main

src/modules/gemini/gemini.service.ts

@@ -256,6 +256,7 @@ IMPORTANT: Only output valid JSON, no markdown code blocks or other text.`;
   async generateImage(
     prompt: string,
     aspectRatio: '16:9' | '9:16' | '1:1' = '16:9',
+    isIllustration: boolean = false,
   ): Promise<{ buffer: Buffer; mimeType: string } | null> {
     if (!this.isAvailable()) {
       throw new Error('Gemini AI is not available. Check your configuration.');
@@ -272,7 +273,10 @@ IMPORTANT: Only output valid JSON, no markdown code blocks or other text.`;
 
       // En-boy oranına göre yönlendirmeyi zorla
       const orientation = aspectRatio === '9:16' ? '(VERTICAL / PORTRAIT)' : aspectRatio === '16:9' ? '(HORIZONTAL / LANDSCAPE)' : '(SQUARE)';
-      const enhancedPrompt = `Generate a high-quality, photorealistic image. Description: ${prompt}. Aspect ratio and framing: EXACTLY ${aspectRatio} ${orientation}. Style: cinematic lighting, detailed, professional. IMPORTANT: Return the generated image only, no text.`;
+      // Gemini modelleri talimat kelimelerinden ("Generate an image of...") ziyade doğrudan görsel açıklamalarını daha iyi anlıyor.
+      const enhancedPrompt = isIllustration
+        ? `Premium digital illustration, highly detailed, NOT photorealistic. ${prompt}. Aspect ratio: ${aspectRatio} ${orientation}`
+        : `High-quality photorealistic cinematic image, professional lighting, detailed. ${prompt}. Aspect ratio: ${aspectRatio} ${orientation}`;
 
       // ── Katman 1: gemini-2.5-flash-image (Nano Banana) — 2 deneme ──
       for (let attempt = 1; attempt <= 2; attempt++) {