Add application services for profiles and neutrino

RecNet.Application/Neutrino/AuthorizeNeutrinoCommand.cs

@@ -0,0 +1,5 @@
+namespace RecNet.Application.Neutrino;
+
+public sealed record AuthorizeNeutrinoCommand(
+    Guid ProfileId,
+    string AccessToken);

RecNet.Application/Neutrino/INeutrinoAuthorizationService.cs

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+namespace RecNet.Application.Neutrino;
+
+public interface INeutrinoAuthorizationService
+{
+    Task<NeutrinoAuthorizationResult> AuthorizeAsync(
+        AuthorizeNeutrinoCommand command,
+        CancellationToken ct = default);
+}

RecNet.Application/Neutrino/NeutrinoAuthorizationFailure.cs

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+namespace RecNet.Application.Neutrino;
+
+public enum NeutrinoAuthorizationFailure
+{
+    InvalidParameters,
+    AuthenticationFailed
+}

RecNet.Application/Neutrino/NeutrinoAuthorizationResult.cs

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+namespace RecNet.Application.Neutrino;
+
+public sealed record NeutrinoAuthorizationResult(
+    bool Succeeded,
+    NeutrinoAuthorizationFailure? Failure,
+    string? UserId,
+    string? Nickname)
+{
+    public static NeutrinoAuthorizationResult Success(Guid userId, string nickname)
+        => new(true, null, userId.ToString(), nickname);
+
+    public static NeutrinoAuthorizationResult InvalidParameters()
+        => new(false, NeutrinoAuthorizationFailure.InvalidParameters, null, null);
+
+    public static NeutrinoAuthorizationResult AuthenticationFailed()
+        => new(false, NeutrinoAuthorizationFailure.AuthenticationFailed, null, null);
+}

RecNet.Application/Neutrino/NeutrinoAuthorizationService.cs

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+using RecNet.Application.Common.Interfaces;
+using RecNet.Domain.Repositories;
+
+namespace RecNet.Application.Neutrino;
+
+public class NeutrinoAuthorizationService(
+    IProfileRepository profileRepository,
+    ITokenService tokenService) : INeutrinoAuthorizationService
+{
+    public async Task<NeutrinoAuthorizationResult> AuthorizeAsync(
+        AuthorizeNeutrinoCommand command,
+        CancellationToken ct = default)
+    {
+        if (command.ProfileId == Guid.Empty || string.IsNullOrWhiteSpace(command.AccessToken))
+            return NeutrinoAuthorizationResult.InvalidParameters();
+
+        var tokenVerifyResult = tokenService.VerifyToken(command.AccessToken);
+        if (!tokenVerifyResult.Succeeded || tokenVerifyResult.ProfileId is null)
+            return NeutrinoAuthorizationResult.AuthenticationFailed();
+
+        if (tokenVerifyResult.ProfileId.Value != command.ProfileId)
+            return NeutrinoAuthorizationResult.AuthenticationFailed();
+
+        var profile = await profileRepository.GetByIdAsync(command.ProfileId, ct);
+        if (profile is null)
+            return NeutrinoAuthorizationResult.AuthenticationFailed();
+
+        return NeutrinoAuthorizationResult.Success(profile.ProfileId, profile.Name);
+    }
+}