# scraper/download_controller.py

from logbus.publisher import log
from scraper.tasks.pipeline import build_chapter_pipeline


class DownloadController:

    def __init__(self, url: str):
        self.url = url
        self.scraper = None  # door BookScraper gevuld
        self.base_path = None

    def start(self):
        log(f"[DL-CONTROLLER] Parsing metadata for {self.url}")

        # 1) Boek info verzamelen
        scraper = self.scraper = self._init_scraper()
        scraper.parse_book_info()

        # base_path bepalen
        self.base_path = scraper.get_base_path()

        # 2) Chapters ophalen
        chapters = scraper.get_chapter_list()

        # 3) Per chapter een Celery pipeline starten
        for ch in chapters:
            log(f"[DL-CONTROLLER] Queue pipeline for chapter {ch.number}")

            workflow = build_chapter_pipeline(
                chapter_number=ch.number,
                chapter_url=ch.url,
                base_path=self.base_path
            )

            workflow.delay()  # 🔥 dit start de chain

        return {"status": "queued", "chapters": len(chapters)}