initial commit

Application/Services/KillService.cs

@@ -0,0 +1,48 @@
+using Application.Interfaces.Repositories;
+using Application.Interfaces.Services;
+using Domain.Entities;
+
+namespace Application.Services;
+
+public class KillService(IKillRepository repository, IUserService userService) : IKillService
+{
+    private IKillRepository Repository { get; } = repository;
+    
+    public IEnumerable<Kill> GetAllKills()
+    {
+        return Repository.GetAllKills();
+    }
+
+    public Kill GetKillById(int id)
+    {
+        if (!Repository.TryGetKillById(id, out var kill))
+        {
+            throw new KeyNotFoundException($"Failed to find kill with id: {id}");
+        }
+
+        return kill;
+    }
+
+    public IEnumerable<Kill> GetKillsByUserId(int userId)
+    {
+        return Repository.GetAllKills().Where(x => x.UserId == userId);
+    }
+
+    public IEnumerable<Kill> GetKillsByUserId(IEnumerable<int> userIds)
+    {
+        return Repository.GetAllKills().Where(x => userIds.Contains(x.UserId));
+    }
+
+    public bool AddKill(Kill kill)
+    {
+        Repository.AddKill(kill);
+        var user = userService.GetUserById(kill.UserId);
+        user.Kills.Append(kill);
+        return true;
+    }
+
+    public bool RemoveKill(Kill kill)
+    {
+        return Repository.RemoveKill(kill);
+    }
+}