# scraper/tasks/parse_tasks.py

from celery_app import celery_app
from logbus.publisher import log
from bs4 import BeautifulSoup
from scraper.utils import clean_text, load_replacements

print(">>> [IMPORT] parse_tasks.py loaded")


@celery_app.task(bind=True, queue="parse", ignore_result=False)
def parse_chapter(self, download_result: dict, meta: dict):
    """
    download_result:
      {
        "chapter": int,
        "url": str,
        "html": str
      }

    meta:
      {
        "title": str,
        "author": str,
        "description": str
      }
    """

    chapter_num = download_result["chapter"]
    url = download_result["url"]
    html = download_result["html"]

    log(f"[PARSE] Parsing chapter {chapter_num}")

    soup = BeautifulSoup(html, "lxml")

    selectors = [
        "#content",
        ".content",
        "div#content",
        "div.content",
        "div#chaptercontent",
        "#chapterContent",
        ".read-content",
    ]

    node = None
    for sel in selectors:
        tmp = soup.select_one(sel)
        if tmp:
            node = tmp
            break

    raw = node.get_text() if node else soup.get_text()

    # replacements
    REPL = load_replacements()
    text = clean_text(raw, REPL)

    # ---------------------------------------------------
    # HEADER ONLY FOR CHAPTER 1
    # ---------------------------------------------------
    if chapter_num == 1:
        header = (
            f"{meta.get('title','')}\n"
            f"Author: {meta.get('author','')}\n"
            f"Description:\n{meta.get('description','')}\n"
            f"URL: {url}\n" + "-" * 50 + "\n\n"
        )
        text = header + text

    log(f"[PARSE] Parsed chapter {chapter_num}: {len(text)} chars")

    return {
        "chapter": chapter_num,
        "url": url,
        "text": text,
        "length": len(text),
    }