Добавил слой Infrastructure

backend/UniVerse.Infrastructure/Services/AchievementService.cs

@@ -0,0 +1,52 @@
+using Microsoft.EntityFrameworkCore;
+using UniVerse.Application.DTOs.Achievements;
+using UniVerse.Application.Interfaces;
+using UniVerse.Application.Mappings;
+using UniVerse.Domain.Entities;
+using UniVerse.Domain.Exceptions;
+using UniVerse.Infrastructure.Data;
+
+namespace UniVerse.Infrastructure.Services;
+
+public class AchievementService : IAchievementService
+{
+    private readonly AppDbContext _db;
+    public AchievementService(AppDbContext db) => _db = db;
+
+    public async Task<List<AchievementDto>> GetAllAsync() =>
+        await _db.Achievements.OrderBy(a => a.Name).Select(a => a.ToDto()).ToListAsync();
+
+    public async Task<AchievementDto> GetByIdAsync(int id)
+    {
+        var a = await _db.Achievements.FindAsync(id) ?? throw new NotFoundException("Achievement", id);
+        return a.ToDto();
+    }
+
+    public async Task<AchievementDto> CreateAsync(CreateAchievementRequest req)
+    {
+        var a = new Achievement
+        {
+            Name = req.Name, Description = req.Description, IconUrl = req.IconUrl,
+            XpReward = req.XpReward, CoinReward = req.CoinReward, Condition = req.Condition
+        };
+        _db.Achievements.Add(a);
+        await _db.SaveChangesAsync();
+        return a.ToDto();
+    }
+
+    public async Task<AchievementDto> UpdateAsync(int id, UpdateAchievementRequest req)
+    {
+        var a = await _db.Achievements.FindAsync(id) ?? throw new NotFoundException("Achievement", id);
+        a.Name = req.Name; a.Description = req.Description; a.IconUrl = req.IconUrl;
+        a.XpReward = req.XpReward; a.CoinReward = req.CoinReward; a.Condition = req.Condition;
+        await _db.SaveChangesAsync();
+        return a.ToDto();
+    }
+
+    public async Task DeleteAsync(int id)
+    {
+        var a = await _db.Achievements.FindAsync(id) ?? throw new NotFoundException("Achievement", id);
+        _db.Achievements.Remove(a);
+        await _db.SaveChangesAsync();
+    }
+}