1  // Copyright (c) Microsoft Corporation
 2  // The Microsoft Corporation licenses this file to you under the MIT license.
 3  // See the LICENSE file in the project root for more information.
 4  
 5  using Microsoft.CmdPal.Core.Common.Services;
 6  using Microsoft.CmdPal.UI.ViewModels;
 7  
 8  namespace Microsoft.CmdPal.UI;
 9  
10  internal sealed class RunHistoryService : IRunHistoryService
11  {
12      private readonly AppStateModel _appStateModel;
13  
14      public RunHistoryService(AppStateModel appStateModel)
15      {
16          _appStateModel = appStateModel;
17      }
18  
19      public IReadOnlyList<string> GetRunHistory()
20      {
21          if (_appStateModel.RunHistory.Count == 0)
22          {
23              var history = Microsoft.Terminal.UI.RunHistory.CreateRunHistory();
24              _appStateModel.RunHistory.AddRange(history);
25          }
26  
27          return _appStateModel.RunHistory;
28      }
29  
30      public void ClearRunHistory()
31      {
32          _appStateModel.RunHistory.Clear();
33      }
34  
35      public void AddRunHistoryItem(string item)
36      {
37          // insert at the beginning of the list
38          if (string.IsNullOrWhiteSpace(item))
39          {
40              return; // Do not add empty or whitespace items
41          }
42  
43          _appStateModel.RunHistory.Remove(item);
44  
45          // Add the item to the front of the history
46          _appStateModel.RunHistory.Insert(0, item);
47  
48          AppStateModel.SaveState(_appStateModel);
49      }
50  }