Feat/enable folder

src/Application/Folders/Commands/EnableFolder.cs

@@ -1,5 +1,9 @@
+using Application.Common.Exceptions;
+using Application.Common.Interfaces;
 using Application.Common.Models.Dtos.Physical;
+using AutoMapper;
 using MediatR;
+using Microsoft.EntityFrameworkCore;
 
 namespace Application.Folders.Commands;
 
@@ -9,4 +13,37 @@ public record Command : IRequest<FolderDto>
     {
         public Guid FolderId { get; init; }
     }
+
+    public class CommandHandler : IRequestHandler<Command, FolderDto>
+    {
+        private readonly IApplicationDbContext _context;
+        private readonly IMapper _mapper;
+
+        public CommandHandler(IApplicationDbContext context, IMapper mapper)
+        {
+            _context = context;
+            _mapper = mapper;
+        }
+
+        public async Task<FolderDto> Handle(Command request, CancellationToken cancellationToken)
+        {
+            var folder = await _context.Folders
+                .FirstOrDefaultAsync(x => x.Id.Equals(request.FolderId), cancellationToken);
+
+            if (folder is null)
+            {
+                throw new KeyNotFoundException("Folder does not exist.");
+            }
+
+            if (folder.IsAvailable)
+            {
+                throw new ConflictException("Folder has already been enabled.");
+            }
+
+            folder.IsAvailable = true;
+            var result = _context.Folders.Update(folder);
+            await _context.SaveChangesAsync(cancellationToken);
+            return _mapper.Map<FolderDto>(result.Entity);
+        }
+    }
 }

tests/Application.Tests.Integration/Folders/Commands/EnableFolderTests.cs

@@ -0,0 +1,90 @@
+using Application.Common.Exceptions;
+using Application.Folders.Commands;
+using Domain.Entities;
+using FluentAssertions;
+using Xunit;
+
+namespace Application.Tests.Integration.Folders.Commands;
+
+public class EnableFolderTests : BaseClassFixture
+{
+    public EnableFolderTests(CustomApiFactory apiFactory) : base(apiFactory)
+    {
+    }
+
+    [Fact]
+    public async Task ShouldEnableFolder_WhenThatFolderExistsAndIsDisabled()
+    {
+        // Arrange 
+        var department = CreateDepartment();
+        var folder = CreateFolder();
+        var locker = CreateLocker(folder);
+        var room = CreateRoom(department, locker);
+        folder.IsAvailable = false;
+        await AddAsync(room);
+
+        var command = new EnableFolder.Command()
+        {
+            FolderId = folder.Id,
+        };
+
+        // Act
+        var result = await SendAsync(command);
+
+        // Assert
+        result.IsAvailable.Should().BeTrue();
+
+        // Cleanup
+        Remove(folder);
+        Remove(locker);
+        Remove(room);
+        Remove(await FindAsync<Department>(department.Id));
+    }
+
+    [Fact]
+    public async Task ShouldThrowKeyNotFoundException_WhenThatFolderDoesNotExist()
+    {
+        // Arrange
+        var command = new EnableFolder.Command()
+        {
+             FolderId = Guid.NewGuid(),
+        };
+
+        // Act
+        var action = async () => await SendAsync(command);
+
+        // Assert
+        await action.Should().ThrowAsync<KeyNotFoundException>()
+            .WithMessage("Folder does not exist.");
+    }
+
+    [Fact]
+    public async Task ShouldThrowConflictException_WhenFolderIsAlreadyAvailable()
+    {
+        // Arrange
+        var department = CreateDepartment();
+        var folder = CreateFolder();
+        folder.IsAvailable = true;
+        var locker = CreateLocker(folder);
+        var room = CreateRoom(department, locker);
+        await AddAsync(room);
+
+        var command = new EnableFolder.Command()
+        {
+            FolderId = folder.Id,
+        };
+
+        // Act
+        var action = async () => await SendAsync(command);
+
+        // Assert
+        await action.Should().ThrowAsync<ConflictException>()
+            .WithMessage("Folder has already been enabled.");
+
+        // Cleanup
+        Remove(folder);
+        Remove(locker);
+        Remove(room);
+        Remove(await FindAsync<Department>(department.Id));
+    }
+}