From a35ca6f40de73e93372ade6f2d74c231389799e2 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Mon, 20 Apr 2026 00:02:07 +0300
Subject: Fix task 25: keep comic generation single-language and single-style

---
 internal/comic/generator.go | 44 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

(limited to 'internal/comic/generator.go')

diff --git a/internal/comic/generator.go b/internal/comic/generator.go
index 34c60c5..b3be2ef 100644
--- a/internal/comic/generator.go
+++ b/internal/comic/generator.go
@@ -79,6 +79,12 @@ func (g *Generator) Generate(ctx context.Context, entries []WordEntry) (string,
 	if text == "" {
 		return "", fmt.Errorf("no story content returned")
 	}
+	if err := validateTextScript("story text", text, g.script); err != nil {
+		return "", err
+	}
+	if err := validateNoPromptLeakage("story text", text); err != nil {
+		return "", err
+	}
 	return text, nil
 }
 
@@ -101,7 +107,11 @@ func (g *Generator) GenerateFull(ctx context.Context, entries []WordEntry) (Gene
 	if text == "" {
 		return GenerateResult{}, fmt.Errorf("no content returned")
 	}
-	return parseGenerateResult(text), nil
+	result := parseGenerateResult(text)
+	if err := validateGeneratedResult(result, g.script); err != nil {
+		return GenerateResult{}, err
+	}
+	return result, nil
 }
 
 func (g *Generator) ready() error {
@@ -139,3 +149,35 @@ func (g *Generator) renderStoryPrompt(templateName string, entries []WordEntry)
 	}
 	return systemPrompt + "\n\n" + userPrompt, nil
 }
+
+func validateGeneratedResult(result GenerateResult, script string) error {
+	if err := validateTextScript("story text", result.StoryText, script); err != nil {
+		return err
+	}
+	if err := validateNoPromptLeakage("story text", result.StoryText); err != nil {
+		return err
+	}
+	if err := validateTextScript("character bible", result.Bible, script); err != nil {
+		return err
+	}
+	if err := validateNoPromptLeakage("character bible", result.Bible); err != nil {
+		return err
+	}
+	if err := validateTextScript("comic title", result.Title, script); err != nil {
+		return err
+	}
+	if err := validateNoPromptLeakage("comic title", result.Title); err != nil {
+		return err
+	}
+	for pageIdx, page := range result.PanelScript {
+		for panelIdx, panel := range page {
+			if err := validateTextScript(fmt.Sprintf("panel script P%d-%c", pageIdx+1, 'A'+panelIdx), panel, script); err != nil {
+				return err
+			}
+			if err := validateNoPromptLeakage(fmt.Sprintf("panel script P%d-%c", pageIdx+1, 'A'+panelIdx), panel); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
-- 
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