Établissement d’un "Lawyer GPT" pour votre blog - Partie 5: Le client Windows (Français (French))

Introduction

Bienvenue à la partie 5! NousM SK1 avons construit l’ensemble du pipeline d’ingestion (Partie 4), comprendre les embeddings et la recherche par vecteur (Partie 3), et disposez de notre GPU (Partie 2). Maintenant, c’est le moment de mettre en place l’interface d’assistant à la rédaction réelle.

NOTE: C'est une partie des expériences que j'ai réalisées avec l'A.I. M SK1 rédaction assistée) + ma propre éditionMST4 La même voixM ST5 le même pragmatismeM st6 quelques doigts plus rapidesMst7

Pensez à GitHub Copilot ou les nouvelles fonctionnalités de l'AI dans Code VS - mais pour la rédaction d'un blogM SK1 Lorsque vous inscrivez,, le système recherche sémantiquement vos articles antérieurs et propose des suggestions pertinentes , fragments de codeMNK4 et liens internesMRK5

Choix du cadre d'interface

Nous avons trois options principales pour construire une application de bureau moderne Windows dans C#:

Comparaison du cadre

Caractéristique	WPF	Avalonia	MAUI S
Plate-forme	Windows seulement	Cross-platform
Maturité	Très mature (2006) MSC2 Mature SMC3 SMC4 Nouveau ESC5 MSC6
Soutien XAML	Compléte	Complète MSC2compatible MSC3 SMC4 Caractéristique différente ≥MSC5
Rendement	Excellent	Excellent
Bibliothèques de l'UI	Nombreux (Matériel de conception, ModerneWPFM SK3 MSC4 Croissant S	Limitée SMC6
Curve d'apprentissage	modérée	facile ( si vous connaissez le PAMM SK3 MSC4 modère MSC5
Écosystème	Huge	Augmentant	Le plus petit M

Mon choix: Avalonia

Pourquoi?

Cross-platform (can run on LinuxM SK2Mac if neededMSC3
Moderne, activement développé
WPF-compatible avec l'XAML ( facile à apprendre
Bon rendement
Écosystème en croissance

Mais les concepts s’appliquent aussi au PAM.

Architecture des applications

graph TB
    A[MainWindow] --> B[Editor Panel]
    A --> C[Suggestions Panel]
    A --> D[Search Panel]

    B --> E[AvalonEdit Component]
    B --> F[Markdown Preview]

    C --> G[Similar Posts List]
    C --> H[Code Snippets]
    C --> I[Suggested Links]

    D --> J[Semantic Search]
    D --> K[Keyword Filter]

    L[Services Layer] --> M[EmbeddingService]
    L --> N[VectorSearchService]
    L --> O[LLMService]

    B --> L
    C --> L
    D --> L

    class A mainWindow
    class B,C ui
    class L services

    classDef mainWindow stroke:#333,stroke-width:4px
    classDef ui stroke:#333,stroke-width:2px
    classDef services stroke:#333,stroke-width:2px

Composantes clés:

La fenêtre principale - Shell avec menu, barre de statut
Panneau de l'éditeur - À l'endroit où vous écrivez
Groupe de suggestions - AIM SK1 Suggestions motivées
Panel de recherche - Interface de recherche sémantique
La couche de services - Intégration du backend

Établissement du projet

# Create Avalonia MVVM application
dotnet new install Avalonia.Templates
dotnet new avalonia.mvvm -n Mostlylucid.BlogLLM.Client

cd Mostlylucid.BlogLLM.Client

# Add necessary packages (latest versions)
dotnet add package AvaloniaEdit
dotnet add package Markdown.Avalonia
dotnet add package CommunityToolkit.Mvvm

# Add references to our core library
dotnet add reference ../Mostlylucid.BlogLLM.Core

Emplacement de la fenêtre principale

Structure XAML

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:vm="using:Mostlylucid.BlogLLM.Client.ViewModels"
        xmlns:views="using:Mostlylucid.BlogLLM.Client.Views"
        x:Class="Mostlylucid.BlogLLM.Client.Views.MainWindow"
        x:DataType="vm:MainWindowViewModel"
        Title="Blog Writing Assistant"
        Width="1400" Height="900">

    <Design.DataContext>
        <vm:MainWindowViewModel />
    </Design.DataContext>

    <Grid RowDefinitions="Auto,*,Auto">
        <!-- Menu Bar -->
        <Menu Grid.Row="0">
            <MenuItem Header="_File">
                <MenuItem Header="_New Post" Command="{Binding NewPostCommand}" />
                <MenuItem Header="_Open Post" Command="{Binding OpenPostCommand}" />
                <MenuItem Header="_Save" Command="{Binding SaveCommand}" />
                <Separator />
                <MenuItem Header="E_xit" Command="{Binding ExitCommand}" />
            </MenuItem>
            <MenuItem Header="_Edit">
                <MenuItem Header="_Undo" Command="{Binding UndoCommand}" />
                <MenuItem Header="_Redo" Command="{Binding RedoCommand}" />
            </MenuItem>
            <MenuItem Header="_AI">
                <MenuItem Header="_Generate Suggestions" Command="{Binding GenerateSuggestionsCommand}" />
                <MenuItem Header="_Semantic Search" Command="{Binding OpenSearchCommand}" />
                <MenuItem Header="_Insert Link" Command="{Binding InsertLinkCommand}" />
            </MenuItem>
        </Menu>

        <!-- Main Content - Split View -->
        <Grid Grid.Row="1" ColumnDefinitions="2*,*">
            <!-- Left: Editor -->
            <Border Grid.Column="0" BorderBrush="LightGray" BorderThickness="0,0,1,0">
                <views:EditorView DataContext="{Binding EditorViewModel}" />
            </Border>

            <!-- Right: Suggestions -->
            <Border Grid.Column="1">
                <views:SuggestionsView DataContext="{Binding SuggestionsViewModel}" />
            </Border>
        </Grid>

        <!-- Status Bar -->
        <Border Grid.Row="2" Background="WhiteSmoke" Padding="8,4">
            <Grid ColumnDefinitions="*,Auto,Auto,Auto">
                <TextBlock Grid.Column="0" Text="{Binding StatusMessage}" />
                <TextBlock Grid.Column="1" Text="{Binding WordCount, StringFormat='Words: {0}'}" Margin="10,0" />
                <TextBlock Grid.Column="2" Text="{Binding CharCount, StringFormat='Chars: {0}'}" Margin="10,0" />
                <ProgressBar Grid.Column="3"
                             Width="100"
                             Height="16"
                             IsVisible="{Binding IsProcessing}"
                             IsIndeterminate="True" />
            </Grid>
        </Border>
    </Grid>
</Window>

Modèle de visualisation de la fenêtre principale

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Mostlylucid.BlogLLM.Client.Services;
using System.Threading.Tasks;

namespace Mostlylucid.BlogLLM.Client.ViewModels
{
    public partial class MainWindowViewModel : ViewModelBase
    {
        private readonly IEditorService _editorService;
        private readonly ISuggestionService _suggestionService;

        [ObservableProperty]
        private EditorViewModel _editorViewModel;

        [ObservableProperty]
        private SuggestionsViewModel _suggestionsViewModel;

        [ObservableProperty]
        private string _statusMessage = "Ready";

        [ObservableProperty]
        private int _wordCount;

        [ObservableProperty]
        private int _charCount;

        [ObservableProperty]
        private bool _isProcessing;

        public MainWindowViewModel(
            IEditorService editorService,
            ISuggestionService suggestionService)
        {
            _editorService = editorService;
            _suggestionService = suggestionService;

            EditorViewModel = new EditorViewModel(editorService);
            SuggestionsViewModel = new SuggestionsViewModel(suggestionService);

            // Subscribe to editor changes
            EditorViewModel.PropertyChanged += (s, e) =>
            {
                if (e.PropertyName == nameof(EditorViewModel.Text))
                {
                    UpdateStatistics();
                    _ = GenerateSuggestionsAsync();
                }
            };
        }

        [RelayCommand]
        private async Task NewPost()
        {
            EditorViewModel.Text = GenerateNewPostTemplate();
            StatusMessage = "New post created";
        }

        [RelayCommand]
        private async Task OpenPost()
        {
            var dialog = new OpenFileDialog
            {
                Filters = new List<FileDialogFilter>
                {
                    new FileDialogFilter { Name = "Markdown", Extensions = { "md" } }
                }
            };

            var result = await dialog.ShowAsync(GetMainWindow());
            if (result != null && result.Length > 0)
            {
                EditorViewModel.Text = await File.ReadAllTextAsync(result[0]);
                StatusMessage = $"Opened: {Path.GetFileName(result[0])}";
            }
        }

        [RelayCommand]
        private async Task Save()
        {
            var dialog = new SaveFileDialog
            {
                Filters = new List<FileDialogFilter>
                {
                    new FileDialogFilter { Name = "Markdown", Extensions = { "md" } }
                },
                DefaultExtension = "md"
            };

            var result = await dialog.ShowAsync(GetMainWindow());
            if (!string.IsNullOrEmpty(result))
            {
                await File.WriteAllTextAsync(result, EditorViewModel.Text);
                StatusMessage = $"Saved: {Path.GetFileName(result)}";
            }
        }

        [RelayCommand]
        private async Task GenerateSuggestions()
        {
            IsProcessing = true;
            StatusMessage = "Generating suggestions...";

            try
            {
                var currentText = EditorViewModel.Text;
                await SuggestionsViewModel.GenerateSuggestionsAsync(currentText);
                StatusMessage = "Suggestions generated";
            }
            catch (Exception ex)
            {
                StatusMessage = $"Error: {ex.Message}";
            }
            finally
            {
                IsProcessing = false;
            }
        }

        private void UpdateStatistics()
        {
            var text = EditorViewModel.Text ?? string.Empty;
            CharCount = text.Length;
            WordCount = text.Split(new[] { ' ', '\n', '\r', '\t' },
                StringSplitOptions.RemoveEmptyEntries).Length;
        }

        private string GenerateNewPostTemplate()
        {
            var today = DateTime.Now.ToString("yyyy-MM-ddTHH:mm");
            return $@"# New Blog Post


<datetime class=""hidden"">{today}</datetime>

## Introduction

Write your introduction here...

[TOC]

## Section 1

Content here...
";
        }

        private Window GetMainWindow() =>
            (Application.Current?.ApplicationLifetime as IClassicDesktopStyleApplicationLifetime)
                ?.MainWindow ?? throw new InvalidOperationException();
    }
}

Composante de l'éditeur

Nous utilisons AvalonEdit - une composante puissante d'éditeur de texte avec accentuation syntaxique

EditorView.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:avalonEdit="clr-namespace:AvaloniaEdit;assembly=AvaloniaEdit"
             x:Class="Mostlylucid.BlogLLM.Client.Views.EditorView">

    <Grid RowDefinitions="Auto,*,*">
        <!-- Toolbar -->
        <StackPanel Grid.Row="0" Orientation="Horizontal" Spacing="5" Margin="5">
            <Button Content="Bold" Command="{Binding InsertBoldCommand}" />
            <Button Content="Italic" Command="{Binding InsertItalicCommand}" />
            <Button Content="Code" Command="{Binding InsertCodeCommand}" />
            <Separator />
            <Button Content="H1" Command="{Binding InsertHeadingCommand}" CommandParameter="1" />
            <Button Content="H2" Command="{Binding InsertHeadingCommand}" CommandParameter="2" />
            <Button Content="H3" Command="{Binding InsertHeadingCommand}" CommandParameter="3" />
            <Separator />
            <Button Content="Link" Command="{Binding InsertLinkCommand}" />
            <Button Content="Image" Command="{Binding InsertImageCommand}" />
        </StackPanel>

        <!-- Editor -->
        <avalonEdit:TextEditor Grid.Row="1"
                               Name="Editor"
                               FontFamily="Consolas,Courier New"
                               FontSize="14"
                               ShowLineNumbers="True"
                               WordWrap="True"
                               Document="{Binding Document}"
                               SyntaxHighlighting="MarkDown" />

        <!-- Live Preview -->
        <Border Grid.Row="2" BorderBrush="LightGray" BorderThickness="0,1,0,0">
            <ScrollViewer>
                <MarkdownScrollViewer Markdown="{Binding Text}"
                                    Margin="10"
                                    Background="White" />
            </ScrollViewer>
        </Border>
    </Grid>
</UserControl>

Modèle de visualisation des éditeurs

using AvaloniaEdit.Document;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;

namespace Mostlylucid.BlogLLM.Client.ViewModels
{
    public partial class EditorViewModel : ViewModelBase
    {
        private readonly IEditorService _editorService;

        [ObservableProperty]
        private TextDocument _document = new();

        [ObservableProperty]
        private string _text = string.Empty;

        [ObservableProperty]
        private int _caretOffset;

        public EditorViewModel(IEditorService editorService)
        {
            _editorService = editorService;

            // Sync Document and Text
            Document.TextChanged += (s, e) =>
            {
                Text = Document.Text;
            };
        }

        [RelayCommand]
        private void InsertBold()
        {
            InsertMarkdownWrapper("**", "**", "bold text");
        }

        [RelayCommand]
        private void InsertItalic()
        {
            InsertMarkdownWrapper("*", "*", "italic text");
        }

        [RelayCommand]
        private void InsertCode()
        {
            InsertMarkdownWrapper("`", "`", "code");
        }

        [RelayCommand]
        private void InsertHeading(string level)
        {
            var headingMarker = new string('#', int.Parse(level));
            Document.Insert(CaretOffset, $"{headingMarker} Heading {level}\n");
        }

        [RelayCommand]
        private void InsertLink()
        {
            InsertMarkdownWrapper("[", "](url)", "link text");
        }

        [RelayCommand]
        private void InsertImage()
        {
            Document.Insert(CaretOffset, "![alt text](image-url.png)");
        }

        private void InsertMarkdownWrapper(string before, string after, string placeholder)
        {
            var selectedText = GetSelectedText();

            if (string.IsNullOrEmpty(selectedText))
            {
                Document.Insert(CaretOffset, $"{before}{placeholder}{after}");
            }
            else
            {
                var selectionStart = Document.GetOffset(Document.GetLocation(CaretOffset));
                Document.Replace(selectionStart, selectedText.Length, $"{before}{selectedText}{after}");
            }
        }

        private string GetSelectedText()
        {
            // This would get actual selection from AvalonEdit
            // Simplified for example
            return string.Empty;
        }
    }
}

Groupe de suggestions

C'est là que se produit la magie de l'AI - montrant des articles et suggestions sémantiquement similaires.

SuggestionsView.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             x:Class="Mostlylucid.BlogLLM.Client.Views.SuggestionsView">

    <TabControl>
        <!-- Similar Posts -->
        <TabItem Header="Similar Posts">
            <Grid RowDefinitions="Auto,*">
                <StackPanel Grid.Row="0" Margin="5">
                    <TextBlock Text="Related content from your blog:" FontWeight="Bold" />
                    <TextBlock Text="{Binding SimilarPostsCount, StringFormat='{0} posts found'}"
                               FontSize="11" Foreground="Gray" />
                </StackPanel>

                <ListBox Grid.Row="1"
                         ItemsSource="{Binding SimilarPosts}"
                         SelectedItem="{Binding SelectedPost}">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <Border BorderBrush="LightGray"
                                    BorderThickness="1"
                                    Padding="8"
                                    Margin="4"
                                    CornerRadius="4">
                                <StackPanel>
                                    <TextBlock Text="{Binding Title}"
                                               FontWeight="Bold"
                                               TextWrapping="Wrap" />
                                    <TextBlock Text="{Binding SectionHeading}"
                                               FontSize="11"
                                               Foreground="DarkBlue"
                                               Margin="0,2" />
                                    <TextBlock Text="{Binding Preview}"
                                               TextWrapping="Wrap"
                                               MaxHeight="60"
                                               FontSize="12"
                                               Margin="0,4" />
                                    <StackPanel Orientation="Horizontal" Spacing="10" Margin="0,4,0,0">
                                        <TextBlock Text="{Binding Score, StringFormat='Similarity: {0:P0}'}"
                                                   FontSize="11"
                                                   Foreground="Green" />
                                        <Button Content="Insert Link"
                                                Command="{Binding $parent[ListBox].DataContext.InsertLinkCommand}"
                                                CommandParameter="{Binding}"
                                                FontSize="11" />
                                        <Button Content="View"
                                                Command="{Binding $parent[ListBox].DataContext.ViewPostCommand}"
                                                CommandParameter="{Binding}"
                                                FontSize="11" />
                                    </StackPanel>
                                </StackPanel>
                            </Border>
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>
            </Grid>
        </TabItem>

        <!-- Code Snippets -->
        <TabItem Header="Code Snippets">
            <Grid RowDefinitions="Auto,*">
                <TextBlock Grid.Row="0"
                           Text="Relevant code from past posts:"
                           FontWeight="Bold"
                           Margin="5" />

                <ListBox Grid.Row="1" ItemsSource="{Binding CodeSnippets}">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <Border BorderBrush="LightGray"
                                    BorderThickness="1"
                                    Padding="8"
                                    Margin="4"
                                    Background="WhiteSmoke">
                                <StackPanel>
                                    <TextBlock Text="{Binding Language}"
                                               FontFamily="Consolas"
                                               FontSize="11"
                                               Foreground="DarkGray" />
                                    <TextBlock Text="{Binding Code}"
                                               FontFamily="Consolas"
                                               TextWrapping="Wrap"
                                               Margin="0,4" />
                                    <Button Content="Insert"
                                            Command="{Binding $parent[ListBox].DataContext.InsertCodeCommand}"
                                            CommandParameter="{Binding}"
                                            HorizontalAlignment="Right" />
                                </StackPanel>
                            </Border>
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>
            </Grid>
        </TabItem>

        <!-- AI Suggestions -->
        <TabItem Header="AI Suggestions">
            <Grid RowDefinitions="Auto,*,Auto">
                <TextBlock Grid.Row="0"
                           Text="AI-generated suggestions:"
                           FontWeight="Bold"
                           Margin="5" />

                <ScrollViewer Grid.Row="1">
                    <TextBlock Text="{Binding AiSuggestion}"
                               TextWrapping="Wrap"
                               Margin="10"
                               FontSize="13" />
                </ScrollViewer>

                <Button Grid.Row="2"
                        Content="Generate New Suggestion"
                        Command="{Binding RegenerateSuggestionCommand}"
                        Margin="5" />
            </Grid>
        </TabItem>
    </TabControl>
</UserControl>

Modèle de visualisation des suggestions

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Mostlylucid.BlogLLM.Client.Models;
using Mostlylucid.BlogLLM.Client.Services;
using System.Collections.ObjectModel;

namespace Mostlylucid.BlogLLM.Client.ViewModels
{
    public partial class SuggestionsViewModel : ViewModelBase
    {
        private readonly ISuggestionService _suggestionService;

        [ObservableProperty]
        private ObservableCollection<SimilarPost> _similarPosts = new();

        [ObservableProperty]
        private ObservableCollection<CodeSnippet> _codeSnippets = new();

        [ObservableProperty]
        private string _aiSuggestion = string.Empty;

        [ObservableProperty]
        private SimilarPost? _selectedPost;

        [ObservableProperty]
        private int _similarPostsCount;

        public SuggestionsViewModel(ISuggestionService suggestionService)
        {
            _suggestionService = suggestionService;
        }

        public async Task GenerateSuggestionsAsync(string currentText)
        {
            // Extract last few sentences as context
            var context = ExtractContext(currentText);

            // Search for similar posts
            var similarPosts = await _suggestionService.FindSimilarPostsAsync(context);
            SimilarPosts.Clear();
            foreach (var post in similarPosts)
            {
                SimilarPosts.Add(post);
            }
            SimilarPostsCount = SimilarPosts.Count;

            // Extract code snippets from similar posts
            var codeSnippets = await _suggestionService.ExtractCodeSnippetsAsync(similarPosts);
            CodeSnippets.Clear();
            foreach (var snippet in codeSnippets)
            {
                CodeSnippets.Add(snippet);
            }

            // Generate AI suggestion (we'll implement this in Part 6)
            // AiSuggestion = await _suggestionService.GenerateAiSuggestionAsync(currentText, similarPosts);
        }

        [RelayCommand]
        private void InsertLink(SimilarPost post)
        {
            var link = $"[{post.Title}](/blog/{post.Slug}#{post.SectionHeading.ToLower().Replace(" ", "-")})";
            // Notify EditorViewModel to insert link
            WeakReferenceMessenger.Default.Send(new InsertTextMessage(link));
        }

        [RelayCommand]
        private void ViewPost(SimilarPost post)
        {
            // Open in browser
            var url = $"https://www.mostlylucid.net/blog/{post.Slug}";
            Process.Start(new ProcessStartInfo { FileName = url, UseShellExecute = true });
        }

        [RelayCommand]
        private void InsertCode(CodeSnippet snippet)
        {
            var code = $"```{snippet.Language}\n{snippet.Code}\n```";
            WeakReferenceMessenger.Default.Send(new InsertTextMessage(code));
        }

        [RelayCommand]
        private async Task RegenerateSuggestion()
        {
            // To be implemented in Part 6 with LLM integration
            AiSuggestion = "AI suggestions will be available in Part 6...";
        }

        private string ExtractContext(string text, int sentences = 3)
        {
            // Get last N sentences as context for search
            var sentenceEndings = new[] { '.', '!', '?' };
            var sentences_found = 0;
            var index = text.Length - 1;

            while (index >= 0 && sentences_found < sentences)
            {
                if (sentenceEndings.Contains(text[index]))
                {
                    sentences_found++;
                }
                index--;
            }

            return index < 0 ? text : text.Substring(index + 1).Trim();
        }
    }
}

La couche de services

Service d'information et de communication

using Mostlylucid.BlogLLM.Client.Models;

namespace Mostlylucid.BlogLLM.Client.Services
{
    public interface ISuggestionService
    {
        Task<List<SimilarPost>> FindSimilarPostsAsync(string context);
        Task<List<CodeSnippet>> ExtractCodeSnippetsAsync(List<SimilarPost> posts);
        Task<string> GenerateAiSuggestionAsync(string currentText, List<SimilarPost> context);
    }
}

Mise en œuvre du service de suggestions

using Mostlylucid.BlogLLM.Client.Models;
using Mostlylucid.BlogLLM.Core.Services;

namespace Mostlylucid.BlogLLM.Client.Services
{
    public class SuggestionService : ISuggestionService
    {
        private readonly BatchEmbeddingService _embeddingService;
        private readonly QdrantVectorStore _vectorStore;

        public SuggestionService(
            BatchEmbeddingService embeddingService,
            QdrantVectorStore vectorStore)
        {
            _embeddingService = embeddingService;
            _vectorStore = vectorStore;
        }

        public async Task<List<SimilarPost>> FindSimilarPostsAsync(string context)
        {
            // Generate embedding for context
            var embedding = _embeddingService.GenerateEmbedding(context);

            // Search vector database
            var results = await _vectorStore.SearchAsync(
                queryEmbedding: embedding,
                limit: 10,
                languageFilter: "en"
            );

            // Convert to SimilarPost models
            return results.Select(r => new SimilarPost
            {
                Slug = r.BlogPostSlug,
                Title = r.BlogPostTitle,
                SectionHeading = r.SectionHeading,
                Preview = r.Text.Length > 200 ? r.Text.Substring(0, 200) + "..." : r.Text,
                FullText = r.Text,
                Score = r.Score
            }).ToList();
        }

        public async Task<List<CodeSnippet>> ExtractCodeSnippetsAsync(List<SimilarPost> posts)
        {
            var snippets = new List<CodeSnippet>();

            foreach (var post in posts)
            {
                // Extract code blocks from markdown
                var codeBlocks = ExtractCodeBlocks(post.FullText);
                snippets.AddRange(codeBlocks);
            }

            // Deduplicate and return top 5
            return snippets
                .GroupBy(s => s.Code)
                .Select(g => g.First())
                .Take(5)
                .ToList();
        }

        public async Task<string> GenerateAiSuggestionAsync(string currentText, List<SimilarPost> context)
        {
            // This will be implemented in Part 6 with LLM integration
            await Task.CompletedTask;
            return "AI generation coming in Part 6...";
        }

        private List<CodeSnippet> ExtractCodeBlocks(string markdown)
        {
            var snippets = new List<CodeSnippet>();
            var regex = new Regex(@"```(\w+)\n(.*?)\n```", RegexOptions.Singleline);
            var matches = regex.Matches(markdown);

            foreach (Match match in matches)
            {
                snippets.Add(new CodeSnippet
                {
                    Language = match.Groups[1].Value,
                    Code = match.Groups[2].Value.Trim()
                });
            }

            return snippets;
        }
    }
}

Modèles

namespace Mostlylucid.BlogLLM.Client.Models
{
    public class SimilarPost
    {
        public string Slug { get; set; } = string.Empty;
        public string Title { get; set; } = string.Empty;
        public string SectionHeading { get; set; } = string.Empty;
        public string Preview { get; set; } = string.Empty;
        public string FullText { get; set; } = string.Empty;
        public float Score { get; set; }
    }

    public class CodeSnippet
    {
        public string Language { get; set; } = string.Empty;
        public string Code { get; set; } = string.Empty;
    }

    public record InsertTextMessage(string Text);
}

Établissement d'une injection de dépendance

App.axaml.cs

using Avalonia;
using Avalonia.Controls.ApplicationLifetimes;
using Avalonia.Markup.Xaml;
using Microsoft.Extensions.DependencyInjection;
using Mostlylucid.BlogLLM.Client.Services;
using Mostlylucid.BlogLLM.Client.ViewModels;
using Mostlylucid.BlogLLM.Client.Views;
using Mostlylucid.BlogLLM.Core.Services;

namespace Mostlylucid.BlogLLM.Client
{
    public partial class App : Application
    {
        public IServiceProvider Services { get; private set; } = null!;

        public override void Initialize()
        {
            AvaloniaXamlLoader.Load(this);
        }

        public override void OnFrameworkInitializationCompleted()
        {
            // Setup DI
            var services = new ServiceCollection();

            // Register core services
            services.AddSingleton(_ => new BatchEmbeddingService(
                modelPath: "C:\\models\\bge-base-en-onnx\\model.onnx",
                tokenizerPath: "C:\\models\\bge-base-en-onnx\\tokenizer.json",
                useGpu: true
            ));

            services.AddSingleton(_ => new QdrantVectorStore(
                host: "localhost",
                port: 6334
            ));

            // Register app services
            services.AddSingleton<IEditorService, EditorService>();
            services.AddSingleton<ISuggestionService, SuggestionService>();

            // Register ViewModels
            services.AddTransient<MainWindowViewModel>();
            services.AddTransient<EditorViewModel>();
            services.AddTransient<SuggestionsViewModel>();

            Services = services.BuildServiceProvider();

            // Create main window
            if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
            {
                desktop.MainWindow = new MainWindow
                {
                    DataContext = Services.GetRequiredService<MainWindowViewModel>()
                };
            }

            base.OnFrameworkInitializationCompleted();
        }
    }
}

Utilisation de l'application

dotnet run

Vous devriez voir:

Panneau gauche: Éditeur de marquage avec barre d'outils et vue en direct
Panneau droit: Postes similaires basés sur ce que vous écrivez
barre de situation: WordM SK1Indicateur du nombre de caractères et de traitement

À mesure que vous inscrivez,, le panneau de suggestions se met à jour en temps réel avec des contenus sémantiquement similaires provenant de votre blog.

Optimisation du rendement

Déboucher la recherche

Don' ne recherchez pas sur chaque touche de clé - attendez la pause:

public partial class EditorViewModel : ViewModelBase
{
    private System.Timers.Timer _searchDebounceTimer;
    private const int DebounceMs = 500;

    public EditorViewModel(IEditorService editorService)
    {
        _editorService = editorService;

        _searchDebounceTimer = new System.Timers.Timer(DebounceMs);
        _searchDebounceTimer.AutoReset = false;
        _searchDebounceTimer.Elapsed += async (s, e) =>
        {
            await GenerateSuggestionsAsync();
        };

        Document.TextChanged += (s, e) =>
        {
            Text = Document.Text;

            // Restart debounce timer
            _searchDebounceTimer.Stop();
            _searchDebounceTimer.Start();
        };
    }

    private async Task GenerateSuggestionsAsync()
    {
        var context = ExtractContext(Text);
        await Dispatcher.UIThread.InvokeAsync(async () =>
        {
            await SuggestionsViewModel.GenerateSuggestionsAsync(context);
        });
    }
}

Cachement des embeddings

Emplacements de cache pour les contextes récemment typés:

public class EmbeddingCache
{
    private readonly Dictionary<string, (float[] embedding, DateTime timestamp)> _cache = new();
    private const int MaxCacheSize = 100;
    private readonly TimeSpan _cacheExpiration = TimeSpan.FromMinutes(10);

    public bool TryGet(string text, out float[] embedding)
    {
        if (_cache.TryGetValue(text, out var cached))
        {
            if (DateTime.Now - cached.timestamp < _cacheExpiration)
            {
                embedding = cached.embedding;
                return true;
            }
            _cache.Remove(text);
        }

        embedding = null;
        return false;
    }

    public void Set(string text, float[] embedding)
    {
        if (_cache.Count >= MaxCacheSize)
        {
            // Remove oldest
            var oldest = _cache.OrderBy(kv => kv.Value.timestamp).First();
            _cache.Remove(oldest.Key);
        }

        _cache[text] = (embedding, DateTime.Now);
    }
}

Résumé

Nous avons construit un client Windows complet avec

✅ Avalonia Cadre d'interface avec modèle MVVM
✅ Éditeur de marquage avec une visualisation en direct (AvalonEdit)
✅ Réel- recherche sémantique en temps tel que vous y inscrivez
✅ Panel de suggestions montrant des articles similaires
✅ Extraction et insertion de fragments de code
✅ Création de liens vers des postes connexes
✅ Recherche arrêtée pour le rendement
✅ Architecture d'injection dépendance

Qu’est-ce que's Suivant?

À l'intérieur Partie 6: Intégration locale de LLM, nous 'intégrerons l’inférence locale LLMM SK2

Établissement LLamaSharp pour l'exécution du modèle local
Téléchargement et quantification des modèles (Llama 2, MistralM SK2
Format GGUF et quantisation expliquée
Inférence en cours sur le GPU A4000
Générer des suggestions de rédaction réelles
Ingénierie rapide pour écrire un blog

Nous verrons enfin les suggestions générées par AI dans le panel de propositions.

Partie 1: Introduction & Architecture
Partie 2: Établissement d'un GPU & CUDA en C#
Partie 3: Comprendre les emplacements & Bases de données vectorielles
Partie 4: Établissement du pipeline d’ingestion
Partie 5: Le client Windows (le présent articleM SK1
Partie 6: Intégration locale de LLM
Partie 7: Production de contenu & Génie rapide
Partie 8: Faits avancés & Déploiement de la production

Ressources

Nous vous ferons plaisir. Partie 6!