368 lines
12 KiB
C#
368 lines
12 KiB
C#
using FATrace.Model;
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using FATrace.WPLApp.Core;
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using FATrace.WPLApp.Services;
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using FreeSql;
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using Prism.Commands;
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using Prism.Services.Dialogs;
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using System;
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using System.Collections.ObjectModel;
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using System.ComponentModel;
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using System.Linq;
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using System.Threading.Tasks;
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using System.Windows;
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namespace FATrace.WPLApp.ViewModels
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{
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/// <summary>
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/// 称重用户管理页面 VM（TbWeightUser 增删改查）
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/// </summary>
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public class WeightUserManageViewModel : NavigationViewModel
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{
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private readonly IFreeSql _fsql;
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private readonly ILogService _log;
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private readonly IDialogService _dialog;
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private readonly SysRunService _sys;
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public WeightUserManageViewModel(IFreeSql fsql, ILogService log, IDialogService dialogService, SysRunService sys)
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{
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_fsql = fsql;
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_log = log;
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_dialog = dialogService;
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_sys = sys;
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Items = new ObservableCollection<TbWeightUser>();
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SearchCommand = new DelegateCommand(async () => await SearchAsync(), () => !IsBusy)
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.ObservesProperty(() => IsBusy);
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ClearCommand = new DelegateCommand(ClearFilters, () => !IsBusy)
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.ObservesProperty(() => IsBusy);
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AddCommand = new DelegateCommand(AddUser, () => !IsBusy && CanEditUsers)
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.ObservesProperty(() => IsBusy)
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.ObservesProperty(() => CanEditUsers);
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EditCommand = new DelegateCommand(EditUser, () => !IsBusy && CanEditUsers && SelectedItem != null)
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.ObservesProperty(() => IsBusy)
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.ObservesProperty(() => CanEditUsers)
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.ObservesProperty(() => SelectedItem);
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DeleteCommand = new DelegateCommand(async () => await DeleteUserAsync(), () => !IsBusy && CanEditUsers && SelectedItem != null)
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.ObservesProperty(() => IsBusy)
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.ObservesProperty(() => CanEditUsers)
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.ObservesProperty(() => SelectedItem);
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FirstPageCommand = new DelegateCommand(async () => { if (PageIndex == 1) return; PageIndex = 1; await SearchAsync(); }, () => !IsBusy && PageIndex > 1)
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.ObservesProperty(() => IsBusy)
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.ObservesProperty(() => PageIndex);
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PrevPageCommand = new DelegateCommand(async () => { if (PageIndex <= 1) return; PageIndex -= 1; await SearchAsync(); }, () => !IsBusy && PageIndex > 1)
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.ObservesProperty(() => IsBusy)
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.ObservesProperty(() => PageIndex);
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NextPageCommand = new DelegateCommand(async () => { if (PageIndex >= TotalPages) return; PageIndex += 1; await SearchAsync(); }, () => !IsBusy && PageIndex < TotalPages)
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.ObservesProperty(() => IsBusy)
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.ObservesProperty(() => PageIndex)
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.ObservesProperty(() => TotalPages);
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LastPageCommand = new DelegateCommand(async () => { if (TotalPages <= 0 || PageIndex == TotalPages) return; PageIndex = TotalPages; await SearchAsync(); }, () => !IsBusy && PageIndex < TotalPages)
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.ObservesProperty(() => IsBusy)
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.ObservesProperty(() => PageIndex)
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.ObservesProperty(() => TotalPages);
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_sys.PropertyChanged += SysOnPropertyChanged;
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RaisePropertyChanged(nameof(CanEditUsers));
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}
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private void SysOnPropertyChanged(object? sender, PropertyChangedEventArgs e)
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{
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if (e.PropertyName == nameof(SysRunService.CurAccessLevel) || e.PropertyName == nameof(SysRunService.CurUser))
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{
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RaisePropertyChanged(nameof(CanEditUsers));
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}
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}
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/// <summary>
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/// 是否允许编辑用户（仅管理员）
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/// </summary>
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public bool CanEditUsers => string.Equals(_sys.CurAccessLevel, UserManageViewModel.AccessLevels.Admin, StringComparison.OrdinalIgnoreCase);
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#region 查询条件
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private string? _checkName;
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/// <summary>
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/// 确认者（模糊匹配）
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/// </summary>
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public string? CheckName
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{
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get => _checkName;
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set { _checkName = value; RaisePropertyChanged(); }
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}
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private string? _opName;
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/// <summary>
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/// 操作者（模糊匹配）
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/// </summary>
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public string? OpName
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{
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get => _opName;
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set { _opName = value; RaisePropertyChanged(); }
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}
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#endregion
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#region 列表与分页
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public ObservableCollection<TbWeightUser> Items { get; }
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private TbWeightUser? _selectedItem;
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/// <summary>
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/// 当前选中行
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/// </summary>
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public TbWeightUser? SelectedItem
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{
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get => _selectedItem;
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set { _selectedItem = value; RaisePropertyChanged(); }
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}
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private bool _isBusy;
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/// <summary>
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/// 是否忙碌
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/// </summary>
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public bool IsBusy
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{
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get => _isBusy;
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set { _isBusy = value; RaisePropertyChanged(); }
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}
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private int _totalCount;
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/// <summary>
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/// 总数
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/// </summary>
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public int TotalCount
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{
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get => _totalCount;
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set { _totalCount = value; RaisePropertyChanged(); }
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}
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private int _pageIndex = 1;
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/// <summary>
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/// 页码（从1开始）
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/// </summary>
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public int PageIndex
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{
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get => _pageIndex;
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set { _pageIndex = value < 1 ? 1 : value; RaisePropertyChanged(); }
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}
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private int _pageSize = 20;
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/// <summary>
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/// 页大小
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/// </summary>
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public int PageSize
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{
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get => _pageSize;
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set
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{
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var v = value <= 0 ? 20 : value;
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if (_pageSize != v)
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{
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_pageSize = v;
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RaisePropertyChanged();
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PageIndex = 1;
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if (!IsBusy) _ = SearchAsync();
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}
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}
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}
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private int _totalPages;
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/// <summary>
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/// 总页数
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/// </summary>
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public int TotalPages
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{
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get => _totalPages;
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set { _totalPages = value; RaisePropertyChanged(); }
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}
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#endregion
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#region 命令
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public DelegateCommand SearchCommand { get; }
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public DelegateCommand ClearCommand { get; }
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public DelegateCommand AddCommand { get; }
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public DelegateCommand EditCommand { get; }
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public DelegateCommand DeleteCommand { get; }
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public DelegateCommand FirstPageCommand { get; }
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public DelegateCommand PrevPageCommand { get; }
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public DelegateCommand NextPageCommand { get; }
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public DelegateCommand LastPageCommand { get; }
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#endregion
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private void ClearFilters()
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{
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CheckName = string.Empty;
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OpName = string.Empty;
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}
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private async Task SearchAsync()
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{
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if (IsBusy) return;
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try
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{
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IsBusy = true;
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await SearchCoreAsync();
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}
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catch (Exception ex)
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{
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_log.Error($"TbWeightUser 查询失败: {ex}");
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MessageBox.Show($"查询失败: {ex.Message}", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
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}
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finally
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{
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IsBusy = false;
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}
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}
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private async Task SearchCoreAsync()
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{
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_log.Info("TbWeightUser 查询开始");
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var data = await Task.Run(() =>
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{
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var q = _fsql.Select<TbWeightUser>();
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if (!string.IsNullOrWhiteSpace(CheckName))
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q = q.Where(a => a.CheckName != null && a.CheckName.Contains(CheckName));
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if (!string.IsNullOrWhiteSpace(OpName))
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q = q.Where(a => a.OpName != null && a.OpName.Contains(OpName));
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q = q.OrderByDescending(a => a.Id);
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var page = PageIndex < 1 ? 1 : PageIndex;
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var size = PageSize <= 0 ? 20 : PageSize;
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var list = q.Count(out var total)
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.Page(page, size)
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.ToList();
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var pages = total <= 0 || size <= 0 ? 0 : (int)Math.Ceiling(total * 1.0 / size);
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if (pages > 0 && page > pages)
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{
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page = pages;
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list = q.Page(page, size).ToList();
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}
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return (items: list, total: (int)total, normalizedPage: page, totalPages: pages);
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});
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Application.Current.Dispatcher.Invoke(() =>
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{
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Items.Clear();
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foreach (var it in data.items) Items.Add(it);
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TotalCount = data.total;
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TotalPages = data.totalPages;
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PageIndex = data.normalizedPage == 0 ? 1 : data.normalizedPage;
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});
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_log.Info($"TbWeightUser 查询完成，记录数: {TotalCount}");
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}
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private void AddUser()
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{
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var p = new DialogParameters
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{
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{ DialogKeys.Mode, DialogModes.Add }
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};
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_dialog.ShowDialog("DialogWeightUserEditView", p, async r =>
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{
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if (r.Result == ButtonResult.OK)
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{
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PageIndex = 1;
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await SearchAsync();
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}
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});
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}
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private void EditUser()
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{
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if (SelectedItem == null)
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{
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MessageBox.Show("请选择要编辑的用户", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
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return;
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}
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var p = new DialogParameters
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{
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{ DialogKeys.Mode, DialogModes.Edit },
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{ DialogKeys.UserId, SelectedItem.Id }
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};
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_dialog.ShowDialog("DialogWeightUserEditView", p, async r =>
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{
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if (r.Result == ButtonResult.OK)
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{
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await SearchAsync();
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}
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});
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}
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private async Task DeleteUserAsync()
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{
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if (SelectedItem == null)
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{
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MessageBox.Show("请选择要删除的用户", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
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return;
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}
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var ok = MessageBox.Show($"确认删除称重用户：{SelectedItem.CheckName}/{SelectedItem.OpName} ?", "确认", MessageBoxButton.YesNo, MessageBoxImage.Question);
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if (ok != MessageBoxResult.Yes) return;
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if (IsBusy) return;
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try
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{
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IsBusy = true;
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var id = SelectedItem.Id;
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await Task.Run(() =>
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{
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_fsql.Delete<TbWeightUser>(id).ExecuteAffrows();
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});
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_log.Info($"删除称重用户成功，Id={id}");
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SelectedItem = null;
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await SearchCoreAsync();
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}
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catch (Exception ex)
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{
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_log.Error($"删除称重用户失败: {ex}");
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MessageBox.Show($"删除失败: {ex.Message}", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
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}
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finally
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{
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IsBusy = false;
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}
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}
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/// <summary>
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/// 进入页面自动加载
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/// </summary>
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/// <param name="navigationContext">导航上下文</param>
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public override async void OnNavigatedTo(Prism.Regions.NavigationContext navigationContext)
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{
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await SearchAsync();
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}
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/// <summary>
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/// 弹窗参数 Key
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/// </summary>
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public static class DialogKeys
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{
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public const string Mode = "Mode";
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public const string UserId = "UserId";
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}
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/// <summary>
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/// 弹窗模式
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/// </summary>
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public static class DialogModes
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{
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public const string Add = "Add";
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public const string Edit = "Edit";
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}
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}
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}
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