finalizare 1.0

backend/Application/Endpoints/Authorization/RefreshToken/RefreshTokenCommand.cs

@@ -0,0 +1,6 @@
+namespace Application.Endpoints.Authorization.RefreshToken;
+
+public class RefreshJwtCommand
+{
+    public string Token { get; set; } = string.Empty;
+}

backend/Application/Endpoints/Authorization/RefreshToken/RefreshTokenHandler.cs

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+using Application.Services.Jwt;
+
+namespace Application.Endpoints.Authorization.RefreshToken;
+
+public class RefreshJwtHandler(IJwtService jwtService)
+{
+    public async Task<BaseResponse> Handle(RefreshJwtCommand command, CancellationToken cancellationToken)
+    {
+        var validator = new RefreshJwtValidator(jwtService);
+        var validationResult = await validator.ValidateAsync(command, cancellationToken);
+
+        if (!validationResult.IsValid)
+        {
+            var firstError = validationResult.Errors.FirstOrDefault();
+            return new BaseResponse
+            {
+                StatusCode = HttpStatusCodes.Unauthorized,
+                Message = firstError?.ErrorMessage
+            };
+        }
+
+        var newToken = jwtService.RefreshToken(command.Token);
+        return new BaseResponse
+        {
+            StatusCode = HttpStatusCodes.OK,
+            Message = "Token refreshed successfully.",
+            Data = newToken
+        };
+    }
+}

backend/Application/Endpoints/Authorization/RefreshToken/RefreshTokenValidator.cs

@@ -0,0 +1,23 @@
+using Application.Services.Jwt;
+using FluentValidation;
+
+namespace Application.Endpoints.Authorization.RefreshToken;
+
+public class RefreshJwtValidator : AbstractValidator<RefreshJwtCommand>
+{
+    private readonly IJwtService _jwtService;
+
+    public RefreshJwtValidator(IJwtService jwtService)
+    {
+        _jwtService = jwtService;
+
+        RuleFor(x => x.Token)
+            .NotEmpty().WithMessage("Token is required.")
+            .Must(BeAValidToken).WithMessage("Token is invalid or expired.");
+    }
+
+    private bool BeAValidToken(string token)
+    {
+        return _jwtService.ValidateJwtToken(token);
+    }
+}