Added ServiceController

Birdmap.BLL/Services/ServiceService.cs

@@ -0,0 +1,55 @@
+using Birdmap.BLL.Exceptions;
+using Birdmap.BLL.Interfaces;
+using Birdmap.DAL;
+using Birdmap.DAL.Entities;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Birdmap.BLL.Services
+{
+    public class ServiceService : IServiceService
+    {
+        private readonly BirdmapContext _context;
+
+        public ServiceService(BirdmapContext context)
+        {
+            _context = context;
+        }
+
+        public async Task<Service> CreateServiceAsync(Service service)
+        {
+            _context.Services.Add(service);
+            await _context.SaveChangesAsync();
+
+            return service;
+        }
+
+        public Task DeleteServiceAsync(int id)
+        {
+            var service = _context.Services.Find(id);
+            if (service == null)
+                return Task.CompletedTask;
+
+            _context.Services.Remove(service);
+            return _context.SaveChangesAsync();
+        }
+
+        public Task<List<Service>> GetAllServicesAsync()
+        {
+            return _context.Services.ToListAsync();
+        }
+
+        public async Task<Service> GetServiceAsync(int id)
+        {
+            return await _context.Services.SingleOrDefaultAsync(s => s.Id == id)
+                ?? throw new EntityNotFoundException($"Cannot find service with id: {id}.");
+        }
+
+        public Task UpdateServiceAsync(Service service)
+        {
+            _context.Services.Update(service);
+            return _context.SaveChangesAsync();
+        }
+    }
+}