feat: изменил логику анализа отзывов

backend/UniVerse.Api/BackgroundServices/LlmProcessingBackgroundService.cs

@@ -1,36 +0,0 @@
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Hosting;
-using Microsoft.Extensions.Logging;
-using UniVerse.Application.Interfaces;
-
-namespace UniVerse.Api.BackgroundServices;
-
-public class LlmProcessingBackgroundService : BackgroundService
-{
-    private readonly IServiceProvider _services;
-    private readonly ILogger<LlmProcessingBackgroundService> _logger;
-
-    public LlmProcessingBackgroundService(IServiceProvider services, ILogger<LlmProcessingBackgroundService> logger)
-    {
-        _services = services; _logger = logger;
-    }
-
-    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
-    {
-        _logger.LogInformation("LLM Processing Background Service started");
-        while (!stoppingToken.IsCancellationRequested)
-        {
-            try
-            {
-                using var scope = _services.CreateScope();
-                var llmService = scope.ServiceProvider.GetRequiredService<ILlmAnalysisService>();
-                await llmService.ProcessPendingReviewsAsync();
-            }
-            catch (Exception ex)
-            {
-                _logger.LogError(ex, "Error in LLM processing background service");
-            }
-            await Task.Delay(TimeSpan.FromMinutes(2), stoppingToken);
-        }
-    }
-}

backend/UniVerse.Api/BackgroundServices/ReviewAnalysisQueue.cs

@@ -0,0 +1,21 @@
+using System.Threading.Channels;
+using UniVerse.Application.Interfaces;
+
+namespace UniVerse.Api.BackgroundServices;
+
+public sealed class ReviewAnalysisQueue : IReviewAnalysisQueue
+{
+    private readonly Channel<int> _channel = Channel.CreateUnbounded<int>(new UnboundedChannelOptions
+    {
+        SingleReader = false,
+        SingleWriter = false
+    });
+
+    public async Task EnqueueAsync(int reviewId, CancellationToken cancellationToken = default)
+    {
+        await _channel.Writer.WriteAsync(reviewId, cancellationToken);
+    }
+
+    public IAsyncEnumerable<int> ReadAllAsync(CancellationToken cancellationToken) =>
+        _channel.Reader.ReadAllAsync(cancellationToken);
+}

backend/UniVerse.Api/BackgroundServices/ReviewAnalysisWorker.cs

@@ -0,0 +1,96 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Options;
+using UniVerse.Api.Options;
+using UniVerse.Application.Interfaces;
+using UniVerse.Domain.Enums;
+using UniVerse.Infrastructure.Data;
+
+namespace UniVerse.Api.BackgroundServices;
+
+public sealed class ReviewAnalysisWorker : BackgroundService
+{
+    private readonly IServiceProvider _services;
+    private readonly ReviewAnalysisQueue _queue;
+    private readonly ReviewAnalysisOptions _options;
+    private readonly ILogger<ReviewAnalysisWorker> _logger;
+
+    public ReviewAnalysisWorker(
+        IServiceProvider services,
+        ReviewAnalysisQueue queue,
+        IOptions<ReviewAnalysisOptions> options,
+        ILogger<ReviewAnalysisWorker> logger)
+    {
+        _services = services;
+        _queue = queue;
+        _options = options.Value;
+        _logger = logger;
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        var maxConcurrency = Math.Max(1, _options.MaxConcurrentProcessing);
+        _logger.LogInformation(
+            "Review analysis worker started with max concurrency {MaxConcurrency}",
+            maxConcurrency);
+
+        await EnqueueExistingPendingReviewsAsync(stoppingToken);
+
+        var workers = Enumerable.Range(1, maxConcurrency)
+            .Select(workerNumber => ProcessQueueAsync(workerNumber, stoppingToken))
+            .ToArray();
+
+        try
+        {
+            await Task.WhenAll(workers);
+        }
+        catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested)
+        {
+            _logger.LogInformation("Review analysis worker stopped");
+        }
+    }
+
+    private async Task EnqueueExistingPendingReviewsAsync(CancellationToken cancellationToken)
+    {
+        using var scope = _services.CreateScope();
+        var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
+
+        var pendingReviewIds = await db.Reviews
+            .Where(r => r.LlmStatus == ReviewLlmStatus.Pending)
+            .OrderBy(r => r.CreatedAt)
+            .Select(r => r.Id)
+            .ToListAsync(cancellationToken);
+
+        foreach (var reviewId in pendingReviewIds)
+            await _queue.EnqueueAsync(reviewId, cancellationToken);
+
+        if (pendingReviewIds.Count > 0)
+            _logger.LogInformation(
+                "Queued {ReviewCount} pending reviews for immediate analysis",
+                pendingReviewIds.Count);
+    }
+
+    private async Task ProcessQueueAsync(int workerNumber, CancellationToken cancellationToken)
+    {
+        await foreach (var reviewId in _queue.ReadAllAsync(cancellationToken))
+        {
+            try
+            {
+                using var scope = _services.CreateScope();
+                var llmService = scope.ServiceProvider.GetRequiredService<ILlmAnalysisService>();
+                await llmService.AnalyzeReviewAsync(reviewId);
+            }
+            catch (OperationCanceledException) when (cancellationToken.IsCancellationRequested)
+            {
+                throw;
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(
+                    ex,
+                    "Review analysis worker {WorkerNumber} failed to process review {ReviewId}",
+                    workerNumber,
+                    reviewId);
+            }
+        }
+    }
+}