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 System;
 6  using System.Collections.Generic;
 7  using System.Collections.ObjectModel;
 8  using System.ComponentModel;
 9  using System.Linq;
10  using System.Runtime.CompilerServices;
11  using System.Text.Json;
12  using System.Text.Json.Serialization;
13  
14  namespace Microsoft.PowerToys.Settings.UI.Library
15  {
16      /// <summary>
17      /// Configuration for Paste AI features (custom action transformations like custom prompt processing)
18      /// </summary>
19      public class PasteAIConfiguration : INotifyPropertyChanged
20      {
21          private string _activeProviderId = string.Empty;
22          private ObservableCollection<PasteAIProviderDefinition> _providers = new();
23  
24          public event PropertyChangedEventHandler PropertyChanged;
25  
26          [JsonPropertyName("active-provider-id")]
27          public string ActiveProviderId
28          {
29              get => _activeProviderId;
30              set => SetProperty(ref _activeProviderId, value ?? string.Empty);
31          }
32  
33          [JsonPropertyName("providers")]
34          public ObservableCollection<PasteAIProviderDefinition> Providers
35          {
36              get => _providers;
37              set => SetProperty(ref _providers, value ?? new ObservableCollection<PasteAIProviderDefinition>());
38          }
39  
40          [JsonIgnore]
41          public PasteAIProviderDefinition ActiveProvider
42          {
43              get
44              {
45                  if (_providers is null || _providers.Count == 0)
46                  {
47                      return null;
48                  }
49  
50                  if (!string.IsNullOrWhiteSpace(_activeProviderId))
51                  {
52                      var match = _providers.FirstOrDefault(provider => string.Equals(provider.Id, _activeProviderId, StringComparison.OrdinalIgnoreCase));
53                      if (match is not null)
54                      {
55                          return match;
56                      }
57                  }
58  
59                  return _providers[0];
60              }
61          }
62  
63          [JsonIgnore]
64          public AIServiceType ActiveServiceTypeKind => ActiveProvider?.ServiceTypeKind ?? AIServiceType.OpenAI;
65  
66          public override string ToString()
67              => JsonSerializer.Serialize(this, SettingsSerializationContext.Default.PasteAIConfiguration);
68  
69          protected bool SetProperty<T>(ref T field, T value, [CallerMemberName] string propertyName = null)
70          {
71              if (EqualityComparer<T>.Default.Equals(field, value))
72              {
73                  return false;
74              }
75  
76              field = value;
77              OnPropertyChanged(propertyName);
78              return true;
79          }
80  
81          protected void OnPropertyChanged(string propertyName)
82          {
83              PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
84          }
85      }
86  }