Files
UniVerse/backend/UniVerse.Infrastructure/Services/LlmAnalysisService.cs
T

67 lines
2.5 KiB
C#

using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using UniVerse.Application.Interfaces;
using UniVerse.Domain.Enums;
using UniVerse.Infrastructure.Data;
namespace UniVerse.Infrastructure.Services;
public class LlmAnalysisService : ILlmAnalysisService
{
private readonly AppDbContext _db;
private readonly ILlmClient _llm;
private readonly IGamificationService _gamification;
private readonly ILogger<LlmAnalysisService> _logger;
public LlmAnalysisService(AppDbContext db, ILlmClient llm,
IGamificationService gamification, ILogger<LlmAnalysisService> logger)
{
_db = db; _llm = llm; _gamification = gamification; _logger = logger;
}
public async Task AnalyzeReviewAsync(int reviewId)
{
var review = await _db.Reviews.Include(r => r.Lecture)
.FirstOrDefaultAsync(r => r.Id == reviewId);
if (review == null || review.LlmStatus != ReviewLlmStatus.Pending) return;
try
{
var context = $"Lecture: {review.Lecture?.Title}";
var result = await _llm.AnalyzeReviewAsync(review.Text ?? "", context);
review.QualityScore = result.QualityScore;
review.Sentiment = Enum.TryParse<ReviewSentiment>(result.Sentiment, true, out var s)
? s : ReviewSentiment.Neutral;
review.LlmTags = result.Tags;
review.IsInformative = result.IsInformative;
review.LlmStatus = ReviewLlmStatus.Analyzed;
review.UpdatedAt = DateTime.UtcNow;
await _db.SaveChangesAsync();
if (result.IsInformative)
await _gamification.AwardCoinsAsync(review.UserId, 10,
CoinTransactionType.ReviewReward, reviewId: review.Id,
description: "Informative review reward");
await _gamification.CheckAndAwardAchievementsAsync(review.UserId);
_logger.LogInformation("Review {ReviewId} analyzed successfully", reviewId);
}
catch (Exception ex)
{
_logger.LogWarning(ex, "Failed to analyze review {ReviewId}, will retry later", reviewId);
}
}
public async Task ProcessPendingReviewsAsync()
{
var pending = await _db.Reviews
.Where(r => r.LlmStatus == ReviewLlmStatus.Pending)
.OrderBy(r => r.CreatedAt).Take(10)
.Select(r => r.Id).ToListAsync();
foreach (var id in pending)
await AnalyzeReviewAsync(id);
}
}