using Microsoft.Extensions.DependencyInjection;
using Sln.Wcs.Model.Domain;
using Sln.Wcs.Repository.service;
using Sln.Wcs.UI.Controls;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;

namespace Sln.Wcs.UI.Page.BasicInfo.LocationInfo
{
    public partial class LocationInfoPage : UserControl
    {
        private readonly IBaseLocationInfoService _locationService;
        private string _searchLocationCode = "";
        private string _searchLocationName = "";
        private int? _searchLocationStatus = null;

        public LocationInfoPage()
        {
            InitializeComponent();
            _locationService = App.ServiceProvider.GetService<IBaseLocationInfoService>();
            LoadData();
        }

        private void LoadData()
        {
            try
            {
                var list = _locationService.Query()
                    .Where(x => string.IsNullOrEmpty(_searchLocationCode) || (x.locationCode != null && x.locationCode.Contains(_searchLocationCode)))
                    .Where(x => string.IsNullOrEmpty(_searchLocationName) || (x.locationName != null && x.locationName.Contains(_searchLocationName)))
                    .Where(x => !_searchLocationStatus.HasValue || x.locationStatus == _searchLocationStatus)
                    .OrderByDescending(x => x.updatedTime)
                    .ToList();

                for (int i = 0; i < list.Count; i++)
                {
                    list[i].RowIndex = i + 1;
                }

                dataGrid.ItemsSource = list;
            }
            catch (Exception ex)
            {
                CustomMessageBox.Show($"加载数据失败: {ex.Message}", "错误");
            }
        }

        private void BtnSearch_Click(object sender, RoutedEventArgs e)
        {
            _searchLocationCode = txtLocationCode.Text.Trim();
            _searchLocationName = txtLocationName.Text.Trim();
            _searchLocationStatus = GetSelectedStatus();

            LoadData();
        }

        private int? GetSelectedStatus()
        {
            if (cmbLocationStatus.SelectedItem is ComboBoxItem item && item.Tag != null)
            {
                if (int.TryParse(item.Tag.ToString(), out int status))
                {
                    return status;
                }
            }
            return null;
        }

        private void BtnReset_Click(object sender, RoutedEventArgs e)
        {
            txtLocationCode.Text = "";
            txtLocationName.Text = "";
            cmbLocationStatus.SelectedIndex = 0;

            _searchLocationCode = "";
            _searchLocationName = "";
            _searchLocationStatus = null;

            LoadData();
        }

        private void BtnAdd_Click(object sender, RoutedEventArgs e)
        {
            var window = new LocationAddWindow
            {
                Owner = Window.GetWindow(this)
            };

            if (window.ShowDialog() == true)
            {
                LoadData();
            }
        }

        private void BtnEdit_Click(object sender, RoutedEventArgs e)
        {
            if (dataGrid.SelectedItem is BaseLocationInfo location)
            {
                var window = new LocationEditWindow(location)
                {
                    Owner = Window.GetWindow(this)
                };

                if (window.ShowDialog() == true)
                {
                    LoadData();
                }
            }
        }

        private void BtnDelete_Click(object sender, RoutedEventArgs e)
        {
            if (dataGrid.SelectedItem is BaseLocationInfo location)
            {
                var result = CustomMessageBox.Show(
                    $"确定要删除库位 \"{location.locationCode}\" 吗？",
                    "确认删除",
                    MessageBoxButton.YesNo
                );

                if (result == MessageBoxResult.Yes)
                {
                    try
                    {
                        _locationService.Delete(location);
                        CustomMessageBox.Show("删除成功", "提示");
                        LoadData();
                    }
                    catch (Exception ex)
                    {
                        CustomMessageBox.Show($"删除失败: {ex.Message}", "错误");
                    }
                }
            }
        }

        private void DataGrid_MouseDoubleClick(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            BtnEdit_Click(sender, e);
        }
    }

    public class LocationStatusConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is int status)
            {
                return status switch
                {
                    0 => "未使用",
                    1 => "已使用",
                    2 => "锁库",
                    3 => "异常",
                    _ => "未知"
                };
            }
            return "未知";
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

    public class IsFlagConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            if (value is int isFlag)
            {
                return isFlag == 1 ? "是" : "否";
            }
            return "否";
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}