363 lines
13 KiB
C#
363 lines
13 KiB
C#
using Logger;
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using SqlSugar;
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using System.Collections.ObjectModel;
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using System.Data;
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using System.IO;
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using System.Text;
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using System.Windows.Input;
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using UIShare.GlobalVariable;
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using UIShare.PubEvent;
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using UIShare.ViewModelBase;
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namespace MonitorModule.ViewModels
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{
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/// <summary>
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/// 记录界面：用于查看运行目录下 SQL/ADP.db 中的数据。
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/// 功能：表选择 / 关键字 WHERE 查询 / 分页 / 导出 CSV。
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/// 仍延续 ScopedContext 隔离 + 双击展开 的范式，每个工位独立一份查询状态。
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/// </summary>
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public class RecordViewModel : NavigateViewModelBase, IRegionMemberLifetime, IDisposable
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{
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#region 私有字段
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// 数据库相对路径：运行目录\SQL\ADP.db（数据库未就绪时容错处理，不抛异常）
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private static readonly string DbFolder = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "SQL");
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private static readonly string DbPath = Path.Combine(DbFolder, "ADP.db");
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private static readonly string ConnStr = $"Data Source={DbPath};Version=3;";
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private readonly IScopedProvider _scope;
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#endregion
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#region 隔离演示属性（保留 ScopedContext 验证用）
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public bool KeepAlive => true;
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public ScopedContext _scopedContext { get; }
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// 公开一份 GlobalInfo 供双击展开逻辑使用（基类的 _globalInfo 是 private）
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public GlobalInfo GlobalInfoRef { get; }
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#endregion
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#region 顶部工位标题
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private string _testStatus = string.Empty;
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public string TestStatus
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{
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get => _testStatus;
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set => SetProperty(ref _testStatus, value);
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}
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#endregion
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#region 数据库 / 表 / 查询条件
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private ObservableCollection<string> _tableNames = new();
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public ObservableCollection<string> TableNames
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{
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get => _tableNames;
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set => SetProperty(ref _tableNames, value);
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}
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private string? _selectedTable;
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public string? SelectedTable
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{
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get => _selectedTable;
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set
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{
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if (SetProperty(ref _selectedTable, value))
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{
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PageIndex = 1;
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Query();
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}
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}
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}
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// 用户填写的 WHERE 子句（不带 WHERE 关键字），例如：Status='OK' AND Id>10
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private string _whereClause = string.Empty;
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public string WhereClause
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{
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get => _whereClause;
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set => SetProperty(ref _whereClause, value);
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}
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private DataTable _resultTable = new();
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public DataTable ResultTable
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{
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get => _resultTable;
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set => SetProperty(ref _resultTable, value);
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}
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private string _statusMessage = "未连接";
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public string StatusMessage
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{
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get => _statusMessage;
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set => SetProperty(ref _statusMessage, value);
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}
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#endregion
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#region 分页
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private int _pageIndex = 1;
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public int PageIndex
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{
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get => _pageIndex;
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set => SetProperty(ref _pageIndex, value);
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}
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private int _pageSize = 50;
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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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if (SetProperty(ref _pageSize, value <= 0 ? 50 : value))
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{
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RaisePropertyChanged(nameof(TotalPages));
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PageIndex = 1;
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Query();
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}
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}
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}
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private long _totalCount;
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public long TotalCount
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{
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get => _totalCount;
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set
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{
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SetProperty(ref _totalCount, value);
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RaisePropertyChanged(nameof(TotalPages));
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}
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}
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public int TotalPages
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{
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get
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{
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if (PageSize <= 0) return 1;
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var pages = (int)((TotalCount + PageSize - 1) / PageSize);
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return pages <= 0 ? 1 : pages;
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}
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}
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#endregion
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#region 命令
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public ICommand LoadedCommand { get; }
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public ICommand RefreshTablesCommand { get; }
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public ICommand QueryCommand { get; }
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public ICommand FirstPageCommand { get; }
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public ICommand PrevPageCommand { get; }
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public ICommand NextPageCommand { get; }
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public ICommand LastPageCommand { get; }
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public ICommand ExportCsvCommand { get; }
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// 双击展开/折叠：与 MonitorView/AutomatedTestingView 共用
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public ICommand RefreshCommand { get; }
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#endregion
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public RecordViewModel(IContainerExtension container) : base(container)
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{
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_scope = container.CreateScope();
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GlobalInfoRef = container.Resolve<GlobalInfo>();
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_scopedContext = _scope.Resolve<ScopedContext>();
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LoadedCommand = new DelegateCommand(LoadTables);
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RefreshTablesCommand = new DelegateCommand(LoadTables);
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QueryCommand = new DelegateCommand(() => { PageIndex = 1; Query(); });
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FirstPageCommand = new DelegateCommand(() => { if (PageIndex > 1) { PageIndex = 1; Query(); } });
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PrevPageCommand = new DelegateCommand(() => { if (PageIndex > 1) { PageIndex--; Query(); } });
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NextPageCommand = new DelegateCommand(() => { if (PageIndex < TotalPages) { PageIndex++; Query(); } });
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LastPageCommand = new DelegateCommand(() => { if (PageIndex < TotalPages) { PageIndex = TotalPages; Query(); } });
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ExportCsvCommand = new DelegateCommand(ExportCsv);
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RefreshCommand = new DelegateCommand(OnExpand);
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}
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public void Dispose()
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{
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_scope?.Dispose();
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}
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#region 数据库操作
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private SqlSugarClient CreateClient()
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{
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return new SqlSugarClient(new ConnectionConfig
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{
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DbType = SqlSugar.DbType.Sqlite,
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ConnectionString = ConnStr,
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IsAutoCloseConnection = true,
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InitKeyType = InitKeyType.Attribute
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});
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}
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/// <summary>
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/// 读取数据库中的所有用户表。数据库不存在时不报错，仅在状态栏提示。
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/// </summary>
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private void LoadTables()
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{
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try
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{
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if (!Directory.Exists(DbFolder)) Directory.CreateDirectory(DbFolder);
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if (!File.Exists(DbPath))
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{
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TableNames = new ObservableCollection<string>();
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SelectedTable = null;
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ResultTable = new DataTable();
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TotalCount = 0;
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StatusMessage = $"数据库尚未创建：{DbPath}";
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return;
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}
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using var db = CreateClient();
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var tables = db.DbMaintenance.GetTableInfoList(false)
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.Select(t => t.Name)
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.OrderBy(n => n)
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.ToList();
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TableNames = new ObservableCollection<string>(tables);
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if (tables.Count == 0)
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{
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SelectedTable = null;
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ResultTable = new DataTable();
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TotalCount = 0;
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StatusMessage = "数据库已连接，但暂无数据表";
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}
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else
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{
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StatusMessage = $"已连接：{DbPath}（{tables.Count} 张表）";
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if (string.IsNullOrEmpty(SelectedTable) || !tables.Contains(SelectedTable))
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{
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SelectedTable = tables[0]; // setter 会触发 Query
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}
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else
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{
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Query();
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}
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}
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}
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catch (Exception ex)
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{
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LoggerHelper.ErrorWithNotify($"加载数据表失败：{ex.Message}");
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StatusMessage = $"加载失败：{ex.Message}";
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}
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}
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/// <summary>
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/// 执行分页查询。WHERE 为空则查询全部。
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/// </summary>
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private void Query()
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{
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if (string.IsNullOrEmpty(SelectedTable) || !File.Exists(DbPath))
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{
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ResultTable = new DataTable();
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TotalCount = 0;
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return;
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}
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try
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{
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using var db = CreateClient();
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string table = $"[{SelectedTable}]";
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string where = string.IsNullOrWhiteSpace(WhereClause) ? "1=1" : WhereClause;
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// COUNT 总数
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var countSql = $"SELECT COUNT(*) FROM {table} WHERE {where}";
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TotalCount = db.Ado.GetLong(countSql);
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// 修正越界
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if (PageIndex > TotalPages) PageIndex = TotalPages;
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if (PageIndex < 1) PageIndex = 1;
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int offset = (PageIndex - 1) * PageSize;
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var dataSql = $"SELECT * FROM {table} WHERE {where} LIMIT {PageSize} OFFSET {offset}";
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ResultTable = db.Ado.GetDataTable(dataSql);
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StatusMessage = $"表 [{SelectedTable}] 共 {TotalCount} 行 第 {PageIndex}/{TotalPages} 页";
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}
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catch (Exception ex)
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{
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LoggerHelper.ErrorWithNotify($"查询失败：{ex.Message}");
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StatusMessage = $"查询失败：{ex.Message}";
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ResultTable = new DataTable();
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TotalCount = 0;
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}
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}
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#endregion
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#region 导出 CSV
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/// <summary>
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/// 按当前 WHERE 条件导出全部结果到 CSV（不分页）。
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/// </summary>
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private void ExportCsv()
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{
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if (string.IsNullOrEmpty(SelectedTable) || !File.Exists(DbPath))
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{
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StatusMessage = "无可导出数据";
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return;
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}
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var dlg = new Microsoft.Win32.SaveFileDialog
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{
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Filter = "CSV 文件 (*.csv)|*.csv|所有文件|*.*",
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FileName = $"{SelectedTable}_{DateTime.Now:yyyyMMdd_HHmmss}.csv",
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Title = $"导出 [{SelectedTable}] 为 CSV"
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};
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if (dlg.ShowDialog() != true) return;
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try
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{
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using var db = CreateClient();
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string table = $"[{SelectedTable}]";
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string where = string.IsNullOrWhiteSpace(WhereClause) ? "1=1" : WhereClause;
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var sql = $"SELECT * FROM {table} WHERE {where}";
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var dt = db.Ado.GetDataTable(sql);
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WriteCsv(dlg.FileName, dt);
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StatusMessage = $"导出完成：{dlg.FileName}（{dt.Rows.Count} 行）";
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LoggerHelper.InfoWithNotify($"工位 [{TestStatus}] 导出 [{SelectedTable}] 至 {dlg.FileName}，共 {dt.Rows.Count} 行");
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}
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catch (Exception ex)
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{
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LoggerHelper.ErrorWithNotify($"导出失败：{ex.Message}");
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StatusMessage = $"导出失败：{ex.Message}";
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}
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}
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private static void WriteCsv(string path, DataTable dt)
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{
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// 写 UTF-8 BOM 让 Excel 直接识别中文
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using var sw = new StreamWriter(path, false, new UTF8Encoding(true));
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// 表头
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sw.WriteLine(string.Join(",", dt.Columns.Cast<DataColumn>().Select(c => Escape(c.ColumnName))));
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// 行
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foreach (DataRow row in dt.Rows)
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{
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sw.WriteLine(string.Join(",", row.ItemArray.Select(v => Escape(v?.ToString() ?? string.Empty))));
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}
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}
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private static string Escape(string field)
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{
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if (field.Contains('"') || field.Contains(',') || field.Contains('\r') || field.Contains('\n'))
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{
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return "\"" + field.Replace("\"", "\"\"") + "\"";
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}
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return field;
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}
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#endregion
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#region 双击展开
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private void OnExpand()
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{
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if (string.IsNullOrEmpty(TestStatus)) return;
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_eventAggregator.GetEvent<ExpandViewEvent>().Publish(TestStatus);
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GlobalInfoRef.CurrentScope = TestStatus;
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}
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#endregion
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#region 导航
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public override void OnNavigatedTo(NavigationContext navigationContext)
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{
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base.OnNavigatedTo(navigationContext);
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if (navigationContext.Parameters.ContainsKey("Name"))
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{
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TestStatus = navigationContext.Parameters.GetValue<string>("Name");
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}
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// 进入界面时自动加载表
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LoadTables();
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}
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#endregion
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}
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}
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