feat(blog-lab): 마케터 단계 — 전환율 강화 + 링크 삽입

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

blog-lab/app/marketer.py

@@ -0,0 +1,102 @@
+"""마케터 단계 — 전환율 강화 + 브랜드커넥트 링크 삽입."""
+
+import json
+import logging
+from typing import Any, Dict, List, Optional
+
+import anthropic
+
+from .config import ANTHROPIC_API_KEY, CLAUDE_MODEL
+from .db import get_template
+
+logger = logging.getLogger(__name__)
+
+_client: Optional[anthropic.Anthropic] = None
+
+
+def _get_client() -> anthropic.Anthropic:
+    global _client
+    if _client is None:
+        _client = anthropic.Anthropic(api_key=ANTHROPIC_API_KEY)
+    return _client
+
+
+def _call_claude(prompt: str, max_tokens: int = 8192) -> str:
+    client = _get_client()
+    resp = client.messages.create(
+        model=CLAUDE_MODEL,
+        max_tokens=max_tokens,
+        messages=[{"role": "user", "content": prompt}],
+    )
+    return resp.content[0].text
+
+
+def enhance_for_conversion(
+    post_body: str,
+    post_title: str,
+    brand_links: List[Dict[str, Any]],
+    keyword: str,
+) -> Dict[str, str]:
+    """초안에 제휴 링크를 자연스럽게 삽입하고 전환율을 강화.
+
+    Args:
+        post_body: 작가 초안 HTML 본문
+        post_title: 작가 초안 제목
+        brand_links: 브랜드커넥트 링크 리스트
+        keyword: 타겟 키워드
+
+    Returns:
+        {"title": str, "body": str, "excerpt": str}
+
+    Raises:
+        ValueError: 브랜드 링크가 없을 때
+    """
+    if not brand_links:
+        raise ValueError("브랜드커넥트 링크가 필요합니다")
+
+    template = get_template("marketer_enhance")
+    if not template:
+        raise RuntimeError("marketer_enhance 템플릿이 없습니다")
+
+    brand_links_text = ""
+    for i, link in enumerate(brand_links, 1):
+        brand_links_text += (
+            f"{i}. 상품명: {link.get('product_name', '')}\n"
+            f"   설명: {link.get('description', '')}\n"
+            f"   URL: {link.get('url', '')}\n"
+            f"   배치 힌트: {link.get('placement_hint', '자연스럽게')}\n\n"
+        )
+
+    prompt = template.format(
+        draft_body=post_body[:6000],
+        keyword=keyword,
+        brand_links_info=brand_links_text,
+    )
+
+    prompt += (
+        "\n\n---\n"
+        "응답은 반드시 아래 JSON 형식으로 해주세요 (JSON만 출력):\n"
+        '{"title": "개선된 제목", "body": "개선된 HTML 본문", "excerpt": "2줄 요약"}'
+    )
+
+    raw = _call_claude(prompt)
+
+    try:
+        text = raw.strip()
+        if text.startswith("```"):
+            lines = text.split("\n")
+            lines = [l for l in lines if not l.strip().startswith("```")]
+            text = "\n".join(lines)
+        result = json.loads(text)
+        return {
+            "title": result.get("title", post_title),
+            "body": result.get("body", post_body),
+            "excerpt": result.get("excerpt", ""),
+        }
+    except (json.JSONDecodeError, KeyError):
+        logger.warning("Marketer JSON parse failed, using raw text")
+        return {
+            "title": post_title,
+            "body": raw,
+            "excerpt": raw[:200],
+        }