import bs4
import logging
import requests
import utils

from ebooklib import epub


@utils.executor
def process(metadatas, output_dir):
    book = epub.EpubBook()
    book_items = []
    book.set_identifier("gravesong")
    book.set_title("Gravesong")
    book.set_language(metadatas["language"])
    book.set_cover("cover.jpg", open(metadatas["cover"], "rb").read())
    book.add_metadata("DC", "description", "Advance Patreon Edition")

    for author in metadatas["authors"]:
        book.add_author(author)

    response = requests.post(
        "https://wanderinginn.com/wp-pass.php",
        data={"post_password": "Iwalkedameadowweary", "Submit": "Enter"},
        headers={"Referer": "https://wanderinginn.com/2022/01/11/gravesong/"},
    )

    html = bs4.BeautifulSoup(response.content, "html.parser")
    entry_content = html.select_one("div.entry-content")
    content_as = entry_content.find_all("a")

    for content_a in content_as:
        content_a.decompose()

    chapter_title = "Introduction"
    chapter_content = ""
    chapter_index = 1

    for paragraph in entry_content.children:
        if paragraph.name == "h1":
            logging.log(logging.INFO, f"Gravesong - {chapter_title}")
            book_items.append(
                epub.EpubHtml(
                    title=chapter_title,
                    content=utils.generate_title_html(chapter_title, chapter_content),
                    file_name=f"{chapter_index}.xhtml",
                    lang=metadatas["language"],
                )
            )
            chapter_title = paragraph.get_text().strip()
            chapter_index += 1
        elif paragraph.name == "p":
            chapter_content += paragraph.prettify()

    logging.log(logging.INFO, f"Gravesong - {chapter_title}")
    book_items.append(
        epub.EpubHtml(
            title=chapter_title,
            content=utils.generate_title_html(chapter_title, chapter_content),
            file_name=f"{chapter_index}.xhtml",
            lang=metadatas["language"],
        )
    )

    logging.log(logging.INFO, "Gravesong - Book")
    for book_item in book_items:
        book.add_item(book_item)

    book.add_item(epub.EpubNcx())
    book.add_item(epub.EpubNav())
    book.toc = book_items
    book.spine = ["cover", "nav", *book_items]
    epub.write_epub(f"{output_dir}/Gravesong.epub", book)