Добавил слой Infrastructure

backend/UniVerse.Infrastructure/Services/LocationService.cs

@@ -0,0 +1,64 @@
+using Microsoft.EntityFrameworkCore;
+using UniVerse.Application.DTOs.Locations;
+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 LocationService : ILocationService
+{
+    private readonly AppDbContext _db;
+
+    public LocationService(AppDbContext db) => _db = db;
+
+    public async Task<List<LocationDto>> GetAllAsync() =>
+        await _db.Locations.OrderBy(l => l.Name)
+            .Select(l => new LocationDto(l.Id, l.Name, l.Building, l.Room, l.Address, l.CreatedAt))
+            .ToListAsync();
+
+    public async Task<LocationDto> GetByIdAsync(int id)
+    {
+        var loc = await _db.Locations.FindAsync(id)
+            ?? throw new NotFoundException("Location", id);
+        return loc.ToDto();
+    }
+
+    public async Task<LocationDto> CreateAsync(CreateLocationRequest request)
+    {
+        var loc = new Location
+        {
+            Name = request.Name,
+            Building = request.Building,
+            Room = request.Room,
+            Address = request.Address
+        };
+        _db.Locations.Add(loc);
+        await _db.SaveChangesAsync();
+        return loc.ToDto();
+    }
+
+    public async Task<LocationDto> UpdateAsync(int id, UpdateLocationRequest request)
+    {
+        var loc = await _db.Locations.FindAsync(id)
+            ?? throw new NotFoundException("Location", id);
+
+        loc.Name = request.Name;
+        loc.Building = request.Building;
+        loc.Room = request.Room;
+        loc.Address = request.Address;
+
+        await _db.SaveChangesAsync();
+        return loc.ToDto();
+    }
+
+    public async Task DeleteAsync(int id)
+    {
+        var loc = await _db.Locations.FindAsync(id)
+            ?? throw new NotFoundException("Location", id);
+        _db.Locations.Remove(loc);
+        await _db.SaveChangesAsync();
+    }
+}