new() { PropertyName = "endPoint", DisplayName = "终点" },
        new() { PropertyName = "isFlag", DisplayName = "启用", FieldType = FieldType.CheckBox },
        new() { PropertyName = "remark", DisplayName = "备注" },
    };

    protected override Expression<Func<BasePathInfo, bool>>? BuildSearchExpression(string search)
        => x => (x.pathCode != null && x.pathCode.Contains(search))
             || (x.pathName != null && x.pathName.Contains(search));

    public override Avalonia.Controls.Control CreateView() => new Sln.Wcs.UI.Views.Path.PathInfoListView();

    public void LoadDetailsData(BasePathInfo path)
    {
        _currentPath = path;
        LoadDetails();
        SlidePanelTitle = $"路径明细 - {path.pathCode}";
    }

    [RelayCommand]
    public void ClosePanel()
    {
        IsPanelOpen = false;
    }

    [RelayCommand]
    private async System.Threading.Tasks.Task AddDetail()
    {
        if (_currentPath is null) return;
        var entity = new BasePathDetails { pathCode = _currentPath.pathCode };
        var editor = new EntityEditWindow();
        var result = await editor.ShowDialog(entity, DetailFieldConfigs, false, GetMainWindow());
        if (result)
        {
            _detailService.Insert(entity);
            LoadDetails();
        }
    }

    public async System.Threading.Tasks.Task EditDetailAsync(BasePathDetails detail)
    {
        var editor = new EntityEditWindow();
        var result = await editor.ShowDialog(detail, DetailFieldConfigs, true, GetMainWindow());
        if (result)
        {
            _detailService.Update(detail);
            LoadDetails();
        }
    }

    public void DeleteDetail(BasePathDetails detail)
    {
        _detailService.DeleteById(detail.objId);
        LoadDetails();
    }

    private void LoadDetails()
    {
        if (_currentPath is null) return;
        var list = _detailService.Query(x => x.pathCode == _currentPath.pathCode);
        DetailItems = new ObservableCollection<BasePathDetails>(list);
    }

    public List<FieldConfig> DetailFieldConfigs => new()
    {
        new() { PropertyName = "pathCode", DisplayName = "路径编号", IsRequired = true, IsReadOnly = true },
        new() { PropertyName = "pathName", DisplayName = "路径名称" },
        new() { PropertyName = "startPoint", DisplayName = "起点", IsRequired = true },
        new() { PropertyName = "endPoint", DisplayName = "终点", IsRequired = true },
        new() { PropertyName = "deviceType", DisplayName = "设备类型", FieldType = FieldType.Number },
        new() { PropertyName = "isFlag", DisplayName = "启用", FieldType = FieldType.CheckBox },
        new() { PropertyName = "remark", DisplayName = "备注" },
    };

    private Avalonia.Controls.Window GetMainWindow()
    {
        return (Avalonia.Controls.Window)Avalonia.Application.Current!
            .ApplicationLifetime!.GetType()
            .GetProperty("MainWindow")!
            .GetValue(Avalonia.Application.Current.ApplicationLifetime)!;
    }
}