From 4fe25005affd82db6dd8a00e84139f9f4f51b8e4 Mon Sep 17 00:00:00 2001
From: Polianin Nikita <nikitkapolyanin@yandex.ru>
Date: Thu, 25 Jan 2024 17:39:07 +0300
Subject: [PATCH] feat: add a faculty command

---
 .../CreateFaculty/CreateFacultyCommand.cs     |  9 ++++++
 .../CreateFacultyCommandHandler.cs            | 30 +++++++++++++++++++
 .../UpdateFaculty/UpdateFacultyCommand.cs     |  9 ++++++
 .../UpdateFacultyCommandHandler.cs            | 20 +++++++++++++
 4 files changed, 68 insertions(+)
 create mode 100644 Application/Cqrs/Faculty/Commands/CreateFaculty/CreateFacultyCommand.cs
 create mode 100644 Application/Cqrs/Faculty/Commands/CreateFaculty/CreateFacultyCommandHandler.cs
 create mode 100644 Application/Cqrs/Faculty/Commands/UpdateFaculty/UpdateFacultyCommand.cs
 create mode 100644 Application/Cqrs/Faculty/Commands/UpdateFaculty/UpdateFacultyCommandHandler.cs

diff --git a/Application/Cqrs/Faculty/Commands/CreateFaculty/CreateFacultyCommand.cs b/Application/Cqrs/Faculty/Commands/CreateFaculty/CreateFacultyCommand.cs
new file mode 100644
index 0000000..3f224e4
--- /dev/null
+++ b/Application/Cqrs/Faculty/Commands/CreateFaculty/CreateFacultyCommand.cs
@@ -0,0 +1,9 @@
+using MediatR;
+
+namespace Mirea.Api.DataAccess.Application.Cqrs.Faculty.Commands.CreateFaculty;
+
+public class CreateFacultyCommand : IRequest<int>
+{
+    public required string Name { get; set; }
+    public int? CampusId { get; set; }
+}
\ No newline at end of file
diff --git a/Application/Cqrs/Faculty/Commands/CreateFaculty/CreateFacultyCommandHandler.cs b/Application/Cqrs/Faculty/Commands/CreateFaculty/CreateFacultyCommandHandler.cs
new file mode 100644
index 0000000..07605fe
--- /dev/null
+++ b/Application/Cqrs/Faculty/Commands/CreateFaculty/CreateFacultyCommandHandler.cs
@@ -0,0 +1,30 @@
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using Mirea.Api.DataAccess.Application.Common.Exceptions;
+using Mirea.Api.DataAccess.Application.Interfaces.DbContexts.Schedule;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Mirea.Api.DataAccess.Application.Cqrs.Faculty.Commands.CreateFaculty;
+
+public class CreateFacultyCommandHandler(IFacultyDbContext dbContext) : IRequestHandler<CreateFacultyCommand, int>
+{
+    public async Task<int> Handle(CreateFacultyCommand request, CancellationToken cancellationToken)
+    {
+        var entity = await dbContext.Faculties.FirstOrDefaultAsync(f => f.Name == request.Name, cancellationToken: cancellationToken);
+
+        if (entity != null)
+            throw new RecordExistException(typeof(Domain.Schedule.Faculty), nameof(Domain.Schedule.Faculty.Name), entity.Id);
+
+        var faculty = new Domain.Schedule.Faculty()
+        {
+            Name = request.Name,
+            CampusId = request.CampusId
+        };
+
+        var result = await dbContext.Faculties.AddAsync(faculty, cancellationToken);
+        await dbContext.SaveChangesAsync(cancellationToken);
+
+        return result.Entity.Id;
+    }
+}
\ No newline at end of file
diff --git a/Application/Cqrs/Faculty/Commands/UpdateFaculty/UpdateFacultyCommand.cs b/Application/Cqrs/Faculty/Commands/UpdateFaculty/UpdateFacultyCommand.cs
new file mode 100644
index 0000000..1417317
--- /dev/null
+++ b/Application/Cqrs/Faculty/Commands/UpdateFaculty/UpdateFacultyCommand.cs
@@ -0,0 +1,9 @@
+using MediatR;
+
+namespace Mirea.Api.DataAccess.Application.Cqrs.Faculty.Commands.UpdateFaculty;
+
+public class UpdateFacultyCommand : IRequest
+{
+    public required int Id { get; set; }
+    public required int CampusId { get; set; }
+}
\ No newline at end of file
diff --git a/Application/Cqrs/Faculty/Commands/UpdateFaculty/UpdateFacultyCommandHandler.cs b/Application/Cqrs/Faculty/Commands/UpdateFaculty/UpdateFacultyCommandHandler.cs
new file mode 100644
index 0000000..56e13cb
--- /dev/null
+++ b/Application/Cqrs/Faculty/Commands/UpdateFaculty/UpdateFacultyCommandHandler.cs
@@ -0,0 +1,20 @@
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+using Mirea.Api.DataAccess.Application.Common.Exceptions;
+using Mirea.Api.DataAccess.Application.Interfaces.DbContexts.Schedule;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Mirea.Api.DataAccess.Application.Cqrs.Faculty.Commands.UpdateFaculty;
+
+public class UpdateFacultyCommandHandler(IFacultyDbContext dbContext) : IRequestHandler<UpdateFacultyCommand>
+{
+    public async Task Handle(UpdateFacultyCommand request, CancellationToken cancellationToken)
+    {
+        var entity = await dbContext.Faculties.FirstOrDefaultAsync(f => f.Id == request.Id, cancellationToken: cancellationToken) ?? throw new NotFoundException(typeof(Domain.Schedule.Faculty), nameof(Domain.Schedule.Faculty.Id), request.Id);
+
+        entity.CampusId = request.CampusId;
+
+        await dbContext.SaveChangesAsync(cancellationToken);
+    }
+}
\ No newline at end of file