backend phase 14 & frontend phase 7

server/src/Infrastructure/Baya.Infrastructure.CrossCutting/Seams/MockReviewModerationService.cs

@@ -0,0 +1,31 @@
+#nullable enable
+using Baya.Application.Contracts.Reviews;
+using Microsoft.Extensions.Options;
+
+namespace Baya.Infrastructure.CrossCutting.Seams;
+
+/// <summary>
+/// Deterministic mock <see cref="IReviewModerationService"/> (b14) — a keyword filter / pass-through with no
+/// external call. A banned-word hit → <see cref="ModerationDecision.Reject"/>; otherwise clean text → a
+/// human-review <see cref="ModerationDecision.Flag"/> by default (so the publish gate holds), or
+/// <see cref="ModerationDecision.Approve"/> when <see cref="ReviewModerationOptions.AutoApproveClean"/> is set.
+/// The real text classifier / LLM endpoint swaps in by a registration change only — the moderation command
+/// keeps decision authority and the human override, so it never touches the handler.
+/// </summary>
+public sealed class MockReviewModerationService(IOptions<SeamOptions> options) : IReviewModerationService
+{
+    private readonly ReviewModerationOptions _options = options.Value.ReviewModeration;
+
+    public ValueTask<ModerationVerdict> ScreenAsync(string? reviewText, CancellationToken cancellationToken = default)
+    {
+        var text = reviewText?.Trim() ?? string.Empty;
+
+        var hit = _options.BannedWords.FirstOrDefault(
+            w => !string.IsNullOrWhiteSpace(w) && text.Contains(w, StringComparison.OrdinalIgnoreCase));
+        if (hit is not null)
+            return ValueTask.FromResult(new ModerationVerdict(ModerationDecision.Reject, $"banned_word:{hit}"));
+
+        var decision = _options.AutoApproveClean ? ModerationDecision.Approve : ModerationDecision.Flag;
+        return ValueTask.FromResult(new ModerationVerdict(decision, "clean"));
+    }
+}