Finished MediaAttachments

the functionality and tests are completed

Govor.API.Tests/IntegrationTests/EF/Repositories/MediaAttachmentsTests.cs

@@ -100,4 +100,149 @@ public class MediaAttachmentsTests
         // Act & Assert 
         Assert.ThrowsAsync<NotFoundByKeyException<Guid>>(async () => await attachmentsRepository.GetAllByMessageId(_fixture.Create<Guid>()));
     }
+    
+    [Test]
+    public async Task Given_ValidAttachmentsId_When_FindByIdAsync_Then_Returns_Attachment()
+    {
+        // Arrange 
+        var attachment = _fixture.Create<MediaAttachments>();
+        
+        await using var context = new GovorDbContext(_options);
+        var attachmentsRepository = new MediaAttachmentsRepository(context, _validator);
+
+        context.MediaAttachments.Add(attachment);
+        await context.SaveChangesAsync();
+        
+        // Act 
+        var result = await attachmentsRepository.FindByIdAsync(attachment.Id);
+        
+        // Assert 
+        Assert.That(result, Is.Not.Null);
+        Assert.That(result, Is.EqualTo(attachment));
+    }
+    
+    [Test]
+    public async Task Given_InvalidAttachmentsId_When_FindByIdAsync_Should_Throw_NotFoundByKeyException()
+    {
+        // Arrange
+        await using var context = new GovorDbContext(_options);
+        var attachmentsRepository = new MediaAttachmentsRepository(context, _validator);
+        
+        // Act & Assert 
+        Assert.ThrowsAsync<NotFoundByKeyException<Guid>>(async () => await attachmentsRepository.FindByIdAsync(_fixture.Create<Guid>()));
+    }
+    
+    
+    [Test]
+    public async Task Given_ValidAttachments_When_AddAsync_Then_AttachmentsAdded()
+    {
+        // Arrange
+        var attachments = _fixture.Create<MediaAttachments>();
+        
+        await using var context = new GovorDbContext(_options);
+        var messagesRepository = new MediaAttachmentsRepository(context, _validator);
+    
+        // Act 
+        await messagesRepository.AddAsync(attachments);
+        
+        // Assert 
+        Assert.That(context.MediaAttachments.Count, Is.EqualTo(1));
+        Assert.That(context.MediaAttachments.First(), Is.EqualTo(attachments));
+    }
+    
+    [Test]
+    public async Task Given_InvalidAttachments_When_AddAsync_Should_Throw_AdditionException()
+    {
+        // Arrange
+        await using var context = new GovorDbContext(_options);
+        var repository = new MediaAttachmentsRepository(context, _validator);
+        
+        // Act & Assert 
+        Assert.ThrowsAsync<AdditionException>(async () => await repository.AddAsync(default));
+    }
+    
+    [Test]
+    public async Task Given_ExistAttachment_When_Exist_Then_ReturnTrue()
+    {
+        // Arrange
+        var attachments = _fixture.Create<MediaAttachments>();
+        
+        await using var context = new GovorDbContext(_options);
+        var repository = new MediaAttachmentsRepository(context, _validator);
+        
+        context.MediaAttachments.Add(attachments);
+        await context.SaveChangesAsync();
+        
+        // Act 
+        var result = repository.Exist(attachments);
+        var result2 = repository.Exist(attachments.Id);
+        
+        // Assert 
+        Assert.That(result, Is.True);
+        Assert.That(result2, Is.True);
+    }
+
+    [Test]
+    public async Task Given_NotExistMessage_When_Exist_Then_ReturnFalse()
+    {
+        // Arrange
+        var attachments = _fixture.Create<MediaAttachments>();
+        
+        await using var context = new GovorDbContext(_options);
+        var repository = new MediaAttachmentsRepository(context, _validator);
+
+        
+        // Act 
+        var result = repository.Exist(attachments);
+        var result2 = repository.Exist(attachments.Id);
+        
+        // Assert 
+        Assert.That(result, Is.False);
+        Assert.That(result2, Is.False);
+    }
+    
+    [Test]
+    public async Task Given_NotEqualMessage_When_Exist_Then_ReturnFalse()
+    {
+        // Arrange
+        var attachments = _fixture.Create<MediaAttachments>();
+        var attachments2 = _fixture.Create<MediaAttachments>();
+        attachments2.Id = attachments.Id;
+        
+        await using var context = new GovorDbContext(_options);
+        var repository = new MediaAttachmentsRepository(context, _validator);
+        
+        context.MediaAttachments.Add(attachments);
+        await context.SaveChangesAsync();
+        
+        // Act 
+        var result = repository.Exist(attachments2);
+        
+        // Assert 
+        Assert.That(result, Is.False);
+    }
+
+    [Test]
+    public async Task Given_InvalidMessage_When_Exist_Should_Throw_InvalidObjectException()
+    {
+        // Arrange 
+        var attachments = _fixture.Create<MediaAttachments>();
+        attachments.MessageId = Guid.Empty;
+        
+        await using var context = new GovorDbContext(_options);
+        var repository = new MediaAttachmentsRepository(context, _validator);
+        
+        // Act & Assert 
+        Assert.Throws<InvalidObjectException<MediaAttachments>>(() => repository.Exist(attachments));
+    }
+
+    [Test]
+    public void Given_NullMessage_When_Exist_Should_Throw_InvalidObjectException()
+    {
+        using var context = new GovorDbContext(_options);
+        var repository = new MediaAttachmentsRepository(context, _validator);
+        
+        // Act & Assert 
+        Assert.Throws<InvalidObjectException<MediaAttachments>>(() => repository.Exist(default(MediaAttachments)));
+    }
 }

Govor.API.Tests/IntegrationTests/EF/Repositories/MessagesRepositoryTests.cs

@@ -292,7 +292,7 @@ public class MessagesRepositoryTests
         var messagesRepository = new MessagesRepository(context, _messageValidator);
     
         // Act 
-        messagesRepository.AddAsync(message);
+        await messagesRepository.AddAsync(message);
         
         // Assert 
         Assert.That(context.Messages.Count, Is.EqualTo(1));

Govor.Core/Repositories/MediasAttachments/IMediaAttachmentsExist.cs

@@ -4,6 +4,6 @@ namespace Govor.Core.Repositories.MediasAttachments;
 
 public interface IMediaAttachmentsExist
 {
-    bool Exists(Guid id);
-    bool Exists(MediaAttachments attachments);
+    bool Exist(Guid id);
+    bool Exist(MediaAttachments attachments);
 }

Govor.Core/Repositories/MediasAttachments/IMediaAttachmentsReader.cs

@@ -5,5 +5,6 @@ namespace Govor.Core.Repositories.MediasAttachments;
 public interface IMediaAttachmentsReader
 {
     Task<List<MediaAttachments>> GetAllAsync();
+    Task<MediaAttachments> FindByIdAsync(Guid id);
     Task<List<MediaAttachments>> GetAllByMessageId(Guid messageId);
 }

Govor.Core/Repositories/MediasAttachments/IMediaAttachmentsWriter.cs

@@ -5,6 +5,6 @@ namespace Govor.Core.Repositories.MediasAttachments;
 public interface IMediaAttachmentsWriter
 {
     Task AddAsync(MediaAttachments mediaAttachments);
-    Task UpdateAsync(MediaAttachments mediaAttachments);
+    Task UpdateAsync(MediaAttachments attachments);
     Task RemoveAsync(Guid Id);
 }

Govor.Data/Repositories/MediaAttachmentsRepository.cs

@@ -35,28 +35,98 @@ public class MediaAttachmentsRepository : IMediaAttachmentsRepository
             .ToListOrThrowIfEmpty(new NotFoundByKeyException<Guid>(messageId, "No media attachments found by given message Id"));
     }
 
-    public Task AddAsync(MediaAttachments mediaAttachments)
+    public async Task<MediaAttachments> FindByIdAsync(Guid id)
     {
-        throw new NotImplementedException();
+        return await _context.MediaAttachments
+            .AsNoTracking()
+            .Include(ma => ma.Message)
+            .FirstOrDefaultAsync(m => m.Id == id)
+            ?? throw new NotFoundByKeyException<Guid>(id, "No media attachments found by given Id");
     }
     
-    public Task UpdateAsync(MediaAttachments mediaAttachments)
+    public async Task AddAsync(MediaAttachments mediaAttachments)
     {
-        throw new NotImplementedException();
+        try
+        {
+            _validator.Validate(mediaAttachments);
+
+            _context.MediaAttachments.Add(mediaAttachments);
+            await _context.SaveChangesAsync();
+        }
+        catch (InvalidObjectException<Message> ex)
+        {
+            throw new AdditionException("Attachments with given data invalid", ex);
+        }
+        catch (Exception ex)
+        {
+            throw new AdditionException("Cannot add Attachments", ex);
+        }
     }
 
-    public Task RemoveAsync(Guid Id)
+    public async Task UpdateAsync(MediaAttachments attachments)
     {
-        throw new NotImplementedException();
+        try
+        {
+            _validator.Validate(attachments);
+
+            var rowsAffected = await _context.MediaAttachments
+                .Where(m => m.Id == attachments.Id)
+                .ExecuteUpdateAsync(u => u
+                    .SetProperty(m => m.MessageId, attachments.MessageId)
+                    .SetProperty(m => m.Message, attachments.Message)
+                    .SetProperty(m => m.FilePath, attachments.FilePath)
+                    .SetProperty(m => m.MimeType, attachments.MimeType)
+                    .SetProperty(m => m.EncryptedKey, attachments.EncryptedKey)
+                );
+
+            if (rowsAffected == 0)
+                throw new NotFoundByKeyException<Guid>(attachments.Id);
+        }
+        catch (NotFoundByKeyException<Guid> ex)
+        {
+            throw new UpdateException($"Not found attachments by given id {attachments.Id}", ex);
+        }
+        catch (Exception ex)
+        {
+            throw new UpdateException($"Error when updating the attachments {attachments.Id}", ex);
+        }
     }
 
-    public bool Exists(Guid id)
+    public async Task RemoveAsync(Guid Id)
     {
-        throw new NotImplementedException();
+        try
+        {
+            var result = await FindByIdAsync(Id);
+
+            _context.MediaAttachments.Remove(result);
+            await _context.SaveChangesAsync();
+        }
+        catch (NotFoundByKeyException<Guid> ex)
+        {
+            throw new RemoveException($"Not found attachments by given id {Id}", ex);
+        }
+        catch (Exception ex)
+        {
+            throw new RemoveException("Error when removing the attachments", ex);
+        }
     }
 
-    public bool Exists(MediaAttachments attachments)
+    public bool Exist(Guid id)
     {
-        throw new NotImplementedException();
+        return _context.MediaAttachments.Any(e => e.Id == id);
+    }
+
+    public bool Exist(MediaAttachments attachments)
+    {
+        _validator.Validate(attachments);
+        
+        return _context.MediaAttachments.Any(
+            e => e.Id == attachments.Id &&
+            e.EncryptedKey == attachments.EncryptedKey &&
+            e.MimeType == attachments.MimeType &&
+            e.FilePath == attachments.FilePath && 
+            e.MessageId == attachments.MessageId &&
+            e.Type == attachments.Type
+            );
     }
 }