finalizare 1.0

backend/Application/Endpoints/Authorization/UserLogin/UserLoginHandler.cs

@@ -0,0 +1,79 @@
+using Application.Services.Database.PostgreSQL;
+using Application.Services.HashingAlgorithms;
+using Application.Services.Jwt;
+using Domain;
+
+namespace Application.Endpoints.Authorization.UserLogin;
+
+public class UserLoginHandler(
+    IJwtService jwtService,
+    IHashingAlgorithms hashingAlgorithms,
+    IDoctorRepository doctorRepository,
+    IPatientRepository patientRepository,
+    IAdminRepository adminRepository)
+{
+    public async Task<BaseResponse> Handle(UserLoginCommand request, CancellationToken token)
+    {
+        var validator = new UserLoginValidator();
+        var result = await validator.ValidateAsync(request, token);
+        if (!result.IsValid)
+        {
+            var firstError = result.Errors.FirstOrDefault();
+            var errorCode = int.TryParse(firstError.ErrorCode, out var code) ? code : -1;
+            var errorMessage = firstError.ErrorMessage;
+
+            return new BaseResponse
+            {
+                StatusCode = errorCode,
+                Message = errorMessage,
+                Data = null
+            };
+        }
+
+        var email = request.Email;
+        var password = hashingAlgorithms.Sha256Algorithm(request.Password);
+
+        if (await doctorRepository.CredentialsMatch(email, password, token))
+        {
+            var doctor = await doctorRepository.FindByEmailAsync(email, token);
+            var authToken = jwtService.GenerateJwtToken(doctor.Id, UserRoles.Doctor, doctor.Name);
+            return new BaseResponse
+            {
+                StatusCode = HttpStatusCodes.OK,
+                Message = "Doctor logged in successfully.",
+                Data = authToken
+            };
+        }
+
+        if (await patientRepository.CredentialsMatch(email, password, token))
+        {
+            var patient = await patientRepository.FindByEmailAsync(email, token);
+            var authToken = jwtService.GenerateJwtToken(patient.Id, UserRoles.Patient, patient.Name);
+            return new BaseResponse
+            {
+                StatusCode = HttpStatusCodes.OK,
+                Message = "Patient logged in successfully.",
+                Data = authToken
+            };
+        }
+
+        if (await adminRepository.CredentialsMatch(email, password, token))
+        {
+            var admin = await adminRepository.FindByEmailAsync(email, token);
+            var authToken = jwtService.GenerateJwtToken(admin.Id, UserRoles.Admin, admin.Name);
+            return new BaseResponse
+            {
+                StatusCode = HttpStatusCodes.OK,
+                Message = "Admin logged in successfully.",
+                Data = authToken
+            };
+        }
+
+        return new BaseResponse
+        {
+            StatusCode = HttpStatusCodes.NotFound,
+            Message = "User not registered in our system.",
+            Data = null
+        };
+    }
+}