add: сервис групп расходов

back/Services/Domain/SpendingGroupService.cs

@@ -0,0 +1,63 @@
+using Contracts.DTO;
+using Contracts.Mappers;
+using Contracts.Repositories;
+using Contracts.SearchModels;
+using Contracts.ViewModels;
+using Services.Support.Exceptions;
+
+namespace Contracts.Services;
+
+public class SpendingGroupService : ISpendingGroupService
+{
+    private readonly ISpendingGroupRepo _spendingGroupRepo;
+
+    public SpendingGroupService(ISpendingGroupRepo spendingGroupRepo)
+    {
+        _spendingGroupRepo = spendingGroupRepo;
+    }
+
+    public async Task<SpendingGroupViewModel> Create(SpendingGroupDto model)
+    {
+        var group = await _spendingGroupRepo.Create(model);
+        return group.ToView();
+    }
+
+    public async Task<SpendingGroupViewModel> Delete(SpendingGroupSearch search)
+    {
+        var group = await _spendingGroupRepo.Delete(search);
+        if (group == null)
+        {
+            throw new EntityNotFoundException("При удалении не получилось найти группу");
+        }
+
+        return group.ToView();
+    }
+
+    public async Task<SpendingGroupViewModel> GetDetails(SpendingGroupSearch search)
+    {
+        var group = await _spendingGroupRepo.Get(search);
+        if (group == null)
+        {
+            throw new EntityNotFoundException("Не удалось найти группу по таким параметрам");
+        }
+
+        return group.ToView();
+    }
+
+    public async Task<IEnumerable<SpendingGroupViewModel>> GetList(SpendingGroupSearch search)
+    {
+        var groups = await _spendingGroupRepo.GetList(search);
+        return groups.Select(x => x.ToView());
+    }
+
+    public async Task<SpendingGroupViewModel> Update(SpendingGroupDto model)
+    {
+        var group = await _spendingGroupRepo.Update(model);
+        if (group == null)
+        {
+            throw new EntityNotFoundException("При обновлении не получилось найти группу");
+        }
+        
+        return group.ToView();
+    }
+}

back/Services/Support/Exceptions/EntityNotFoundException.cs

@@ -0,0 +1,10 @@
+namespace Services.Support.Exceptions;
+
+public class EntityNotFoundException : Exception
+{
+    public EntityNotFoundException(string message) 
+        : base(message) { }
+    public EntityNotFoundException(string message, Exception innerException) 
+        : base(message, innerException) { }
+    
+}

back/Services/Support/Exceptions/UserNotFoundException.cs

@@ -2,10 +2,11 @@ using Contracts.SearchModels;
 
 namespace Services.Support.Exceptions;
 
-public class UserNotFoundException : Exception
+public class UserNotFoundException : EntityNotFoundException
 {
     public UserNotFoundException(string message) 
         : base(message) { }
     public UserNotFoundException(string message, Exception innerException) 
         : base(message, innerException) { }
+    
 }