refactor: Clean up and optimize comment generation logic in Gemini AI Service

app/routes/commend/gemini_service.py

@@ -1,7 +1,4 @@
-"""
-Gemini AI Service for Crown Commend
-Token-optimized YouTube comment generation.
-"""
+"""Gemini AI Service for Crown Commend - Token optimized."""
 
 from __future__ import annotations
 
@@ -37,31 +34,7 @@ def _get_client():
         raise ValueError(f"Gemini failed: {e}")
 
 
-def summarize_transcript(transcript_text: str, language: str) -> Tuple[Optional[str], Optional[str]]:
-    """Transcript özeti - max 2000 karakter input."""
-    try:
-        client = _get_client()
-
-        if not transcript_text or len(transcript_text.strip()) < 50:
-            return None, "No transcript"
-
-        # Token tasarrufu: max 2000 karakter al
-        text = transcript_text[:2000]
-
-        prompt = f"Summarize in {language}, 1-2 sentences only:\n{text}"
-
-        response = client.models.generate_content(
-            model="gemini-2.0-flash",
-            contents=prompt
-        )
-        return response.text.strip()[:500], None
-
-    except Exception as e:
-        logger.error(f"Summary error: {e}")
-        return None, "Summary failed"
-
-
-# Disclaimer mapping - sabit, prompt'a dahil etmiyoruz
+# Disclaimer mapping
 DISCLAIMERS = {
     'Turkish': '\n\nNot: Bu yorum AI tarafından üretilmiştir.',
     'English': '\n\nNote: This comment was generated by AI.',
@@ -70,7 +43,7 @@ DISCLAIMERS = {
     'Japanese': '\n\n注：このコメントはAIによって生成されました。'
 }
 
-# Style mapping - kısa açıklamalar
+# Style mapping
 STYLES = {
     'supportive': 'positive, encouraging',
     'analytical': 'thoughtful, detailed',
@@ -87,49 +60,39 @@ def generate_comment(
     existing_comments: Optional[List[Dict[str, str]]] = None,
     transcript_summary: Optional[str] = None
 ) -> Tuple[Optional[str], Optional[str]]:
-    """
-    Token-optimized comment generation.
-    ~300-400 tokens input hedefi.
-    """
+    """Generate YouTube comment with minimal tokens."""
     try:
         client = _get_client()
 
-        # Kısa video bilgisi
+        # Compact video info
         title = video_details.get('title', '')[:80]
         channel = video_details.get('channelName', '')[:30]
-        desc = video_details.get('description', '')[:150]
-        views = video_details.get('viewCount', 0)
+        desc = video_details.get('description', '')[:100]
 
-        # Sadece en iyi 2 yorum, kısa
+        # Top 2 comments only
         comments_text = ""
-        if existing_comments and len(existing_comments) > 0:
-            top_comments = existing_comments[:2]
-            comments_text = " | ".join([c['text'][:80] for c in top_comments])
+        if existing_comments:
+            top = existing_comments[:2]
+            comments_text = " | ".join([c['text'][:60] for c in top])
 
-        # Özet varsa ekle (kısa)
-        summary_text = ""
+        # Short transcript
+        summary = ""
         if transcript_summary:
-            summary_text = f"Content: {transcript_summary[:200]}"
+            summary = f"Content: {transcript_summary[:150]}"
 
-        # Stil açıklaması
         style_desc = STYLES.get(comment_style, 'natural')
 
-        # Kompakt prompt (~300 token)
-        prompt = f"""Write a YouTube comment in {language}.
+        # Minimal prompt (~200 tokens)
+        prompt = f"""Write YouTube comment in {language}.
 
 Video: {title}
 Channel: {channel}
 {f'Desc: {desc}' if desc else ''}
-{f'Views: {views:,}' if views else ''}
-{f'Comments: {comments_text}' if comments_text else ''}
-{summary_text}
+{f'Top comments: {comments_text}' if comments_text else ''}
+{summary}
 
 Style: {style_desc}
-Rules:
-- 1-2 sentences max
-- Sound natural, like a real viewer
-- No emojis or minimal (max 1)
-- Be specific to video content
+Rules: 1-2 sentences, natural, specific to video, max 1 emoji.
 
 Comment:"""
 
@@ -140,23 +103,21 @@ Comment:"""
 
         generated = response.text.strip()
 
-        # Tırnak temizle
+        # Clean quotes
         if generated.startswith('"') and generated.endswith('"'):
             generated = generated[1:-1]
 
-        # Disclaimer ekle
+        # Add disclaimer
         disclaimer = DISCLAIMERS.get(language, DISCLAIMERS['English'])
-        final_comment = generated + disclaimer
-
-        return final_comment, None
+        return generated + disclaimer, None
 
     except Exception as e:
         logger.error(f"Generate error: {e}")
-        error_str = str(e).lower()
+        err = str(e).lower()
 
-        if "api key" in error_str:
+        if "api key" in err:
             return None, "Invalid API key"
-        elif "quota" in error_str or "limit" in error_str or "resource" in error_str:
+        elif "quota" in err or "limit" in err or "resource" in err:
             return None, "API quota exceeded"
         else:
             return None, f"Generation failed: {str(e)}"