finalizare 1.0

backend/Application/Endpoints/Chats/SendMessage/SendMessageValidator.cs

@@ -0,0 +1,40 @@
+using Application.Services.Database.PostgreSQL;
+using FluentValidation;
+
+namespace Application.Endpoints.Chats.SendMessage;
+
+public class SendMessageValidator : AbstractValidator<SendMessageCommand>
+{
+    private readonly IDoctorRepository _doctorRepository;
+    private readonly IPatientRepository _patientRepository;
+
+    public SendMessageValidator(IDoctorRepository doctorRepository, IPatientRepository patientRepository)
+    {
+        RuleFor(x => x.Sender)
+            .NotEmpty().WithMessage("Sender Id is required.").WithErrorCode(HttpStatusCodes.BadRequest.ToString());
+
+        RuleFor(x => x.Receiver)
+            .NotEmpty().WithMessage("Receiver Id is required.").WithErrorCode(HttpStatusCodes.BadRequest.ToString());
+
+        RuleFor(x => x.Message)
+            .NotEmpty().WithMessage("Message is required.").WithErrorCode(HttpStatusCodes.BadRequest.ToString());
+
+        RuleFor(x => x)
+            .MustAsync(CheckForUsersExistence).WithMessage("One of the users is not existing.")
+            .WithErrorCode(HttpStatusCodes.BadRequest.ToString());
+
+        _patientRepository = patientRepository;
+        _doctorRepository = doctorRepository;
+    }
+
+    private async Task<bool> CheckForUsersExistence(SendMessageCommand request, CancellationToken token)
+    {
+        var firstCheck = await _patientRepository.GetByIdAsync(request.Sender, token) != null &&
+                         await _doctorRepository.GetByIdAsync(request.Receiver, token) != null;
+
+        var secondCheck = await _patientRepository.GetByIdAsync(request.Receiver, token) != null &&
+                          await _doctorRepository.GetByIdAsync(request.Sender, token) != null;
+
+        return firstCheck || secondCheck;
+    }
+}