from flask import Blueprint, current_app, Response

from app.services import BookService

bp = Blueprint("book", __name__)


@bp.route("/download")
def book_download():
    book_object = BookService()
    app = current_app._get_current_object()

    def generate():
        with app.app_context():
            yield from book_object.book_download()

    return Response(generate(), mimetype='text/event-stream')