# -*- coding: utf-8 -*-

###################
# Object builders #
###################

# Book

from typing import Self
from openbookr.models import Book
from openbookr.ABC import BookCreator


class BookBuilder(BookCreator):
    """
    Builder pattern for creating Book object
    """

    def __init__(self, title: str, hashkey: str):
        """
        :param title: Book title
        :param hashkey: Book file hash
        """
        self._create_book(title, hashkey)

    def set_author(self, author: str) -> Self:
        """
        Set book author

        :param: author: Book author name
        """
        self.book.author = author
        return self

    def set_description(self, description: str) -> Self:
        """
        Set book description

        :param description: Book description
        """
        self.book.description = description
        return self

    def add_tag(self, tag: str) -> Self:
        """
        Add tag to book

        :param tag: Tag name
        """
        tags = list(self.book.tags)
        tags.append(tag)
        self.book.tags = tags.__iter__()
        return self

    def add_genre(self, genre: str) -> Self:
        """
        Add genre to book

        :param genre: Book genre
        """
        genres = list(self.book.genres)
        genres.append(genre)
        self.book.genres = genres.__iter__()
        return self

    def _create_book(self, title: str, hashkey: str) -> None:
        self.book = Book(name=title, hashkey=hashkey)