# ============================================================
# File: scraper/services/scrape_engine.py
# Purpose:
#   Provide unified scraping methods for INIT-flow.
#   Reuses BookScraper internally with ZERO duplication.
# ============================================================

from scraper.book_scraper import BookScraper


class ScrapeEngine:
    """
    Adapter layer around BookScraper.
    Allows INIT-flow to fetch ONLY metadata (no chapters).
    """

    @staticmethod
    def fetch_metadata_only(site, url: str) -> dict:
        """
        Execute BookScraper but return ONLY metadata.
        Chapters are intentionally removed.
        """
        scraper = BookScraper(site, url)
        result = scraper.execute()  # returns full metadata + chapters

        # Strip chapterlist — INIT-flow should not fetch them
        return {
            "title": result.get("title"),
            "author": result.get("author"),
            "description": result.get("description"),
            "cover_url": result.get("cover_url"),
            "book_url": url,
        }